CA2461750A1 - Acidic mono azo dyestuffs - Google Patents
Acidic mono azo dyestuffs Download PDFInfo
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- CA2461750A1 CA2461750A1 CA002461750A CA2461750A CA2461750A1 CA 2461750 A1 CA2461750 A1 CA 2461750A1 CA 002461750 A CA002461750 A CA 002461750A CA 2461750 A CA2461750 A CA 2461750A CA 2461750 A1 CA2461750 A1 CA 2461750A1
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- Prior art keywords
- phenyl
- substituted
- formula
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- 4alkyl
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/32—Inkjet printing inks characterised by colouring agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
- C09B29/28—Amino naphthols
- C09B29/30—Amino naphtholsulfonic acid
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
- C09B43/124—Preparation of azo dyes from other azo compounds by acylation of amino groups with monocarboxylic acids, carbamic esters or halides, mono- isocyanates, or haloformic acid esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/40—Preparation of azo dyes from other azo compounds by substituting hetero atoms by radicals containing other hetero atoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/32—Inkjet printing inks characterised by colouring agents
- C09D11/328—Inkjet printing inks characterised by colouring agents characterised by dyes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Coloring (AREA)
- Ink Jet (AREA)
Abstract
Disclosed are novel dyestuff for printing recording materials, especially textile fibre materials, paper and papery substrates and plastic films and plastic transparencies by the inkjet printing process of the formula (I) wherein all substituents are defined in the claims.
Description
ACIDIC MONO AZO DYESTUFFS
The invention relates to novel compounds, the use of such compounds andlor mixtures thereof as dyestuffs for printing recording materials, especially paper or papery substrates, textile fibre materials, plastic films and plastic transparencies by the inkjet printing process and also to the recording materials printed thereby.
Inkjet printing processes are becoming more and more important for industrial applications.
Inkjet printing processes are known. In what follows, the principle of inkjet printing will only be discussed very briefly. Details of this technology are described for example in the Ink-Jet-Printing section of R.W. I~enyon in "Chemistry and Technology of Printing and Imaging Systems", Peter Gregory (editor), Blackie Academic & Professional, Chapmann & Hall 1996, pages 113-13~, and references cited therein.
In the inkjet printing process, individual droplets of the ink are sprayed from a nozzle onto a substrate in a controlled manner. The continuous inkjet method and the drop-on-demand method are employed predominantly for this purpose. In the case of the continuous inkjet method, the droplets are produced continuously and droplets not needed for printing are diverted into a collecting vessel and recycled. In the case of the discontinuous drop-on-demand method, by contrast, droplets are generated and printed as desired, i.e. droplets are only generated when this is necessary for printing. The droplets may be generated for example by means of a piezo inkjet head or by means of thermal energy (bubble jet).
By additionally disposing at least one nozzle with yellow, magenta or cyan ink side by side it is possible to obtain colour reproductions in high quality. This process is known as polychromatic printing or, when three colour components are used, as trichromatic printing.
The composition of the invention can be used with all known and suitable inkjet printers for printing paper or papery substrates, textile fibre materials, plastic films and plastic transparencies. This applies not only to the use in monochromatic printing but also to polychromatic printing, especially trichromatic printing.
The composition of the ink for the inkjet printing process has to possess a suitable conductivity, sterility in storage, viscosity and surface tension to meet the specific requirements of inkjet ink. In addition, the prints on the recording materials have to have good properties and fastness.
Useful recording materials, as mentioned above, are preferably paper and papery substrates, textile fibre materials, plastic films and plastic transparencies.
But glass and metal may be used as well.
Useful papers or papery substrates include all known such materials.
Preference is given to papers or papery substrates coated on at least one side with a material which is particularly receptive to ink compositions. Such papers or papery materials are described inter alia in DE 3018342, DE 4446551, EP 164196 and EP 875393.
Useful textile fibre materials are in particular hydroxyl-containing fibre materials.
Preference is given to cellulosic fibre materials, which consist of or comprise cellulose.
Examples are natural fibre materials such as cotton, linen or hemp and regenerated fibre materials such as, for example, viscose and also lyocell.
Useful plastic films or plastic transparencies include all known such materials.
Preference is given to plastic films or plastic transparencies coated on at least one side with a material which is particularly receptive to the ink compositions. Such plastic films or plastic transparencies are described inter alia in EP 755332, US
4935307, US
4956230, US 5134198 and US 5219928.
This invention provides dyestuff of formula (I) wherein Rl is H; Cl~alkyl; substituted CI_4alkyl; phenyl or substituted phenyl, R2 is H; Cl~alkyl; substituted Cl~alkyl; C1_4alkoxy; -COOH; -COOCH3; -CF3;
-S03H or -CN, R3 is H; Cl~alkyl; substituted CI_4alkyl; Cl~alkoxy; -S03H; -CN; acetylamino;
-OI-I; -CF3 or -SOZRS, wherein RS is unsubstituted C1_4alkyl or substituted C1_4alkyl, R4 is H; unsubstituted C1_4alkyl or substituted C1_4alkyl, O
I I
A is a radical of formula -C-B-X
wherein B is unsubstituted phenylene; substituted phenylene or C1_4alkylene, X is -S03H or -SO2R5 wherein RS has the same meanings as defined above, or A is a radical of formula -S02R6, wherein R6 is unsubstituted C1_4alkyl; substituted C1_4alkyl;
unsubstituted phenyl or substituted phenyl, m is 0 or 1, as free acid or in salt form, as well as mixtures thereof Preferred compounds of formula (I) are characterized in that R, is C1_2alkyl; Cl_aalkyl which is substituted by -CN, halogen, or -COOH;
phenyl or phenyl which is substituted by at least one substituent of the group consisting of C1_zalkyl, CI_Zalkoxy, halogen, -S03H, -COOH, -OH or -CN, R2 is H; C1_Zalkyl; substituted C1_Zalkyl; C1_2alkoxy; -COOH; -COOCH3; -S03H
or -CN, R3 is H; C1_2alkyl; substituted CI_Zalkyl; CI_Zalkoxy; -S03H; -CN;
acetylamine; -OH
or -CF3, R4 is H or C1_2alkyl, X is -S03H or -S02R5, wherein RS is C1_2alkyl; substituted C1_2alkyl; phenyl or substituted phenyl, B is unsubstituted phenylene or C1_4alkylene, R6 is C1_Zalkyl; unsubstituted phenyl or phenyl which is substituted by CI_2alkyl or C1_2alkoxy, and m is0orl.
Preferred compounds according to formula (I) have the formula (Ia) H C (C
(Ia) wherein Rl signifies H; -CH3; -CHaCH3; substituted CZ-alkyl; phenyl; monosubstituted phenyl or disubstituted phenyl, R~ signifies H; -OCH3; -COOH or -COOCH3, R3 signifies H, -SO3H; -CN; -CF3; -CH3; -OCH3 or acetylamino, m signifies 0 or 1, and n signifies 1, 2 or 3.
More preferred compounds according to formula (I) have the formula (Ian (H R2 =N N-O- CH /S03H
H ( 2~n (Ian wherein Rl signifies H; -CH3; CHZCH2CN; by methyl or sulfo monosubstituted phenyl or disubstituted phenyl, RZ signifies H; -OCH3; -COOH or -COOCH3, R3 signifies H, -S03H; -CN; -CF3; -CH3; -OCH3, m signifies 0 or l, and n signifies l, 2 or 3.
Further preferred compounds according to formula (I) have the formula (Ib) R~
H-C-(CH2)n R (Ib) wherein Rl signifies H; -CH3; -CHaCH3; substituted C2-alkyl; phenyl; monosubstituted phenyl or disubstituted phenyl, R2 signifies H; -OCH3; -COOH or -COOCH3, R3 signifies H; -S03H; CN; -CF3; -CH3 or -OCH3, n signifies l, 2 or 3 m signifies 0 or 1.
R~
Further more preferred compounds according to formula (I) have the formula (Ib~
=N N-O- CH ~S02CH20H
H ~ 2~n H R3 (Ib') S wherein R1 signifies H; -CH3; CHZCHZCN; by methyl or sulfo monosubstituted phenyl or disubstituted phenyl, R3 signifies H; -S03H; CN; -CF3; -CH3 or -OCH3, n signifies 1, 2 or 3 m signifies 0 or 1.
Further preferred compounds according to formula (I) have the formula (Ic) R~
N ~ ~ H SO2 R6 (Ic) wherein RI signifies H; -CH3; -CH2CH~; substituted C2-alkyl; phenyl; monosubstituted phenyl or disubstituted phenyl, R3 signifies H; -S03H; -CN; -CF3; -CH3 or -OCH3, R6 signifies unsubstituted C1_4alkyl; unsubstituted phenyl; monosubstituted phenyl or disubstituted phenyl, m signifies 0 or 1.
Further more preferred compounds according to formula (I) have the formula (Icy R~
(H
N ~ ~ H S02 Rs R3 (Ic') wherein Rl signifies H; -CH3; CH2CH2CN; by methyl or sulfo monosubstituted phenyl or disubstituted phenyl, R3 signifies H; -S03H; -CN; -CF3; -CH3 or -OCH3, R6 signifies unsubstituted C1_4alkyl; unsubstituted phenyl; monosubstituted phenyl or disubstituted phenyl, m signifies 0 or 1.
A further embodiment of the present invention is the preparation of compounds of formula (I) characterized in that in a first step a compound of formula (VII) R~
=N ~ ~ NH2 (VII) wherein all substituents have the meanings as defined above are reacted with a compound of formula (VIIIa) or (VIIIb) O
I I
O CI-S-Rs II (VIIIa) II (VIIIb) CI-C-B-CI or O in H20/NaOH.
The reaction with the educt of formula (VIIIa) leads directly to compounds according to formula (I) wherein X is Cl; whereas the reaction with the educt of formula (VIIIb) leads directly to compounds according to formula (I) wherein A is SOZR6.
In a second step the product of formula (IX) R~
N-C-B-CI
H II
O
R (IX) obtained by the reaction with the educt of formula (VIIIa) is reacted with Na2S03 or NaSO2Rs in an aqueous media to obtain a compound according to formula (I~
R~
(H R2 N ~ ~ H O B X (I~
wherein all substituents have the same meanings as defined above.
In the procedure of producing the compounds the starting compound of formula (VII) can be synthesized by known processes.
In the first step of the abovementioned reaction the temperature is in the range of 0°C to 40°C, preferably 0°C to 25°C and the pH is in the range of 3 to 6, preferably 4 to 5.
In the second step of the abovementioned reaction the temperature is in the range of 50 -90°C, preferably 60 to 80°C and the pH is in the range of 3 to 7, preferably 4 to 6.
Any alkyl or alkylene group may be linear or branched.
Useful canons for salt formation include in particular alkali metal, alkaline earth metal as well ammonium cations. Examples of such cations are alkali metal cations, for example potassium, lithium or sodium ions and ammonium cations, e.g. mono-, di-, tri-or tetra-methyl ammonium cations or mono-, di-, tri- or tetra-ethyl ammonium cations or mono-, di- or tri-ethanol ammonium cations. The cations may be the same or different, i.e. the compounds may be in mixed salt-form.
The dyestuffs according to the invention may be used for shading other dystuffs or dyestuff mixtures. The compounds (I) according to the invention may be mixed with other colorants to match exactly the desired hue. In principle any other colorant which is compatible with the compounts according to the invention may be used for this purpose.
On the other hand the compounds according to the invention having the formula (I) may itself be used as shading component for shading other colorants.
The mixtures according to the invention itself may be used as a shading component and blended with other compatbibles dyestuff mixtures to achieve the desired shade.
Instead of blending the dystuff to the mixtures it is also possible to prepared inks as described below and mix these inks of different shades to achieve the desired colour.
The amount of shading colorants are present in this mixtures is dependent on the shade that should be achieved. For example the sghaded mixtures of dyes may comprise 50 - 99 wt-% of at least one compound according to formula (I) and 1 - 50 wt-% of at least one compound described as shading component as described and listed below, but not a compound according to formula (I).
By preference the shading component is present in an amount of 0.001 to 5% by weight, preferably 0.01 to 1 % by weight, based on the total weight of the dry dye mixture.
For example the shading colorant may be selected (among others) from the group consisting of C.I. Direct Red l, 11, 37, 62, 75, 81, 87, 89, 95, 227; C.I.
Acid Red 115, 131, 144, 152, 186, 245, C.I. Pigment Red 122, 176, 184, 185 and 269.
In preferred mixtures, compounds according to formula (I) are mixed with at least one compound selected from C.I. (Colour Index) Acid Red 50, C.I. Acid Red 51, C.I.
Acid Red 52, C.I. Acid Red 87, C.I. Acid Red 91, C.I. Acid Red 92, C.I. Acid Red 93, C.I.
Acid Red 94, C.I. Acid Red 95, C.I. Acid Red 98 and C.I. Acid Red 289.
In further preferred mixtures, compounds according to formula (I) are mixed with at least one compound selected from C.I. Acid Red 1, C.I. Acid Red 33, C.I. Acid Red 35, C.I. Acid Red 40, C.I. Acid Red 76, C.I. Acid Red 106, C.I. Acid Red 138, C.I.
Acid Red 155, C.I. Acid Red 160, C.I. Acid Red 172, C.I. Acid Red 249, C.I. Acid Red 264 and C.I. Acid Red 265.
In further preferred mixtures, compounds according to formula (I) are mixed with at least one compound selected from C.I. Acid Red 15, C.I. Acid Red 19, C.I. Acid Red 29, C.I. Acid Red 60, C.I. Acid Red 68, C.I. Acid Red 154 and C.I. Acid Red 176.
In further preferred mixtures, compounds according to formula (I) are mixed with at least one compound selected from C.I. Acid Red 30, C.I. Acid Red 34, C.I. Acid Red 37, C.I. Acid Red 42, C.I. Acid Red 54, C.I. Acid Red 57, C.I. Acid Red 231, C.I. Acid Red 266, C.I. Acid Red 301 and C.I. Acid Red 337 Especially preferred mixture comprises a compound according to formula (I) and C.I.
Acid Red 52 and/or C.I. Acid Red 289 which have the following formulae (HSCz}=N ~ 0 ' N(C?HS)z CHI H H CH3 \ I ~ I\ I ~ "
~I I I
S°s \ CHS\ + \ HOC \~S°3N8 w I / SOi I
so,NA , \ respectively.
It is possible to use the dyestuff (I) without any further dyestuff in the composition Ink jet printing compositions according the present invention.
A further embodiment of the present invention relates to a composition for printing recording materials, preferably paper and papery substrates, textile fibre materials, plastic films and plastic transparencies by the inkjet printing process, comprising 1 ) the dye of the formula (I) as defined above and 2) water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point, The inkjet printing composition may optionally comprise further additives.
A further embodiment of the present invention relates to a inkjet printing composition for printing recording materials, preferably paper and papery substrates, textile fibre materials, plastic films and plastic transparencies, comprising 1 ) a mixture of dyestuffs as defined above and r 2) water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point, The inkjet printing composition may optionally comprise further additives.
A further embodiment of the invention relates to the use of the above mentioned compositions for the ink jet printing process.
The dyes of the formula (I) used in the inks should preferably be low in salt, i.e. have a total salt content of less than 0.5% by weight, based on the weight of the dyes. Dyes having higher salt contents (owing to their preparation and/or the subsequent addition of extenders) may be desalted, for example by means of membrane separation processes, such as ultrafiltration, reverse osmosis or dialysis.
The inks preferably include a total amount of dyes which is in the range from 0.5 to 35% by weight, preferably in the range from 1 to 35% by weight, more preferably in the range from 2 to 30% by weight, most preferably in the range from 2.5 to 20% by weight, based on the total weight of the ink.
The inks include 99.5 - 65% by weight, preferably 99 - 65% by weight, more preferably 98 - 70% by weight, most preferably 97.5 - 80% by weight, of an abovementioned medium 2), which includes a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point.
When said medium 2) is a mixture including water and an organic solvent or an anhydrous organic solvent, the dye mixtures comprising at least one compounds of formula (I) are preferably completely dissolved in this medium.
Preferably the dye mixtures comprising at least one compounds of formula (I) have a solubility of not less than 2.5% by weight in this medium 2) at 20°C.
When the ink composition of the invention is used for printing paper or papery substrates, the inks are preferably used together with the following compositions.
When the medium is a mixture of water and an organic solvent, the weight ratio of water to organic solvent is preferably in the range from 99:1 to 1:99, more preferably in the range from 99:1 to 50:50, particularly preferably in the range from 95:5 to X0:20.
It is preferable for the organic solvent, which is included in the mixture with water to be a water-soluble solvent or a mixture of various water-soluble solvents.
Preferred water-soluble organic solvents are C1_6-alcohols, preferably methanol, ethanol, n-propanol, isopropanol, n-butanol, sec-butanol, tert-butanol, n-pentanol, cyclopentanol and cyclohexanol; linear amides, preferably dimethylformamide, or dimethylacetamide;
ketones and keto alcohols, preferably acetone, methyl ethyl ketone, cyclohexanone and diacetone alcohol; water-miscible ethers, preferably tetrahydrofuran and dioxane; diols, preferably diols possessing 2 to 12 carbon atoms, e.g. 1,5-pentanediol, ethylene glycol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol and thiodiglycol and oligo- and poly-alkylene glycols, preferably diethylene glycol, triethylene glycol, 1,2-propylenglycol, polyethylene glycol and polypropylene glycol; triols, preferably glycerol and 1,2,6-hexanetriol; mono-C1_4-alkyl ethers of diols, preferably mono-CI_4-alkyl ethers of diols possessing 2 to 12 carbon atoms, particularly preferably methoxyethanol, 2-(2-methoxyethoxy)ethanol, 2-(2-ethoxyethoxy)ethanol, 2-[2-(2-methoxyethoxy)ethoxy]-ethanol, 2-[2-(2-ethoxyethoxy)ethoxy]ethanol, diethylenglycol-mono-n-butylether, ethylene glycol monoallyl ether and polyoxyethylenalkylether (for example Emulgen 66 of KAO Corp. (Emulgen is a trade mark of the Kao Corp.));
alkanolamines, preferably 2-diethylamine-1-ethanol, 3-dimethylamine-1-propanol, 3-diethylamine-1-propanol, 2-(2-aminoethoxy)ethanol, 2-(2-dimethylaminoethoxy)-ethanol, 2-(2-diethylaminoethoxy)ethanol, mono-, di-, triethanolamine, monoglycolamines and polyglycolamines, which may be obtained by reaction of ammonia, alkyl- or hydroxyalkylamines like methylamine, ethylamine, dimethylamine, diethylamine, mono-, di- and triethanolamines with alkyleneoxides for example ethylenoxide, 1,2-propylenoxide, 1,2-butylenoxide or 2,3-butylenoxide in suitable ratios as described in DE2061760A, preferably diethylenglycolamine, triethylenglycolamin, Bis-diethylenglycolamin, polyoxyethylen-(6)-triethanolamine, polyoxyethylen-(9)-triethanolamine, o-(2-aminoethyl)-polyethylenglycol 750, o,o-Bis-(2-aminopropyl)-polyethylenglycol 500, 800, 1900, 2000, o,o'-Bis-(3-aminopropyl)-polyethylenglycol 1500, cyclic amides, preferably 2-pyrrolidone, N-methyl-2-pyrrolidone, N-ethyl-pyrrolidone, N-(2-hydroxy)ethyl-2-pyrrolidone, caprolactam and 1,3-dimethylimidazolidone; cyclic esters, preferably caprolactone; sulphoxides, preferably dimethyl sulphoxide and sulpholane.
In a preferred composition, the medium as per 2) includes water and at least 2 or more, more preferably 2 to 8, water-soluble organic solvents.
Particularly preferred water-soluble solvents are cyclic amides, particularly pyrrolidone, N-methyl-2-pyrrolidone and N-ethyl-2-pyrrolidone; N-(2-hydroxy)ethyl-2-pyrrolidone, C,_6-alcohols, preferably n-propanol, cyclohexanol, diols, preferably 1,5-pentanediol, ethylene glycol, thiodiglycol, diethylene glycol, triethylene glycol and 1,2-propyleneglycol, triols, preferably glycerol; and mono-Ci_d-alkyl and C1_4-alkyl ethers of diols, more preferably mono-C1_4-alkyl ethers of diols possessing 2 to 12 carbon atoms, particularly preferably 2-[2-(2-methoxyethoxy)-ethoxy]-ethanol, diethylenglycol-mono-n-butylether, (for example Emulgen 66 of KAO Corp.
(Emulgen is a trade mark of the Kao Corp.)), 2-diethylamine-1-ethanol, 3-dimethylamine-propanol, 3-diethylamine-1-propanol, 2-(2-diethylaminoethoxy)-ethanol, triethanolamine, diethylenglycolamin, polyglycolamines, preferably polyoyxethylen (6)-triethanolamin, polyoxyethylen-(9)-triethanolamine, o-(2-aminoethyl)-polyethylen 750, o,o-bis-(2-aminopropyl)-poyethylen 500 and o,o-bis-(3-aminopropyl) polyethylenglyco11500.
A preferred medium as per 2) comprises (a) 75 to 95 parts by weight of water and (b) 25 to 5 parts of one or more of the watersoluble solvents.
wherein the parts are by weight and all parts of (a) and (b) add up to 100.
Examples of further useful ink compositions including water and one or more organic solvents are found in the Patent Specifications US 4963189, US 4703113, US
and EP 425150A.
When the medium as per 2) includes an anhydrous (i.e. less than 1 % by weight of water) organic solvent, this solvent will have a boiling point of 30 to 200°C, more preferably of 40 - 150°C, particularly preferably of 50 - 125°C.
The organic solvent can be water-insoluble, water-soluble or mixtures of such solvents.
Preferred water-soluble organic solvents are all above-described water-soluble organic solvents and mixtures thereof.
Preferred water-insoluble solvents include inter alia aliphatic hydrocarbons;
esters, preferably ethyl acetate; chlorinated hydrocarbons, preferably CHZC12; and ethers, preferably diethyl ether; and mixtures thereof.
When the liquid medium as per 2) includes a water-insoluble organic solvent, it is preferable to add a polar solvent to increase the solubility of the dye in the liquid medium.
Examples of such polar solvents are C1_4-alcohols, preferably ethanol or propanol;
ketones, preferably methyl ethyl ketone.
The anhydrous organic solvent can consist of a single solvent or a mixture of 2 or more different solvents.
When it is a mixture of different solvents, a mixture including 2 to 5 different anhydrous solvents is preferred. This makes it possible to provide a medium as per 2) which permits good control of the drying properties and of the stability of the ink composition in storage.
Ink compositions including an anhydrous organic solvent or mixtures thereof are of particular interest when rapid drying times are required and especially when they are used for prints on hydrophobic and non-absorbing substrates, such as plastic, metal and glass.
Preferred low-melting media have a melting point of 60 to 125°C. Useful low-melting solids include long-chain fatty acids or alcohols, preferably those having a C18_2a-carbon chain, and sulphonamides.
The ink composition of the invention may further include as auxiliaries additional components which are normally used in inkjet inks, for example viscosity improvers, surface tension improvers, biocides, corrosion inhibitors, levelling agents, drying agents, humefactants, ink penetration additives, light stabilizers, UV
absorbers, optical brighteners, coagulation reducers, ionic or nonionic surfactants, conducting salts and pH
buffers.
These auxiliaries are preferably added in an amount of 0 - 5% by weight.
To prevent precipitation in the ink compositions of the invention, the dyes used have to be purified clean. This can be done with commonly known purifying methods.
When printing textile fibre materials, useful additives, as well as the solvents, include water-soluble nonionic cellulose ethers or alginates.
The preferred material is paper. The paper may be plain or treated.
Preference is given to ink compositions having a viscosity of 1 to 40 mPa's, especially 5 to 40 mPa's, preferably 10 to 40 mPa's. Ink compositions having a viscosity of 10 to 35 mPa.s are particularly preferred.
Preference is given to ink compositions having a surface tension of 15 - 73 mN/m, especially 20 - 65 mN/m, particularly preferably 30 - 50 mN/m.
Preference is given to ink compositions having a conductivity of 0.1 - 100 mS/cm, especially 0.5 - 70 mS/cm, particularly preferably 1.0 - 60 mS/cm.
The inks may further include buffer substances, for example borax, borate or citrate.
Examples are sodium borate, sodium tetraborate and sodium citrate.
They are used in particular in amounts of 0.1 to 3% by weight, preferably 0.1 to 1% by weight, based on the total weight of the ink, to set a pH of for example 5 to 9, especially 6 to 8. A citrate buffer is preferred in the case of alginatic inks.
The inks may further include customary additives, for example foam suppressants or especially fungal andlor bacterial growth inhibitors. These are customarily used in amounts of 0.01 to 1 % by weight, based on the total weight of the ink.
The printing inks and also the dye mixtures comprise at least the compound of formula CI).
The prints obtainable by the process of the invention have good general fastnesses, a good lightfastness and also sharp contours and a high colour strength. The inks provide prints of high optical density. Especially good brilliance together with a good light fastness is achieved with the dyes according to the invention.
The printing inks used are notable for good stability and good viscosity properties. The recording fluids of the invention have viscosity and surface tension values which are within the ranges suitable for the ink jet processes. The viscosity remains virtually unchanged even in the event of high shearing forces occurring during printing.
Recording fluids according to the invention in storage are not prone to the formation of precipitates that leads to fuzzy prints or nozzle cloggage.
A further aspect of the present invention is the use of the printing ink in trichromatic printing. Trichromatic printing is a very large application for all recording materials.
This form of printing is. normally carned out with a yellow, red and blue ink composition. Furthermore, the magenta dye mixtures of the invention may be used as an ink set in combination with black, yellow and/or cyan recording fluids.
This invention further provides recording materials, which have been printed with a composition according to the invention.
Moreover, the dye mixtures of the invention are useful as colorants in the electrophotographic toners and developers, for example one- and two-component powder toners, magnetic toners, liquid toners, polymerization toners and other specialty toners.
Typical toner binders are addition polymerization, polyaddition and polycondensation resins, such as styrene, styrene-acrylate, styrene-butadiene, acrylate, polyester, phenolic and epoxy resins, polysulfones, polyurethanes, individually or in combination, and also polyethylene and polypropylene, in or to which further ingredients, such as charge control agents, waxes or flow agents, may be present or added subsequently.
Dye mixtures according to the invention are further useful as colorants in powders and powder coating materials, especially triboelectrically or electrostatically sprayed powder coating materials, which are used to coat the surfaces of articles made for example of metal, wood, plastic, glass, ceramic, concrete, textile material, paper or rubber. Powder coating resins employed are typically epoxy resins, carboxyl-and hydroxyl-containing polyester resins, polyurethane resins and acrylic resins together with customary curing agents. Combinations of resins are also used. For instance, epoxy resins are frequently used in combination with carboxyl- and hydroxyl-containing polyester resins.
The dye mixtures of the invention are also useful as colorants for color filters, for additive as well as subtractive color generation (P. Gregory "Topics in Applied Chemistry: High Technology Applications of Organic Colorants" Plenum Press, New York 1991, page 15-25), and also as colorants in electronic inks for electronic newspapers.
The examples hereinbelow illustrate the invention. Temperatures are in degrees Celsius;
parts and percentages are by weight, unless otherwise stated.
Examples of ink compositions:
A preferred ink composition according to the invention comprises 0.5 - 35 parts of a of formula (I), 65 - 99.5 parts of water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point and optionally 0 - 5 parts of one or more additives.
A more preferred ink composition according to the invention comprises 1 - 20 parts of a of formula (I), 80-99 parts of water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point and optionally 0 - 5 parts of one or more additives.
A particularly preferred ink composition according to the invention comprises 1 - 5 parts of a of formula (I), 95 -99 parts of water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point and optionally 0 - 5 parts of one or more additives.
A more preferred ink composition according to the invention comprises 0.5 - 35 parts of a dye mixtures comprising at least one compound of formula (I) and at least C.I. Acid Red 52 or C.I. Acid Red 289, and 65 - 99.5 parts of water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point and optionally 0 - 5 parts of one or more additives.
A particularly preferred ink composition according to the invention comprises 1 - 20 parts of a dye mixtures comprising at least one compound of formula (I) and at least C.I. Acid Red 52 or C.I. Acid Red 289, and 80-99 parts of water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point and optionally 0 - 5 parts of one or more additives.
A further preferred ink composition according to the invention comprises 1 - 5 parts of a dye mixtures comprising at least one compound of formula (I) and at least C.I. Acid Red 52 or C.I. Acid Red 289, and 95 -99 parts of water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point and optionally 0 - 5 parts of one or more additives.
The sum total of all the parts of the abovementioned compositions according to the invention is 100 parts.
The above mentioned composition is preferably prepared by heating the medium to 40°C and then adding a dye mixtures comprising at least one compound of formula (I) and at least C.I. Acid Red 52 or C.I. Acid Red 289. The composition is then cooled down to room temperature.
This ink composition is preferably used for printing papers or papery substrates.
The following Examples further serve to illustrate the invention, without restricting the scope of protection to these Examples. In the Examples all parts and all percentages are by weight, and the temperatures given are in degrees Celsius, unless indicated to the contrary.
Example 1 a) Diazotizatio~ arzd coupling 46 g (0.2 mol) 1-acetylamino-4-aminobenzene-3-sulfonic acid are diazotized indirectly in 300 ml water. The reaction solution is added to a suspension of 47.8 g 2-amino-8-hydroxynaphthalin-6-sulfonic acid in 500 ml water at 5°C. The pH-value is adjusted to 2.5 - 4 by adding sodiumacetate-solution. After the termination of this reaction the compound of formula (IX) N-N ~ \ N~GH
\ / H
\ /~°H
is filtered off.
b) Sapozzificatiozz 252 g of the moist presscake of the compound (IX) obtained by a) is added to 600 ml water. 5 volume percent (v1-%) of solid sodium hydroxide is added and the reaction mixture is heated to 70°C for a period of 3 h.
After the termination of the reaction the product is salted out and filtered off. A
compound of formula (X) N=N ~ ~ NH2 OH
is obtained.
c) Condensation 138 g of the moist presscake consisting of the compound of formula (X) is added to 700 ml of water and the pH-value is adjusted to 4.5.
28 g 3-chloropropionic acid chloride is added slowly during a period of 15 min at a pH-value of 3.5 - 4.5 and a temperature of 5 - 12°C. After 2 hours a compound of formula (XI) N=N ~ ~ N_ v 'CI
H
OH (XI) is salted out and filtered off.
d) Substitution 170 g of the moist presscake consisting of the compound of formula (XI) is added to 700 ml of water and the pH-value is adjusted to 5. 50 g of sodium sulfite are added and the reaction solution is stirred for 2 h at a temperature of 70°C.
The dyestuff of formula (XII) N=N ~ ~ N' v -SO3H
H
/ off (xa) with a ~l,max of 514.7 nm (measured in 2 wt-%o sodium acetate in HZO at room temperature), is obtained by salting-out and a subsequent filtration.
Example 2 a) Diazotization and coupling 46 g 2-amino-5-nitro-benzotrifluoride are diazotized in 250 ml water at 5°C. The reaction solution is added to a suspension of 31.9 g 2-amino-8-hydroxynaphthalin-3,6 disulfonic acid in 300 ml water at 5°C. The pH-value is adjusted to 2.5 - 3 by adding sodiumacetate-solution. After the termination of this reaction the compound of formula (XIII) ~N ~ ~ N02 (XIII) is filtered off.
b) Reduction 143 g of the moist presscake of the compound (XIII) obtained by a) is added to 500 ml water. Sodium sulfide is added at a temperature of 20°C. After the termination of the reaction, the solution is acidified and the product is salted out and filtered off. A
compound of formula (XIV) N ~ \ NH2 (XIV) is obtained.
c) Condensation 143 g of the moist presscake consisting of the compound of formula (XIV) is added to 600 ml of water and the pH-value is adjusted to 4.5.
5 ml monochloroacetyl chloride is added slowly at a pH-value of 4.5 - 5. The pH-value . is controlled by the addition of sodium hydroxide. After 2 h a compound of formula (XV) N-N ~ ~ NCI
H
OH (XV) is salted out and filtered off.
d) Substitution 91 g of the moist presscake consisting of the compound of formula (XV) is added to 500 ml of water and the pH-value is adjusted to 5. 25 g of sodium sulfite are added and the reaction solution is stirred for 1 h at a temperature of 70°C.
The dyestuff of formula (XVI) N=N ~ ~ N~S03H
H
/ off (XVI) with a a,a,aX of 514.3 nm (measured in 2 wt-%o sodium acetate in HZO at room temperature), is obtained by salting-out and a subsequent filtration.
Example 3 a) Condensatiofz 13S g of the moist presscake consisting of the compound of formula (X) is added to 700 ml of water and the pH-value is adjusted to 4.5.
30 g CIS02CH2CH3 is added slowly during a period of 15 min at a pH-value of 4.5.
After 2 hours a compound of formula (XVII) N=N ~ ~ H-i l-CH2CH3 (VII) O
OH
with a a.max of 513.0 nm (measured in 2 wt-%o sodium acetate in HZO at room temperature), is salted out and filtered off.
TABLE 1 Examples 4 - 42 Analogously to Example 1 the following examples are obtained.
Rz _ O
N N-C- B ~S03H
H
Exp.R1 RZ Rs B Amax* [nm]
4 H H -S03H -CH2- 515.2 H H -CN -CH2- 512.1 6 H H -CN -CH2CH2- 516.1 7 H H -CF3 -CH2- 508.7 8 H H -CF3 -CH2CH2- 514.3 9 H H -CH3 -CH2- 498.0 H H -CH3 -CH2CH2- 501.2 11 H H -OCH3 -CH2- 504.7 12 H H -OCH3 -CHZCHa- 508.3 13 H -OCH3 H -CH2- 503.1 14 H -OCH3 H -CH2CH2- 505.2 H -COOH H -CH2- 514.0 16 H -COOH H -CHaCH2- 512.9 17 H -COOCH3 H -CH2- 510.1 18 H -COOCH3 H -CH2CH2- 511.3 19 -CH3 H -S03H -CH2- 526.8 -CH3 H -SO3H -CH2CHa- 528.3 21 -CH3 H -CN -CH2- 521.7 22 -CH3 H -CN -CH2CH2- 522.4 23 -CH3 H -CF3 -CH2- 504.1 24 -CH3 H -CF3 -CHzCH~- 504.4 -CH3 H -CH3 -CH2- 506.8 26 -CH3 H -CH3 -CH2CH2- 509.2 27 -CH3 H -OCH3 -CHa- 517.1 28 -CH3 H -OCH3 -CHZCH2- 516.3 29 -CH3 -OCH3 H -CHa- 510.7 -CH3 -OCH3 H -CH2CHa- S 12:3 31 -CH3 -COOH H -CHa- 520.9 32 -CH3 -COOH H -CHZCH2- 524.7 33 -CH3 -COOCH3 H -CH2- 519.6 34 -CH3 -COOCH3 H -CHZCHa- 521.5 Exp. R1 RZ R3 B ~m$x* (nml 35 -CH2CH2CN H -S03H -CH2- 514.0 36 -CH2CHZCN H -S03H -CHZCH2- 512.9 37 phenyl H -S03H -CHz- 536.1 38 phenyl H -S03H -CHZCHZ- 535.7 39 m-sulfo-phenyl H -S03H -CHZ 538.2 40 m-sulfo-phenyl H -S03H -CHzCH2- 539.4 41 xylyl H -S03H -CHZ- 526.1 42 xylyl H -S03H -CH2CHZ- 526.4 *~maX values are measured in 2 wt-%o sodium acetate in HZO at room temperature) TABLE 2 Examples 43 - 81 Analogously to Example 2 the following examples are obtained.
N N_o- B /S03H
H
Exp. R1 RZ R3 B Amax* (nm]
43 H H -S03H -CHa- 520.4 44 H H -S03H -CH2CH2- 521.0 45 H H -CN -CH2- 519.3 46 H H -CN -CH2CH2- 521.5 47 H H -CF3 -CHZCHZ- 513.8 48 H H -CH3 -CH2- 504.2 49 H H -CH3 -CH2CH2- 506.0 50 H H -OCH3 -CH2- 512.6 51 H H -OCH3 -CHZCHZ- 512.1 Exp.R1 R B Amax* (nm]
52 H -OCH3 H -CHa- 509.4 53 H -OCH3 H -CHZCHZ- 510.3 54 H -COOH H -CHZ- 524.7 55 H -COOH H -CH2CH2- 524.1 56 H -COOCH3 H -CHZ- 517.6 57 H -COOCH3 H -CH2CHz- 520.1 58 -CH3 H -S03H -CHZ- 534.3 59 -CH3 H -S03H -CHZCH2- 535.0 60 -CH3 H -CN -CHZ- 531.7 61 -CH3 H -CN -CH2CH2- 533.5 62 -CH3 H -CF3 -CH2- 514.7 63 -CH3 H -CF3 -CH2CH2- 520.4 64 -CH3 H -CH3 -CHZ- 517.2 65 -CH3 H -CH3 -CH2CH2- 518.7 66 -CH3 H -OCH3 -CH2- 526.1 67 -CH3 H -OCH3 -CHaCH2- 527.5 68 -CH3 -OCH3 H -CH2- 519.9 69 -CH3 -OCH3 H -CH2CHa- 522.4 70 -CH3 -COOH H -CH2- 533.1 71 -CH3 -COOH H -CH2CH2- 536.3 72 -CH3 -COOCH3 H -CHa- 531.6 73 -CH3 -COOCH3 H -CH2CH2- 531.1 74 -CH~CH2CN H -S03H -CHZ- 519.8 75 -CHaCHaCN H -S03H -CH2CH2- 521.4 76 phenyl H -SO3H -CH2- 540.6 77 phenyl H -S03H -CHZCH2- 541.3 78 m-sulfo-phenyl H -S03H -CHZ- 543.2 79 m-sulfo-phenyl H -S03H -CH2CH2- 544.1 80 xylyl H -S03H -CHZ- 534.1 g1 xylyl H -S03H -CH2CHa- 535.7 x~maX values are measured in 2 wt-%o sodium acetate in HZO at room temperature) TABLE 3 Examples 82 - 100 Analogously to Example 3 the following examples are obtained.
R~
H03S)m NH
N=N ~ ~ H-S02CH2CH3 Exp. m Rt R3 a,",aX*
[nm]
82 0 H -CH3 500.3 83 0 H -OCH3 502.1 84 0 H -CN 515.8 85 0 H -CF3 512.4 86 0 -CH3 -S03H 531.3 87 0 phenyl -SO3H 532.4 88 0 m-sulfo-phenyl -SO3H 534.1 89 0 xylyl -SO3H 522.1 90 1 H -S03H 520.5 91 1 H -CN 521.5 92 1 H -CH3 502.6 93 1 H -OCH3 508.8 94 1 H -CF3 514.2 95 1 -CH3 -SO3H 526.4 96 1 -CH3 -CN 527.0 97 1 -CH3 -CH3 520.9 98 1 -CH3 -OCH3 522.7 99 1 phenyl -S03H 541.7 100 1 xylyl -S03H 528.3 t~max-values are measured in 2 wt-%o sodium acetate in H20 at room temperature) TABLE 4 Examples 101 - 140 Analogously to Example 1 the following examples are obtained.
O
I I
N ~ ~ H-C- B-S02CH20H
Exp. m Rl R3 B 7v,max*
(nm]
101 0 H -S03H -CHz- 512.8 102 0 H -S03H -CHzCHz-513.3 103 0 H -CH3 -CHz- 507.6 104 0 H -CH3 -CHZCHz-506.4 105 0 H -OCH3 -CHz- 508.8 106 p H -OCH3 -CH2CHz-509.1 107 0 H -CF3 -CHz- 511.3 108 0 H -CF3 -CH2CHz-510.1 109 0 -CH3 -S03H -CHz- 524.2 110 0 -CH3 -S03H -CH2CHz-526.5 111 0 -CH3 -CH3 -CHz- 512.4 112 0 -CH3 -CH3 -CHZCHz-511.7 113 0 -CH3 -OCH3 -CHz- 514.3 114 0 -CH3 -OCH3 -CH2CHz-514.9 115 0 -CH3 -CF3 -CHz- 514.6 116 0 -CH3 -CF3 -CH2CHz-515.3 117 0 phenyl-S03H -CHz- 531.7 118 0 phenyl-S03H -CH2CHz-533.0 119 0 xylyl -S03H -CHz- 523.8 120 0 xylyl -S03H -CH2CHz-524.2 Exp. m Rl R3 B Amax* [nm]
121 1 H -SO3H -CH2- 518.9 122 1 H -S03H -CH2CH2-519.4 123 1 H -CH3 -CH2- 511.6 124 1 H -CH3 -CHZCH2-511.1 125 1 H -OCH3 -CHZ- 513.0 126 1 H -OCH3 -CH2CH2-513.4 127 1 H -CF3 -CH2- 515.2 128 1 H -CF3 -CH2CH2-517.3 129 1 -CH3 -S03H -CHZ- 531.6 130 1 -CH3 -S03H -CH2CH2-533.7 131 1 -CH3 -CH3 -CH2- 522.4 132 1 -CH3 -CH3 -CH2CH2-524.0 133 1 -CH3 -OCH3 -CH2- 526.3 134 1 -CH3 -OCH3 -CH2CH2-527.5 135 1 -CH3 -CF3 -CHa- 523.7 136 1 -CH3 -CF3 -CH2CH2-525.7 137 1 phenyl-S03H -CH2- 538.9 138 1 phenyl-S03H -CHZCH2-541.6 139 1 xylyl -S03H -CH2- 533.2 140 1 xylyl -SO3H -CH2CH2-535.1 *7~",~ n H20 values at are room measured temperature) in wt-%o sodium acetate i Dyestuff mixtures The following dyestuff mixtures are used to formulate a composition for printing recording materials as described above. Such a composition comprises 1) a dyestuff or a mixture of dyestuffs as defined above and 2) water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point, and 3) optionally further additives.
Example 141 (Dyestuff mixture 1) 90 wt-% of the Example 1 and wt-% of C.I. Acid Red 52.
The invention relates to novel compounds, the use of such compounds andlor mixtures thereof as dyestuffs for printing recording materials, especially paper or papery substrates, textile fibre materials, plastic films and plastic transparencies by the inkjet printing process and also to the recording materials printed thereby.
Inkjet printing processes are becoming more and more important for industrial applications.
Inkjet printing processes are known. In what follows, the principle of inkjet printing will only be discussed very briefly. Details of this technology are described for example in the Ink-Jet-Printing section of R.W. I~enyon in "Chemistry and Technology of Printing and Imaging Systems", Peter Gregory (editor), Blackie Academic & Professional, Chapmann & Hall 1996, pages 113-13~, and references cited therein.
In the inkjet printing process, individual droplets of the ink are sprayed from a nozzle onto a substrate in a controlled manner. The continuous inkjet method and the drop-on-demand method are employed predominantly for this purpose. In the case of the continuous inkjet method, the droplets are produced continuously and droplets not needed for printing are diverted into a collecting vessel and recycled. In the case of the discontinuous drop-on-demand method, by contrast, droplets are generated and printed as desired, i.e. droplets are only generated when this is necessary for printing. The droplets may be generated for example by means of a piezo inkjet head or by means of thermal energy (bubble jet).
By additionally disposing at least one nozzle with yellow, magenta or cyan ink side by side it is possible to obtain colour reproductions in high quality. This process is known as polychromatic printing or, when three colour components are used, as trichromatic printing.
The composition of the invention can be used with all known and suitable inkjet printers for printing paper or papery substrates, textile fibre materials, plastic films and plastic transparencies. This applies not only to the use in monochromatic printing but also to polychromatic printing, especially trichromatic printing.
The composition of the ink for the inkjet printing process has to possess a suitable conductivity, sterility in storage, viscosity and surface tension to meet the specific requirements of inkjet ink. In addition, the prints on the recording materials have to have good properties and fastness.
Useful recording materials, as mentioned above, are preferably paper and papery substrates, textile fibre materials, plastic films and plastic transparencies.
But glass and metal may be used as well.
Useful papers or papery substrates include all known such materials.
Preference is given to papers or papery substrates coated on at least one side with a material which is particularly receptive to ink compositions. Such papers or papery materials are described inter alia in DE 3018342, DE 4446551, EP 164196 and EP 875393.
Useful textile fibre materials are in particular hydroxyl-containing fibre materials.
Preference is given to cellulosic fibre materials, which consist of or comprise cellulose.
Examples are natural fibre materials such as cotton, linen or hemp and regenerated fibre materials such as, for example, viscose and also lyocell.
Useful plastic films or plastic transparencies include all known such materials.
Preference is given to plastic films or plastic transparencies coated on at least one side with a material which is particularly receptive to the ink compositions. Such plastic films or plastic transparencies are described inter alia in EP 755332, US
4935307, US
4956230, US 5134198 and US 5219928.
This invention provides dyestuff of formula (I) wherein Rl is H; Cl~alkyl; substituted CI_4alkyl; phenyl or substituted phenyl, R2 is H; Cl~alkyl; substituted Cl~alkyl; C1_4alkoxy; -COOH; -COOCH3; -CF3;
-S03H or -CN, R3 is H; Cl~alkyl; substituted CI_4alkyl; Cl~alkoxy; -S03H; -CN; acetylamino;
-OI-I; -CF3 or -SOZRS, wherein RS is unsubstituted C1_4alkyl or substituted C1_4alkyl, R4 is H; unsubstituted C1_4alkyl or substituted C1_4alkyl, O
I I
A is a radical of formula -C-B-X
wherein B is unsubstituted phenylene; substituted phenylene or C1_4alkylene, X is -S03H or -SO2R5 wherein RS has the same meanings as defined above, or A is a radical of formula -S02R6, wherein R6 is unsubstituted C1_4alkyl; substituted C1_4alkyl;
unsubstituted phenyl or substituted phenyl, m is 0 or 1, as free acid or in salt form, as well as mixtures thereof Preferred compounds of formula (I) are characterized in that R, is C1_2alkyl; Cl_aalkyl which is substituted by -CN, halogen, or -COOH;
phenyl or phenyl which is substituted by at least one substituent of the group consisting of C1_zalkyl, CI_Zalkoxy, halogen, -S03H, -COOH, -OH or -CN, R2 is H; C1_Zalkyl; substituted C1_Zalkyl; C1_2alkoxy; -COOH; -COOCH3; -S03H
or -CN, R3 is H; C1_2alkyl; substituted CI_Zalkyl; CI_Zalkoxy; -S03H; -CN;
acetylamine; -OH
or -CF3, R4 is H or C1_2alkyl, X is -S03H or -S02R5, wherein RS is C1_2alkyl; substituted C1_2alkyl; phenyl or substituted phenyl, B is unsubstituted phenylene or C1_4alkylene, R6 is C1_Zalkyl; unsubstituted phenyl or phenyl which is substituted by CI_2alkyl or C1_2alkoxy, and m is0orl.
Preferred compounds according to formula (I) have the formula (Ia) H C (C
(Ia) wherein Rl signifies H; -CH3; -CHaCH3; substituted CZ-alkyl; phenyl; monosubstituted phenyl or disubstituted phenyl, R~ signifies H; -OCH3; -COOH or -COOCH3, R3 signifies H, -SO3H; -CN; -CF3; -CH3; -OCH3 or acetylamino, m signifies 0 or 1, and n signifies 1, 2 or 3.
More preferred compounds according to formula (I) have the formula (Ian (H R2 =N N-O- CH /S03H
H ( 2~n (Ian wherein Rl signifies H; -CH3; CHZCH2CN; by methyl or sulfo monosubstituted phenyl or disubstituted phenyl, RZ signifies H; -OCH3; -COOH or -COOCH3, R3 signifies H, -S03H; -CN; -CF3; -CH3; -OCH3, m signifies 0 or l, and n signifies l, 2 or 3.
Further preferred compounds according to formula (I) have the formula (Ib) R~
H-C-(CH2)n R (Ib) wherein Rl signifies H; -CH3; -CHaCH3; substituted C2-alkyl; phenyl; monosubstituted phenyl or disubstituted phenyl, R2 signifies H; -OCH3; -COOH or -COOCH3, R3 signifies H; -S03H; CN; -CF3; -CH3 or -OCH3, n signifies l, 2 or 3 m signifies 0 or 1.
R~
Further more preferred compounds according to formula (I) have the formula (Ib~
=N N-O- CH ~S02CH20H
H ~ 2~n H R3 (Ib') S wherein R1 signifies H; -CH3; CHZCHZCN; by methyl or sulfo monosubstituted phenyl or disubstituted phenyl, R3 signifies H; -S03H; CN; -CF3; -CH3 or -OCH3, n signifies 1, 2 or 3 m signifies 0 or 1.
Further preferred compounds according to formula (I) have the formula (Ic) R~
N ~ ~ H SO2 R6 (Ic) wherein RI signifies H; -CH3; -CH2CH~; substituted C2-alkyl; phenyl; monosubstituted phenyl or disubstituted phenyl, R3 signifies H; -S03H; -CN; -CF3; -CH3 or -OCH3, R6 signifies unsubstituted C1_4alkyl; unsubstituted phenyl; monosubstituted phenyl or disubstituted phenyl, m signifies 0 or 1.
Further more preferred compounds according to formula (I) have the formula (Icy R~
(H
N ~ ~ H S02 Rs R3 (Ic') wherein Rl signifies H; -CH3; CH2CH2CN; by methyl or sulfo monosubstituted phenyl or disubstituted phenyl, R3 signifies H; -S03H; -CN; -CF3; -CH3 or -OCH3, R6 signifies unsubstituted C1_4alkyl; unsubstituted phenyl; monosubstituted phenyl or disubstituted phenyl, m signifies 0 or 1.
A further embodiment of the present invention is the preparation of compounds of formula (I) characterized in that in a first step a compound of formula (VII) R~
=N ~ ~ NH2 (VII) wherein all substituents have the meanings as defined above are reacted with a compound of formula (VIIIa) or (VIIIb) O
I I
O CI-S-Rs II (VIIIa) II (VIIIb) CI-C-B-CI or O in H20/NaOH.
The reaction with the educt of formula (VIIIa) leads directly to compounds according to formula (I) wherein X is Cl; whereas the reaction with the educt of formula (VIIIb) leads directly to compounds according to formula (I) wherein A is SOZR6.
In a second step the product of formula (IX) R~
N-C-B-CI
H II
O
R (IX) obtained by the reaction with the educt of formula (VIIIa) is reacted with Na2S03 or NaSO2Rs in an aqueous media to obtain a compound according to formula (I~
R~
(H R2 N ~ ~ H O B X (I~
wherein all substituents have the same meanings as defined above.
In the procedure of producing the compounds the starting compound of formula (VII) can be synthesized by known processes.
In the first step of the abovementioned reaction the temperature is in the range of 0°C to 40°C, preferably 0°C to 25°C and the pH is in the range of 3 to 6, preferably 4 to 5.
In the second step of the abovementioned reaction the temperature is in the range of 50 -90°C, preferably 60 to 80°C and the pH is in the range of 3 to 7, preferably 4 to 6.
Any alkyl or alkylene group may be linear or branched.
Useful canons for salt formation include in particular alkali metal, alkaline earth metal as well ammonium cations. Examples of such cations are alkali metal cations, for example potassium, lithium or sodium ions and ammonium cations, e.g. mono-, di-, tri-or tetra-methyl ammonium cations or mono-, di-, tri- or tetra-ethyl ammonium cations or mono-, di- or tri-ethanol ammonium cations. The cations may be the same or different, i.e. the compounds may be in mixed salt-form.
The dyestuffs according to the invention may be used for shading other dystuffs or dyestuff mixtures. The compounds (I) according to the invention may be mixed with other colorants to match exactly the desired hue. In principle any other colorant which is compatible with the compounts according to the invention may be used for this purpose.
On the other hand the compounds according to the invention having the formula (I) may itself be used as shading component for shading other colorants.
The mixtures according to the invention itself may be used as a shading component and blended with other compatbibles dyestuff mixtures to achieve the desired shade.
Instead of blending the dystuff to the mixtures it is also possible to prepared inks as described below and mix these inks of different shades to achieve the desired colour.
The amount of shading colorants are present in this mixtures is dependent on the shade that should be achieved. For example the sghaded mixtures of dyes may comprise 50 - 99 wt-% of at least one compound according to formula (I) and 1 - 50 wt-% of at least one compound described as shading component as described and listed below, but not a compound according to formula (I).
By preference the shading component is present in an amount of 0.001 to 5% by weight, preferably 0.01 to 1 % by weight, based on the total weight of the dry dye mixture.
For example the shading colorant may be selected (among others) from the group consisting of C.I. Direct Red l, 11, 37, 62, 75, 81, 87, 89, 95, 227; C.I.
Acid Red 115, 131, 144, 152, 186, 245, C.I. Pigment Red 122, 176, 184, 185 and 269.
In preferred mixtures, compounds according to formula (I) are mixed with at least one compound selected from C.I. (Colour Index) Acid Red 50, C.I. Acid Red 51, C.I.
Acid Red 52, C.I. Acid Red 87, C.I. Acid Red 91, C.I. Acid Red 92, C.I. Acid Red 93, C.I.
Acid Red 94, C.I. Acid Red 95, C.I. Acid Red 98 and C.I. Acid Red 289.
In further preferred mixtures, compounds according to formula (I) are mixed with at least one compound selected from C.I. Acid Red 1, C.I. Acid Red 33, C.I. Acid Red 35, C.I. Acid Red 40, C.I. Acid Red 76, C.I. Acid Red 106, C.I. Acid Red 138, C.I.
Acid Red 155, C.I. Acid Red 160, C.I. Acid Red 172, C.I. Acid Red 249, C.I. Acid Red 264 and C.I. Acid Red 265.
In further preferred mixtures, compounds according to formula (I) are mixed with at least one compound selected from C.I. Acid Red 15, C.I. Acid Red 19, C.I. Acid Red 29, C.I. Acid Red 60, C.I. Acid Red 68, C.I. Acid Red 154 and C.I. Acid Red 176.
In further preferred mixtures, compounds according to formula (I) are mixed with at least one compound selected from C.I. Acid Red 30, C.I. Acid Red 34, C.I. Acid Red 37, C.I. Acid Red 42, C.I. Acid Red 54, C.I. Acid Red 57, C.I. Acid Red 231, C.I. Acid Red 266, C.I. Acid Red 301 and C.I. Acid Red 337 Especially preferred mixture comprises a compound according to formula (I) and C.I.
Acid Red 52 and/or C.I. Acid Red 289 which have the following formulae (HSCz}=N ~ 0 ' N(C?HS)z CHI H H CH3 \ I ~ I\ I ~ "
~I I I
S°s \ CHS\ + \ HOC \~S°3N8 w I / SOi I
so,NA , \ respectively.
It is possible to use the dyestuff (I) without any further dyestuff in the composition Ink jet printing compositions according the present invention.
A further embodiment of the present invention relates to a composition for printing recording materials, preferably paper and papery substrates, textile fibre materials, plastic films and plastic transparencies by the inkjet printing process, comprising 1 ) the dye of the formula (I) as defined above and 2) water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point, The inkjet printing composition may optionally comprise further additives.
A further embodiment of the present invention relates to a inkjet printing composition for printing recording materials, preferably paper and papery substrates, textile fibre materials, plastic films and plastic transparencies, comprising 1 ) a mixture of dyestuffs as defined above and r 2) water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point, The inkjet printing composition may optionally comprise further additives.
A further embodiment of the invention relates to the use of the above mentioned compositions for the ink jet printing process.
The dyes of the formula (I) used in the inks should preferably be low in salt, i.e. have a total salt content of less than 0.5% by weight, based on the weight of the dyes. Dyes having higher salt contents (owing to their preparation and/or the subsequent addition of extenders) may be desalted, for example by means of membrane separation processes, such as ultrafiltration, reverse osmosis or dialysis.
The inks preferably include a total amount of dyes which is in the range from 0.5 to 35% by weight, preferably in the range from 1 to 35% by weight, more preferably in the range from 2 to 30% by weight, most preferably in the range from 2.5 to 20% by weight, based on the total weight of the ink.
The inks include 99.5 - 65% by weight, preferably 99 - 65% by weight, more preferably 98 - 70% by weight, most preferably 97.5 - 80% by weight, of an abovementioned medium 2), which includes a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point.
When said medium 2) is a mixture including water and an organic solvent or an anhydrous organic solvent, the dye mixtures comprising at least one compounds of formula (I) are preferably completely dissolved in this medium.
Preferably the dye mixtures comprising at least one compounds of formula (I) have a solubility of not less than 2.5% by weight in this medium 2) at 20°C.
When the ink composition of the invention is used for printing paper or papery substrates, the inks are preferably used together with the following compositions.
When the medium is a mixture of water and an organic solvent, the weight ratio of water to organic solvent is preferably in the range from 99:1 to 1:99, more preferably in the range from 99:1 to 50:50, particularly preferably in the range from 95:5 to X0:20.
It is preferable for the organic solvent, which is included in the mixture with water to be a water-soluble solvent or a mixture of various water-soluble solvents.
Preferred water-soluble organic solvents are C1_6-alcohols, preferably methanol, ethanol, n-propanol, isopropanol, n-butanol, sec-butanol, tert-butanol, n-pentanol, cyclopentanol and cyclohexanol; linear amides, preferably dimethylformamide, or dimethylacetamide;
ketones and keto alcohols, preferably acetone, methyl ethyl ketone, cyclohexanone and diacetone alcohol; water-miscible ethers, preferably tetrahydrofuran and dioxane; diols, preferably diols possessing 2 to 12 carbon atoms, e.g. 1,5-pentanediol, ethylene glycol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol and thiodiglycol and oligo- and poly-alkylene glycols, preferably diethylene glycol, triethylene glycol, 1,2-propylenglycol, polyethylene glycol and polypropylene glycol; triols, preferably glycerol and 1,2,6-hexanetriol; mono-C1_4-alkyl ethers of diols, preferably mono-CI_4-alkyl ethers of diols possessing 2 to 12 carbon atoms, particularly preferably methoxyethanol, 2-(2-methoxyethoxy)ethanol, 2-(2-ethoxyethoxy)ethanol, 2-[2-(2-methoxyethoxy)ethoxy]-ethanol, 2-[2-(2-ethoxyethoxy)ethoxy]ethanol, diethylenglycol-mono-n-butylether, ethylene glycol monoallyl ether and polyoxyethylenalkylether (for example Emulgen 66 of KAO Corp. (Emulgen is a trade mark of the Kao Corp.));
alkanolamines, preferably 2-diethylamine-1-ethanol, 3-dimethylamine-1-propanol, 3-diethylamine-1-propanol, 2-(2-aminoethoxy)ethanol, 2-(2-dimethylaminoethoxy)-ethanol, 2-(2-diethylaminoethoxy)ethanol, mono-, di-, triethanolamine, monoglycolamines and polyglycolamines, which may be obtained by reaction of ammonia, alkyl- or hydroxyalkylamines like methylamine, ethylamine, dimethylamine, diethylamine, mono-, di- and triethanolamines with alkyleneoxides for example ethylenoxide, 1,2-propylenoxide, 1,2-butylenoxide or 2,3-butylenoxide in suitable ratios as described in DE2061760A, preferably diethylenglycolamine, triethylenglycolamin, Bis-diethylenglycolamin, polyoxyethylen-(6)-triethanolamine, polyoxyethylen-(9)-triethanolamine, o-(2-aminoethyl)-polyethylenglycol 750, o,o-Bis-(2-aminopropyl)-polyethylenglycol 500, 800, 1900, 2000, o,o'-Bis-(3-aminopropyl)-polyethylenglycol 1500, cyclic amides, preferably 2-pyrrolidone, N-methyl-2-pyrrolidone, N-ethyl-pyrrolidone, N-(2-hydroxy)ethyl-2-pyrrolidone, caprolactam and 1,3-dimethylimidazolidone; cyclic esters, preferably caprolactone; sulphoxides, preferably dimethyl sulphoxide and sulpholane.
In a preferred composition, the medium as per 2) includes water and at least 2 or more, more preferably 2 to 8, water-soluble organic solvents.
Particularly preferred water-soluble solvents are cyclic amides, particularly pyrrolidone, N-methyl-2-pyrrolidone and N-ethyl-2-pyrrolidone; N-(2-hydroxy)ethyl-2-pyrrolidone, C,_6-alcohols, preferably n-propanol, cyclohexanol, diols, preferably 1,5-pentanediol, ethylene glycol, thiodiglycol, diethylene glycol, triethylene glycol and 1,2-propyleneglycol, triols, preferably glycerol; and mono-Ci_d-alkyl and C1_4-alkyl ethers of diols, more preferably mono-C1_4-alkyl ethers of diols possessing 2 to 12 carbon atoms, particularly preferably 2-[2-(2-methoxyethoxy)-ethoxy]-ethanol, diethylenglycol-mono-n-butylether, (for example Emulgen 66 of KAO Corp.
(Emulgen is a trade mark of the Kao Corp.)), 2-diethylamine-1-ethanol, 3-dimethylamine-propanol, 3-diethylamine-1-propanol, 2-(2-diethylaminoethoxy)-ethanol, triethanolamine, diethylenglycolamin, polyglycolamines, preferably polyoyxethylen (6)-triethanolamin, polyoxyethylen-(9)-triethanolamine, o-(2-aminoethyl)-polyethylen 750, o,o-bis-(2-aminopropyl)-poyethylen 500 and o,o-bis-(3-aminopropyl) polyethylenglyco11500.
A preferred medium as per 2) comprises (a) 75 to 95 parts by weight of water and (b) 25 to 5 parts of one or more of the watersoluble solvents.
wherein the parts are by weight and all parts of (a) and (b) add up to 100.
Examples of further useful ink compositions including water and one or more organic solvents are found in the Patent Specifications US 4963189, US 4703113, US
and EP 425150A.
When the medium as per 2) includes an anhydrous (i.e. less than 1 % by weight of water) organic solvent, this solvent will have a boiling point of 30 to 200°C, more preferably of 40 - 150°C, particularly preferably of 50 - 125°C.
The organic solvent can be water-insoluble, water-soluble or mixtures of such solvents.
Preferred water-soluble organic solvents are all above-described water-soluble organic solvents and mixtures thereof.
Preferred water-insoluble solvents include inter alia aliphatic hydrocarbons;
esters, preferably ethyl acetate; chlorinated hydrocarbons, preferably CHZC12; and ethers, preferably diethyl ether; and mixtures thereof.
When the liquid medium as per 2) includes a water-insoluble organic solvent, it is preferable to add a polar solvent to increase the solubility of the dye in the liquid medium.
Examples of such polar solvents are C1_4-alcohols, preferably ethanol or propanol;
ketones, preferably methyl ethyl ketone.
The anhydrous organic solvent can consist of a single solvent or a mixture of 2 or more different solvents.
When it is a mixture of different solvents, a mixture including 2 to 5 different anhydrous solvents is preferred. This makes it possible to provide a medium as per 2) which permits good control of the drying properties and of the stability of the ink composition in storage.
Ink compositions including an anhydrous organic solvent or mixtures thereof are of particular interest when rapid drying times are required and especially when they are used for prints on hydrophobic and non-absorbing substrates, such as plastic, metal and glass.
Preferred low-melting media have a melting point of 60 to 125°C. Useful low-melting solids include long-chain fatty acids or alcohols, preferably those having a C18_2a-carbon chain, and sulphonamides.
The ink composition of the invention may further include as auxiliaries additional components which are normally used in inkjet inks, for example viscosity improvers, surface tension improvers, biocides, corrosion inhibitors, levelling agents, drying agents, humefactants, ink penetration additives, light stabilizers, UV
absorbers, optical brighteners, coagulation reducers, ionic or nonionic surfactants, conducting salts and pH
buffers.
These auxiliaries are preferably added in an amount of 0 - 5% by weight.
To prevent precipitation in the ink compositions of the invention, the dyes used have to be purified clean. This can be done with commonly known purifying methods.
When printing textile fibre materials, useful additives, as well as the solvents, include water-soluble nonionic cellulose ethers or alginates.
The preferred material is paper. The paper may be plain or treated.
Preference is given to ink compositions having a viscosity of 1 to 40 mPa's, especially 5 to 40 mPa's, preferably 10 to 40 mPa's. Ink compositions having a viscosity of 10 to 35 mPa.s are particularly preferred.
Preference is given to ink compositions having a surface tension of 15 - 73 mN/m, especially 20 - 65 mN/m, particularly preferably 30 - 50 mN/m.
Preference is given to ink compositions having a conductivity of 0.1 - 100 mS/cm, especially 0.5 - 70 mS/cm, particularly preferably 1.0 - 60 mS/cm.
The inks may further include buffer substances, for example borax, borate or citrate.
Examples are sodium borate, sodium tetraborate and sodium citrate.
They are used in particular in amounts of 0.1 to 3% by weight, preferably 0.1 to 1% by weight, based on the total weight of the ink, to set a pH of for example 5 to 9, especially 6 to 8. A citrate buffer is preferred in the case of alginatic inks.
The inks may further include customary additives, for example foam suppressants or especially fungal andlor bacterial growth inhibitors. These are customarily used in amounts of 0.01 to 1 % by weight, based on the total weight of the ink.
The printing inks and also the dye mixtures comprise at least the compound of formula CI).
The prints obtainable by the process of the invention have good general fastnesses, a good lightfastness and also sharp contours and a high colour strength. The inks provide prints of high optical density. Especially good brilliance together with a good light fastness is achieved with the dyes according to the invention.
The printing inks used are notable for good stability and good viscosity properties. The recording fluids of the invention have viscosity and surface tension values which are within the ranges suitable for the ink jet processes. The viscosity remains virtually unchanged even in the event of high shearing forces occurring during printing.
Recording fluids according to the invention in storage are not prone to the formation of precipitates that leads to fuzzy prints or nozzle cloggage.
A further aspect of the present invention is the use of the printing ink in trichromatic printing. Trichromatic printing is a very large application for all recording materials.
This form of printing is. normally carned out with a yellow, red and blue ink composition. Furthermore, the magenta dye mixtures of the invention may be used as an ink set in combination with black, yellow and/or cyan recording fluids.
This invention further provides recording materials, which have been printed with a composition according to the invention.
Moreover, the dye mixtures of the invention are useful as colorants in the electrophotographic toners and developers, for example one- and two-component powder toners, magnetic toners, liquid toners, polymerization toners and other specialty toners.
Typical toner binders are addition polymerization, polyaddition and polycondensation resins, such as styrene, styrene-acrylate, styrene-butadiene, acrylate, polyester, phenolic and epoxy resins, polysulfones, polyurethanes, individually or in combination, and also polyethylene and polypropylene, in or to which further ingredients, such as charge control agents, waxes or flow agents, may be present or added subsequently.
Dye mixtures according to the invention are further useful as colorants in powders and powder coating materials, especially triboelectrically or electrostatically sprayed powder coating materials, which are used to coat the surfaces of articles made for example of metal, wood, plastic, glass, ceramic, concrete, textile material, paper or rubber. Powder coating resins employed are typically epoxy resins, carboxyl-and hydroxyl-containing polyester resins, polyurethane resins and acrylic resins together with customary curing agents. Combinations of resins are also used. For instance, epoxy resins are frequently used in combination with carboxyl- and hydroxyl-containing polyester resins.
The dye mixtures of the invention are also useful as colorants for color filters, for additive as well as subtractive color generation (P. Gregory "Topics in Applied Chemistry: High Technology Applications of Organic Colorants" Plenum Press, New York 1991, page 15-25), and also as colorants in electronic inks for electronic newspapers.
The examples hereinbelow illustrate the invention. Temperatures are in degrees Celsius;
parts and percentages are by weight, unless otherwise stated.
Examples of ink compositions:
A preferred ink composition according to the invention comprises 0.5 - 35 parts of a of formula (I), 65 - 99.5 parts of water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point and optionally 0 - 5 parts of one or more additives.
A more preferred ink composition according to the invention comprises 1 - 20 parts of a of formula (I), 80-99 parts of water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point and optionally 0 - 5 parts of one or more additives.
A particularly preferred ink composition according to the invention comprises 1 - 5 parts of a of formula (I), 95 -99 parts of water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point and optionally 0 - 5 parts of one or more additives.
A more preferred ink composition according to the invention comprises 0.5 - 35 parts of a dye mixtures comprising at least one compound of formula (I) and at least C.I. Acid Red 52 or C.I. Acid Red 289, and 65 - 99.5 parts of water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point and optionally 0 - 5 parts of one or more additives.
A particularly preferred ink composition according to the invention comprises 1 - 20 parts of a dye mixtures comprising at least one compound of formula (I) and at least C.I. Acid Red 52 or C.I. Acid Red 289, and 80-99 parts of water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point and optionally 0 - 5 parts of one or more additives.
A further preferred ink composition according to the invention comprises 1 - 5 parts of a dye mixtures comprising at least one compound of formula (I) and at least C.I. Acid Red 52 or C.I. Acid Red 289, and 95 -99 parts of water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point and optionally 0 - 5 parts of one or more additives.
The sum total of all the parts of the abovementioned compositions according to the invention is 100 parts.
The above mentioned composition is preferably prepared by heating the medium to 40°C and then adding a dye mixtures comprising at least one compound of formula (I) and at least C.I. Acid Red 52 or C.I. Acid Red 289. The composition is then cooled down to room temperature.
This ink composition is preferably used for printing papers or papery substrates.
The following Examples further serve to illustrate the invention, without restricting the scope of protection to these Examples. In the Examples all parts and all percentages are by weight, and the temperatures given are in degrees Celsius, unless indicated to the contrary.
Example 1 a) Diazotizatio~ arzd coupling 46 g (0.2 mol) 1-acetylamino-4-aminobenzene-3-sulfonic acid are diazotized indirectly in 300 ml water. The reaction solution is added to a suspension of 47.8 g 2-amino-8-hydroxynaphthalin-6-sulfonic acid in 500 ml water at 5°C. The pH-value is adjusted to 2.5 - 4 by adding sodiumacetate-solution. After the termination of this reaction the compound of formula (IX) N-N ~ \ N~GH
\ / H
\ /~°H
is filtered off.
b) Sapozzificatiozz 252 g of the moist presscake of the compound (IX) obtained by a) is added to 600 ml water. 5 volume percent (v1-%) of solid sodium hydroxide is added and the reaction mixture is heated to 70°C for a period of 3 h.
After the termination of the reaction the product is salted out and filtered off. A
compound of formula (X) N=N ~ ~ NH2 OH
is obtained.
c) Condensation 138 g of the moist presscake consisting of the compound of formula (X) is added to 700 ml of water and the pH-value is adjusted to 4.5.
28 g 3-chloropropionic acid chloride is added slowly during a period of 15 min at a pH-value of 3.5 - 4.5 and a temperature of 5 - 12°C. After 2 hours a compound of formula (XI) N=N ~ ~ N_ v 'CI
H
OH (XI) is salted out and filtered off.
d) Substitution 170 g of the moist presscake consisting of the compound of formula (XI) is added to 700 ml of water and the pH-value is adjusted to 5. 50 g of sodium sulfite are added and the reaction solution is stirred for 2 h at a temperature of 70°C.
The dyestuff of formula (XII) N=N ~ ~ N' v -SO3H
H
/ off (xa) with a ~l,max of 514.7 nm (measured in 2 wt-%o sodium acetate in HZO at room temperature), is obtained by salting-out and a subsequent filtration.
Example 2 a) Diazotization and coupling 46 g 2-amino-5-nitro-benzotrifluoride are diazotized in 250 ml water at 5°C. The reaction solution is added to a suspension of 31.9 g 2-amino-8-hydroxynaphthalin-3,6 disulfonic acid in 300 ml water at 5°C. The pH-value is adjusted to 2.5 - 3 by adding sodiumacetate-solution. After the termination of this reaction the compound of formula (XIII) ~N ~ ~ N02 (XIII) is filtered off.
b) Reduction 143 g of the moist presscake of the compound (XIII) obtained by a) is added to 500 ml water. Sodium sulfide is added at a temperature of 20°C. After the termination of the reaction, the solution is acidified and the product is salted out and filtered off. A
compound of formula (XIV) N ~ \ NH2 (XIV) is obtained.
c) Condensation 143 g of the moist presscake consisting of the compound of formula (XIV) is added to 600 ml of water and the pH-value is adjusted to 4.5.
5 ml monochloroacetyl chloride is added slowly at a pH-value of 4.5 - 5. The pH-value . is controlled by the addition of sodium hydroxide. After 2 h a compound of formula (XV) N-N ~ ~ NCI
H
OH (XV) is salted out and filtered off.
d) Substitution 91 g of the moist presscake consisting of the compound of formula (XV) is added to 500 ml of water and the pH-value is adjusted to 5. 25 g of sodium sulfite are added and the reaction solution is stirred for 1 h at a temperature of 70°C.
The dyestuff of formula (XVI) N=N ~ ~ N~S03H
H
/ off (XVI) with a a,a,aX of 514.3 nm (measured in 2 wt-%o sodium acetate in HZO at room temperature), is obtained by salting-out and a subsequent filtration.
Example 3 a) Condensatiofz 13S g of the moist presscake consisting of the compound of formula (X) is added to 700 ml of water and the pH-value is adjusted to 4.5.
30 g CIS02CH2CH3 is added slowly during a period of 15 min at a pH-value of 4.5.
After 2 hours a compound of formula (XVII) N=N ~ ~ H-i l-CH2CH3 (VII) O
OH
with a a.max of 513.0 nm (measured in 2 wt-%o sodium acetate in HZO at room temperature), is salted out and filtered off.
TABLE 1 Examples 4 - 42 Analogously to Example 1 the following examples are obtained.
Rz _ O
N N-C- B ~S03H
H
Exp.R1 RZ Rs B Amax* [nm]
4 H H -S03H -CH2- 515.2 H H -CN -CH2- 512.1 6 H H -CN -CH2CH2- 516.1 7 H H -CF3 -CH2- 508.7 8 H H -CF3 -CH2CH2- 514.3 9 H H -CH3 -CH2- 498.0 H H -CH3 -CH2CH2- 501.2 11 H H -OCH3 -CH2- 504.7 12 H H -OCH3 -CHZCHa- 508.3 13 H -OCH3 H -CH2- 503.1 14 H -OCH3 H -CH2CH2- 505.2 H -COOH H -CH2- 514.0 16 H -COOH H -CHaCH2- 512.9 17 H -COOCH3 H -CH2- 510.1 18 H -COOCH3 H -CH2CH2- 511.3 19 -CH3 H -S03H -CH2- 526.8 -CH3 H -SO3H -CH2CHa- 528.3 21 -CH3 H -CN -CH2- 521.7 22 -CH3 H -CN -CH2CH2- 522.4 23 -CH3 H -CF3 -CH2- 504.1 24 -CH3 H -CF3 -CHzCH~- 504.4 -CH3 H -CH3 -CH2- 506.8 26 -CH3 H -CH3 -CH2CH2- 509.2 27 -CH3 H -OCH3 -CHa- 517.1 28 -CH3 H -OCH3 -CHZCH2- 516.3 29 -CH3 -OCH3 H -CHa- 510.7 -CH3 -OCH3 H -CH2CHa- S 12:3 31 -CH3 -COOH H -CHa- 520.9 32 -CH3 -COOH H -CHZCH2- 524.7 33 -CH3 -COOCH3 H -CH2- 519.6 34 -CH3 -COOCH3 H -CHZCHa- 521.5 Exp. R1 RZ R3 B ~m$x* (nml 35 -CH2CH2CN H -S03H -CH2- 514.0 36 -CH2CHZCN H -S03H -CHZCH2- 512.9 37 phenyl H -S03H -CHz- 536.1 38 phenyl H -S03H -CHZCHZ- 535.7 39 m-sulfo-phenyl H -S03H -CHZ 538.2 40 m-sulfo-phenyl H -S03H -CHzCH2- 539.4 41 xylyl H -S03H -CHZ- 526.1 42 xylyl H -S03H -CH2CHZ- 526.4 *~maX values are measured in 2 wt-%o sodium acetate in HZO at room temperature) TABLE 2 Examples 43 - 81 Analogously to Example 2 the following examples are obtained.
N N_o- B /S03H
H
Exp. R1 RZ R3 B Amax* (nm]
43 H H -S03H -CHa- 520.4 44 H H -S03H -CH2CH2- 521.0 45 H H -CN -CH2- 519.3 46 H H -CN -CH2CH2- 521.5 47 H H -CF3 -CHZCHZ- 513.8 48 H H -CH3 -CH2- 504.2 49 H H -CH3 -CH2CH2- 506.0 50 H H -OCH3 -CH2- 512.6 51 H H -OCH3 -CHZCHZ- 512.1 Exp.R1 R B Amax* (nm]
52 H -OCH3 H -CHa- 509.4 53 H -OCH3 H -CHZCHZ- 510.3 54 H -COOH H -CHZ- 524.7 55 H -COOH H -CH2CH2- 524.1 56 H -COOCH3 H -CHZ- 517.6 57 H -COOCH3 H -CH2CHz- 520.1 58 -CH3 H -S03H -CHZ- 534.3 59 -CH3 H -S03H -CHZCH2- 535.0 60 -CH3 H -CN -CHZ- 531.7 61 -CH3 H -CN -CH2CH2- 533.5 62 -CH3 H -CF3 -CH2- 514.7 63 -CH3 H -CF3 -CH2CH2- 520.4 64 -CH3 H -CH3 -CHZ- 517.2 65 -CH3 H -CH3 -CH2CH2- 518.7 66 -CH3 H -OCH3 -CH2- 526.1 67 -CH3 H -OCH3 -CHaCH2- 527.5 68 -CH3 -OCH3 H -CH2- 519.9 69 -CH3 -OCH3 H -CH2CHa- 522.4 70 -CH3 -COOH H -CH2- 533.1 71 -CH3 -COOH H -CH2CH2- 536.3 72 -CH3 -COOCH3 H -CHa- 531.6 73 -CH3 -COOCH3 H -CH2CH2- 531.1 74 -CH~CH2CN H -S03H -CHZ- 519.8 75 -CHaCHaCN H -S03H -CH2CH2- 521.4 76 phenyl H -SO3H -CH2- 540.6 77 phenyl H -S03H -CHZCH2- 541.3 78 m-sulfo-phenyl H -S03H -CHZ- 543.2 79 m-sulfo-phenyl H -S03H -CH2CH2- 544.1 80 xylyl H -S03H -CHZ- 534.1 g1 xylyl H -S03H -CH2CHa- 535.7 x~maX values are measured in 2 wt-%o sodium acetate in HZO at room temperature) TABLE 3 Examples 82 - 100 Analogously to Example 3 the following examples are obtained.
R~
H03S)m NH
N=N ~ ~ H-S02CH2CH3 Exp. m Rt R3 a,",aX*
[nm]
82 0 H -CH3 500.3 83 0 H -OCH3 502.1 84 0 H -CN 515.8 85 0 H -CF3 512.4 86 0 -CH3 -S03H 531.3 87 0 phenyl -SO3H 532.4 88 0 m-sulfo-phenyl -SO3H 534.1 89 0 xylyl -SO3H 522.1 90 1 H -S03H 520.5 91 1 H -CN 521.5 92 1 H -CH3 502.6 93 1 H -OCH3 508.8 94 1 H -CF3 514.2 95 1 -CH3 -SO3H 526.4 96 1 -CH3 -CN 527.0 97 1 -CH3 -CH3 520.9 98 1 -CH3 -OCH3 522.7 99 1 phenyl -S03H 541.7 100 1 xylyl -S03H 528.3 t~max-values are measured in 2 wt-%o sodium acetate in H20 at room temperature) TABLE 4 Examples 101 - 140 Analogously to Example 1 the following examples are obtained.
O
I I
N ~ ~ H-C- B-S02CH20H
Exp. m Rl R3 B 7v,max*
(nm]
101 0 H -S03H -CHz- 512.8 102 0 H -S03H -CHzCHz-513.3 103 0 H -CH3 -CHz- 507.6 104 0 H -CH3 -CHZCHz-506.4 105 0 H -OCH3 -CHz- 508.8 106 p H -OCH3 -CH2CHz-509.1 107 0 H -CF3 -CHz- 511.3 108 0 H -CF3 -CH2CHz-510.1 109 0 -CH3 -S03H -CHz- 524.2 110 0 -CH3 -S03H -CH2CHz-526.5 111 0 -CH3 -CH3 -CHz- 512.4 112 0 -CH3 -CH3 -CHZCHz-511.7 113 0 -CH3 -OCH3 -CHz- 514.3 114 0 -CH3 -OCH3 -CH2CHz-514.9 115 0 -CH3 -CF3 -CHz- 514.6 116 0 -CH3 -CF3 -CH2CHz-515.3 117 0 phenyl-S03H -CHz- 531.7 118 0 phenyl-S03H -CH2CHz-533.0 119 0 xylyl -S03H -CHz- 523.8 120 0 xylyl -S03H -CH2CHz-524.2 Exp. m Rl R3 B Amax* [nm]
121 1 H -SO3H -CH2- 518.9 122 1 H -S03H -CH2CH2-519.4 123 1 H -CH3 -CH2- 511.6 124 1 H -CH3 -CHZCH2-511.1 125 1 H -OCH3 -CHZ- 513.0 126 1 H -OCH3 -CH2CH2-513.4 127 1 H -CF3 -CH2- 515.2 128 1 H -CF3 -CH2CH2-517.3 129 1 -CH3 -S03H -CHZ- 531.6 130 1 -CH3 -S03H -CH2CH2-533.7 131 1 -CH3 -CH3 -CH2- 522.4 132 1 -CH3 -CH3 -CH2CH2-524.0 133 1 -CH3 -OCH3 -CH2- 526.3 134 1 -CH3 -OCH3 -CH2CH2-527.5 135 1 -CH3 -CF3 -CHa- 523.7 136 1 -CH3 -CF3 -CH2CH2-525.7 137 1 phenyl-S03H -CH2- 538.9 138 1 phenyl-S03H -CHZCH2-541.6 139 1 xylyl -S03H -CH2- 533.2 140 1 xylyl -SO3H -CH2CH2-535.1 *7~",~ n H20 values at are room measured temperature) in wt-%o sodium acetate i Dyestuff mixtures The following dyestuff mixtures are used to formulate a composition for printing recording materials as described above. Such a composition comprises 1) a dyestuff or a mixture of dyestuffs as defined above and 2) water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point, and 3) optionally further additives.
Example 141 (Dyestuff mixture 1) 90 wt-% of the Example 1 and wt-% of C.I. Acid Red 52.
This mixture is used to formulate a composition comprising 2.5 wt-% of Example 141 (dyestuff Mixture 1 ) wt-% of N-methyl-pyrrolidone 82.5 wt-% of water.
This mixture is further used to formulate a composition comprising 2.5 wt-% of Example 141 (dyestuff Mixture 1) wt-% of 1,2 propyleneglycol 77.5 wt-% of water.
TABLE 5 / Examples 142 - 145 Compound 1 is a compound according to formula (I) or a mixture thereof.
Compound 2 is a dystuff named by its Colour Index name.
Exp. Compound 1 wt-% of Compound 2 wt-% of Compound Compound 142 Example 1 80 C.I. Acid Red 20 143 Example 1 70 C.I. Acid Red 30 144 Example 47 80 C.I. Acid Red 20 145 Example 47 70 C.I. Acid Red 30 All Examples (1-140) as well as the compounds according to formula (I) and mixtures thereof are suitable as Compound 1.
All compounds C.I. Acid Red compounds as well as mixtures thereof, which are listed in the description are suitable as Compound 2 APPLICATION EXAMPLES
APPLICATION EXAMPLE A
An ink consisting of 2.5 parts of the mixture of Example 141 (dye mixture 1) in 97.5 parts of a mixture of water and 2-pyrrolidone where the ratio of water to N
methylpyrrolidone is 85:15 is introduced into an HP 880C DeskJet Printer and printed onto an A4 HP Premium Inkjet paper (HP and DeskJet are registered trademarks of Hewlett-Packard, Palo Alto, California, USA). The magenta prints thus obtained have good fastnesses.
This application example can be used in a similar manner for all the examples of the present application. Similarly, mixtures of individual dyes can be used. The prints thus obtained have good fastnesses.
APPLICATION EXAMPLE B
An ink consisting of 2.5 parts of the mixture of Example 141 (dye mixture 1 ) in 97.5 parts of a mixture of water, propylene glycol and isopropanole where the ratio of water propylene glycol and isopropylene is 90:5:5 is introduced into an HP 880C
DeskJet Printer and printed onto an A4 HP Premium Inkjet paper (HP and DeskJet are registered trademarks of Hewlett-Packard, Palo Alto, California, USA). The magenta prints thus obtained have good fastnesses.
This application example can be used in a similar manner for all the examples of the present application. Similarly, mixtures of individual dyes can be used. The prints thus obtained have good fastnesses.
APPLICATION EXAMPLE C
An ink consisting of 2.5 parts of Example 47 in 97.5 parts of a mixture of water and 2 pyrrolidone where the ratio of water to N-methylpyrrolidone is 85:15 is introduced into an HP 880C DeskJet Printer and printed onto an A4 HP Premium Inkjet paper (HP
and DeskJet are registered trademarks of Hewlett-Packard, Palo Alto, California, USA). The magenta prints thus obtained have good fastnesses especially lightfastness and the colors is brilliant.
This application example can be used in a similar manner for all the examples of the present application. Similarly, mixtures of individual dyes can be used. The prints thus obtained have good fastnesses and the color is brilliant.
APPLICATION EXAMPLE D
An ink consisting of 2.5 parts of Example 1 (Compound according to formula (XII)) in 97.5 parts of a mixture of water, propylene glycol and isopropanole where the ratio of water : propylene glycol and isopropylene is 90:5:5 is introduced into an HP
DeskJet Printer and printed onto an A4 HP Premium Inkjet paper (HP and DeskJet are registered trademarks of Hewlett-Packard, Palo Alto, California, USA). The magenta prints thus obtained have good fastnesses especially lightfastness and the color is brilliant.
This application example can be used in a similar manner for all the examples of the present application. Similarly, mixtures of individual dyes can be used. The prints thus obtained have good fastnesses and the colors is brilliant.
This mixture is further used to formulate a composition comprising 2.5 wt-% of Example 141 (dyestuff Mixture 1) wt-% of 1,2 propyleneglycol 77.5 wt-% of water.
TABLE 5 / Examples 142 - 145 Compound 1 is a compound according to formula (I) or a mixture thereof.
Compound 2 is a dystuff named by its Colour Index name.
Exp. Compound 1 wt-% of Compound 2 wt-% of Compound Compound 142 Example 1 80 C.I. Acid Red 20 143 Example 1 70 C.I. Acid Red 30 144 Example 47 80 C.I. Acid Red 20 145 Example 47 70 C.I. Acid Red 30 All Examples (1-140) as well as the compounds according to formula (I) and mixtures thereof are suitable as Compound 1.
All compounds C.I. Acid Red compounds as well as mixtures thereof, which are listed in the description are suitable as Compound 2 APPLICATION EXAMPLES
APPLICATION EXAMPLE A
An ink consisting of 2.5 parts of the mixture of Example 141 (dye mixture 1) in 97.5 parts of a mixture of water and 2-pyrrolidone where the ratio of water to N
methylpyrrolidone is 85:15 is introduced into an HP 880C DeskJet Printer and printed onto an A4 HP Premium Inkjet paper (HP and DeskJet are registered trademarks of Hewlett-Packard, Palo Alto, California, USA). The magenta prints thus obtained have good fastnesses.
This application example can be used in a similar manner for all the examples of the present application. Similarly, mixtures of individual dyes can be used. The prints thus obtained have good fastnesses.
APPLICATION EXAMPLE B
An ink consisting of 2.5 parts of the mixture of Example 141 (dye mixture 1 ) in 97.5 parts of a mixture of water, propylene glycol and isopropanole where the ratio of water propylene glycol and isopropylene is 90:5:5 is introduced into an HP 880C
DeskJet Printer and printed onto an A4 HP Premium Inkjet paper (HP and DeskJet are registered trademarks of Hewlett-Packard, Palo Alto, California, USA). The magenta prints thus obtained have good fastnesses.
This application example can be used in a similar manner for all the examples of the present application. Similarly, mixtures of individual dyes can be used. The prints thus obtained have good fastnesses.
APPLICATION EXAMPLE C
An ink consisting of 2.5 parts of Example 47 in 97.5 parts of a mixture of water and 2 pyrrolidone where the ratio of water to N-methylpyrrolidone is 85:15 is introduced into an HP 880C DeskJet Printer and printed onto an A4 HP Premium Inkjet paper (HP
and DeskJet are registered trademarks of Hewlett-Packard, Palo Alto, California, USA). The magenta prints thus obtained have good fastnesses especially lightfastness and the colors is brilliant.
This application example can be used in a similar manner for all the examples of the present application. Similarly, mixtures of individual dyes can be used. The prints thus obtained have good fastnesses and the color is brilliant.
APPLICATION EXAMPLE D
An ink consisting of 2.5 parts of Example 1 (Compound according to formula (XII)) in 97.5 parts of a mixture of water, propylene glycol and isopropanole where the ratio of water : propylene glycol and isopropylene is 90:5:5 is introduced into an HP
DeskJet Printer and printed onto an A4 HP Premium Inkjet paper (HP and DeskJet are registered trademarks of Hewlett-Packard, Palo Alto, California, USA). The magenta prints thus obtained have good fastnesses especially lightfastness and the color is brilliant.
This application example can be used in a similar manner for all the examples of the present application. Similarly, mixtures of individual dyes can be used. The prints thus obtained have good fastnesses and the colors is brilliant.
Claims (11)
1. A dyestuff of formula (I) wherein R1 is H; C1-4alkyl; substituted C1-4alkyl; phenyl or substituted phenyl, R2 is H; C1-4alkyl; substituted C1-4alkyl; C1-4alkoxy; -COOH; -COOCH3;
-CF3; -SO3H or -CN, R3 is H; C1-4alkyl; substituted C1-4alkyl; C1-4alkoxy; -SO3H; -CN;
acetylamino; -OH; -CF3 or -SO2R5, wherein R5 is unsubstituted C1-4alkyl or substituted C1-4alkyl, R4 is H; unsubstituted C1-4alkyl or substituted C1-4alkyl, A is a radical of formula wherein B is unsubstituted phenylene; substituted phenylene or C1-4alkylene, X is -SO3H or -SO2R5 wherein R5 has the same meanings as defined above, or A is a radical of formula -SO2R6, wherein R6 is unsubstituted C1-4alkyl; substituted C1-4alkyl; unsubstituted phenyl or substituted phenyl, m is 0 or 1, as free acid or in salt form, as well as mixtures thereof.
-CF3; -SO3H or -CN, R3 is H; C1-4alkyl; substituted C1-4alkyl; C1-4alkoxy; -SO3H; -CN;
acetylamino; -OH; -CF3 or -SO2R5, wherein R5 is unsubstituted C1-4alkyl or substituted C1-4alkyl, R4 is H; unsubstituted C1-4alkyl or substituted C1-4alkyl, A is a radical of formula wherein B is unsubstituted phenylene; substituted phenylene or C1-4alkylene, X is -SO3H or -SO2R5 wherein R5 has the same meanings as defined above, or A is a radical of formula -SO2R6, wherein R6 is unsubstituted C1-4alkyl; substituted C1-4alkyl; unsubstituted phenyl or substituted phenyl, m is 0 or 1, as free acid or in salt form, as well as mixtures thereof.
2. Dyestuff of formula (I) according to claim 1 characterized in that R1 is C1-2alkyl; C1-2alkyl which is substituted by -CN, halogen, or -COOH;
phenyl or phenyl which is substituted by at least one substituent of the group consisting of C1-2alkyl, C1-2alkoxy, halogen, -SO3H, -COOH, -OH
or -CN, R2 is H; C1-2alkyl; substituted C1-2alkyl; C1-2alkoxy; -COOH; -COOCH3;
-SO3H or -CN, R3 is H; C1-2alkyl; substituted C1-2alkyl; C1-2alkoxy; -SO3H; -CN;
acetylamine; -OH or -CF3, R4 is H or C1-2alkyl, X is -SO3H or -SO2R5, wherein R5 is C1-2alkyl; substituted C1-2alkyl; phenyl or substituted phenyl, B is unsubstituted phenylene or C1-4alkylene, R6 is C1-2alkyl; unsubstituted phenyl or phenyl which is substituted by C1-2alkyl or C1-2alkoxy, and m is 0 or 1.
phenyl or phenyl which is substituted by at least one substituent of the group consisting of C1-2alkyl, C1-2alkoxy, halogen, -SO3H, -COOH, -OH
or -CN, R2 is H; C1-2alkyl; substituted C1-2alkyl; C1-2alkoxy; -COOH; -COOCH3;
-SO3H or -CN, R3 is H; C1-2alkyl; substituted C1-2alkyl; C1-2alkoxy; -SO3H; -CN;
acetylamine; -OH or -CF3, R4 is H or C1-2alkyl, X is -SO3H or -SO2R5, wherein R5 is C1-2alkyl; substituted C1-2alkyl; phenyl or substituted phenyl, B is unsubstituted phenylene or C1-4alkylene, R6 is C1-2alkyl; unsubstituted phenyl or phenyl which is substituted by C1-2alkyl or C1-2alkoxy, and m is 0 or 1.
3. Dyestuff according to claim 2 characterized in that it has the formula (Ia) wherein R1 signifies H; -CH3; -CH2CH3; substituted C2-alkyl; phenyl;
monosubstituted phenyl or disubstituted phenyl, R2 signifies H; -OCH3; -COOH or -COOCH3, R3 signifies H, -SO3H; -CN; -CF3; -CH3; -OCH3 or acetylamino, m signifies 0 or 1, and n signifies 1, 2 or 3.
monosubstituted phenyl or disubstituted phenyl, R2 signifies H; -OCH3; -COOH or -COOCH3, R3 signifies H, -SO3H; -CN; -CF3; -CH3; -OCH3 or acetylamino, m signifies 0 or 1, and n signifies 1, 2 or 3.
4. Dyestuff according to claim 2 characterized in that it has the formula (Ib) wherein R1 signifies H; -CH3; -CH2CH3; substituted C2-alkyl; phenyl;
monosubstituted phenyl or disubstituted phenyl, R2 signifies H; -OCH3; -COOH or -COOCH3, R3 signifies H; -SO3H; CN; -CF3; -CH3 or -OCH3, n signifies 1, 2 or 3 m signifies 0 or 1.
monosubstituted phenyl or disubstituted phenyl, R2 signifies H; -OCH3; -COOH or -COOCH3, R3 signifies H; -SO3H; CN; -CF3; -CH3 or -OCH3, n signifies 1, 2 or 3 m signifies 0 or 1.
5. Dyestuff according to claim 2 characterized in that it has the formula (Ic) wherein R1 signifies H; -CH3; -CH2CH3; substituted C2-alkyl; phenyl;
monosubstituted phenyl or disubstituted phenyl, R3 signifies H; -SO3H; -CN; -CF3; -CH3 or -OCH3, R6 signifies unsubstituted C1-4alkyl; unsubstituted phenyl; monosubstituted phenyl or disubstituted phenyl, m signifies 0 or 1.
monosubstituted phenyl or disubstituted phenyl, R3 signifies H; -SO3H; -CN; -CF3; -CH3 or -OCH3, R6 signifies unsubstituted C1-4alkyl; unsubstituted phenyl; monosubstituted phenyl or disubstituted phenyl, m signifies 0 or 1.
6. A process for the preparation of a compound according to the formula (I) characterized in that in a first step a compound of formula (VII) wherein all substituents have the meanings as defined above are reacted with a compound of formula (VIIIa) or (VIIIb) n H2O/NaOH and in a second step the product of formula (IX) obtained by the reaction with the educt of formula (VIIIa) is reacted with Na2SO3 or NaSO2R5 in an aqueous media to obtain a compound according to formula (I') wherein all substituents have the same meanings as defined above.
7. An Ink Jet Ink comprising at least one compound according to claim 1 or 3 or 4 or 5.
8. An Ink Jet Ink according to Claims 7 characterized in that the total content of salts is less than 0.5% by weight, based on the total weight of the dyes.
9. Use of compounds according to claim 1 or 3 or 4 or 5 for printing recording material and/or in an inkjet printing process for printing recording materials.
10. Use according to claim 9 characterized in that the recording material is paper or a papery substrate.
11. A recording material printed or dyed with a compound according to claim 1 or 3 or 4 or 5
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0130309.8 | 2001-12-19 | ||
| GB0130309A GB0130309D0 (en) | 2001-12-19 | 2001-12-19 | Organic compounds |
| GB0225997.6 | 2002-11-07 | ||
| GB0225997A GB0225997D0 (en) | 2002-11-07 | 2002-11-07 | Use of dyestuff for printing recording materials |
| PCT/IB2002/005473 WO2003052006A1 (en) | 2001-12-19 | 2002-12-18 | Acidic mono azo dyestuffs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2461750A1 true CA2461750A1 (en) | 2003-06-26 |
Family
ID=26246883
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002461751A Abandoned CA2461751A1 (en) | 2001-12-19 | 2002-12-18 | Use of a dyestuff for ink jet printing recording materials |
| CA002461750A Abandoned CA2461750A1 (en) | 2001-12-19 | 2002-12-18 | Acidic mono azo dyestuffs |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002461751A Abandoned CA2461751A1 (en) | 2001-12-19 | 2002-12-18 | Use of a dyestuff for ink jet printing recording materials |
Country Status (16)
| Country | Link |
|---|---|
| US (2) | US7097702B2 (en) |
| EP (2) | EP1463781B1 (en) |
| JP (2) | JP2005513189A (en) |
| KR (2) | KR20040076258A (en) |
| CN (2) | CN1283731C (en) |
| AT (1) | ATE393802T1 (en) |
| AU (2) | AU2002351148A1 (en) |
| BR (2) | BR0215015A (en) |
| CA (2) | CA2461751A1 (en) |
| DE (1) | DE60226346T2 (en) |
| ES (1) | ES2302853T3 (en) |
| HK (1) | HK1076480A1 (en) |
| MX (2) | MXPA04003489A (en) |
| PT (1) | PT1463781E (en) |
| TW (2) | TWI278493B (en) |
| WO (2) | WO2003052006A1 (en) |
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|---|---|---|---|---|
| TWI278493B (en) * | 2001-12-19 | 2007-04-11 | Clariant Finance Bvi Ltd | Use of a dyestuff for printing recording materials |
| JP2005352363A (en) * | 2004-06-14 | 2005-12-22 | Ricoh Co Ltd | Liquid developer, liquid developer storage vessel, picture formation method and picture formation system |
| MX2007005507A (en) * | 2004-11-12 | 2008-03-13 | Neurochem Int Ltd | Methods and fluorinated compositions for treating amyloid-related diseases. |
| GB0505879D0 (en) * | 2005-03-22 | 2005-04-27 | Ten Cate Advanced Textiles Bv | Composition for continuous inkjet finishing of a textile article |
| CN100387656C (en) * | 2005-11-01 | 2008-05-14 | 吴江市罗林染化有限公司 | Preparation technology of direct mixed spinning purple dyestuff |
| US8137416B2 (en) * | 2006-04-07 | 2012-03-20 | Clariant Finance (Bvi) Limited | Acid dyes |
| US7387665B2 (en) * | 2006-04-12 | 2008-06-17 | E.I. Du Pont De Nemours And Company | Inkjet ink and ink set |
| PT2035506E (en) * | 2006-06-25 | 2011-01-03 | Clariant Finance Bvi Ltd | Acid dyes |
| DE602007005967D1 (en) * | 2006-09-09 | 2010-06-02 | Fujifilm Imaging Colorants Ltd | PROCESS, CONNECTION, INK AND USE |
| US8496743B2 (en) * | 2010-03-18 | 2013-07-30 | Seiko Epson Corporation | Ink composition |
| JP2013091723A (en) * | 2011-10-26 | 2013-05-16 | Sumitomo Chemical Co Ltd | Compound |
| EP3342927B1 (en) | 2016-12-28 | 2019-08-14 | Seiko Epson Corporation | Ink jet ink composition for textile printing, ink set, and recording method |
| US10894896B2 (en) | 2016-12-28 | 2021-01-19 | Seiko Epson Corporation | Ink jet ink composition for textile printing, ink set, and recording method |
| CN106893355A (en) * | 2017-01-10 | 2017-06-27 | 泉州市希姆色彩研究院有限公司 | A kind of dispersed black dye of water fastness high and preparation method thereof |
| JP2019060051A (en) | 2017-09-27 | 2019-04-18 | セイコーエプソン株式会社 | Recording method |
| JP7017054B2 (en) * | 2017-09-29 | 2022-02-08 | セイコーエプソン株式会社 | Inkjet printing ink, inkjet printing ink set and printing method |
| JP2019137793A (en) | 2018-02-13 | 2019-08-22 | セイコーエプソン株式会社 | Printing inkjet ink composition set and recording method |
| CN109824607B (en) * | 2019-04-02 | 2022-12-09 | 上海应用技术大学 | Preparation method of diazo component of disazo compound |
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| TWI278493B (en) * | 2001-12-19 | 2007-04-11 | Clariant Finance Bvi Ltd | Use of a dyestuff for printing recording materials |
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-
2002
- 2002-12-18 TW TW091136491A patent/TWI278493B/en not_active IP Right Cessation
- 2002-12-18 KR KR10-2004-7009624A patent/KR20040076258A/en not_active Application Discontinuation
- 2002-12-18 CN CNB02825564XA patent/CN1283731C/en not_active Expired - Fee Related
- 2002-12-18 WO PCT/IB2002/005473 patent/WO2003052006A1/en active Application Filing
- 2002-12-18 CA CA002461751A patent/CA2461751A1/en not_active Abandoned
- 2002-12-18 BR BR0215015-8A patent/BR0215015A/en not_active IP Right Cessation
- 2002-12-18 US US10/499,168 patent/US7097702B2/en not_active Expired - Fee Related
- 2002-12-18 JP JP2003552877A patent/JP2005513189A/en not_active Withdrawn
- 2002-12-18 AT AT02781678T patent/ATE393802T1/en not_active IP Right Cessation
- 2002-12-18 MX MXPA04003489A patent/MXPA04003489A/en active IP Right Grant
- 2002-12-18 BR BR0215076-0A patent/BR0215076A/en not_active IP Right Cessation
- 2002-12-18 EP EP02781678A patent/EP1463781B1/en not_active Expired - Lifetime
- 2002-12-18 PT PT02781678T patent/PT1463781E/en unknown
- 2002-12-18 AU AU2002351148A patent/AU2002351148A1/en not_active Abandoned
- 2002-12-18 CA CA002461750A patent/CA2461750A1/en not_active Abandoned
- 2002-12-18 MX MXPA04003488A patent/MXPA04003488A/en active IP Right Grant
- 2002-12-18 AU AU2002348731A patent/AU2002348731A1/en not_active Abandoned
- 2002-12-18 WO PCT/IB2002/005474 patent/WO2003052007A1/en active IP Right Grant
- 2002-12-18 ES ES02781678T patent/ES2302853T3/en not_active Expired - Lifetime
- 2002-12-18 CN CNB028251539A patent/CN100340619C/en not_active Expired - Fee Related
- 2002-12-18 TW TW091136493A patent/TW200301288A/en unknown
- 2002-12-18 DE DE60226346T patent/DE60226346T2/en not_active Expired - Fee Related
- 2002-12-18 US US10/498,856 patent/US7153332B2/en not_active Expired - Fee Related
- 2002-12-18 JP JP2003552876A patent/JP2005513188A/en not_active Withdrawn
- 2002-12-18 EP EP02785861A patent/EP1495079A1/en not_active Withdrawn
- 2002-12-18 KR KR10-2004-7009525A patent/KR20040075888A/en not_active Application Discontinuation
-
2005
- 2005-09-27 HK HK05108511A patent/HK1076480A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1463781A1 (en) | 2004-10-06 |
| PT1463781E (en) | 2008-07-03 |
| AU2002351148A1 (en) | 2003-06-30 |
| MXPA04003488A (en) | 2004-07-30 |
| KR20040075888A (en) | 2004-08-30 |
| ATE393802T1 (en) | 2008-05-15 |
| KR20040076258A (en) | 2004-08-31 |
| TW200301288A (en) | 2003-07-01 |
| WO2003052006A1 (en) | 2003-06-26 |
| TW200301771A (en) | 2003-07-16 |
| EP1495079A1 (en) | 2005-01-12 |
| CN1606603A (en) | 2005-04-13 |
| EP1463781B1 (en) | 2008-04-30 |
| US20050120495A1 (en) | 2005-06-09 |
| CN1604944A (en) | 2005-04-06 |
| CN1283731C (en) | 2006-11-08 |
| US20050172856A1 (en) | 2005-08-11 |
| CN100340619C (en) | 2007-10-03 |
| BR0215076A (en) | 2004-11-09 |
| ES2302853T3 (en) | 2008-08-01 |
| US7097702B2 (en) | 2006-08-29 |
| TWI278493B (en) | 2007-04-11 |
| AU2002348731A1 (en) | 2003-06-30 |
| BR0215015A (en) | 2004-11-09 |
| JP2005513189A (en) | 2005-05-12 |
| JP2005513188A (en) | 2005-05-12 |
| CA2461751A1 (en) | 2003-06-26 |
| DE60226346D1 (en) | 2008-06-12 |
| MXPA04003489A (en) | 2004-07-30 |
| HK1076480A1 (en) | 2006-01-20 |
| US7153332B2 (en) | 2006-12-26 |
| WO2003052007A1 (en) | 2003-06-26 |
| DE60226346T2 (en) | 2008-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |