CN105040156B - Blended fiber and preparation method thereof and the fabric containing the blended fiber - Google Patents
Blended fiber and preparation method thereof and the fabric containing the blended fiber Download PDFInfo
- Publication number
- CN105040156B CN105040156B CN201410790752.2A CN201410790752A CN105040156B CN 105040156 B CN105040156 B CN 105040156B CN 201410790752 A CN201410790752 A CN 201410790752A CN 105040156 B CN105040156 B CN 105040156B
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- Prior art keywords
- polyamide
- blended fiber
- polyester
- fiber
- blended
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- 239000000835 fiber Substances 0.000 title claims abstract description 189
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000004744 fabric Substances 0.000 title claims abstract description 15
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- 229920002647 polyamide Polymers 0.000 claims abstract description 140
- 229920000728 polyester Polymers 0.000 claims abstract description 123
- 239000002253 acid Substances 0.000 claims abstract description 45
- 238000002156 mixing Methods 0.000 claims abstract description 40
- 239000002994 raw material Substances 0.000 claims abstract description 25
- 238000004043 dyeing Methods 0.000 claims abstract description 16
- VHRGRCVQAFMJIZ-UHFFFAOYSA-N cadaverine Chemical class NCCCCCN VHRGRCVQAFMJIZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims description 69
- -1 polyethylene terephthalate Polymers 0.000 claims description 38
- 238000009987 spinning Methods 0.000 claims description 38
- 239000000654 additive Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 230000000996 additive effect Effects 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 16
- 239000003963 antioxidant agent Substances 0.000 claims description 16
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- 239000000975 dye Substances 0.000 claims description 13
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims description 13
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- WQPDQJCBHQPNCZ-UHFFFAOYSA-N cyclohexa-2,4-dien-1-one Chemical compound O=C1CC=CC=C1 WQPDQJCBHQPNCZ-UHFFFAOYSA-N 0.000 claims 1
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- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 19
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- KJOMYNHMBRNCNY-UHFFFAOYSA-N pentane-1,1-diamine Chemical compound CCCCC(N)N KJOMYNHMBRNCNY-UHFFFAOYSA-N 0.000 description 12
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- 239000004472 Lysine Substances 0.000 description 5
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 5
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- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 4
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- 108010048581 Lysine decarboxylase Proteins 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
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- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 3
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- 239000004408 titanium dioxide Substances 0.000 description 3
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- SJEYSFABYSGQBG-UHFFFAOYSA-M Patent blue Chemical compound [Na+].C1=CC(N(CC)CC)=CC=C1C(C=1C(=CC(=CC=1)S([O-])(=O)=O)S([O-])(=O)=O)=C1C=CC(=[N+](CC)CC)C=C1 SJEYSFABYSGQBG-UHFFFAOYSA-M 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
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- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
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- 239000006224 matting agent Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229960000969 phenyl salicylate Drugs 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000009971 piece dyeing Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920013636 polyphenyl ether polymer Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 1
- 229960001860 salicylate Drugs 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 150000003902 salicylic acid esters Chemical class 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000001587 sorbitan monostearate Substances 0.000 description 1
- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- 239000000326 ultraviolet stabilizing agent Substances 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
Abstract
The present invention provides a kind of blended fiber and preparation method thereof and the fabric containing the blended fiber.The raw material of the blended fiber includes polyamide and polyester, and the content that the polyamide includes polyamide A, the polyamide A is 1~40 parts by weight；The content of the polyester is 60~99 parts by weight, wherein, the raw material of the polyamide A is 1,5 pentanediamines and binary acid.Technique used in the blended fiber of the present invention is simple, production efficiency is high, and simple transformation can be directly realized by production on current polyester direct spinning equipment.The good indices of gained fibre property can meet follow-up woven requirement, and the fiber production operation is simple, and cost is relatively low, suitably carries out industrialized production., can be with cotton or hair with arbitrary proportion blending, using the woven fabric of this mixed yarn using the cotton or wool type fiber prepared by the blended fiber of the present invention, a bath can be carried out with dye, and dye no color differnece, dye-uptake is high, it can contaminate deeply, this greatly simplifies the dyeing process of fabric, effectively reduces cost.
Description
Technical field
The present invention relates to a kind of fiber, more particularly to a kind of polyamide-polyester blend fiber and preparation method thereof and contain
There is the fabric of the blended fiber.
Background technology
Polyester fiber is widely used due to its good performance, but because it lacks hydrophilic radical, in industry
It is poor with rubber affinity that silk aspect is shown as, and multiple dipping process need to be carried out, in terms of civilian silk, it is necessary to is existed using disperse dyes
Dyed under high temperature, high pressure, because disperse dyes solubility is low, while needing to add azo co-catalyst, cause serious ring
Pollute in border.In recent years, China's chemical fibre yield is developed rapidly, and wherein terylene yield ranks first in the world, and production capacity is still sent out in high speed
Exhibition.Current polyester fiber be more and more used for the natural protein fibre blending such as wool, for preparing worsted fabric.So
And, the natural protein fibre such as wool, silk, use be it is cheap, chromatogram is complete, acid dyes bright in colour dye
Color.If with blending such as conventional polyester fiber and wool, silks, it is impossible to carry out with bath piece dyeing.In order to solve this problem, both at home and abroad
Many scholar experts have made intensive studies.
Generally, the water imbibition and dye-uptake of polyester can be improved by adding polyamide and polyester and being blended, however,
Because polyamide and polyester natively have dynamics and incompatibility thermodynamically, therefore need to add phase in Blending Processes
Holding agent improves the Miscibility of polyamide and polyester, to obtain the compatible system in the absence of separating interface, and many institutes
Known, the mechanical property of compatilizer in itself can produce limitation to the mechanical property of co-mixing system, so as to have influence on blended fiber
Mechanical property.
Patent CN101942708 B disclose a kind of polyester-polyamide copolymer, and its dye-uptake under acid dyes is more than
80%, but added polyamide is caprolactam performed polymer, it is well known that can have about 10% during caprolactam polymerization
Monomer, needs first to wash removals, otherwise can not carry out spinning before carrying out spinning, simultaneously because oneself interior acyl of caprolactam structures shape
Amino End Group accounts for the ratio of total end group not over 50% in amine prepolymer, and this is also detrimental to copolymerization generation.
Patent CN103668553 A disclose a kind of polyamide-solubility polyester-polyvinylpyrrolidone blended fiber,
Then by alkali soluble handle absorbed water, moisture absorption, rapid-curing cutback material.Its raw materials used price is high, and alkali soluble process has pollution and wave
Take problem.
Patent CN1632195A discloses a kind of polyester fiber of acid dyeable, by into polyester add polyethylene-
The compound additive of poly-methyl acrylate and polyamide composition, is obtained, this method need to be by polyester, polyamide by co-blended spinning
Obtain carrying out spinning after pellet again with granulation after polyethylene-poly-methyl acrylate mixing, complex steps, simultaneously because poly- second
Alkene-poly-methyl acrylate fusing point is much lower compared with polyester, polyamide fusing point, certainly will influence the hot property of polyester fiber.
The content of the invention
Although it is an object of the invention to overcome prior art not enough there is provided one kind not repelling addition compatilizer, not
Polyamide-polyester blend fiber of resin alloy spinning can be also carried out under conditions of addition compatilizer, without compatilizer not only
Influence of the additive to fibrous mechanical property can be reduced, the shortcoming of polyester hydrophily difference is also effectively improved with low cost, it is real
High dye-uptake can be reached while having showed the acid-dyeable of polyester.
On the one hand, the present invention provides a kind of blended fiber, and the raw material of the blended fiber includes polyamide and polyester, described
The content that polyamide includes polyamide A, the polyamide A is 1~40 parts by weight；The content of the polyester is 60~99 weight
Part, wherein, the raw material of the polyamide A is 1,5- pentanediamines and binary acid.
In an embodiment of the blended fiber of the present invention, the content of the polyamide A is 10~30 parts by weight, institute
The content for stating polyester is 60~90 parts by weight.
In another embodiment of the blended fiber of the present invention, the polyamide A is 1,5- pentanediamines and binary acid
A kind of homopolymer or the mixture of a variety of homopolymers, the 1,5- pentanediamines being polymerized are polymerized with least two kinds binary acid
The mixture or any foregoing combination of copolymer or a variety of copolymers.
The present invention blended fiber another embodiment in, the polyamide A be selected from by nylon 56, nylon 510,
The group constituted with nylon 512, preferably nylon 56.
In another embodiment of the blended fiber of the present invention, the viscosity number of the polyamide is 70~180mL/g, end
Amino content is 20~150mol/ton (i.e. mol/ tons).
In another embodiment of the blended fiber of the present invention, the polyester is selected from by polyethylene terephthalate
One or more in the group that ester, PTT and polybutylene terephthalate (PBT) are constituted.
In another embodiment of the blended fiber of the present invention, the inherent viscosity of the polyester is 0.7~0.9dL/
g。
In another embodiment of the blended fiber of the present invention, the fiber number of the blended fiber is 0.5~7dtex,
Fracture strength is 1.0~5.5cN/dtex, and elongation at break is 15~370%.
In another embodiment of the blended fiber of the present invention, the fiber number of the blended fiber for 1.0~
5.0dtex, fracture strength is 1.5~5.0cN/dtex.
In another embodiment of the blended fiber of the present invention, blended fiber acid dyeing at ambient pressure
Dye-uptake be more than 62%, preferably more than 82%, more preferably more than 86%.
In another embodiment of the blended fiber of the present invention, the saturated water absorption of the blended fiber is more than
0.56%, preferably greater than 2.70%, more preferably greater than 3.84%.
In another embodiment of the blended fiber of the present invention, the polyamide also includes polyamide B, the polyamides
Amine B raw material is that caprolactam, or hexamethylene diamine and binary acid, and the polyamide B weight are not higher than the weight of the polyamide A
Amount.
In another embodiment of the blended fiber of the present invention, the polyamide B is polyamide 6, polyamide 66, gathered
One or more in acid amides 610, polyamide 612, preferably polyamide 6.
In another embodiment of the blended fiber of the present invention, the polyamide is polyamide A.
In another embodiment of the blended fiber of the present invention, the raw material of the blended fiber also includes additive,
The additive is selected from delustering agent, age resister, antioxidant, heat stabilizer, fire retardant, pigment and dyestuff, conductive filler or anti-
One kind or its combination in electrostatic filler, the content of the additive is 0~20 parts by weight.
In another embodiment of the blended fiber of the present invention, the blended fiber is that polyamide polyester blending is nascent
Fiber, polyamide polyester blended fiber long filament, polyamide polyester blending POY fibers, polyamide polyester blending plus elater, polyamide
Polyester blend FDY fiber or one kind in polyamide polyester blend staple dimension or its combination.
On the other hand, the present invention also provides the preparation method of above-mentioned blended fiber, including：
The polyester and the polyamide are imported in blender, blend melt is obtained after being mixed；And
Above-mentioned blend melt is imported into spinning-drawing machine and carries out spinning,
The temperature of wherein described mixing is 220~320 DEG C, and pressure is 20~101325Pa；It is preferred that, the temperature of the mixing
Spend for 260~290 DEG C, pressure is 20~40000Pa.
The present invention preparation method an embodiment in, it is described mixing include by after polyamide and polyester melt
Mixed in container, polyamide and polyester either are directly added into heating melting after container stirs mixing or in production of polyester mistake
It will be directly injected into polyester and mixed after molten polyamide in journey.
In an embodiment of the preparation method of the present invention, it is additionally included in blender and adds additive, it is described to add
Plus agent is selected from delustering agent, age resister, antioxidant, heat stabilizer, fire retardant, pigment and dyestuff, conductive filler or antistatic and filled out
One kind or its combination in material, the content of the additive is 0~20 parts by weight.
Another further aspect, the present invention also provides a kind of fabric, and the fabric contains above-mentioned blended fiber.
Polyamide-technique used in polyester blend fiber of the invention is simple, production efficiency is high, in current polyester direct spinning equipment
Upper simple transformation can be directly realized by production.Gained fibre property is good, fibrous fracture intensity ＞ 1.0cN/dtex, extension at break
Rate ＞ 5%, indices can meet follow-up woven requirement, and the fiber production operation is simple, and cost is relatively low, suitable to carry out
Industrialized production., can be mixed with arbitrary proportion with cotton or hair using the cotton or wool type fiber prepared by the blended fiber of the present invention
Spin, using the woven fabric of this mixed yarn, a bath can be carried out with dye, and dye no color differnece, dye-uptake is high, can contaminate deeply, significantly
The dyeing process of fabric is simplified, cost is effectively reduced.
Embodiment
Technical scheme is described further below according to specific embodiment.Protection scope of the present invention is not limited
In following examples, these examples are enumerated merely for exemplary purpose without limiting the present invention in any way.
The blended fiber of the present invention includes following raw material：Polyamide and polyester, wherein, the polyamide includes polyamide
A, the polyamide A raw material are 1,5- pentanediamines and binary acid.
When the polyamide A and polyester blend of the present invention, polyamide A parts by weight are 1~40 part, preferably 10~30
Part, the parts by weight of polyester are 60~99 parts, preferably 70~90 parts.
The viscosity number of the polyamide of the present invention is 70~180mL/g, and terminal amino group content is 20~150mol/ton.The spy of polyester
Property viscosity be 0.7~0.9dL/g.Terminal amino group content is amino molal quantity contained in each ton of nylon.
The polyamide A of present invention raw material is by 1,5- pentanediamines and two for 1,5- pentanediamines and binary acid, i.e. polyamide A
Obtained by first acid polymerisation.
To the sources of 1,5- pentanediamines, there is no particular limitation in the present invention.1,5- pentanediamines can be using lysine as original
Material, carries out what decarboxylic reaction was prepared.Decarboxylic reaction can be bioanalysis, under lysine decarboxylase effect, by lysine
Prepared by decarboxylic reaction；Decarboxylic reaction can also be chemical method, must the amino acid of mountain just et al. decarboxylic reaction (fourth edition), medicine
Magazine (Vol.85 (6), P531-533,1965) is disclosed to be passed through with lysine in the cyclohexanol of the peroxide containing tetrahydronaphthalene
Boil obtained pentanediamine.Lysine decarboxylase can also be raised in the bacterial strain that can generate lysine by gene technology
Expression, or recombination expression lysine decarboxylase, can make the lysine of generation synchronously be converted into pentanediamine during the fermentation, directly
Sending and receiving ferment obtains pentanediamine.
In the present invention, polyamide A can be that pentanediamine polymerize obtained homopolymer with binary acid, can be a kind of homopolymerization
The mixture of thing or a variety of homopolymers.
In the present invention, polyamide A polymerization methodses are not limited, and can be obtained by pentanediamine with binary acid direct polycondensation
To or pentanediamine and binary acid obtain into polymerizeing after salt, or pentanediamine and solid polycondensation again after the first pre-polymerization of binary acid
Conjunction is obtained.
Above-mentioned binary acid can be aliphatic dibasic acid and its derivative in the present invention, and aliphatic dibasic acid can be short
On chain binary acid, i.e. carbochain carbon number be less than or equal to 10 binary acid, for example succinic acid, glutaric acid, adipic acid, pimelic acid,
Suberic acid, azelaic acid, decanedioic acid, preferably adipic acid, decanedioic acid；Can also be long carbochain biatomic acid, such as 11 carbon binary
Acid, SL-AH, tridecanyldicarboxylic acid, DC14,15 carbon dicarboxylic acids, 16-dicarboxylic acid, 17 carbon two
First acid, DC18, maleic acid, preferably △ 9-1,18- octadecylene binary acid, SL-AH；More preferably oneself
Diacid.
Above-mentioned binary acid can also be aromatic acid and its derivative, such as terephthalic acid (TPA).
Above-mentioned binary acid can also be heterocycle binary acid and its derivative, such as furan dicarboxylic acid.
Above-mentioned binary acid can be that prepared by chemical method or prepared by the raw material of bioanalysis or biological source.
In the present invention, according to the selection of diamine in above-mentioned raw materials and binary acid, polyamide A can include but is not limited to poly-
One or more in acid amides 54, polyamide 56, polyamide 510, polyamide 512, preferably polyamide 56.
In the present invention, the raw material of the blended fiber may also include caprolactam or hexamethylene diamine and binary acid, and it is with polyamides
Amine B represents that polyamide B weight is not higher than polyamide A weight.Polyamide B include but is not limited to polyamide 6, polyamide 66,
One or more in polyamide 610, polyamide 612, preferably polyamide 66.
In the present invention, polyamide A can be the copolymer that pentanediamine and two kinds or more binary acid polymerisation are obtained, can
To be the mixture of a kind of copolymer or a variety of copolymers, above-mentioned polyamide copolymer can be random copolymer, can
To be alternate copolymer or block copolymer.
In the present invention, polyamide A can be the mixture of above-mentioned homopolymer and/or copolymer.
In the present invention, polyamide A and polyamide B raw material can also include other monomers, including but not limited to amino acid,
Caprolactam.
In the present invention, the organic of the renewable source for meeting ASTM D6866 standards can be included in polyamide A and polyamide B
Carbon.
In the present invention, there is no any limitation to polyamide A and polyamide B preparation, any known method system can be used
It is standby, for example by pentanediamine and aliphatic diacid in water into salt, then nylon resin is made in high-temperature polycondensation.
Can be added as needed during polyamide A and polyamide B is prepared catalyst, end-capping reagent, antioxidant,
Any one in heat stabilizer, light stabilizer, fire retardant, pigment and dyestuff, conductive filler or antistatic filler, delustering agent etc.
Or it is several.It is used as end-capping reagent, such as including but not limited to following material, monocarboxylic acid, dicarboxylic acids, monoamine, diamine, neighbour
The acid anhydrides such as phthalate anhydride, monoisocyanates, single carboxylic acid halides, monoesters class and unary alcohol etc..From raising blend melt homogeneity
From the viewpoint of, preferred diamine.As catalyst, including but not limited to following material, such as sodium hypophosphite, phosphate,
It is preferred that sodium hypophosphite.
The source of polyester is not particularly limited the present invention, can be the self-control of any known method or commercially available poly- terephthaldehyde
One or more mixing of sour glycol ester, PTT and polybutylene terephthalate (PBT).
Polyamide-polyester blend fibre number of the present invention is 0.5~7dtex.According to the difference of application field, the present invention
Device and technique can adjust filament number.Due to the too low easy anomaly such as occur breaking end of filament number, while monofilament is fine
Spend high and fabric bending strength can be caused too high, Boardy Feeling.Therefore, the fiber number of polyamide polyester blended fiber of the invention is more
Preferred scope is 1.0~5.0dtex.Meanwhile, if above-mentioned filament number is maintained in invention claimed range, can according to
Way selects suitable filament number, to meet application requirement.
The intensity of the polyamide polyester blended fiber of the present invention is 1.0~5.5cN/dtex (li ox/dtex).Intensity mistake
It is low, easily there is fine hair in weaving process, finished product cracky, intensity is too high, and spinnability is poor during spinning, fracture of wire phenomenon easily occurs,
According to the difference using field, adjusted by polymerization and spinning technique, polyamide polyester blended fiber more preferably strength range is
1.5~5.0cN/dtex.
The elongation at break of the polyamide polyester blended fiber of the present invention is 15.0~370%.
The dye-uptake of polyamide polyester blended fiber provided by the present invention acid dyeing at ambient pressure is up to 62%
More than, preferably more than 82%, more preferably more than 86%.
The polyamide polyester blended fiber of the present invention, can include polyamide polyester blending as-spun fibre, polyamide polyester
Blended fiber long filament, polyamide polyester blending POY fibers, polyamide polyester blending plus elater, polyamide polyester blending FDY fiber
And polyamide polyester blend staple dimension.
The present invention also provides the preparation method of above-mentioned blended fiber, comprises the following steps：
Polyester and polyamide are imported in blender according to predetermined ratio (such as above-mentioned weight ratio), in a constant temperature
Blend melt is obtained after being mixed under degree；And
Above-mentioned blend melt is imported into spinning-drawing machine and carries out spinning.
The hybrid mode of polyamide and polyester is not particularly limited in the present invention, when the form of polyamide and polyester for section
When, it is possible to use single screw rod/double screw extruder is mixed after melting polyamide section and polyester slice in container, can also
Polyamide section and polyester slice are directly added into heating melting stirring mixing after container, in addition, gathering in polyester production process
Ester be melt form, can by after molten polyamide with the form of melt inject polyester fondant in and mix.
In the preparation method of the present invention, it can be vacuumized in the melt mixed stage, vacuum is 20~101325Pa (absolute pressures
Power), preferably 20~40000Pa, melt viscosity number can be effectively improved by vacuumizing, and can prevent the generation of lousiness, improve fiber strong
Degree.
Melt mix temperature is preferably 220~320 DEG C, more preferably 250~290 DEG C.Mixing temperature is too low, such as less than
220 DEG C, easily there is solidification phenomenon in melt；Mixing temperature is too high, such as, higher than 320 DEG C, easily occurs side reaction.
There is no particular limitation to spinning technique by the present invention, can be spun using existing any applicable polyester or nylon melt
Silk technology, those skilled in the art can determine suitable technological parameter as needed.
Above-mentioned polyamide-polyester blend melt is imported into spinning-drawing machine, spinning are carried out at 220~320 DEG C, more preferably 250~
300 DEG C of progress spinning, spinning speed is 200~1500m/min, and preferably spinning speed is 400~1200m/min, more preferably 500
~1100m/min carries out spinning, can obtain polyamide-polyester blend as-spun fibre.
Polyamide-polyester blend melt is imported into spinning-drawing machine, spinning are carried out at 220~320 DEG C, spinning speed 1500~
6000m/min, it is 1800~5200m/min more preferably to spin speed, can obtain polyamide-polyester blend POY fibers.
Polyamide-polyester blend melt is imported into spinning-drawing machine, spinning, the fibre got off from spinneret are carried out at 220~320 DEG C
Dimension is directly entered the first hot plate, 75~140 DEG C of temperature of heat plate, 800~2000m/min of speed, subsequently into the second hot plate, hot plate
Carry out the drawing-off of fiber between 140~250 DEG C of temperature, 3200~6000m/min of speed, the one the second hot plates, drafting multiple 2~
5 times；The fibre bundle come out from the second hot plate is wrapped into up- coiler, 3100~5800m/min of winding speed, can after winding
Obtain polyamide-polyester blend FDY fiber.
By polyamide-polyester blend as-spun fibre 40~120 DEG C carry out one-level drawing-offs, 1.5~6 times of drafting multiple,
80~160 DEG C progress two grades of drawing-offs, 1.1~1.6 times of drafting multiple, 120~250 DEG C carry out thermal finalizations after can obtain polyamide-
Polyester blend fiber filament.
Polyamide-polyester blend as-spun fibre is subjected to one-level drawing-off, 1.5~4 times of drafting multiple, 80 at 40~120 DEG C
Fiber is crimped by two grades of drawing-offs of~160 DEG C of progress, 1.1~2 times of drafting multiple afterwards, 10~20/25cm of crispation number,
Then thermal finalization 15 minutes is carried out at 120~200 DEG C, can be gathered after the fiber after sizing is prescinded on cutting machine, packed
Acid amides-polyester blend chopped fiber.
By polyamide-polyester blend POY fibers on elasticizer with 300~1200m/min 1.3~3 times of speed draw,
Preheating cabinet temperature is 120~250 DEG C, and D/Y is 1.4~2.6,140~240 DEG C of shaping box temperature, 800~2200m/ of winding speed
Min, can obtain polyamide-polyester blend plus elater.
In the present invention, one or more additives, the parts by weight of additive can be added when polyamide and polyester blend
For 0~20 part.
Additive can include but is not limited to delustering agent, age resister, antioxidant, heat stabilizer, fire retardant, pigment and dye
Material, conductive filler or antistatic filler.These additives can as needed add in the range of the effect of the present invention is not damaged
Plus.Its feed postition can use existing known method.
Polyamide and delustering agent can be added during polyester blend in the present invention, as delustering agent, included but is not limited to following
Material, such as silica dioxide delustring agent, titanium dioxide delustering agent, pure polyester matting resin, pure PET delustrant, organic quenching
Agent, fumed silica matting agent etc., preferably titanium dioxide delustering agent.
Polyamide and age resister can also be added during polyester blend in the present invention, as age resister can be a kind of or
A variety of ultraviolet absorber, one or more antioxidant, or a variety of compound in ultraviolet absorber and antioxidant.
It is used as ultraviolet absorber, including but not limited to following material, such as salicylic acid esters, benzophenone class, benzotriazole, substitution propylene
Nitrile and triazines.It is used as salicylate type ultraviolet absorbent, such as including but not limited to following material, salicyl salicylate (salsalate) bisphenol-A
The p- tert-butyl group phenyl ester of ester, salicylic acid, phenyl salicylate, isopropyl salicylate, isoamyl salicylate, butyl salicylate etc., make
For benzophenone class ultraviolet absorber, including but not limited to following material, such as 2,4-DihydroxyBenzophenone, 2- hydroxyl -4- methoxies
Base benzophenone, 2-hydroxy-4-n-octoxybenzophenone etc., as Benzotriazole Ultraviolet Stabilizer, including but are not limited
In following material, such as 2- (2'- hydroxyl -5'- aminomethyl phenyls) BTA (UV-P), the 2- (2'- hydroxyl -3'- tert-butyl groups -5'-
Aminomethyl phenyl) -5- chlorobenzotriazoles (UV-326), 2- (2'- hydroxyls -3', 5'- di-tert-butyl-phenyl) -5- chlorobenzotriazoles
(UV-327) etc..Antioxidant includes copper system antioxidant, hindered phenol series antioxidant, amine system of being obstructed antioxidant, phosphorus system antioxygen
Agent, sulphur system antioxidant etc., wherein, preferably hindered phenol series antioxidant, phosphorous antioxidant.
Polyamide and fire retardant can be also added during polyester blend, fire retardant can include but is not limited to melamine in the present invention
Amine cyanurate, hydroxide, such as magnesium hydroxide or aluminium hydroxide, ammonium polyphosphate, brominated Polystyrene, brominated polyphenylether, bromine
Change makrolon, brominated epoxy resin, and the combination being made up of any these fire retardants and antimony oxide based on bromine etc..
Polyamide and heat stabilizer can be also added during polyester blend, heat stabilizer can include but is not limited to base in the present invention
Compound in hindered phenol, the compound based on quinhydrones, the compound based on thiazole, and the compound based on phosphorus, such as phenyl
Phosphonic acids, the compound based on imidazoles, such as 2-mercaptobenzimidazole, its substitution product, copper halide, iodine compound.
Polyamide and pigment and dyestuff can be also added during polyester blend in the present invention, pigment and dyestuff include cadmium sulfide, phthalein
Cyanines, carbon black etc..
Polyamide and antistatic filler can be also added during polyester blend, antistatic filler can include but not limit in the present invention
It is such as poly- in alkyl sulphate type anionic antioxidant, quaternary ammonium salt cationic type antistatic additive, non-ionic antistatic agent
Oxygen ethene sorbitan monostearate, both sexes antistatic additive based on glycine betaine etc..
The present invention also provides a kind of fabric, and the fabric includes above-mentioned blended fiber.
According to traditional knowledge in industry, it is considered that polyester is Immiscible Polymer Blends with polyamide, simply mixes the two
Easily there is noted phase separation phenomena, so as to cause the mechanical property of its blend drastically to decline.And method provided by the present invention is pressed by polyester
After being sufficiently mixed by a certain percentage with the polyamide melt prepared by pentanediamine, it is found surprisingly that phase point does not occur in blend melt
From phenomenon, the blended fiber of gained has preferable mechanical property, while blended fiber has more conventional polyamide 6, polyamide
The higher hygroscopicity (reaching as high as more than 3.8%) of fiber and higher dye-uptake (reach as high as 85% obtained by 66 modified poly esters
More than) and dyeability.
By lot of experiment validation, it has been found that the blend method described in patent is more beneficial for polyamide Amino End Group with gathering
Ester reacts, and reaction product serves the effect of compatilizer, without adding extra compatilizer, conventional compatilizer bag
Include but be not limited to cyclic acid anhydride type compatilizer, carboxylic acid type compatilizer such as acrylic type compatilizer, epoxies compatilizer such as asphalt mixtures modified by epoxy resin
Lipid etc..As traditional method that compatible co-mixing system is obtained by extra compatilizer, although compatilizer adds not
The compatibility of compatible system, but the complexity of system is comparatively also increased, and the physical property of compatilizer in itself can be to blending
System produces limitation, such as fusing point, mechanical property etc..Method provided by the present invention can also improve system homogeneity simultaneously, subtract
When young molecule is generated, beneficial to raising blended fiber mechanical property.Further, since polyamide used in the present invention is with odd number carbon
Atom diamine is made as raw material, and the amido link on its strand only has half formation intermolecular hydrogen bonding, that is, has more acyls
Amine key participates in water suction and dyeing comes up, while unique two-way extension α structures that its crystal structure also shows, these uniquenesses
Molecular structure and strand interaction impart the modified effect that blended fiber surmounts conventional polyamide 6 and polyamide 66.This
Outside, present invention also avoids influence spinning of the abundant residues monomer present in the amino acid such as polyamide 6 or lactams type nylon etc.
Problem.
In summary, polyamide of the invention-technique used in polyester blend fiber is simple, production efficiency is high, gathers at present
Simple transformation can be directly realized by production on the straight spinning equipment of ester.Gained fibre property is good, fibrous fracture intensity ＞ 1.0cN/
Dtex, elongation at break ＞ 5%, indices can meet follow-up woven requirement, and the fiber production operation is simple, cost
It is relatively low, suitably carry out industrialized production., can be with cotton or hair using the cotton or wool type fiber prepared by the blended fiber of the present invention
With arbitrary proportion blending, using the woven fabric of this mixed yarn, a bath can be carried out with dye, and dye no color differnece, dye-uptake is high,
It can deeply contaminate, enormously simplify the dyeing process of fabric, effectively reduce cost.
It should be noted that the raw material of polyamide-polyester blend fiber of the present invention can not include compatilizer, but not
Repel compatilizer application, the present invention polyamide-polyester blend fiber on the basis of using a small amount of compatilizer it is identical into
Divide also within the scope of the present invention.
The present invention is described in further detail by the following examples.
Unless otherwise mentioned, raw material used in the embodiment of the present invention is commercially available.
Unless otherwise mentioned, the pentanediamine in the present invention refers both to 1,5- pentanediamines.
Embodiment
Each characteristic in embodiment and comparative example, known method is determined in accordance with the following methods and in industry：
Inherent viscosity η (dL/g), method of testing：With reference to ASTM D4603-2003；
Polyamide viscosity number (mL/g), method of testing：With reference to GB12006.1-89；
Polyamide Amino End Group (mol/ton (mole/ton)), method of testing：Using trifluoroethanol as solvent, automatic current potential is utilized
Titrator is measured.
Saturated water absorption (%), method of testing：With reference to GB/T 1034-2008；
Fracture strength (CN/dtex), method of testing：With reference to GB/T3916-1997；
Elongation at break (%), method of testing：With reference to GB/T3916-1997；
Dye-uptake (%), method of testing：With reference to FZ/T54037-2011.
Comparative example 1
Dried 0.6kg nylon 66 slices (viscosity number 140mL/g, Amino End Group 52mol/ton) and 9.9kg is poly- to benzene two
Formic acid glycol ester (inherent viscosity 0.83dL/g) section is added in 50L autoclaves, while adding 50g polyoxyethylene sorbitols
System is evacuated to 60pa by acid anhydride monostearate, system after nitrogen displacement three times, is heated to 285 DEG C, through being sufficiently stirred for,
Using Melt Pump import manifold, 285 DEG C carry out spinning, the first 80 DEG C of temperature of heat plate, speed 1500m/min, subsequently into
The drawing-off of fiber, drafting multiple are carried out between second hot plate, 160 DEG C of temperature of heat plate, speed 3750m/min, the one the second hot plates
2.5 again；The fibre bundle come out from the second godet is wrapped into up- coiler, winding speed 3700m/min, is gathered after winding
Acid amides-polyester blend FDY fiber.
Fibrous fracture intensity 3.46cN/dtex, elongation at break 20%, saturated water absorption is 0.68%, and gained is fine
Tie up in bath raio in 1: 20 carmoisine, to be dyed 30 minutes under 93 DEG C of normal pressures, dried after washing, detection obtains the blending
The dye-uptake of FDY fiber is 23%.Uneven dyeing, there is aberration, and lousiness is more.
Comparative example 2
Dried 0.6kg nylon 66 slices (viscosity number 140mL/g, Amino End Group 52mol/ton) and 9.9kg is poly- to benzene two
Formic acid glycol ester (inherent viscosity 0.83dL/g) section is added in 50L autoclaves, while adding 0.8kg polyethylene-methyls third
System is evacuated to 60pa by olefin(e) acid salt, system after nitrogen displacement three times, is heated to 285 DEG C, through being sufficiently stirred for, using molten
Body pump imports manifold, and spinning, the first 80 DEG C of temperature of heat plate, speed 1500m/min, subsequently into the second heat are carried out at 285 DEG C
The drawing-off of fiber, 2.5 times of drafting multiple are carried out between disk, 160 DEG C of temperature of heat plate, speed 3750m/min, the one the second hot plates；
The fibre bundle come out from the second godet is wrapped into up- coiler, winding speed 3700m/min, obtained after winding polyamide-
Polyester blend FDY fiber.
Fibrous fracture intensity 2.72cN/dtex, elongation at break 32%, saturated water absorption is 0.79%, and gained is fine
Tie up in bath raio in 1: 20 carmoisine, to be dyed 30 minutes under 93 DEG C of normal pressures, dried after washing, detection obtains the blending
The dye-uptake of FDY fiber is 68%.Even dyeing, no color differnece, lousiness is few.
From comparative example 1 and comparative example 2, polyamide and polyester are hardly formed with preferably compatible when not adding compatilizer
The co-mixing system of property, thus the acid-dyeable of polyester fiber be not modified well, thus obtained fiber
Dye-uptake is very low, and adds polyamide and polyester after compatilizer and can mix well, forms more homogeneous co-mixing system, by
The dye-uptake of this obtained blended fiber is greatly improved.It can therefore be seen that being when nylon66 fiber used in comparative example is with polyester blend
Obtaining the good fiber of dye-uptake must be added to compatilizer.
Embodiment 1
Dried 0.1kg nylon 56 is cut into slices (viscosity number 70mL/g, Amino End Group 150mol/ton) and 9.9kg is poly- to benzene two
Formic acid glycol ester (inherent viscosity 0.7dL/g) section is added in 50L autoclaves, while adding the S-EED of 20g grams of Lay benefactor department
System is evacuated to 20pa by additive, system after nitrogen displacement three times, is heated to 285 DEG C, through being sufficiently stirred for, using molten
Body pump imports manifold, and spinning is carried out at 290 DEG C, and spinning speed 3800m/min obtains polyamide-polyester blend POY fibers.
Fibrous fracture intensity 3.2cN/dtex, elongation at break 39%, fiber modulus 36cN/dtex, saturated water absorption
For 0.56%, by gained fiber in bath raio in 1: 20 carmoisine, to be dyed 90 minutes under 93 DEG C of normal pressures, baking after washing
Dry, the dye-uptake that detection obtains the polyamide-polyester blend long filament can reach 62%.More uniform, no color differnece is dyed, it is hairless
Silk.
It is 1,5- pentanediamines and the polyamide of binary acid that raw material is employed in embodiment 1, is preparing the process of blended fiber
In do not add compatilizer, the dye-uptake of gained fiber is close to the result for the comparative example 2 for having added compatilizer.
Embodiment 2
Dried 0.3kg nylon 56 is cut into slices (viscosity number 120mL/g, Amino End Group 70mol/ton) and 9.7kg is poly- to benzene two
Formic acid glycol ester (inherent viscosity 0.82dL/g) section is added in 50L autoclaves, while it is suspended to add titanium dioxide containing 40g
System is evacuated to 10000pa by liquid, system after nitrogen displacement three times, is heated to 290 DEG C, through being sufficiently stirred for, utilizes melt
Pump imports manifold, and spinning is carried out at 285 DEG C, and spinning speed 800m/min obtains polyamide-polyester blend as-spun fibre, will
85 DEG C of progress one-level drawing-offs of the as-spun fibre, 3 times of drafting multiple, 135 DEG C of progress, two grades of drawing-offs, 1.6 times, 180 DEG C of drafting multiple
Fiber filament is obtained after carrying out thermal finalization.
The fibre number 0.5dtex, fracture strength 5.5cN/dtex, elongation at break 15%, fiber modulus 42cN/
By gained fiber in the carmoisine that bath raio is 1: 20,90 are dyed under 93 DEG C of normal pressures for dtex, saturated water absorption 0.74%
Minute, dried after washing, the dye-uptake that detection obtains the polyamide-polyester blend long filament can reach 73%.Even dyeing, it is colourless
Difference, no lousiness.
Embodiment 3
Dried 0.6kg nylon 56 is cut into slices (viscosity number 140mL/g, Amino End Group 56mol/ton) and 9.4kg is poly- to benzene two
Formic acid glycol ester (inherent viscosity 0.83dL/g) section is added in 50L autoclaves, while adding 500g polyoxyethylene sorbitols
System is evacuated to 60pa by alcohol acid anhydride monostearate, system after nitrogen displacement three times, is heated to 280 DEG C, through fully stirring
Mix, manifold is imported using Melt Pump, spinning, the first 80 DEG C of temperature of heat plate, speed 1500m/min, Ran Houjin are carried out at 280 DEG C
Enter the second hot plate, 160 DEG C of temperature of heat plate, speed 3750m/min carries out the drawing-off of fiber, drawing-off times between the one the second hot plates
2.5 times of number；The fibre bundle come out from the second godet is wrapped into up- coiler, winding speed 3700m/min, is obtained after winding
Polyamide-polyester blend FDY fiber.
Fibrous fracture intensity 3.81cN/dtex, elongation at break 26%, saturated water absorption is 1.09%, and gained is fine
Tie up in bath raio in 1: 20 carmoisine, to be dyed 30 minutes under 93 DEG C of normal pressures, dried after washing, detection obtains the blending
The dye-uptake of FDY fiber can reach 77%.Even dyeing, no color differnece, no lousiness.
Embodiment 4
By dried 1kg nylon 56 cut into slices (viscosity number 135mL/g, Amino End Group 48mol/ton) utilize single screw extrusion machine
9kg polyethylene terephthalates (inherent viscosity 0.85dL/g) melt that polymerization vacuum polymerization is completed is imported at 280 DEG C
In, system is evacuated to 500pa, it is 282 DEG C to maintain temperature, through being sufficiently stirred for, manifold is imported using Melt Pump, 282
Spinning is carried out at DEG C, winding speed 800m/min is obtained after polyesteramide as-spun fibre boundling in 78 DEG C of progress one-level drawing-offs, led
2.8 times of multiple is stretched, fiber is crimped, then entered at 180 DEG C by 140 DEG C of progress, two grades of drawing-offs, 1.3 times of drafting multiple afterwards
Row thermal finalization 15 minutes, obtains fiber number for 3.5dtex, length is after the fiber after sizing is prescinded on cutting machine, packed
78mm wool type polyamide-polyester blend chopped fiber.
Fibrous fracture intensity 2.09cN/dtex, elongation at break 68%, saturated water absorption is 1.53%, and this is blended
Chopped fiber is dried with the Vickery blue that bath raio is 1: 20, being dyed 35 minutes under 90 DEG C of normal pressures after wool blend after washing,
The dye-uptake that detection obtains the blending product can reach 82%.Even dyeing, no color differnece.
Embodiment 5
Dried 1.5kg nylon 56 is cut into slices (viscosity number 155mL/g, Amino End Group 38mol/ton), 1.5kg nylon 56/66
Section (pentanediamine is equal with hexamethylene diamine molal quantity, viscosity number 152mL/g, Amino End Group 42mol/ton), 6kg poly terephthalic acid second
Diol ester (inherent viscosity 0.82dL/g) is cut into slices and 2kg PTTs (inherent viscosity 0.79dL/g) section point
Not Li Yong single screw extrusion machine imported at 278 DEG C in 50L autoclaves, system is evacuated to 20000pa, and be heated to 280 DEG C,
Through being sufficiently stirred for, using Melt Pump import manifold, 275 DEG C carry out spinning, winding speed 2800m/min, obtain polyamide-
Polyester blend POY fibers, by the fiber on elasticizer with 900m/min 1.6 times of speed draw, preheating cabinet temperature is 220
DEG C, D/Y is 1.7, winding speed 1400m/min, obtains polyamide-polyester blend plus elater.
Fibrous fracture intensity 2.72cN/dtex, elongation at break 38%, saturated water absorption is 2.70%, and gained is fine
Tie up in bath raio in 1: 20 Vickery blue, to be dyed 60 minutes under 95 DEG C of normal pressures, dried after washing, detection obtains the polyamides
Amine modified poly ester adds the dye-uptake of elater to can reach 86%.Even dyeing, no color differnece, no lousiness.
Embodiment 2-5 employs the raw material of different proportion and composition, and the dye-uptake of gained fiber can be promoted to more than 80%.
Embodiment 6
Dried 2kg nylon 56 is cut into slices (viscosity number 165mL/g, Amino End Group 36mol/ton), 1kg nylon 512 is cut into slices
(viscosity number 155mL/g, Amino End Group 33mol/ton), 4kg polyethylene terephthalates (inherent viscosity 0.83dL/g), 3kg gather
Mutual-phenenyl two acid bromide two alcohol ester (inherent viscosity 0.80dL/g) melt and 2kg epoxy resin E-45 import twin-screw after stirring evenly and squeezed
Go out machine, imported at 260 DEG C in 50L autoclaves, system is evacuated to 40000pa, spinning, winding speed are carried out at 260 DEG C
800m/min is spent, obtains carrying out one-level drawing-off after polyesteramide as-spun fibre boundling at 68 DEG C, 3.2 times of drafting multiple, 135 DEG C are entered
Fiber is crimped by two grades of drawing-offs of row, 1.3 times of drafting multiple afterwards, then carries out thermal finalization 15 minutes at 170 DEG C, will be fixed
Fiber after type prescinds on cutting machine, pack after obtain fiber number for 1.8dtex, length is 38mm cotton polyamide-polyester
Blend staple is tieed up.
Fibrous fracture intensity 2.03cN/dtex, elongation at break 46%, 13/25cm of crispation number, saturated water absorption
2.84%, gained fiber is dried in bath raio in 1: 20 Vickery blue, to be dyed 35 minutes under 90 DEG C of normal pressures after washing
Dry, the dye-uptake that detection obtains the polyamide modified polyester copolymer chopped fiber of the cotton can reach 88%.Even dyeing, it is colourless
Difference, no lousiness.
In embodiment 6 on the basis of raw material is used for the polyamide of 1,5- pentanediamines and binary acid, further it with the addition of
A small amount of compatilizer, obtained blended fiber dye-uptake slightly has raising.
Embodiment 7
Dried 3kg nylon 56 is cut into slices (viscosity number 180mL/g, Amino End Group 20mol/ton), 1kg nylon 510 is cut into slices
(viscosity number 160mL/g, Amino End Group 33mol/ton), 3kg polyethylene terephthalates (inherent viscosity 0.85dL/g), 3kg gather
Propylene glycol ester terephthalate (inherent viscosity 0.77dL/g) melt and 100g p-methyl benzenesulfonic acid are stirred evenly with titanate coupling agent
After import double screw extruder, imported at 280 DEG C in 50L autoclaves, after sufficiently mixing, using entering after melt pump-metered
Spinning manifold, sprays from spinneret hole after melt is distributed, homogenized that to form melt thin in the filament spinning component of spinning manifold
Stream, the melt stream through supercooling, oil after be wound in spinning speed for 1100m/min, obtain polyamide-polyester common
Mixed as-spun fibre.
The as-spun fibre fiber number 7dtex, fracture strength 1.0cN/dtex, elongation at break 370%, saturated water absorption
3.84%.
Embodiment 8
Dried 2kg nylon 56 is cut into slices (viscosity number 155mL/g, Amino End Group 38mol/ton), 2kg nylon 66 slices (glue
Number 143mL/g, Amino End Group 45mol/ton), 3kg polyethylene terephthalates (inherent viscosity 0.85dL/g), poly- couple of 3kg
After benzene dicarboxylic acid trimethylene glycol ester (inherent viscosity 0.77dL/g) melt and 100g p-methyl benzenesulfonic acid are stirred evenly with titanate coupling agent
Double screw extruder is imported, is imported at 280 DEG C in 50L autoclaves, after sufficiently mixing, is spun using entering after melt pump-metered
Silk casing, sprays from spinneret hole after melt is distributed, homogenized in the filament spinning component of spinning manifold and forms melt stream,
The melt stream through supercooling, oil after be wound in spinning speed for 1100m/min, obtain polyamide-polyester blend
As-spun fibre.
The as-spun fibre fiber number 7dtex, fracture strength 1.4cN/dtex, elongation at break 290%, saturated water absorption
3.09%.
Above example is the explanation to technical scheme, and the limitation to technical solution of the present invention is not constituted.This area
Technical staff, can be by adjusting the raw material proportioning in preparation process, preparation process according to the knowledge of existing fiber producing processes
Temperature, pressure etc., to obtain the product of suitable performance.
Those skilled in the art should be noted that embodiment described in the invention is only exemplary, can be
Various other replacements, changes and improvements are made in the scope of the present invention.Thus, the invention is not restricted to above-mentioned embodiment, and only
It is defined by the claims.
Claims (24)
1. a kind of blended fiber, the raw material of the blended fiber includes polyamide and polyester, it is characterised in that the polyamide bag
The content for including polyamide A, the polyamide A is 1~40 parts by weight；The content of the polyester is 60~99 parts by weight, wherein, institute
The raw material for stating polyamide A is 1,5- pentanediamines and binary acid, and the polyester is selected from by polyethylene terephthalate, gathered to benzene
One or more in the group that naphthalate and polybutylene terephthalate (PBT) are constituted, the original of the blended fiber
Material does not include compatilizer.
2. blended fiber according to claim 1, wherein the content of the polyamide A is 10~30 parts by weight, the polyester
Content is 70~90 parts by weight.
3. blended fiber according to claim 1, wherein the polyamide A is one that 1,5- pentanediamines are polymerized with binary acid
The copolymer or a variety of that mixture, the 1,5- pentanediamines of kind homopolymer or a variety of homopolymers are polymerized with least two kinds binary acid
The mixture of copolymer or any foregoing combination.
4. blended fiber according to claim 3, wherein the polyamide A is selected from polyamide 56, polyamide 510 and polyamides
The one or more of amine 512.
5. blended fiber according to claim 1, wherein the viscosity number of the polyamide is 70~180mL/g, terminal amino group content is
20~150mol/ton.
6. blended fiber according to claim 1, wherein the inherent viscosity of the polyester is 0.7~0.9dL/g.
7. blended fiber according to claim 1, wherein the fiber number of the blended fiber is 0.5~7dtex, fracture strength is
1.0~5.5cN/dtex, elongation at break is 15~370%.
8. blended fiber according to claim 7, wherein the fiber number of the blended fiber is 1.0~5.0dtex, fracture strength is
1.5~5.0cN/dtex.
9. blended fiber according to claim 1, wherein the dye-uptake of blended fiber acid dyeing at ambient pressure is
More than 62%.
10. blended fiber according to claim 9, wherein the dye-uptake of blended fiber acid dyeing at ambient pressure is
More than 82%.
11. blended fiber according to claim 10, wherein the dye-uptake of blended fiber acid dyeing at ambient pressure
For more than 86%.
12. blended fiber according to claim 1, wherein the saturated water absorption of the blended fiber is more than 0.56%.
13. blended fiber according to claim 12, wherein the saturated water absorption of the blended fiber is more than 2.70%.
14. blended fiber according to claim 13, wherein the saturated water absorption of the blended fiber is more than 3.84%.
15. blended fiber according to claim 1, wherein the polyamide also includes polyamide B, the raw material of the polyamide B
The weight of the polyamide A is not higher than for the weight of caprolactam, or hexamethylene diamine and binary acid, and the polyamide B.
16. blended fiber according to claim 15, wherein the polyamide B be polyamide 6, polyamide 66, polyamide 610,
One or more in polyamide 612.
17. blended fiber according to claim 1, wherein the polyamide is polyamide A.
18. blended fiber according to claim 1, wherein the raw material of the blended fiber also includes additive, the additive
In delustering agent, age resister, antioxidant, heat stabilizer, fire retardant, pigment and dyestuff, conductive filler or antistatic filler
One kind or its combination, the content of the additive is 0~20 parts by weight.
19. according to the blended fiber of any one of claim 1 to 18, wherein the blended fiber is that polyamide polyester blending is first
Raw fiber, polyamide polyester blended fiber long filament, polyamide polyester blending POY fibers, polyamide polyester blending plus elater, polyamides
FDY fiber or one kind in polyamide polyester blend staple dimension or its combination is blended in amine polyester.
20. according to the preparation method of the blended fiber of any one of claim 1 to 19, including：
The polyester and the polyamide are imported in blender, blend melt is obtained after being mixed；And
The blend melt is imported into spinning-drawing machine and carries out spinning,
The temperature of wherein described mixing is 220~320 DEG C, and pressure is 20~101325Pa.
21. preparation method according to claim 20, wherein the temperature of the mixing is 260~290 DEG C, pressure is 20~
40000Pa。
22. preparation method according to claim 20, wherein the mixing include by after polyamide and polyester melt in container
Mixing, is either directly added into after container heating melting stirring mixing or will in polyester production process by polyamide and polyester
It is directly injected into polyester and is mixed after molten polyamide.
23. preparation method according to claim 20, is additionally included in blender and adds additive, the additive is selected from delustring
Agent, age resister, antioxidant, heat stabilizer, fire retardant, pigment and dyestuff, conductive filler or one kind in antistatic filler or
It is combined, and the content of the additive is 0~20 parts by weight.
24. a kind of fabric, blended fiber of the fabric containing any one of with good grounds claim 1 to 19.
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| CN107177903A (en) | 2017-09-19 |
| CN107177903B (en) | 2020-03-17 |
| CN105040156A (en) | 2015-11-11 |
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