CA1271303A - Process and a device for treating threads, slivers or the like consisting of various filaments and optionally processed in a tissue or knitwear, and the like - Google Patents
Process and a device for treating threads, slivers or the like consisting of various filaments and optionally processed in a tissue or knitwear, and the likeInfo
- Publication number
- CA1271303A CA1271303A CA000513762A CA513762A CA1271303A CA 1271303 A CA1271303 A CA 1271303A CA 000513762 A CA000513762 A CA 000513762A CA 513762 A CA513762 A CA 513762A CA 1271303 A CA1271303 A CA 1271303A
- Authority
- CA
- Canada
- Prior art keywords
- treating agent
- treated
- process according
- directed
- gas streams
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/08—Processes in which the treating agent is applied in powder or granular form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0058—Liquid or visquous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0058—Liquid or visquous
- B29K2105/0067—Melt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/251—Particles, powder or granules
Abstract
ABSTRACT
Process and device for the treatment of threads, slivers and the like consisting of various filaments and optionally processed in a tissue or knitwear comprising suspending a treating agent in one or more gas or liquid streams, which are thereupon directed to the material to be treated under controllable pressure.
Process and device for the treatment of threads, slivers and the like consisting of various filaments and optionally processed in a tissue or knitwear comprising suspending a treating agent in one or more gas or liquid streams, which are thereupon directed to the material to be treated under controllable pressure.
Description
7~L~ 3 A PROCESS AND A DEVICE FOR TREATING THREADS, SLIVERS
OR THE LIKE CONSISTING OF VARIOUS FILAMENTS AND
OPTIONALLY PROCESSED IN A TISSUE OR KNITWEAR, AND
THE LIKE.
The invention relates to a process and a device for treating threads, slivers or the Like consisting of various filaments and optionally processed in a tissue or knitwear with a treating agent, a separation S between the filaments being effected ;n order to have the agent better penetrate into the structure of filaments.
Similar processed and devices are generally known, in particular for the production of composed materials consisting of thermoplastic or thermosetting substances, wherein ~ilaments function as reinforcing material.
For instance in Dutch patent application 70 01623 a process is described, where;n the threads of sLivers consisting of a great number of filaments are separated before a synthetic res;n in powder form is applied thereon, whereupon this resin ;s molten in result of which a coherent product is obtained. The spreading of the filaments in the slivers is for instance effected according to the Dutch patent appl;cation by giving to the f;laments an electrostatic charge with the same sign. According to another embodiment the ,~ j ~;~7~ 3 sliv~rs axe passed through a venturi, which in the same direction is passed by a fluid at a high velocity. The spreacliny of the filaments occurs -then under the influence of the relaxation of the fluid on leaving the venturi.
The invention provides for a process for treating material consisting of a p]urality of monofil~ ents, with a treating agent, characterized in that the treati.ng agent is suspended in at least one stream, which is then directed to the material to ~e treated under a controllable pressure, so as to separate the monofil~ ents and thereby treat the separated a monofi ~ments with the treating agent.
It has turned out that in this way a very efficient spreading of~the filaments is effected, as a result of which impregnating material suspended in the streams of fluid penetrates well between the filaments and impregnate the same very homo-geneously. This results in the inal product, for instance a sheet of plastic material reinforced by filaments, being of a very homogeneous composition.
The process according to the invention is applicable no matter what the nature of the filaments or the nature of the impregnating agent is.
For instance, powdery ceramic products and metal products are considered as impregnating materials in addition to thermo-plastic or thermosetting materials.
The process according to the invention is also feasible for the application of layers of impregnating material of various thicknesses on various sides of the material to be impreg-nated. For instance a tissue or knitwear
OR THE LIKE CONSISTING OF VARIOUS FILAMENTS AND
OPTIONALLY PROCESSED IN A TISSUE OR KNITWEAR, AND
THE LIKE.
The invention relates to a process and a device for treating threads, slivers or the Like consisting of various filaments and optionally processed in a tissue or knitwear with a treating agent, a separation S between the filaments being effected ;n order to have the agent better penetrate into the structure of filaments.
Similar processed and devices are generally known, in particular for the production of composed materials consisting of thermoplastic or thermosetting substances, wherein ~ilaments function as reinforcing material.
For instance in Dutch patent application 70 01623 a process is described, where;n the threads of sLivers consisting of a great number of filaments are separated before a synthetic res;n in powder form is applied thereon, whereupon this resin ;s molten in result of which a coherent product is obtained. The spreading of the filaments in the slivers is for instance effected according to the Dutch patent appl;cation by giving to the f;laments an electrostatic charge with the same sign. According to another embodiment the ,~ j ~;~7~ 3 sliv~rs axe passed through a venturi, which in the same direction is passed by a fluid at a high velocity. The spreacliny of the filaments occurs -then under the influence of the relaxation of the fluid on leaving the venturi.
The invention provides for a process for treating material consisting of a p]urality of monofil~ ents, with a treating agent, characterized in that the treati.ng agent is suspended in at least one stream, which is then directed to the material to ~e treated under a controllable pressure, so as to separate the monofil~ ents and thereby treat the separated a monofi ~ments with the treating agent.
It has turned out that in this way a very efficient spreading of~the filaments is effected, as a result of which impregnating material suspended in the streams of fluid penetrates well between the filaments and impregnate the same very homo-geneously. This results in the inal product, for instance a sheet of plastic material reinforced by filaments, being of a very homogeneous composition.
The process according to the invention is applicable no matter what the nature of the filaments or the nature of the impregnating agent is.
For instance, powdery ceramic products and metal products are considered as impregnating materials in addition to thermo-plastic or thermosetting materials.
The process according to the invention is also feasible for the application of layers of impregnating material of various thicknesses on various sides of the material to be impreg-nated. For instance a tissue or knitwear
-2-il ;~'7~ t33 whirh is appliecl in~ernally or externally to a light-weight core can be impregnated by application of the invention~
As treating agent a grinding material can also be used, which makes the material treated with it rough~ in result of which it is made better suitable for the adherence to it of a sizing and the like.
It is preferred to direct the gas streams wherein the treating material is suspended with application of the venturi principle to the material to be treated.
The treating material can be suspended in a gas stream in various ways, for instance by atomizing it in the gas stream as a meLt or Liquid. It is aLso possible to dose a powdery treating material directly into a gas or Liquid stream from a containeru It is aLso possible to suspend the treating material in a fluidized bed in a gas and to withdraw the gas streams to be directed to the material to be treated from the fluidized bed by suction power. Per se the application of a fluidized bed for the impregnation of bundles of filaments is known, for instance from Dutch patent specification ~51 928. ln this known method, however, the materiaL to be impregnated is passed through the fluidized bed of impregnating material.
If, however, in the process according to the invention a fluidized bed is appl;ed, the actual ;mpregnation occurs outs;de this bed.
The ;nvention also relates to a dev;ce for carry;ng out ~;~'7~3~
-the invented process with a SpACe wherein via a perforated bottom a ~as can be Eed and a supply pipe Eor powdery treating agent, said device being characterized in -that the said space is provided with one or more suc-tion pipings, which on the discharge side debouch into means which are reciprocable movable trans-versely to the path which the material to be treated covers during operation of the device. If the gas is directed to the material to be treated from various sides, care can be~taken that the gas streams do not fully collide with each other.
It is also possible, applying the invention, to apply various impregnating materials, either over each other, or to various faces, in several spaces separated from each other, in order to prevent an undesirable mixiny of the various impregnating ma-terials.
The invention also provdes a device for treating materials consisting of a plurality of monofi ~ments with a treating agent, comprising:
means for guiding said material through a substantially open space; and means ~or supplying at least one stream containing a treating agent to said materials in said open space so as to separate said monofil~ ents and thereby expose each monofil~ment to said treating agent.
The invention will be illustrated hereinunder by way of example with the aid of the following description as well as the enclosed figures.
~4~
As treating agent a grinding material can also be used, which makes the material treated with it rough~ in result of which it is made better suitable for the adherence to it of a sizing and the like.
It is preferred to direct the gas streams wherein the treating material is suspended with application of the venturi principle to the material to be treated.
The treating material can be suspended in a gas stream in various ways, for instance by atomizing it in the gas stream as a meLt or Liquid. It is aLso possible to dose a powdery treating material directly into a gas or Liquid stream from a containeru It is aLso possible to suspend the treating material in a fluidized bed in a gas and to withdraw the gas streams to be directed to the material to be treated from the fluidized bed by suction power. Per se the application of a fluidized bed for the impregnation of bundles of filaments is known, for instance from Dutch patent specification ~51 928. ln this known method, however, the materiaL to be impregnated is passed through the fluidized bed of impregnating material.
If, however, in the process according to the invention a fluidized bed is appl;ed, the actual ;mpregnation occurs outs;de this bed.
The ;nvention also relates to a dev;ce for carry;ng out ~;~'7~3~
-the invented process with a SpACe wherein via a perforated bottom a ~as can be Eed and a supply pipe Eor powdery treating agent, said device being characterized in -that the said space is provided with one or more suc-tion pipings, which on the discharge side debouch into means which are reciprocable movable trans-versely to the path which the material to be treated covers during operation of the device. If the gas is directed to the material to be treated from various sides, care can be~taken that the gas streams do not fully collide with each other.
It is also possible, applying the invention, to apply various impregnating materials, either over each other, or to various faces, in several spaces separated from each other, in order to prevent an undesirable mixiny of the various impregnating ma-terials.
The invention also provdes a device for treating materials consisting of a plurality of monofi ~ments with a treating agent, comprising:
means for guiding said material through a substantially open space; and means ~or supplying at least one stream containing a treating agent to said materials in said open space so as to separate said monofil~ ents and thereby expose each monofil~ment to said treating agent.
The invention will be illustrated hereinunder by way of example with the aid of the following description as well as the enclosed figures.
~4~
3~33 21.027-322 Figure 1 .i5 a side view in cross-section of a schematically drawn installation Eor carrying out the process.
Figure 2 is a top view of the dev.tce accordiny to the invention.
Figure 3 is a side view of the very same device.
Figure 4 is a cross-section A.A. of the very same device.
i -4a-3~3 Fig. 5 is an enlarged representation of an essential part of the device according to Figures 2, 3 and 4 Fig. 6 gives a number of variants a-e incl. of the S application of the invention.
As represented in fig. 1 widths of continuous filament beams 1 are formed by unwinding thern from the horizontal coils 2 under automatically maintained controllable tension. ~ia the guiding 3 the bundles come into the preheating oven ~. The oven is heated with the automatically controLlable heat source 5. Then the dried and preheated filament beams are passed through a thermally isolated receptacle 7, via the guiding 6, where 1S impregnation takes place !vide fig. 2-6 incl.). There-upon the bundles are passed via the melting furnace 8, wherein one or more heating bodies are applied controlled by thermocoupLes. Same are automatically controlled by the means 9 at a predetermined heating intensity. There-upon the filament bundles are formed into bands andpassed through a cooling means 11 via cooled forming rollers 10 and wound on the collecting coil 1~ via delivering rollers 12 and the guiding 13. This coil ;s driven by the electromotor 15. After the delivering Z5 rollers 12 the band o~ ~ilaments can also further be processed for instance by cutting it longitudinally - andJor transversely.
The installation for carrying out the process can, if desired, be carried out wholly or partly vertically.
In the device according to figures 2-5 incl. the bundles of filaments in the thermally isolated impregnation 13~ 3 receptacle 7 are d;str;buted over the rollers 16, wh;ch are positioned outside the feed1ng axes.
Optionally the axes of the roLlers 16 are mounted pivotally about the shaft 17 pair-wise. This makes S it possible that the bundles can be positioned in the centerline when they are pulled into the device.
Spreading o-f the bundles over more than one layer of rollers, in this case two, facilities a better distribution of the filaments. After having passed the rollers the filaments are impregnated. The powdery impregnating material which is fed from the dosing device 18, is flu;d;zed ;n the bed 20 ;n gas 21 fed through the perforated bottom 19~
Preferably th;s gas ;s preheated. In the spaces 22 under the ;nfluence of pump;ng act;on~ gas streams wherein the impregnating material is suspended are sucked under controllable pressure from the fluidized bed to the impregnating he~ds 23, from which it is directed to the continuousLy moving bundles of -filaments~
In order to effect an optimal impregnation the impregnating heads 23 are optionally adjustable with respect to distance and/or an~le turning in regard of the material to be ;mpregnated~
The various parts which are applied in the impregnat;ng receptacle 7 can simply be d;splaced and/or replaced.
For ;nstance other types or roLlers, and/or other impregnating heads can be used for the impregnation of var;ous types of material~
The gas streams with therein the finely d;vided 1.~7~3~:~;3 impregnating material are preFerably directed -to the filaments to be impregnated from two or more impregnating heads. This results in a very homogeneous distribution of the impregnating material over the individual filaments. The impregnating method described makes it possible to operate with a considerably lower filament tension then required in a mechanical impreg-nating system, in which -the impregnat;ng material is pressed between the filaments by means of pressure rollers. The lower filament tension results in the substantial elimination of filament rupture which often occurs in the mechanical impregnation of for instance carbon f;laments~ Th;s comb;ned w;th the more intensive impregnation also makes a greater impregnation rate poss;ble.
In f;g. 5 ;t is indicated that the suction of the gas wherein the impregnating material is suspended occurs through the conduit 26 with application of the venturi principle. V;a the condu;ts 25 gas is fed under a controllable pressure. It is preferred to suck the gas fed by a pump through the conduit 25 from the space 7 In result a circulation pump system of the gas is obtained and heat losses are prevented.
If no use ;s made of a fluid;zed bed it is advantageous to connect the dosing device 18 directly to the impregnating heads or the;r supply mains.
When using ;mpregnatiny liquids it is preferred to ;nject the l;qu;d either d;rectly ;nto the impregnating head(s) or to suck it d;rectly from the dos;ng device 18.
~,~7.~3C~3 In Fig~ 6 a plurality of schemes of emboclim~nts oF
more-sided and/or mobile impregnating heads are represented, which are suitable for the continuous impregnation of bundles of filaments optionally processed ;n a tissue or knitwear. These bundles are optionally applied to cores. These may have the following shapes:
a. rectangular, b. cyl;ndrical, c. honeycomb-shaped.
For -the internal impregnation of hollow structures fully closed along their circumference, which are provided with filament materials, the process must be discontinuous. Then impregnating heads can be applied in the hollow spaces. Then the impregnating heads and/or the material to be impregnated can be moved in such a way that the desired impregnation is attained.
This is further illustrated with the aid o~ figures 6 e and d.
Fig. 6 d represents an aeroplane nose 27, which internally and externally is provided with filament material that has to be impregnated. For the internal impregnation use is made of the impregnating head 78 and for the external impregnation of the impregnating head 29. By rotating the nose and reciprocate the impregnating heads 28 and 29 over guidings 30 and 31 the desired impregnation is obtained.
In fig. 6e 32 represents part of a dish antenna internally and externally is provided with filament material that has to be impregnated. This occurs by ~ J~
_9_ means of the impregnating heads 33 and 3l~, ~Jh;ch are reciprocated radially via guidings ~5 and 36. ~f desired, the motions described can be computer controlled, which makes possible an optimal impregnation S of more complex types of material~
If bundles of filaments processed into tissues or knitwears are applied to cores, the impregnated material is heated in an autoclave under a predetermined desired pressure. Optionally, heat emitters can be bu;Lt in in the autoclave.
According to the afore-described way impregnated filament bands optionally woven into a certain shape can be treated to aeroplane noses, radar domes and other structures. It is also possible to apply a mel-ting furnace consisting for instance of two mould halves for heating.
In order to facilitate weaving, knitting and/or twisting with impregnated filament bands can be separated wholly or partly into narrower bands. These narrow bands are then provided with an additional thin impregnating layer with application of the process according to the invention. This layer consisting of a specially selected impregnating material sees to it that the impregnating material already present between the filament rema;ns in place dur;ng weav;ng and~or knitting and besides prevents the adsorption of moisture.
In order to effect this the band may optionally be subjected to for instance a temperature treatment on the surface. Particularly in case of impregnating materials of high rigidity the weaving and/or knitting t~
with narrow bands, wh;ch have not been passe~ through a melting furnace, is possibl.e without a considerablc adaptation of the installations in question and loss of veLocity. Then the tissue, knitwear and/or twisted materiaL can be passed through a melting furnace in order to be processed further optionaLly via cooLed form rollers.
As treating agents may for instance be used:
Acetal resins Acrylic resins AcryLonitrile-butadiene-styrene resins Aluminium Alkyd resins Aluminia Aryl resins Bismale;m;de res;ns CobaLt Copper Ekonol Epoxy res;ns FLuorcarbon resins Fluorcopolymers Lead Melamine res;ns NickeL
Phenol resins Polyacetalresins PoLyacryLate Polyamide (nyLon) PoLybutadiene PoLybutylenterephthalate Polycarbonate :LX7~3~3 .. .~
Aromatic polyesters Thermoplast;c polyesters Polyetheretherketones Polyetherimides Polyethersulfones PoLyalkenes PolyethyleneterephthaLates Polyimides Polyoxymethylen resins Modified polyphenylene ox;des Polyphenylene sulfides PoLyphenylene sulfides Polyphenylenoxides Polyphenylsulfones Polystyrene PoLysulfone Polytetrafluorethylene Polyurethane Polyvinylchloride Polyvinyl;dene fluoride Modif;ed polypropylene oxide S;lica Silicon carbide Silicon nitride Silicone Styrene acrylonitriLe copolymers Styrenic copolymers Titanium Tungsten Urea Vinyl ester Rubbers 7'~ )3 and additives like:
Anti static agents Blowing agents Colorants Concrete Coupling agents Fillers Flame retardants Foam materials 10' Heat stabilizers Hollow fillers Lubricants Minerals Plasticizers Processing aids Silicones Stabilizers Superalloys Ultraviolet absorbers Water soluble plastics Whiskers.
The material to be treated may for instance consist of:
Aluminium Aluminium oxides Aramide Asbestos Boron Carbon Cobalt Copper Glass High silica and quarz L;thium aluminium silicate Magnesiuln Nickel Polyalkene Silica Silicon Silicon carbide Sil;con nitr1de Steel Titani um Tungsten Zinc Zirconia Zirconium~
Figure 2 is a top view of the dev.tce accordiny to the invention.
Figure 3 is a side view of the very same device.
Figure 4 is a cross-section A.A. of the very same device.
i -4a-3~3 Fig. 5 is an enlarged representation of an essential part of the device according to Figures 2, 3 and 4 Fig. 6 gives a number of variants a-e incl. of the S application of the invention.
As represented in fig. 1 widths of continuous filament beams 1 are formed by unwinding thern from the horizontal coils 2 under automatically maintained controllable tension. ~ia the guiding 3 the bundles come into the preheating oven ~. The oven is heated with the automatically controLlable heat source 5. Then the dried and preheated filament beams are passed through a thermally isolated receptacle 7, via the guiding 6, where 1S impregnation takes place !vide fig. 2-6 incl.). There-upon the bundles are passed via the melting furnace 8, wherein one or more heating bodies are applied controlled by thermocoupLes. Same are automatically controlled by the means 9 at a predetermined heating intensity. There-upon the filament bundles are formed into bands andpassed through a cooling means 11 via cooled forming rollers 10 and wound on the collecting coil 1~ via delivering rollers 12 and the guiding 13. This coil ;s driven by the electromotor 15. After the delivering Z5 rollers 12 the band o~ ~ilaments can also further be processed for instance by cutting it longitudinally - andJor transversely.
The installation for carrying out the process can, if desired, be carried out wholly or partly vertically.
In the device according to figures 2-5 incl. the bundles of filaments in the thermally isolated impregnation 13~ 3 receptacle 7 are d;str;buted over the rollers 16, wh;ch are positioned outside the feed1ng axes.
Optionally the axes of the roLlers 16 are mounted pivotally about the shaft 17 pair-wise. This makes S it possible that the bundles can be positioned in the centerline when they are pulled into the device.
Spreading o-f the bundles over more than one layer of rollers, in this case two, facilities a better distribution of the filaments. After having passed the rollers the filaments are impregnated. The powdery impregnating material which is fed from the dosing device 18, is flu;d;zed ;n the bed 20 ;n gas 21 fed through the perforated bottom 19~
Preferably th;s gas ;s preheated. In the spaces 22 under the ;nfluence of pump;ng act;on~ gas streams wherein the impregnating material is suspended are sucked under controllable pressure from the fluidized bed to the impregnating he~ds 23, from which it is directed to the continuousLy moving bundles of -filaments~
In order to effect an optimal impregnation the impregnating heads 23 are optionally adjustable with respect to distance and/or an~le turning in regard of the material to be ;mpregnated~
The various parts which are applied in the impregnat;ng receptacle 7 can simply be d;splaced and/or replaced.
For ;nstance other types or roLlers, and/or other impregnating heads can be used for the impregnation of var;ous types of material~
The gas streams with therein the finely d;vided 1.~7~3~:~;3 impregnating material are preFerably directed -to the filaments to be impregnated from two or more impregnating heads. This results in a very homogeneous distribution of the impregnating material over the individual filaments. The impregnating method described makes it possible to operate with a considerably lower filament tension then required in a mechanical impreg-nating system, in which -the impregnat;ng material is pressed between the filaments by means of pressure rollers. The lower filament tension results in the substantial elimination of filament rupture which often occurs in the mechanical impregnation of for instance carbon f;laments~ Th;s comb;ned w;th the more intensive impregnation also makes a greater impregnation rate poss;ble.
In f;g. 5 ;t is indicated that the suction of the gas wherein the impregnating material is suspended occurs through the conduit 26 with application of the venturi principle. V;a the condu;ts 25 gas is fed under a controllable pressure. It is preferred to suck the gas fed by a pump through the conduit 25 from the space 7 In result a circulation pump system of the gas is obtained and heat losses are prevented.
If no use ;s made of a fluid;zed bed it is advantageous to connect the dosing device 18 directly to the impregnating heads or the;r supply mains.
When using ;mpregnatiny liquids it is preferred to ;nject the l;qu;d either d;rectly ;nto the impregnating head(s) or to suck it d;rectly from the dos;ng device 18.
~,~7.~3C~3 In Fig~ 6 a plurality of schemes of emboclim~nts oF
more-sided and/or mobile impregnating heads are represented, which are suitable for the continuous impregnation of bundles of filaments optionally processed ;n a tissue or knitwear. These bundles are optionally applied to cores. These may have the following shapes:
a. rectangular, b. cyl;ndrical, c. honeycomb-shaped.
For -the internal impregnation of hollow structures fully closed along their circumference, which are provided with filament materials, the process must be discontinuous. Then impregnating heads can be applied in the hollow spaces. Then the impregnating heads and/or the material to be impregnated can be moved in such a way that the desired impregnation is attained.
This is further illustrated with the aid o~ figures 6 e and d.
Fig. 6 d represents an aeroplane nose 27, which internally and externally is provided with filament material that has to be impregnated. For the internal impregnation use is made of the impregnating head 78 and for the external impregnation of the impregnating head 29. By rotating the nose and reciprocate the impregnating heads 28 and 29 over guidings 30 and 31 the desired impregnation is obtained.
In fig. 6e 32 represents part of a dish antenna internally and externally is provided with filament material that has to be impregnated. This occurs by ~ J~
_9_ means of the impregnating heads 33 and 3l~, ~Jh;ch are reciprocated radially via guidings ~5 and 36. ~f desired, the motions described can be computer controlled, which makes possible an optimal impregnation S of more complex types of material~
If bundles of filaments processed into tissues or knitwears are applied to cores, the impregnated material is heated in an autoclave under a predetermined desired pressure. Optionally, heat emitters can be bu;Lt in in the autoclave.
According to the afore-described way impregnated filament bands optionally woven into a certain shape can be treated to aeroplane noses, radar domes and other structures. It is also possible to apply a mel-ting furnace consisting for instance of two mould halves for heating.
In order to facilitate weaving, knitting and/or twisting with impregnated filament bands can be separated wholly or partly into narrower bands. These narrow bands are then provided with an additional thin impregnating layer with application of the process according to the invention. This layer consisting of a specially selected impregnating material sees to it that the impregnating material already present between the filament rema;ns in place dur;ng weav;ng and~or knitting and besides prevents the adsorption of moisture.
In order to effect this the band may optionally be subjected to for instance a temperature treatment on the surface. Particularly in case of impregnating materials of high rigidity the weaving and/or knitting t~
with narrow bands, wh;ch have not been passe~ through a melting furnace, is possibl.e without a considerablc adaptation of the installations in question and loss of veLocity. Then the tissue, knitwear and/or twisted materiaL can be passed through a melting furnace in order to be processed further optionaLly via cooLed form rollers.
As treating agents may for instance be used:
Acetal resins Acrylic resins AcryLonitrile-butadiene-styrene resins Aluminium Alkyd resins Aluminia Aryl resins Bismale;m;de res;ns CobaLt Copper Ekonol Epoxy res;ns FLuorcarbon resins Fluorcopolymers Lead Melamine res;ns NickeL
Phenol resins Polyacetalresins PoLyacryLate Polyamide (nyLon) PoLybutadiene PoLybutylenterephthalate Polycarbonate :LX7~3~3 .. .~
Aromatic polyesters Thermoplast;c polyesters Polyetheretherketones Polyetherimides Polyethersulfones PoLyalkenes PolyethyleneterephthaLates Polyimides Polyoxymethylen resins Modified polyphenylene ox;des Polyphenylene sulfides PoLyphenylene sulfides Polyphenylenoxides Polyphenylsulfones Polystyrene PoLysulfone Polytetrafluorethylene Polyurethane Polyvinylchloride Polyvinyl;dene fluoride Modif;ed polypropylene oxide S;lica Silicon carbide Silicon nitride Silicone Styrene acrylonitriLe copolymers Styrenic copolymers Titanium Tungsten Urea Vinyl ester Rubbers 7'~ )3 and additives like:
Anti static agents Blowing agents Colorants Concrete Coupling agents Fillers Flame retardants Foam materials 10' Heat stabilizers Hollow fillers Lubricants Minerals Plasticizers Processing aids Silicones Stabilizers Superalloys Ultraviolet absorbers Water soluble plastics Whiskers.
The material to be treated may for instance consist of:
Aluminium Aluminium oxides Aramide Asbestos Boron Carbon Cobalt Copper Glass High silica and quarz L;thium aluminium silicate Magnesiuln Nickel Polyalkene Silica Silicon Silicon carbide Sil;con nitr1de Steel Titani um Tungsten Zinc Zirconia Zirconium~
Claims (15)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1 A process for treating material consisting of a plurality of monofilaments, with a treating agent, characterized in that the treating agent is suspended in at least one stream, which is then directed to the material to be treated under a controllable pressure, so as to separate the monofilaments and thereby treat the separated monofilaments with the treating agent.
2. A process according to claim 1, characterized in that, the stream is directed to the material to be treated with application of the venturi principle.
3. A process according to claim 1, characterized in that said at least one stream comprises a plurality of gas streams directed to the material to be treated from various sides.
4. A process according to claim 3, characterized in that the gas streams do not fully collide with each other.
5. A process according to claim 3, characterized in that the means from which the gas streams flow to the material to be treated are moved over this material in a reciprocating manner.
6. A process according to claim 3, 4 or 5, characterized in that powdery treating agent is suspended in a fluidized bed in a gas and that the gas streams to be directed to the material to be treated are withdrawn from the fluidized bed by suction power.
7. A process according to claim 3, 4 or 5, characterized in that the treating agent is directly fed to the gas streams directed to the material to be treated in dosed amounts.
8. A process according to claim 3, 4 or 5, characterized in that the treating agent is suspended by atomization in the gas streams to be directed to the material to be treated as a melt or liquid.
9. A process according to claim 1, 2 or 3 characterized in that the treating agent is an impregnating agent.
10. A process according to claim 1, 2 or 3 characterized in that the treating agent is a grinding agent for making rough the material treated with it in order to make this better suitable for adherence thereon of a sizing and the like.
11. A device for carrying out the process according to claim 1 with a space to which via a perforated bottom a gas can be fed and a supply for powdery treating agent, characterized in that the said space is provided with one or more suction pipings, which on the discharge sides debouch into one or more spaces, wherein the gas streams are directed to the material to be treated.
12. A device according to claim 11, characterized in that the suction pipings debouch into means which are recipro-cable over the path which the material to be treated covers during operation of the device.
13. A device for treating materials consisting of a plurality of monofilaments with a treating agent, comprising:
means for guiding said material through a substantially open space; and means for supplying at least one stream containing a treating agent to said materials in said open space so as to separate said monofilaments and thereby expose each monofilament to said treating agent.
means for guiding said material through a substantially open space; and means for supplying at least one stream containing a treating agent to said materials in said open space so as to separate said monofilaments and thereby expose each monofilament to said treating agent.
14. The device of claim 13 wherein said means includes a suction pipe having a discharge end for debouching said treat-ing agent into said open space.
15. The device of claim 14 further comprising reciprocable means for debouching said treating agent over a path through which the materials travel.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8502045 | 1985-07-16 | ||
| NL8502045 | 1985-07-16 | ||
| NL8502947 | 1985-10-29 | ||
| NL8502947A NL8502947A (en) | 1985-07-16 | 1985-10-29 | METHOD AND APPARATUS FOR IMPREGNATING THREADS OF DIFFERENT FILAMENTS, RIBBONS OR THE LIKE WHICH, IF POSSIBLE, IN A FABRIC OR KNITTLE, E.D. BE PROCESSED. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1271303A true CA1271303A (en) | 1990-07-10 |
Family
ID=26646056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000513762A Expired - Fee Related CA1271303A (en) | 1985-07-16 | 1986-07-15 | Process and a device for treating threads, slivers or the like consisting of various filaments and optionally processed in a tissue or knitwear, and the like |
Country Status (23)
| Country | Link |
|---|---|
| US (1) | US4839199A (en) |
| EP (1) | EP0274464B1 (en) |
| JP (1) | JP2554067B2 (en) |
| KR (1) | KR930011715B1 (en) |
| CN (1) | CN1018005B (en) |
| AT (1) | ATE56228T1 (en) |
| AU (1) | AU596603B2 (en) |
| BG (1) | BG60018A3 (en) |
| CA (1) | CA1271303A (en) |
| CZ (1) | CZ278065B6 (en) |
| DD (1) | DD251584A5 (en) |
| DE (1) | DE3674005D1 (en) |
| DK (1) | DK165704C (en) |
| FI (1) | FI86651C (en) |
| HU (1) | HU201364B (en) |
| IL (1) | IL79406A (en) |
| MC (1) | MC1863A1 (en) |
| NL (1) | NL8502947A (en) |
| NO (1) | NO164180C (en) |
| PL (1) | PL153251B1 (en) |
| RO (1) | RO104882B1 (en) |
| SU (1) | SU1727536A3 (en) |
| WO (1) | WO1987000563A1 (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5206085A (en) * | 1987-08-13 | 1993-04-27 | Across Co., Ltd. | Preformed yarn useful for forming composite articles and process for producing same |
| US5228753A (en) * | 1988-10-01 | 1993-07-20 | Horst Klein | Process for producing bristle materials |
| FR2659595B1 (en) * | 1990-03-15 | 1992-09-04 | Inst Nat Rech Chimique | METHOD OF IMPREGNATION OF FIBERS USING POLYMER POWDER, IN A FLUIDIZED BED, AND DEVICE FOR IMPLEMENTING SAME. |
| US5364657A (en) * | 1990-04-06 | 1994-11-15 | The University Of Akron | Method of depositing and fusing polymer particles onto moistened continuous filaments |
| US5370911A (en) * | 1990-04-20 | 1994-12-06 | The University Of Akron | Method of depositing and fusing charged polymer particles on continuous filaments |
| ES2068595T3 (en) * | 1990-06-29 | 1995-04-16 | Flexline Services Ltd | A PROCEDURE FOR MANUFACTURING REINFORCED COMPOUNDS AND FILAMENT MATERIAL FOR USE IN SUCH PROCEDURE. |
| DE4325260A1 (en) * | 1993-07-28 | 1995-02-02 | Hoechst Ag | Process for the production of fiber-reinforced composite materials |
| FR2716885B1 (en) * | 1994-03-01 | 1996-04-12 | Solvay | Composite thermoplastic material and method of manufacturing articles based thereon. |
| US5756206A (en) * | 1995-03-15 | 1998-05-26 | Custom Composite Materials, Inc. | Flexible low bulk pre-impregnated tow |
| NL1004796C1 (en) * | 1996-12-16 | 1997-02-27 | Beleggingsmaatschappij Oeab Ov | Method and device for treating threads with powdered material. |
| US5895622A (en) * | 1997-04-07 | 1999-04-20 | Purdue Research Foundation | Method and apparatus for composite manufacture |
| EP0972623A1 (en) | 1998-07-17 | 2000-01-19 | Dsm N.V. | Granulate for the production of class A surface mouldings, process for the production of granulate and its use |
| GB0210760D0 (en) * | 2002-05-10 | 2002-06-19 | British Telecomm | Fibre coating method and apparatus |
| US20050133177A1 (en) * | 2003-12-22 | 2005-06-23 | Sca Hygiene Products Ab | Method for adding chemicals to a nonwoven material |
| DE102005022820A1 (en) * | 2005-05-12 | 2006-11-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for applying functional additives, in particular an adhesion promoter, to a pulp and method for producing a fiber composite material |
| CN101591826B (en) * | 2009-06-02 | 2011-09-28 | 杭州中亚布艺有限公司 | Nano yarn and system and method for preparing same |
| KR20180027412A (en) | 2015-05-08 | 2018-03-14 | 티스 게엠베하 운트 콤파니 카게 | METHOD OF TREATING FIBER SUBSTRATE AND APPARATUS |
| DE102016106480A1 (en) * | 2016-04-08 | 2017-10-12 | B+M Textil Gmbh & Co. Kg | Method for forming a three-dimensional structure strand |
| FR3061067B1 (en) * | 2016-12-22 | 2020-02-14 | Arkema France | METHOD FOR MANUFACTURING PRE-IMPREGNATED FIBROUS MATERIAL OF THERMOPLASTIC POLYMER BY SPRAYING |
| US11319256B2 (en) | 2017-09-19 | 2022-05-03 | Arris Composites Inc. | Fiber-reinforced metal-, ceramic-, and metal/ceramic-matrix composite materials and methods therefor |
| RU190727U1 (en) * | 2019-04-01 | 2019-07-10 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") | Apparatus for producing a composite material |
| CN114381944B (en) * | 2021-12-20 | 2024-04-09 | 浙江明舒科技有限公司 | Ultraviolet-resistant spinning, fabric and fabric modification equipment and modification method |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3172777A (en) * | 1965-03-09 | Process for depositing a water insoluble bactericide on a fabric | ||
| US3027869A (en) * | 1957-01-11 | 1962-04-03 | Cleanola Company | Spray apparatus for applying coatings |
| GB961989A (en) * | 1961-04-13 | 1964-06-24 | British Cellophane Ltd | Improvements in or relating to apparatus for distributing powdered materials |
| US3189506A (en) * | 1962-04-12 | 1965-06-15 | Eastman Kodak Co | Method and apparatus for forming continuous filament filter rods |
| US3390039A (en) * | 1964-10-09 | 1968-06-25 | Eastman Kodak Co | Method and apparatus for making additive filters |
| US3339357A (en) * | 1965-02-19 | 1967-09-05 | Owens Corning Fiberglass Corp | Process and apparatus for producing impregnated fiber material |
| US3439649A (en) * | 1965-03-15 | 1969-04-22 | Ransburg Electro Coating Corp | Electrostatic coating apparatus |
| US3589333A (en) * | 1967-05-02 | 1971-06-29 | Nat Distillers Chem Corp | Apparatus for coating elongated filament with plastic |
| US3830638A (en) * | 1967-05-11 | 1974-08-20 | Certain Teed Prod Corp | Apparatus for manufacture of plates or shaped sheets having a base of mineral fibers, particularly glass fibers |
| FR2031719A5 (en) * | 1969-02-05 | 1970-11-20 | Verre Textile Ste | |
| US3921420A (en) * | 1972-12-26 | 1975-11-25 | Gaston County Dyeing Mach | Apparatus for wet processing of textile materials |
| JPS5019677A (en) * | 1973-06-23 | 1975-03-01 | ||
| US3992903A (en) * | 1974-07-15 | 1976-11-23 | Rockwell International Corporation | Seamless garment including method of and machine for knitting the same |
| JPS5040845A (en) * | 1974-07-22 | 1975-04-14 | ||
| US4263871A (en) * | 1978-01-04 | 1981-04-28 | Gibson Jack Edward | Apparatus for powder coating sucker rod |
| CA1159317A (en) * | 1979-09-12 | 1983-12-27 | George S. Buck, Jr. | Process and apparatus for contacting a powder with a fibrous web |
| IT1137552B (en) * | 1980-04-17 | 1986-09-10 | Hauni Werke Koerber & Co Kg | DEVICE FOR APPLYING A PLASTICIZING LIQUID ON A MOVING TAPE |
| US4472224A (en) * | 1982-10-29 | 1984-09-18 | R. J. Reynolds Tobacco Company | Opening of cigarette filter tow and jet therefore |
| US4640219A (en) * | 1985-02-05 | 1987-02-03 | Oscar Mayer Foods Corporation | Apparatus for coating materials onto elongated foodstuffs |
-
1985
- 1985-10-29 NL NL8502947A patent/NL8502947A/en not_active Application Discontinuation
-
1986
- 1986-07-10 WO PCT/NL1986/000019 patent/WO1987000563A1/en active IP Right Grant
- 1986-07-10 AU AU61243/86A patent/AU596603B2/en not_active Ceased
- 1986-07-10 AT AT86904414T patent/ATE56228T1/en not_active IP Right Cessation
- 1986-07-10 EP EP19860904414 patent/EP0274464B1/en not_active Expired - Lifetime
- 1986-07-10 DE DE8686904414T patent/DE3674005D1/en not_active Expired - Fee Related
- 1986-07-10 US US07/036,673 patent/US4839199A/en not_active Expired - Fee Related
- 1986-07-10 KR KR1019870700224A patent/KR930011715B1/en not_active IP Right Cessation
- 1986-07-10 HU HU8833A patent/HU201364B/en not_active IP Right Cessation
- 1986-07-10 MC MC86NL8600019D patent/MC1863A1/en unknown
- 1986-07-10 JP JP50360086A patent/JP2554067B2/en not_active Expired - Lifetime
- 1986-07-14 IL IL7940686A patent/IL79406A/en not_active IP Right Cessation
- 1986-07-15 CA CA000513762A patent/CA1271303A/en not_active Expired - Fee Related
- 1986-07-15 PL PL1986260625A patent/PL153251B1/en unknown
- 1986-07-15 DD DD86292518A patent/DD251584A5/en not_active IP Right Cessation
- 1986-07-15 CZ CS865366A patent/CZ278065B6/en unknown
- 1986-07-16 CN CN86105125A patent/CN1018005B/en not_active Expired
-
1987
- 1987-03-16 DK DK134887A patent/DK165704C/en not_active IP Right Cessation
- 1987-03-16 NO NO871073A patent/NO164180C/en unknown
-
1988
- 1988-01-15 BG BG8264388A patent/BG60018A3/en unknown
- 1988-01-18 SU SU884355250A patent/SU1727536A3/en active
- 1988-01-18 FI FI880202A patent/FI86651C/en not_active IP Right Cessation
- 1988-01-18 RO RO131826A patent/RO104882B1/en unknown
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| Date | Code | Title | Description |
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| MKLA | Lapsed |