EP0020295A1 - Procédé de fabrication continue de matériaux textiles par contre-collage humide et compositions mousseuses utilisées pour ce procédé - Google Patents

Procédé de fabrication continue de matériaux textiles par contre-collage humide et compositions mousseuses utilisées pour ce procédé Download PDF

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Publication number
EP0020295A1
EP0020295A1 EP19800810149 EP80810149A EP0020295A1 EP 0020295 A1 EP0020295 A1 EP 0020295A1 EP 19800810149 EP19800810149 EP 19800810149 EP 80810149 A EP80810149 A EP 80810149A EP 0020295 A1 EP0020295 A1 EP 0020295A1
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Prior art keywords
parts
weight
component
percent
optionally
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EP19800810149
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German (de)
English (en)
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EP0020295B1 (en
Inventor
Günter Schmuck
Dieter Wegehaupt
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Novartis AG
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Ciba Geigy AG
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Priority to AT80810149T priority Critical patent/ATE4230T1/de
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    • 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
    • D06M17/00—Producing multi-layer textile fabrics
    • D06M17/04—Producing multi-layer textile fabrics by applying synthetic resins as adhesives
    • D06M17/06—Polymers of vinyl compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3008—Woven fabric has an elastic quality
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/601—Nonwoven fabric has an elastic quality

Definitions

  • the present invention relates to a continuous process for the production of wet-laminated, in particular elastic, textile materials with good air and / or water vapor permeability.
  • German Offenlegungsschrift 2,745,950 also discloses water-resistant, dry-laminated laminates in which the foam preparation is applied to a textile woven fabric and is first dried to such a degree of moisture at 90 to 180 ° C. for 1 to 10 minutes without heat curing, crosslinking or vulcanization that the foam is at least stabilized, whereupon the coated web of material subsequently covers with another textile web, ie is laminated dry, and the two textile webs are then always pressed together to form a laminate and are always subjected to heat treatment, with expensive equipment measures (use of heated calenders) being necessary.
  • the object of the present invention is now to provide a new process for the continuous production of wet-laminated, optionally elastic textile materials, the elasticity of the starting articles which may be present being retained, the textile materials obtained having good thermal insulation, a particularly soft feel and also good air and / or Have water vapor permeability and a good adhesive strength between the coating and the textile material is achieved.
  • the foaming agent used is a foamed aqueous preparation which comprises a self-crosslinking copolymer, e.g. contains on acrylate basis and possibly a curable aminoplast precondensate, and that this preparation is applied to a textile web that is in a de-energized state, wet-laminated a second web of web and then the laminate is finished by heat and optionally post-treatment.
  • the preparation is not dried before lamination.
  • the invention further relates to the foamed aqueous preparations of the laminating agent suitable for carrying out the method and to the preferably elastic textile material obtained according to the method.
  • the aqueous foamed preparations always contain only one of the three copolymers (a l ), (a 2 ) or (a 3 ), and always the components (c), (d) and (g), while the components (b), ( e) and (f) are optional. Preparations which contain the optional component (b) are preferred. Compared to the copolymers (a 3 ), the copolymers (a 2 ) and in particular (a l ) are preferred.
  • Suitable acrylic acid esters are, for example, methyl, ethyl, isopropyl, n-butyl, isobutyl, 2-ethylbutyl or 2-ethylhexyl acrylate, allyl acrylate, benzyl acrylate or tetrahydrofurfuryl acrylate, which can be used individually or as mixtures .
  • Component (3) can be crotonic acid, vinyl acetic acid, methacrylic acid, acrylic acid, itaconic acid, citraconic acid or mesaconic acid, and the N-methylolamides or N-methoxymethylolamides of the monocarboxylic acids mentioned.
  • the focus of interest is on N-methylolacrylamide and / or especially acrylic acid.
  • component (4) which can optionally be admixed and polymerized into the ternary system of ester-nitrile-acid or ester-nitrile-N-methylolamide, both those that can be polymerized on their own and those that are suitable for cannot be polymerized on their own.
  • vinyl esters of inorganic or organic acids for example sodium vinyl sulfate, vinyl acetate, vinyl formate, vinyl butyrate or vinyl benzoate, also vinyl alkyl ketones, vinyl halides, such as vinyl chloride or vinylidene chloride, vinyl
  • Examples of compounds which cannot be polymerized on their own are: maleic, fumaric, crotonic or itaconic acid or their esters or anhydrides, such as maleic anhydride, furthermore unsaturated hydrocarbons, such as camphene, furthermore unsaturated, acid-resistant ethers, such as isobornyl allyl ether or -diallyl ether.
  • the corresponding amides are preferably used in combination with N-methylolamides, since the N-methylolamides are generally prepared by partially methylolating the corresponding amides, so that amide and N-methylolamide are present in a mixture.
  • the methylol group can always also in etherified form, i.e. exist as methyl ether.
  • emulsifiers preferably take place in the presence of emulsifiers.
  • Suitable emulsifiers are those which have sufficient stability in an acidic medium, such as, for example, acidic fatty alcohol sulfuric acid esters, sulfonated castor oil, higher alkyl sulfonates, higher oxylalkyl sulfonates, in particular octadecane oxysulfonic acid sodium, preferably those which are free of other salts; Sulfodicarboxylic acid esters, for example the sodium salt of dioctyl sulfosuccinate, higher alkylarylsulfonates, and also poly Glycol ether higher molecular weight fatty alcohols, such as cetyl, oleyl or octadecyl alcohol, for example reaction products of 15 to 30 moles of
  • Emulsifiers with a pronounced wetting action such as octylphenol polyglycol ether or alkyl lauryl polyether, their optionally acidic sulfuric acid esters, optionally in the form of their sodium salts, and also lauric alcohol polyglycol ether, can also be used. Mixtures of such emulsifiers, and also mixtures of such emulsifiers with protective colloids, can also be used.
  • Organic or inorganic peroxides or persalts for example peracetic acid, acetyl peroxide, benzoyl peroxide, benzoylacetyl peroxide, t-butyl hydroperoxide, lauroyl peroxide, hydrogen peroxide, percarbonates, persulfates or perborates, which may optionally be added together with e.g. Iron (II) sulfate and sodium formaldehyde sulfinate can be used as redox catalysts.
  • peracetic acid for example peracetic acid, acetyl peroxide, benzoyl peroxide, benzoylacetyl peroxide, t-butyl hydroperoxide, lauroyl peroxide, hydrogen peroxide, percarbonates, persulfates or perborates, which may optionally be added together with e.g. Iron (II) sulfate and sodium formaldehyde sulfinate can be used as redox catalyst
  • copolymers based on acrylate used according to the invention as component (a l ) are known, for example, from DE-OS 2 744 256 and US Pat. No. 3,732,184.
  • the emulsion copolymers can be in partially neutralized form by, on the one hand, copolymerizing in the presence of small amounts (0.1 to 1% based on the monomer mixture) of an amine, e.g. an alkanolamine such as triethanolamine, and on the other hand, the emulsion of the copolymer can be partially with a base such as e.g. Ammonia is neutralized.
  • an amine e.g. an alkanolamine such as triethanolamine
  • Component (1) can be used both for the preparation of the copolymers based on acrylate (component (a l )) and for the preparation of copolymers based on vinyl acrylates (component (a2)).
  • vinyl esters for component (5) include vinyl formate, vinyl acetate, vinyl propionate, vinyl n-butyrate, vinyl isobutyrate, vinyl hexanoate, vinyl laurate, vinyl n-caproate, vinyl pivalate, vinyl stearate, vinyl isocaproate, vinyl pelargonate, vinyl chloroacetate and vinyl benzoate.
  • Optional components (6) include, above all, acrylamide, methacrylamide, allyl carbamate, methallyl carbamate, allyl urea, and the reaction products of these compounds with formaldehyde or acetaldehyde, which, if appropriate, additionally with alkanols such as methanol, ethanol, n-propanol, isopropanol, n-butanol , iso-butanol or t-butanol are etherified.
  • Component (6) which may also be used for the preparation of the copolymer (a 2 ), partially corresponds to the component (3) which is always used for the preparation of the copolymer (a l ). This applies in particular to methylolated components (6).
  • component (7) which is optionally admixed and polymerized into the binary system acrylic ester-vinyl ester or the ternary system acrylic ester-vinyl ester, for example methylolamide, for the preparation of component (a 2 ), both compounds which can be polymerized on their own are suitable , as well as those that cannot be polymerized by themselves.
  • the optional component (7) for the preparation of the copolymers (a 2 ) differs from the optional component (4) for the preparation of the copolymers (a l ) only in that the component (7) additionally acrylonitrile, but not a vinyl ester of organic acids such as Can be vinyl acetate.
  • Component (5) and optional component (6) for the preparation of the olefin-vinyl copolymers (a 3 ) have already been described above in the preparation of the vinyl acrylate copolymers (a 2 ).
  • Component (6) is primarily ethylene.
  • copolymers based on vinyl acrylates as component (a 2 ) and based on olefin-vinyl compounds as component (a 3 ) are known per se and are known in a known manner, essentially as described above for component (a l ), ie preferably in the presence of emulsifiers and catalysts of the type specified, the use of pressure being expedient for the preparation of component (a).
  • Optional products (b) of the foamed aqueous preparation are addition products of formaldehyde with methylolatable nitrogen compounds.
  • methylolizable nitrogen compounds or so-called aminoplast formers:
  • 1,3,5-aminotrizines such as N-substituted melamines, e.g. N-butyl melamine, N-trihalomethyl melamine, triazone and guanamine, e.g. Benzoguanamine, Acetoguanamine or Diguanamine.
  • cyanamide, acrylamide, alkyl or aryl ureas and thioureas, alkylene ureas or diureas for example ureas, thioureas, urones, ethylene ureas, propylene ureas, acetylene diurea, glyoxal monourein: or 4,5-dihydroxyimidazolidone-2 and their derivatives the 4,5-dihydroxyimidazolidone-2 substituted in the 4-position on the hydroxyl group with the radical -CH 2 CH 2 -CO-NH-CH 2 -OH or carbamates of lower alkanols, such as the methyl, ethyl or hydroxyethyl carbamates.
  • methylol compounds of urea, ethylene urea or in particular melamine are preferably used.
  • Valuable products generally provide both fully and only partially methylolated products, e.g. etherified or unetherified methylolmelamines, such as di- or trimethylolmelamine, or their corresponding ethers, such as alkyl ethers having 1 to 4 carbon atoms in the alkyl part, e.g. the n-butyl, isopropyl, n-propyl, ethyl or especially the methyl ether. Both aminomolecular compounds and more highly precondensed products are suitable as aminoplast preconditioned products.
  • Non-methylolated aminoplast formers of the type specified especially glyoxal monourein, can also be used as component (b).
  • component (b) in the present case may refer to aminoplast resins (aminoplast precondensates or aminoplast formers) as well as crease-resistant agents.
  • Components (c) and (d) are the foam components, and the stabilizer (d) and the wetting and thickening agents which may be used can improve the stability of the foams to such an extent that, in particular, a uniform and uniform coating of the first web can be achieved.
  • the preparation is foamed in a conventional foaming device using air or another inert gaseous material.
  • Preferred foaming agents (c) are optionally ethoxylated fatty alcohols with 8 to 24 carbon atoms, alkylarylsulfonic acids with 4 to 18 carbon atoms in the alkyl part, alkylsulfonic acids and alkyl sulfates with 8 to 24 carbon atoms, fatty alcohol or alkyl (C 4 -C 12) esterified with sulfuric or phosphoric acid ) -phenol - ethyleneoxy adducts: with 5 to 100 ethylene oxide units or their alkali metal or ammonium salts.
  • the fatty alcohol can be saturated or unsaturated and contains 8 to 24, preferably 12 to 22 carbon atoms.
  • examples of such alcohols are octanol, decanol, and also lauryl, myristyl, cetyl, stearyl, arachyl, or behenyl or oleyl alcohol.
  • the ethoxylated alcohols are preferably used, a degree of ethoxylation of 10 to 100, in particular 10 to 30, being preferred.
  • the alkylarylsulfonic acids are generally monosulfonic acids of naphthalene substituted with alkyl having 4 to 18 carbon atoms: or especially benzene.
  • alkylphenylsulfonic acids having 8 to 12 carbon atoms in the alkyl radical are preferred.
  • Alkyl sulfonic acids and alkyl sulfates generally contain 8 to 24 carbon atoms in the alkyl radical, such as, for example, Na lauryl or Na stearyl sulfonate or, above all, sulfate.
  • the fatty alcohol or alkyl (C 4 C 12 ) phenol-ethylene oxide adducts esterified with phosphoric acid and especially with sulfuric acid are reaction products of fatty alcohols with 8 to 24, in particular 12 to 22 carbon atoms (as indicated) or with straight-chain or branched alkyl phenols substituted with 4 to 12 carbon atoms (n-butyl, n-hexyl, n-octyl, iso-octyl, tert-octyl, n-nonyl, iso-nonyl, tert-nonyl, n-decyl or n-dodecyl) and ethylene oxide (5 to 100 mol), which are then esterified and, if appropriate, converted into the corresponding alkali metal or ammonium salts.
  • Suitable stabilizers (d) are e.g. Ammonium or amine salts of fatty acids with 8 to 24 carbon atoms or fatty acid-alkanolamine reaction products.
  • the fatty acid salts are usually lithium, sodium, potassium, ammonium, monoethanolamine, diethanolamine, triethanolamine or isopropanolamine salts of e.g. Caprylic, capric, lauric, myristic, palmitic, stearic, arachic, behenic, lignoceric, oleic, linoleic, linolenic, arachidonic or coconut fatty acids. Amine and ammonium salts are preferred.
  • the fatty acid-alkanolamine reaction products are products which consist of fatty acids with 8 to 24 carbon atoms, as previously stated, and alkanolamines with 2 to 6 carbon atoms, such as ethanolamine; Diethanolamine, isopropanolamine or di-isopropanolamine can be obtained.
  • reaction products are coconut fatty acid diethanolamide and lauric acid or stearic acid diethanolamide.
  • Preferred wetting agents are ethoxylated fatty alcohols with 8 to 24 carbon atoms or alkylphenols with 4 to 12 carbon atoms in the alkyl part.
  • the degree of ethoxylation is usually 1 to 9.
  • the presence of the non-mandatory wetting agent can be important if the foaming agent used forms a stable foam but is a relatively poor wetting agent; As a result, the foam is not applied evenly enough to the substrate, which impairs the quality of the laminated goods.
  • the amount of wetting agent - if used - can e.g. 0.01 to 1% by weight, based on the entire preparation.
  • Optional component (f) also includes thickeners, e.g. optionally modified cellulose (alkyl or hydroxyalkyl celluloses), polyvinyl alcohols, alginates or locust bean gum. Synthetic polyacrylic-based thickeners are also suitable. The thickeners can also serve to stabilize the foamed preparations.
  • thickeners e.g. optionally modified cellulose (alkyl or hydroxyalkyl celluloses), polyvinyl alcohols, alginates or locust bean gum. Synthetic polyacrylic-based thickeners are also suitable. The thickeners can also serve to stabilize the foamed preparations.
  • Components (a 1 ), (a 2 ), (a 3 ) and (b) to (f) are compounds and products known to the person skilled in the art.
  • aqueous preparations to be foamed must be made slightly alkaline with component (g).
  • Suitable components (g) are, for example, dibutylamine, preferably triethanolamine and in particular ammonia.
  • component (g) the same weak base is used, which may have been used to neutralize the emulsion polymers (a 1 ), (a 2 ) or (a 3 ).
  • the foams to be used according to the invention may also contain further additives, such as urea, oxidizing agents, solvents (e.g. diethylene glycol monobutyl ether or 2-butoxyethanol) or emulsifiers.
  • further additives such as urea, oxidizing agents, solvents (e.g. diethylene glycol monobutyl ether or 2-butoxyethanol) or emulsifiers.
  • the foams are preferably produced mechanically by means of high-speed stirrers, mixers or special foam pumps, the latter also being able to produce the foams continuously. It has proven to be expedient to pre-dissolve or predisperse the individual components before they are fed to the foaming apparatus. If desired, the foams can also be produced using conventional blowing agents.
  • components (c), (d) and optionally (e) are first mixed and dissolved with one another and thus to form aqueous solutions of 2 to 60 percent by weight. Foaming components arrives. Furthermore, it is also possible to mix the components with one another without adding water, but in the presence of an organic solvent. The remaining components are then added.
  • degrees of foaming i.e. Volume ratios of unfoamed to foamed preparation, from 1: 6 to 1:20, preferably 1: 8 to 1:15, have been found to be suitable.
  • the foams used according to the invention are distinguished by density and stability.
  • the bubble diameters in the foams are approximately 1 to 100 pm.
  • the foam density can be between 5 and 300 g / 1, preferably between 10 and 200 g / l and in particular between 100 and 200 g / 1.
  • Particularly stable foams are obtained when using 1.5 to 5 percent by weight of component (d) in the aqueous preparations.
  • foamed aqueous preparations are applied at room temperature or slightly elevated temperature, i.e. usually in a temperature range of 15 to 40 ° C.
  • Coating systems with a laminating device e.g. Rollers, laminating machines or stenter frames.
  • the foam is sprayed or sprayed onto the fabric webs and then distributed with a coating device (doctor blade) to form an even layer (thickness about 0.5 to 3 mm).
  • a first textile web runs tension-free through the coating system
  • the foam is knife-coated
  • a second textile web (possibly under only slight tension or preferably also tension-free) runs parallel to the first and is pressed lightly onto the Layer side of the first web wet laminated at 15 to 40 ° C., then dried, for example at temperatures up to 100 ° C., then mechanically pressed together, a linear pressure of 5 to 15 kg / cm 2 being sufficient, and finally hardened, whereby temperatures of about 100 to 180 ° C are required.
  • the drying and curing of the: treated substrate can be carried out thermally or with non-ionizing or ionizing radiation. All known thermal or radiation treatments can be used.
  • IR lamps hot gases, ovens, heating rollers or similar conventional heating agents for drying or for thermal curing.
  • Radiation curing can be carried out by UV radiation, gamma radiation, electron beam radiation or similar conventional means.
  • Woven fabrics, knitted fabrics and nonwovens which have a certain elasticity are generally considered as textile substrates.
  • These substrates can be made from all common natural and synthetic fiber materials such as glass fiber, cotton, linen, regenerated cellulose, cellulose acetate (2 1/2 or triaacetate), polyester, polyacrylonitrile, polyamide, polyurethane, wool, silk, polyolefins, especially polypropylene, or in particular Mixtures of different fibers can be produced, mixtures of elastic polyurethane fibers (3-30) with cotton, polyester or synthetic polyamide fibers (70-97) being preferred.
  • the laminated web can be different from the coated (1st web).
  • the textile Substrates can be colored or printed.
  • the textile substrates can be impregnated with agents for improving the properties before curing.
  • the textile, laminated substrate can e.g. are usually impregnated by splashing, spraying or preferably padding at room temperature.
  • agents are in particular water repellents and / or oil repellants, such as e.g. aqueous silicone oil emulsions, organic solutions of organopolysiloxanes, fat-modified melamine resins, fluorochemicals or water-soluble chromium complexes of stearic acid.
  • Such coatings show a good resistance in the chamical cleaning. Even with a certain loss of watertightness, the hydrophobic effect is retained in the case of webs additionally impregnated with hydrophobicizing agents.
  • agents for improving the properties of use are, for example, flame retardants, bacteriostatics, non-iron or wash and wear preparations, softening agents, dyes, pigments or optical brighteners.
  • flame retardants for example, bromine and / or phosphorus-containing flame retardants, laminated materials with permanent flame retardant properties are available.
  • pigments is for the production of laminated decorative fabrics, e.g. Curtains that are opaque matter.
  • a solid textile material is obtained which can be used above all for the production of air-impermeable but water vapor-permeable sportswear articles, such as wind and ski jackets, ski suits, anoraks, coats, in particular raincoats, and also work clothes, protective suits and sleeping bags.
  • the textile material laminated according to the invention is also of importance in the automotive industry for textile vehicle interiors, in particular headliners.
  • the laminated material has practically the elasticity of the starting material, the elasticity being particularly pronounced when using polyurethane-containing materials.
  • the laminated material also has good heat insulation and air and / or water vapor permeability, which can be influenced by the degree of foaming and the layer thickness of the laminating agent, and shows good to very good adhesive strength and a good soft feel, which may also result from the use of a soft grip agent can be reinforced.
  • component (d) 1.5 to 5 percent by weight
  • the adhesive strength and soft feel are particularly good and the air and / or water vapor permeability is distributed particularly regularly over the entire surface of the laminated material.
  • the washing and dry cleaning resistance of the material are good.
  • Parts and percentages in the following manufacturing instructions and examples are parts by weight and percentages by weight.
  • Copolymer A A monomer mixture consisting of
  • Copolymer B 2 An analogous emulsion is obtained using a monomer mixture.
  • Copolymer C A solution of 1.6 parts of octadecanoxysulfonic acid sodium in 62 parts of distilled water is mixed with 0.2 parts of triethanolamine, 0.1 part of isoctyl alcohol and 2.65 parts of 100% acrylic acid.
  • the mixture is slowly heated to 80 to 85 ° C. and polymerized for a further 2 3/4 hours.
  • a very finely divided, stable, coagulate-free emulsion with a dry content of 50 to 51% is obtained.
  • Copolymer D In the manner described according to instruction C, 50.16 parts of isopropyl acrylate and 2.64 parts of acrylonitrile are emulsified in a solution of 1.6 parts of sodium octadecanoxysulfonate in 77 parts of water, the 2.65 parts of acrylic acid and 0.2 part of triethanolamine and 0.1 parts of isooctyl alcohol are added.
  • Half of this emulsion is mixed with 3.2 parts of carbon tetrachloride and heated to 55 ° C. for polymerization with stirring and nitrogen.
  • 1 part of a 10% aqueous potassium persulfate solution is added, the polymerization begins, and after the temperature has risen to 65 ° C., the other half of the above emulsion, likewise mixed with 1 part of 10% potassium persulfate solution, is allowed to flow in within 35 to 40 minutes and The mixture is then stirred for 1 1/2 to 2 hours, gradually warming to 75 to 85 ° C. It creates a pure, stable, very finely divided emulsion with a polymer content of 40 to 41%.
  • Copolymer E The procedure is as described in instruction C, but 44.88 parts are used instead of 50.16 parts of isopropyl acrylate, 7.92 parts instead of 2.64 parts acrylonitrile and 72 parts instead of 77 parts water. A pure, stable, finely divided emulsion with a dry matter content of 43% is obtained.
  • Copolymer F Using 42.24 parts of isopropyl acrylate, 10.56 parts of acrylonitrile and 65.5 parts of water in place of the amount of these compounds specified in regulation D and while maintaining the amounts specified in that regulation for the other reaction components, analog is obtained How it works is a pure, stable, finely divided emulsion with a dry matter content of 45%.
  • Copolymer G 31.68 parts of 2-ethylhexyl acrylate and 21.12 parts of acrylonitrile are emulsified in a solution of 1.6 parts of octadecanoxysulfonic acid sodium in 55 parts of distilled water, and 2.65 parts of 100% are emulsified in the manner described in instruction C. acrylic acid, 0.2 part of triethanolamine and 0.1 part of isooctanol are added. The polymerization is carried out analogously to that described in regulation C. The very finely divided emulsion obtained is practically pure and stable and has a dry content of 50 to 51%.
  • Copolymer H 42.24 parts of isobutyl acrylate, 5.28 parts of acrylonitrile and 5.28 parts of benzyl acrylate are mixed according to the manner described in regulation C in a mixture of 1.6 parts of octadecanoxysulfonic acid sodium, 0.2 part of triethanolamine and 0.1 part of isooctanol , 2.65 parts of acrylic acid and 55 parts of water emulsified and polymerized.
  • the benzyl acrylate can be replaced by tetrahydrofurylacrylate, leaving the remaining components.
  • Copolymer I A mixture of 47.52 parts of isopropyl acrylate, 2.64 parts of acrylonitrile, 2.64 parts of acrylic acid amide in a mixture of 65.5 parts of condensed water, 1.6 parts of sodium octadecane sulfate, 2 , 65 parts of acrylic acid, 0.2 parts of triethanolamine and 0.1 part of isooctyl alcohol. Half of this emulsion is heated to 55 ° C. with nitrogen and stirring and 1 part of 10% aqueous potassium persulfate solution is added.
  • the polymerization After the polymerization has been used and the temperature has risen to 56 to 58 ° C., the other half of the monomer emulsion mixed with 1 part of 10% potassium persulfate solution is allowed to flow in within 1 hour. After the inflow has ended, the polymerization is continued for a further 3 to 3 1/2 hours at a temperature of 80 to 83 ° C.
  • Copolymer J If the procedure is as described in Procedure I using an equal amount of isobutyl acrylate instead of isopropyl acrylate, using only 55 parts of water instead of 65.5 parts, a pure, finely divided, stable emulsion with a dry content of 50 to 51% is obtained.
  • Copolymer K A mixture of 44.88 parts of isobutyl acrylate, 7.92 parts of acrylonitrile and 2.64 parts of camphene is dissolved in 58 parts of water, 1.6 parts of sodium octadecanoxysulfonic acid, 0.2 parts of triethanolamine, in the manner described in accordance with Regulation C. 2.65 parts of acrylic acid and 0.1 part of isooctanol are added, emulsified.
  • the polymerization in this half of the emulsion is achieved after heating to 63 to 65 ° C under nitrogen and stirring by adding 1 part of 10% potassium persulfate solution, whereupon the other half of the emulsion is allowed to flow in at 2O hours at 70 ° C. After the inflow has ended, a solution of 0.1 part of benzoyl peroxide in 0.8 part of benzene is rapidly added and the mixture is polymerized for a further 4 hours at 80 to 85 ° C. After the finished polymerized emulsion has been blown out with nitrogen, it is cooled to room temperature.
  • the pure, finely divided emulsion of the copolymer is stable and has a dry content of about 50%.
  • Copolymer L In the manner described in instruction C, 51.75 parts of isopropyl acrylate, 0.52 parts of allyl acrylate and 0.52 parts of acrylonitrile in a solution of 1.6 parts of octadecanoxysulfonic acid sodium in 60 parts of condensed water, the 2.65 parts of acrylic acid, are emulsified , 0.2 part of triethanolamine and 0.1 part of isooctanol are added. Half of the emulsion is heated for polymerization in a nitrogen atmosphere and with stirring to 57 to 58 ° C and mixed with 1 part of 10% aqueous potassium persulfate solution.
  • the finely divided, thin emulsion is stable and has a dry content of 48 to 50%.
  • Copolymer M 42.24 parts of isopropyl acrylate, 5.28 parts of isoboronyl • nyl allyl ether and 5.28 parts of acrylonitrile are, as per specification C, in a solution of 1.6 parts of octadecanoxysulfonic acid sodium in 75 parts of distilled water, the 2.65 parts of acrylic acid , 0.2 parts of triethanolamine and 0.1 part of isooctanol are added, emulsified.
  • Polymerization is carried out in the manner described in instruction C, but polymerization is carried out at 85 to 88 ° C. for 3 1/2 hours after the inflow of the emulsified monomers has ended.
  • the emulsion obtained is thin, finely divided, pure and stable.
  • Copolymer N According to procedure C, 46.93 parts of isopropyl acrylate and 5.87 parts of acrylonitrile are emulsified in a solution of 1.6 parts of octadecanoxysulfonic acid sodium in 75 parts of water, 2.65 parts of methacrylic acid, 0.2 part of triethanolamine and 0.1 part of isooctanol are added. Half of the emulsion is heated to 65 to 68 ° C. with stirring in a nitrogen atmosphere and mixed with 0.5 part of 10% aqueous potassium persulfate solution.
  • the finely divided, thin, liquid emulsion is stable and has a dry content of 46 to 47%.
  • Copolymer 0 As described in regulation A, a monomer mixture of 80% n-butyl acrylate, 10% acrylonitrile and 10% acrylic acid is copolymerized.
  • Copolymer P As described in regulation A, a monomer mixture of 85% isobutyl acrylate, 10% acrylonitrile and 5% acrylic acid is copolymerized.
  • Example 1 A foam composed as described below is applied to a polyamide polyurethane (85:15) knitted fabric by means of a doctor blade with a layer height of 2.0 mm and a speed of 10 m / minute in one line, then a cotton polyurethane ( 90:10) Knitwear is laminated wet without tension and then immediately fed into a warming channel and dried at 100 ° C.
  • the dry coating of polymer is 135 g / m 2 .
  • the material leaving the drying tunnel with 10% residual moisture is cooled to room temperature and cold pressed between two rollers. The mixture is then condensed at 180 ° C. for 30 seconds.
  • the latter operation can be combined with an impregnation to improve the properties of use, such as a handle or water and / or oil-repellent properties.
  • a laminated textile material with very good strength and elasticity is obtained.
  • the other copolymers can also be used to produce foams.
  • Example 2 On a polyester-polyurethane (85:15) knitted fabric, a composite foam as described below is applied by means of a doctor blade with a layer height of 1.5 mm and a speed of 6 m / minute in one line, then a cotton polyurethane ( 90:10) Knitwear is laminated wet without tension and then immediately passed into a warming duct and at 160 ° C. dried and condensed at the same time.
  • the dry coating of polymer is 80 g / m 2 .
  • the material emerging from the drying tunnel is cooled to room temperature and rolled up without pressing. Condensation is then carried out as described in Example 1, and, as described in Example 1, the latter operation can also be combined with impregnation.
  • a laminated material (weight: 460 g / m) with a particularly high permeability to air and water vapor is obtained.
  • Example 3 A polyamide-polyurethane (94: 6) fabric is coated with a foam composed as described below by means of a roller doctor blade as described in Example 1 and a fabric with the same fiber composition is laminated wet without tension and immediately dried, cooled and as described in Example 1 cold-pressed.
  • the dry coating of polymer is 135 g / m 2.
  • the completion is carried out as indicated in Example 1.
  • the coating system is continuously fed with a foam composed as described in Example 2 (liter weight 150 g).
  • a laminated, elastic textile material with good water vapor and air permeability is obtained.
  • Example 4 A foam composed as described below is applied to a polyamide polyurethane (80:20) knitted fabric by means of a roller doctor knife with a layer height of 1.5 mm and a speed of 15 m / minute in one line, then a cotton terry cloth Knitwear is laminated wet without tension and then immediately passed into a warming channel and dried at 100 ° C.
  • the dry coating of polymer is 100 g / m 2.
  • the material emerging from the drying tunnel with 10% residual moisture is cooled to room temperature and cold pressed between two rollers. Condensation is then carried out as described in Example 1, and this process step can be combined with impregnation.
  • a laminated textile material (weight: 540 g / m 2 ) with high elasticity and good water vapor and air permeability is obtained.
  • a laminated textile material with very good strength is obtained, which is impermeable to air but permeable to water vapor and also good water, oil and stain-repellent Has properties.
  • the foam can also be produced with the addition of an aminoplast resin (e.g. 50% aqueous solution of a mixture of dimethylolethylene urea and a modified methylolmelamine in a weight ratio of 7: 3).
  • an aminoplast resin e.g. 50% aqueous solution of a mixture of dimethylolethylene urea and a modified methylolmelamine in a weight ratio of 7: 3.
  • Example 7 A foam composed as described below is applied to a polyamide fabric dyed with acid dyes (140 g / m 2 ) using a doctor blade with a layer height of 1.0 mm and a speed of 10 m / minute in one line, then a polyester fleece (Insulating wadding) with a thickness of 10 mm, wet laminated without tension and then immediately passed into a heating channel and dried at 100 ° C.
  • the dry coating of polymer is 95 g / m2.
  • the dried material is cooled to room temperature and cold pressed between two rollers. The mixture is then condensed at 180 ° C. for 30 seconds.
  • a laminated textile material with very good strength, good air and water vapor permeability is obtained, which also has good heat insulation properties.
  • Example 10 A foam composed as described below is applied to a glass fiber fabric by means of a doctor blade with a layer height of 1.5 mm and a speed of 8 m / minute in one line, then a flame-retarded cotton fabric (flame retardant used: 3-dimethylphosphono- propionic acid-methylolamide) wet laminated without tension and then immediately passed into a warming channel and dried at 100 ° C.
  • flame retardant used 3-dimethylphosphono- propionic acid-methylolamide
  • the dry coating of polymer is 100 g / m 2 .
  • the material leaving the drying tunnel with 10% residual moisture is cooled to room temperature and cold pressed between two rollers.
  • the mixture is then condensed at 180 ° C. for 30 seconds.
  • a laminated textile material with good air and water vapor permeability is obtained, which is also permanently flame-retardant.
  • Example 11 On a polyester fabric vapor-coated with aluminum
  • a foam composed as described below is applied in one stroke by means of a roller knife with a layer height of 1.5 mm and a speed of 20 m / minute, then a cotton-polyester (67:33) fabric (120 g / m 2 ) wet laminated with low tension and then immediately passed into a warming channel and dried at 100 ° C.
  • the dry coating of polymer is 90 g / m 2 .
  • the dried material is cooled to room temperature and cold pressed between two rollers.
  • the laminate is then padded with an aqueous liquor (liquor absorption: 50%) which is in liters.
  • 30 g of a 26% aqueous emulsion in perchlorethylene of a dimethylpolysiloxane and a polyethylene wax in a weight ratio of 2.8: 1 as a softening agent contains, dried at 100 to 120 ° C and subjected to a heat treatment at 150 ° C for 4 minutes.
  • a laminated textile material is obtained which is opaque and heat-reflecting and which also has good grip properties.
  • a laminated textile material is obtained which has the properties given in Example 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
EP19800810149 1979-05-23 1980-05-01 Process for the continuous production of textile materials by wet bonding and the foamed compositions utilised in carrying out this process Expired EP0020295B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80810149T ATE4230T1 (de) 1979-05-23 1980-05-01 Verfahren zur kontinuierlichen herstellung nasskaschierter textilmaterialien und die zur durchfuehrung des verfahrens verwendeten verschaeumten zubereitungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4840/79 1979-05-23
CH484079 1979-05-23

Publications (2)

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EP0020295A1 true EP0020295A1 (fr) 1980-12-10
EP0020295B1 EP0020295B1 (en) 1983-07-20

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US (1) US4303456A (fr)
EP (1) EP0020295B1 (fr)
JP (1) JPS55158960A (fr)
AT (1) ATE4230T1 (fr)
DE (1) DE3063270D1 (fr)

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US4575886A (en) * 1982-01-18 1986-03-18 Larson Lynn D Fiberous wave-dampening apparatus
US4569707A (en) * 1982-10-25 1986-02-11 Becton, Dickinson And Company Method of making foamed slip resistant surfaces
US4589940A (en) * 1983-07-11 1986-05-20 Becton, Dickinson And Company Method of making foamed slip resistant surfaces
US4572865A (en) * 1983-12-05 1986-02-25 The Celotex Corporation Faced foam insulation board and froth-foaming method for making same
US4695501A (en) * 1984-04-10 1987-09-22 Fibre Converters, Inc. Thermoformable composite articles
US4563289A (en) * 1984-04-10 1986-01-07 Polysar Limited Impregnation of non-woven webs
JPH0710535B2 (ja) * 1987-08-20 1995-02-08 三井石油化学工業株式会社 ２層発泡成形品の製造方法
US4770668A (en) * 1988-01-19 1988-09-13 National Starch And Chemical Corporation Ethylene urea compositions useful as permanent press promoting chemicals
US5045387A (en) * 1989-07-28 1991-09-03 Hercules Incorporated Rewettable polyolefin fiber and corresponding nonwovens
DE3939549A1 (de) * 1989-11-30 1991-06-06 Henkel Kgaa Polymerhaltige textile gleitmittel
DE4017341A1 (de) * 1990-05-30 1991-12-05 Hella Kg Hueck & Co Beschichtung mit beschlagverhindernder wirkung
DE4124560A1 (de) * 1991-07-24 1993-01-28 Wacker Chemie Gmbh Beschichtungsmittel zur herstellung von wasserdichten, dampfdurchlaessigen und flammverzoegernden beschichtungen
CA2134908A1 (fr) * 1993-11-04 1995-05-05 Kaveh Sotoudeh Agents anti-corrosion pour circuits de refroidissement fermes
AU701339B2 (en) * 1994-07-29 1999-01-28 Fleity Pty. Limited Coated fabric
US5614591A (en) * 1994-12-15 1997-03-25 The Virkler Company Process and composition for imparting durable press properties to textile fabrics
US5816395A (en) * 1995-09-25 1998-10-06 Tkl Products Corp. Foam-layered packaging case
US20030219613A1 (en) * 2002-05-24 2003-11-27 Air Products Polymers, L.P., A Limited Partnership Waterborne hydrophobic barrier coatings
EP1633463B1 (fr) * 2003-05-16 2007-10-24 Velocys Inc. Procede pour former une emulsion par la technique de traitement en microcanal

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US4070325A (en) * 1969-11-04 1978-01-24 Exxon Research And Engineering Company Aqueous latices of high polymer compositions and process and means for the production thereof
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DE2745950A1 (de) * 1976-10-15 1978-04-20 Rohm & Haas Wasserfestes laminat

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ATE4230T1 (de) 1983-08-15
DE3063270D1 (en) 1983-07-07
EP0020295B1 (en) 1983-07-20
US4303456A (en) 1981-12-01
JPS55158960A (en) 1980-12-10

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