Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
  • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D06N3/042—Acrylic polymers
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
  • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
  • D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
  • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
  • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D06N3/045—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyolefin or polystyrene (co-)polymers
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
  • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D06N3/06—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
  • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
  • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
• • 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.]
  • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
  • Y10T442/2762—Coated or impregnated natural fiber fabric [e.g., cotton, wool, silk, linen, etc.]
  • Y10T442/277—Coated or impregnated cellulosic fiber fabric
  • Y10T442/282—Coating or impregnation contains natural gum, rosin, natural oil, or wax
• • 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.]
  • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
  • Y10T442/2861—Coated or impregnated synthetic organic fiber fabric

Definitions

• the invention relates to a process for the production of coated textile fabrics with the aqueous dispersion of an organic binder in the presence of certain additives.
• coating in the sense of the invention includes a binding, which presupposes a complete impregnation of the textile fabric with the binder dispersion.
• coated textile fabrics e.g. Leatherette
• the coating agent is applied to the substrate in one or more layers - either in the direct coating process or after the transfer process.
• the coated textile fabrics can be used for the production of outer clothing, shoe upper material and lining, baggage and upholstery material, tent fabrics, tarpaulins, conveyor belts etc.
• the undesirable sticking of fiber crossing points can be avoided if the textile fabric is treated with aqueous dispersions of organic binders and then coagulated.
• the coated textile fabrics produced in this way are distinguished by increased tensile strength and greater softness.
• the object of the invention was therefore to provide a process for textile coating without the disadvantages described, according to which a product of high quality is obtained with the aid of an aqueous dispersion with the lowest possible organic solvent content without using salt baths.
• the object of the invention can be achieved by using an aqueous binder dispersion based on at least one polymer in the presence of certain additives.
• Textile fabrics in the sense of the present invention are understood to mean, for example, fabrics, knitted fabrics, bound and unbound nonwovens.
• the textile fabrics can be constructed from synthetic and / or natural fibers. Basically, textiles made of any fibers are suitable for the method according to the invention.
• Suitable polymeric binders A include, for example, polybutadienes, polyacrylates, polyurethanes, polyvinyl acetates and vinyl chloride / vinyl acetate copolymers.
• polybutadienes A comprise polymers of optionally substituted butadienes having 4 to 9 carbon atoms per molecule, such as 1,3-butadiene, isoprene, 1,3-dimethylbutadiene-1,3, 2-neopentylbutadiene-1,3, chloroprene, 2 Cyanobutadiene-1,3 and mixtures thereof (1,3-butadiene is particularly preferred).
• Examples of ⁇ , ⁇ -monoethylenically unsaturated mono- and dicarboxylic acids (1) include: acrylic acid, methacrylic acid, itaconic, fumaric and maleic acids and monoesters of these dicarboxylic acids with 1 to 8 carbon atoms in the alcohol component, such as e.g. Monoalkyl itaconate, fumarate and maleate.
• Suitable vinyl aromatics (2b) are those in which the vinyl group is bonded directly to a core consisting of 6 to 10 carbon atoms.
• examples include: styrene and substituted styrenes such as 4-methylstyrene, 3-methylstyrene, 2,4-dimethylstyrene, 4-isopropylstyrene, 4-chlorostyrene, 2,4-dichlorostyrene, divinylbenzene, ⁇ -methylstyrene and vinylnaphthalene.
• Styrene is the preferred monomer (2b).
• Up to 25 parts by weight of the monomers (2) can be replaced by one or more copolymerizable monomers, in particular by (meth) acrylic acid alkyl esters, such as, for example, methyl, ethyl, n-propyl, isopropyl, n-butyl, Isobutyl and 2-ethylhexyl (meth) acrylate, mono- and diesters made from alkane diols and ⁇ , ⁇ -monoethylenically unsaturated monocarboxylic acids such as ethylene glycol mono (meth) acrylate, propylene glycol mono (meth) acrylate, ethylene glycol di (meth) acrylate , Butanediol-1,4-di (meth) acrylate, amides ⁇ , ⁇ -monoethylenically unsaturated mono- and dicarboxylic acids such as acrylamide and methacrylamide and their N-methylol compounds and N-
• Monomers bearing sulfonic acid groups such as, for example, styrene sulfonic acid, (meth) allylsulfonic acid or their water-soluble salts, are also suitable.
• Other comonomers that can be used are vinyl esters of carboxylic acids having 1 to 18 carbon atoms, in particular vinyl acetate and vinyl propionate, vinyl chloride and vinylidene chloride, vinyl ethers such as vinyl methyl ether, vinyl ketones such as vinyl ethyl ketone and heterocyclic monovinyl compounds such as vinyl pyridine.
• Polyacrylates A in the context of the invention comprise polymers based on monomers which consist wholly or partly of acrylic and / or methacrylic acid C1-C12 alkyl esters.
• Preferred polyacrylates A have a number average molecular weight of 500 to 2000, preferably 500 to 1600, and hardness (Shore A) of 11 to 99, preferably 20 to 80, in particular 20 to 60.
• Preferred amounts for the individual monomer groups are 10 to 100 wt .-% (a), optionally 0.5 to 20 wt .-% (b), optionally 1 to 30% by weight (c), if appropriate 0 to 60 wt .-% (d) and optionally 0 to 50% by weight (s), the percentages in each case refer to the sum of the monomers polymerized into the polyacrylate A.
• polyurethanes within the meaning of the invention also includes polyurethane ureas and polyureas.
• the polyurethanes A) can be produced in a manner known per se in the melt or - preferably - in an organic solvent.
• polyisocyanates of the formula Q (NCO) 2 can be used, Q being an aliphatic hydrocarbon radical having 4 to 12 carbon atoms, a cycloaliphatic hydrocarbon radical having 6 to 25 carbon atoms, an aromatic hydrocarbon radical having 6 to 15 carbon atoms or one araliphatic hydrocarbon radical having 7 to 15 carbon atoms.
• diisocyanates examples include tetramethylene diisocyanate, hexamethylene diisocyanate, dodecamethylene diisocyanate, 1,4-diisocyanatocyclohexane, 3-isocyanatomethyl-3,3,5-trimethylcyclohexyl isocyanate (Isophorone diisocyanate), 4,4'-diisocyanatodicyclohexylmethane, 4,4'-diisocyanato-3,3'-dimethyldicyclohexylmethane, 4,4'-diisocyanatodicyclohexylpropane- (2,2), 1,4-diisocyanatobenzene, 2,4- or 2,6-diisocyanatotoluene or mixtures of these isomers, 4,4'-, 2,4'- or 2,2'-diisocyanatodiphenylmethane or mixtures of the isomers, 4,4'-
• polyfunctional polyisocyanates known per se in polyurethane chemistry, or else modified polyisocyanates containing, for example, carbodiimide groups, allophanate groups, isocyanurate groups, urethane groups and / or biuret groups.
• the most suitable reaction partners for the polyisocyanates are polyhydroxyl compounds which have 2 to 8, preferably 2 or 3, hydroxyl groups per molecule and have an (average) molecular weight of up to 5,000, preferably up to 2,500. Both low molecular weight polyhydroxyl compounds with molecular weights of 32 to 349 and higher molecular weight polyhydroxy compounds with average molecular weights of at least 350, preferably of at least 1000, are suitable.
• Higher molecular weight polyhydroxyl compounds include the hydroxypolyesters, hydroxypolyethers, hydroxypolythioethers, hydroxypolyacetals, hydroxypolycarbonates and / or hydroxypolyesteramides known per se in polyurethane chemistry, preferably those with average molecular weights from 600 to 4000, particularly preferably those with average molecular weights from 800 to 2500.
• Polycarbonate polyols, polyether polyols and polyester polyols are particularly preferred.
• Components suitable for the construction of the polyurethanes A) for the introduction of polyethylene oxide units include homopolyethylene glycols and hydroxyl-terminated ethylene oxide mixed polyethers (preferably ethylene oxide / propylene oxide mixed ethers) with block or statistical distribution, preferably polyether carbonates and polyether esters based on the above-mentioned homopolyethylene glycols, Ethylene oxide mixed polyethers or their mixtures with other polycarbonate or polyester-forming polyhydroxyl compounds.
• the optimal amount of the polyethylene oxide units in the polyurethane A) depends somewhat on the sequence length and follows the rule that the amount may be somewhat higher for a short sequence length and the amount may be slightly lower for a high sequence length: While for a sequence length of 2 the If the content of the polyurethane A) in these polyethylene oxide units can be, for example, up to 50% by weight, it is advisable to limit the content of the polyurethane A) in these polyethylene oxide units to 20% by weight with a sequence length of more than 20%.
• monofunctional polyethylene oxide alcohols ie ethoxylated monohydric alcohols or ethoxylated phenols
• monofunctional polyethylene oxide alcohols can also be incorporated in the polyurethane A in amounts of 0.2 to 5% by weight, based on polyurethane A.
• the proportion of such monofunctional polyethylene oxide units in polyurethane A should not exceed 30, preferably 20, in particular 10,% by weight, based on the amount of the total polyethylene oxide units installed. The best results can be obtained by completely dispensing with the installation of monofunctional polyethylene oxide units.
• Starting components for the polyurethanes A), which provide polyethylene oxide units, include above all 2 or 3 hydroxyl-containing ethylene oxide polyethers and ethylene oxide / propylene oxide mixed polyethers with a predominant proportion by weight of ethylene oxide units. Pure ethylene oxide polyethers are preferred.
• average molecular weights in the sense of the invention means certain number average molecular weights.
• the compounds which are used in addition to the components which provide polyethylene oxide units can be selected from the compounds which are customary in polyurethane chemistry and are capable of reacting with isocyanate groups.
• polyhydroxyl components which are suitable as polyurethane structural components but do not contain any polyethylene oxide units.
• the suitable polycarbonates containing hydroxyl groups can be obtained by reaction of carbonic acid derivatives, e.g. Diphenyl carbonate or phosgene, available with diols.
• diols are e.g. Ethylene glycol, propanediol 1,2 and 1,3, butanediol 1,4 and 1,3, hexanediol 1,6, octanediol 1,8, neopentyl glycol, 1,4-bishydroxymethylcyclohexane, 2-methyl-1, 3-propanediol, 2,2,4-trimethylpentanediol-1,3, dipropylene glycol, polypropylene glycols, dibutylene glycol, polybutylene glycols, bisphenol A, tetrabromobisphenol A in question.
• the diol component preferably contains 40 to 100% by weight of hexanediol, preferably 1,6-hexanediol, and / or hexanediol derivatives, preferably those which, in addition to terminal OH groups, have ether or ester groups, e.g. Products obtained by reacting 1 mole of hexanediol with at least 1 mole, preferably 1 to 2 moles of caprolactone according to DE-AS 17 70 245, or by etherifying hexanediol with itself to give di- or trihexylene glycol. The preparation of such derivatives is e.g. known from DE-AS 1 570 540.
• the polyether polycarbonate diols described in DE-OS 37 17 060 can also be used very well.
• the hydroxyl polycarbonates are said to be substantially linear. If desired, however, they can easily be branched by incorporating polyfunctional components, in particular low molecular weight polyols.
• polyfunctional components in particular low molecular weight polyols.
• glycerin, trimethylolpropane, 1,2,6-hexanetriol, 1,2,4-butanetriol, trimethylolpropane, pentaerythritol, quinite, mannitol and sorbitol, methylglycoside, 1,4,3,6-dianhydrohexite are suitable for this purpose.
• Suitable polyether polyols are the polyethers known per se in polyurethane chemistry, such as e.g. the addition or mixed addition compounds of tetrahydrofuran, styrene oxide, propylene oxide, butylene oxides or epichlorohydrin, especially propylene oxide, produced using divalent starter molecules such as water, the above-mentioned diols or amines having 2 NH bonds.
• Suitable polyester polyols are, for example, reaction products of polyhydric, preferably dihydric and optionally additionally trihydric alcohols with polyvalent, preferably dihydric, carboxylic acids.
• the corresponding polycarboxylic acid anhydrides or corresponding polycarboxylic acid esters of lower alcohols or mixtures thereof can also be used to produce the polyesters.
• the polycarboxylic acids can be aliphatic, cycloaliphatic, aromatic and / or heterocyclic in nature and optionally substituted, for example by halogen atoms, and / or unsaturated.
• Examples include: Succinic acid, adipic acid, suberic acid, azelaic acid, sebacic acid, phthalic acid, isophthalic acid, trimellitic acid, phthalic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, tetrachlorophthalic anhydride, Endomethylentetrahydrophthalcic Acidanhyrid, glutaric anhydride, maleic acid, maleic anhydride, fumaric acid, dimeric and trimeric fatty acids such as oleic acid, optionally mixed with monomeric fatty acids, terephthalic acid dimethyl ester, Terephthalic acid bis-glycol ester.
• polyhydric alcohols are e.g. Ethylene glycol, propanediol- (1,2) and - (1,3), butanediol- (1,4) and - (2,3), hexanediol- (1,6), octanediol- (1,8), neopentylglycol, Cyclohexanedimethanol (1,4-bis-hydroxymethyl-cyclohexane), 2-methyl-1,3-propanediol, glycerol, trimethylolpropane, hexanetriol- (1,2,6), butanetriol- (1,2,4), trimethylolethane, pentaerythritol , Quinite, mannitol and sorbitol, methyl glycoside, also diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, dibutylene glycol and polybutylene glycol in question.
• Further structural components for the production of the polyurethanes A) are, in particular, chain extenders with molecular weights from 32 to 299 and having 1-4 hydroxyl and / or amino groups.
• polyamines can also be used as chain extenders. These are preferably aliphatic or cycloaliphatic diamines, although trifunctional or higher-functional polyamines can optionally also be used to achieve a certain degree of branching.
• suitable aliphatic polyamines are ethylenediamine, 1,2-propylenediamine and 1,3, tetramethylenediamine-1,4, hexamethylenediamine-1,6, the mixture of isomers of 2,2,4- and 2,4,4-trimethylhexamethylenediamine, 2-methyl-pentamethylenediamine and bis- ( ⁇ -aminoethyl) amine (Diethylene triamine).
• Suitable cycloaliphatic polyamines are: Araliphatic polyamines, such as 1,3- and 1,4-xylylenediamine or ⁇ , ⁇ , ⁇ ', ⁇ '-tetramethyl-1,3- and -1,4-xylylenediamine, can also be used as chain extenders for the preparation of the polyurethanes A ) deploy.
• Hydrazine, hydrazine hydrate and substituted hydrazines such as, for example, are also to be considered as diamines in the sense of the invention
• Ionic groups for the polyurethanes A) include the alkali and ammonium carboxylate and sulfonate groups and ammonium groups.
• Dimethylolpropionic acid ethylenediamine- ⁇ -ethylsulfonic acid, ethylenediamine-propyl- or butylsulfonic acid, 1,2- or 1,3-propylenediamine- ⁇ -ethylsulfonic acid, lysine, 3,5-diaminobenzoic acid and their alkali and / or ammonium salts; the adduct of sodium bisulfite with butene-2-diol-1,4.
• Examples of (potentially) cationic structural components are diols having tertiary amino groups, such as e.g. N-methyl-diethanolamine or their protonation or alkylation products.
• cationic and / or anionic hydrophilic can be used as built-in components for introducing the ionic groups into the polyurethanes
• difunctional structural components such as (potentially) dihydroxyl compounds, diamines or diisocyanates containing ionic groups.
• Suitable polyurethanes A are described for example in DE-PS 22 31 411 and 26 51 506.
• such polyurethanes A are used which contain both built-in polyethoxy groups and ionic groups, these polyurethanes A in particular terminal polyalkylene oxide chains with an ethoxy group content of 0.5 to 10% by weight, based on polyurethane A, and 0 , 1 to 15 milliequivalents of ammonium, sulfonium, carboxylate and / or sulfonate groups per 100 g of polyurethane A.
• Particularly preferred binders A are polyacrylates and polyurethanes and mixtures thereof.
• the additives B (i) include fats, oils and waxes of vegetable, animal and synthetic origin, preferably mixtures of fatty acids and sulfonated fatty acids, such as are produced in the technical sulfonation of triglycerides, claw oil, Turkish red oil, silicone oils, waxes and paraffins with softening points of 30 up to 120 ° C, preferably 40 to 100 ° C.
• the cellulose provided as additive B (ii) is preferably used as a powder.
• the aqueous binder dispersions to be used according to the invention generally contain 10 to 66 parts by weight (A + B) and an amount of water which makes up to 100 parts by weight.
• crosslinking additives which do not react with themselves or the binder A) until the finished coating, as a rule as a result of the action of heat.
• These compounds include (partially) etherified melamine formaldehyde resins, e.g. Hexamethylol melamine, and optionally blocked polyisocyanates with 3 or more isocyanate groups, e.g. based on tris [isocyanatohexyl] isocyanurate and tris [isocyanatohexyl] biuret, polyepoxides and polyaziridines.
• Polyisocyanates suitable as crosslinkers are described, for example, in DE-OS 41 36 618, and polyepoxides suitable as crosslinkers in DE-OS 42 17 716.
• crosslinking agents can generally be used in amounts of up to 10 parts by weight, preferably up to 5 parts by weight, per 100 parts by weight of binder dispersion to be used according to the invention.
• the binders to be used according to the invention can of course also contain colorants such as pigments and / or carbon blacks.
• the pigments can be used in a form customary in textile coating or in leather finishing are, preferably as aqueous binder-containing pigment preparations, as described for example in DE-OS 32 03 817 and 41 12 327. Depending on the desired degree of coverage, 5 to 50, preferably 12 to 25 parts by weight of aqueous pigment preparation can be used per 100 parts by weight of binder dispersion to be used according to the invention.
• coated textile fabrics obtained according to the invention can also be subsequently dyed using known methods.
• the application of the binder dispersions to be used according to the invention can e.g. by pouring, spraying, dipping, with a squeegee or roller or in a foulard.
• the binder is dried after application, preferably at temperatures of 60 to 150 ° C., preferably 80 to 120 ° C.
• the substrate provided with the binder dispersion to be used according to the invention can also be predried to 20 to 50% residual moisture and then a top coat, preferably based on the polyacrylates or polyurethanes described under A, can be applied in a direct or reverse process.
• the textile fabrics coated on one or both sides can be sanded afterwards and are then particularly soft. It can also be advantageous to dry the substrate coated with the binder dispersion to be used according to the invention directly, without intensive predrying, for example with a tenter dryer. Mechanical treatment in a tumbler also increases softness.
• ®Acrafix MF Crosslinker based on N-methylolmethylinelamine from Bayer AG
• Leverkusen ®Arbocol BE 600-30 cellulose powder from Rettenmeier and Sons
• Ellwangen-Holzmühle ®Baygard 40140 Textile auxiliaries based on PU for water and oil repellent finishing from Bayer AG
• Leverkusen ®Baypret UPS auxiliaries for felt-free finishing of wool
• Leverkusen Emulsifier VA Emulsifier based on polyether from Bayer AG
• Leverkusen ®Euderm Grund 25 A 40% aqueous dispersion of a polyacrylate with a Shore A hardness of 25; Manufacturer: Bayer AG, Leverkusen ®Euderm Nappasoft S: aqueous
• a mixture is produced from 50 parts EUDERM Grund 25 A, 50 parts IMPRANIL-Dispersion DLP, 20 parts water and 30 parts EUDERM Nappasoft S, 30 parts ARBOCEL BE 600-30, 2 parts ACRAFIX MF and 1 part MIROX AM of 5600 mPa.s.
• An air knife (2 mm knife spacing) is used to coat a cotton fabric roughened on one side on both sides. Recording: 45 g / qm It is first dried at 80 ° C. for 2 to 3 minutes and then at 150 ° C. for 2 minutes (in order to crosslink).
• Example 1 A sample from the fabric produced in Example 1 was dyed with 2.2% LEVAFIX brilliant red E-4BA at 50 ° C. in the exhaust process. This created a bright red, evenly colored pattern.
• example 2nd 3rd 4th 5 Compare 6 Tle. Tle. Tle. Tle. Tle. IMPRANIL DLV 50 50 50 50 50 EUDERM reason 25A 50 50 50 50 50 50 Arbocel BE 600-30 20th 20th 20th 20th 50 water 20th 20th 20th 0 90 EUDERM Nappasoft S 30th 0 0 0 0 EUDERM Soft FD 7927 0 30th 0 0 0 EUDERM Soft Filler VF 0 0 30th 0 0 PERSOFTAL ASN 0 0 0 60 60 BAYGARD 40140 0 0 0 3rd 3rd Mirox AM; 25% in water + ammonia adjusted to pH 9 3rd 2.5 1 3.5 0 Emulsifier VA, 50% in water 0 0 0 0 3rd Product intake g / qm 114 115 111 108 109
• Substrate cotton fabric roughened on one side: one line each Air knife; 1 dash; Drying 3 minutes / 80 ° C + 2 minutes / 150 ° C; Sanded once with 320 paper Then coat as follows: Top line: IMPRANIL dispersion DLV 700 parts IMPRANIL dispersion DLF 300 parts RESPUMIT 3300 (1: 2 dissolved in toluene) 3 parts EUDERM White D-CG 80 parts EUDERM Red B 50 parts Mirox AM (25% in water with ammonia adjusted to pH 9) 25 parts PERSOFTAL SWA 50 parts
• the coated samples of Examples 2 to 5 were smooth and withstood 100,000 bends in the Bally Flexometer (according to IUP 20).
• Example 12 The pattern of Example 12 was unusable.
• a fabric made of fine polyester fiber was treated as in Example 1. This fabric was given an opaque, soft surface.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Life Sciences & Earth Sciences (AREA)
• Wood Science & Technology (AREA)
• Dispersion Chemistry (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Paints Or Removers (AREA)
• Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
• Laminated Bodies (AREA)

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• 1995
  • 1995-03-09 US US08/401,596 patent/US5518764A/en not_active Expired - Fee Related
  • 1995-03-09 EP EP95103402A patent/EP0674039A3/fr not_active Withdrawn
  • 1995-03-17 JP JP7084464A patent/JPH07292578A/ja active Pending
  • 1995-03-17 CA CA002144905A patent/CA2144905A1/fr not_active Abandoned

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