Claims
- 1. A process for printing textiles, comprising the steps of:
- (i) printing a textile material with a print paste, by transferring said print paste to the textile material from a printing means, said print paste consisting essentially of:
- (a) 3-35 wt. % of a binder, said binder consisting essentially of a 15-55% solids by weight aqueous dispersion or solution of a polymer which is film-forming at least under fixing conditions of from 100.degree.-200.degree. C., wherein said polymer comprises from 0.3-12 wt. % of a monomer unit containing one or more groups which are reactive toward isocyanate, said groups being selected from the group consistng of hydroxyl, carbonyl, carboxamide, NH and NH.sub.2 groups,
- (b) from 0.01-40 wt. % of a pigment.
- (c) from 0.55-16 wt. % of a thickener or from 50-70 wt. % of gasoline,
- (d) a cross-linking agent in the form of a stable dispersion in a liquid dispersion medium, comprising form 0.1-6 wt. % of a finely divided solid polyisocyanate having a melting point above 40.degree. C. and a particle size from 0.1-15 micron, and wherein the particle surfaces have deactivated by reacting the isocyanate groups present on said particles with compounds which are reactive toward isocyanate groups,
- (e) from 0-10 wt.% of conventional additives, and
- (f) the balance water up to 100 wt. %; and
- (ii) drying the textile material and fixing said paste at about 100.degree. C. or above.
- 2. The process of claim 1, wherein said crosslinking agent is a dispersion containing from 5-60 wt. % of a polyisocyanate in aliphatic or aromatic hydrocarbons which are liquid at 20.degree. C.
- 3. The process of claim 1, wherein said crosslinking agent is a dispersion containing from 5-60 wt. % of a polyisocyanate in liquid paraffin.
- 4. The process of claim 1, wherein said crosslinking agent is a dispersion containing from 5-70% by weight of a polyisocyanate in water.
- 5. The process of claim 1, wherein said polyisocyanate is a diisocyanate containing uretdione groups.
- 6. The process of claim 1, wherein said polyisocyanate is toluylene diisocyanate which is dimerized via uretdione groups.
- 7. The process of claim 1, wherein said polyisocyanate is selected from the group consisting of naphthalene-1,5-diisocyanate; 3,3'-diisocyanato-4,4'-dimethyl-N,N'-diphenylurea; dimeric 1-methyl-2,4-diisocyanatobenzene; dimeric 4,4'-diisocynatodiphenylmethane and 3,3'-dimethyl-4,4'-diisocyanatodiphenyl.
- 8. The method of claim 1, wherein said polyisocyanate is selected from the group consisting of p-xylylene diisocyanate, 1,5-diisocyanatomethylnaphthalene, 1,3-phenylene diisocyanate,1,4-phenylene diisocyanate, 1-methylbenzene 2,5-diisocyanate, 1,3-dimethylbenzene 4,6-diisocyanate, 1,4-dimethylbenzene 2,5-diisocyanate, 1-nitrobenzene 2,5-diisocyanate, 1,4-dichlorobenzene 2,5-diisocyanate, 1-methoxybenzene 2,4-diisocyanate, 1-methoxybenzene, 2,5-diisocyanate, 1,3-dimethoxybenzene 4,6-diisocyanate, azobenzene 4,4'-diisocyanate, diphenyl ether 4,4'-diisocyanate, diphenylmethane 4,4'-diisocyanate, diphenyldimethylmethane 4,4'-diisocyanate, naphthalene 1,5-diisocyanate, 3,3'-dimethylbiphenyl 4,4'-diisocyanate, diphenyldisulfide 4,4'-diisocyanate, diphenylsulfone 4,4'-diisocyanate, 1-methylbenzene 2,4,6-triisocyanate, 1,3,5-trimethylbenzene 2,4,6-triisocyanate, triphenylmethane 4,4',4"-triisocyanate, 1,2-(4,4,'-diisocyanatodiphenyl)-ethane, dimeric 1-methyl-2,4-phenylene diisocyanate, dimeric 1-isopropyl -2,4-phenylene diisocyate, dimeric 1-chloro-2,4-phenylene diisocyanate, dimeric 2,4'-diisocyanatodiphenyl sulfide, dimeric diphenylmethane 4,4'-diisocyanate, 3,3'-diisocyanato-4,4'-dimethyl-N,N'-diphenylurea, N,N'-bis[4-(4-isocyanatophenylmethyl)-phenyl]-urea, and N,N'-bis[4-(2-isocyanatophenylmethyl)-phenyl]-urea.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3529530 |
Aug 1985 |
DEX |
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Parent Case Info
This is a continuation of application Ser. No. 893,269, filed Aug. 5, 1986, now abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (2)
Number |
Date |
Country |
3109978 |
Jan 1982 |
DEX |
3313237 |
Oct 1984 |
DEX |
Continuations (1)
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Number |
Date |
Country |
Parent |
893269 |
Aug 1986 |
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