Bayer Aktiengesellschaft

Herbert Wigger

Helmut Reiff

Hans-Josef Laas

Jurgen Reiners

Klaus Schubert

Fritz Puchner

Karl-Heinz Passon

Roger Nyssen

Matthias Gehling

Josef Leitermann

Harro Tr Aubel

Erhard Schuffenhauer

Achim Brand

Karlheinz Wieser

Aqueous pigment preparations

The present invention relates to a method for textile printing with aqueous dispersions in which an organic fixing agent is crosslinked with a blocked polyisocyanate having (i) an average molecular weight of about 800 to about 25,000, (ii) a content of blocked isocyanate groups, calculated as free NCO and based on non-blocked polyisocyanate, corresponding to an NCO content of about 5 to about 20% by weight, (iii) an ionic group content of about 1 to about 75 milliequivalents per 100 g of blocked polyisocyanate, and (iv) a content of polyalkylene oxide units of about 1 to about 20% by weight, based on blocked polyisocyanate, said blocked polyisocyanate being obtained by the reaction of

Crosslinking agents for textile printing fixing agents

The present invention relates to textile printing pastes containing modified polyisocyanates, modified polycarbodiimides, or trifunctional polyepoxides as crosslinking agents for the binders present therein.

Crosslinking agents for textile printing binders

Water-soluble crosslinkable compounds obtainable by reaction of reactive products which contain halogenohydrin groups and have been obtained by reacting polyamines and epihalogenohydrin or 1,3-dihalogeno-2-hydroxy-propane with inorganic bases and subsequently reacting the resulting products with inorganic acids and/or organic acids, can be used as pigment binders and/or crosslinking agents in textile printing pastes.

Pigment printing on fibre materials

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Leverkusen, Germany

Herbert Wigger