Ciba Specialty Chemicals Corporation

Huntsman International LLC

Claudius Brinkmann

Martin Jollenbeck

Hans-Jorg Peter

Serge Charles Garing

Alex K&auml;nzig

Alfred Keller

An adjuvant composition comprising (A) a C-Ccarboxylic acid ester of a polyhydroxy compound containing from 2 to 20 hydroxyl groups and (B) an N-heterocyclic compound having a pK, value of from 6 to 8 is storage-stable and suitable as an acid donor in the dyeing of polyamides.

Acid donors for dyeing polyamide

This invention relates to a process for printing hydrophobic fiber materials with disperse dyes, which comprises 1) dyeing or printing the fiber materials overall with a disperse dye, and 2) printing the fiber materials in areas with a printing paste, which comprises as component (A), at least one cationic assistant, as component (B), at least one polyethylene glycol, as component (C), at least one nonionogenic detergent and, optionally, as component (D), at least one disperse dye, it being possible for steps 1) and 2) to be carried out in any sequence and for step 2) to be carried out repeatedly without using any dye, or using different dyes, and, if necessary, drying the fiber material thus treated and then fixing the dye on the fiber material by heat treatment. The novel process affords multicolored prints having sharp contours and very good fastness to hot light.

Resist printing on hydrophobic fiber materials

This invention relates to the use of tannin for improving the ozone fastness of dyed and undyed polyamide-containing material, which comprises applying tannin to, or incorporating it into, the polyamide-containing material.

Ozone stability of dyed and undyed polyamide-containing material

The present invention relates to the use of a modified fatty amine of formula

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Lorrach, Germany

Claudius Brinkmann