Basf Aktiengesellschaft

Attila Bereck

Matthias Kummer

Michele Vescia

Sigismund Heimann

Klaus Flory

Ingrid Steenken

Hermann Sulz

Aqueous solutions of N-methylol compounds of carboxamides, urethanes, ureas and aminotriazines or of N-methylol ethers of these compounds that are suitable for finishing cellulose-containing textile materials are prepared by reaction of compounds having one or more N--H groups in aqueous solution with formaldehyde and, in the case of N-methylol ethers, with an alcohol by adding boron trifluoride, a boron trifluoride addition compound or tetrafluoroboric acid or a salt thereof to the aqueous solutions during or immediately after the reaction.

Preparation of aqueous solutions suitable for finishing cellulose

Textile materials made of natural or synthetic polyamides or mixtures thereof are dyed in the presence of a cyclic ester of sulfurous acid with an aliphatic 1,2-diol in place of a customary pH regulant.

Use of cyclic esters of sulfurous acid in the dyeing of polyamide

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Wermelskirchen, Germany

Attila Bereck