Basf Aktiengesellschaft

Siegfried Schneider

Rolf Fikentscher

Michele Vescia

Sigismund Heimann

Heinrich Mertens

Erhard Klahr

Friedrich Reinert

Ulrich Baumgarte

Gunter Eckert

Adolf Stuebinger

Reactive dyeings on textile materials containing cellulose fibers are aftertreated with aqueous solutions of benzylated resins which are obtainable

Aftertreatment of reactive dyeings on cellulose fibers

Dyeings with reactive dyes on cellulose fiber materials are after-treated with an aqueous solution of a condensate which is obtainable by reacting (a) bisbenzylpiperzine with (b) ethylene chloride, an epihalohydrin, propylene chloride, 1,3-dichloro-2-hydroxypropane, bisepoxybutane or 1,4-dichlorobutane or a mixture of these, in a molar ratio of from 1:0.5 to 1:1.1, or by reacting (c) piperazine, bis-1,4-aminopropylpiperazine, 1-aminoethylpiperazine, 2-hydroxyethylpiperazine or 1-methylpiperazine, or a mixture of these, with a compound according to (b) in a molar ratio of from 1:0.5 to 1:1.1 and benzylating the condensate, the benzylation being carried out using 0.15-1.0 mole of benzyl chloride per equivalent of nitrogen in component (c). The cellulose fiber materials after-treated in this manner possess very good wetfastness.

After-treatment of dyeings with reactive dyes on cellulose fiber

.beta.-N-aziridinopropionates of relatively high boiling alcohols or polyalcohols are prepared by transesterifying a .beta.-N-aziridinopropionate of a lower alcohol of 1 to 4 carbon atoms with a relatively high boiling alcohol or polyalcohol by a process in which the transesterification is carried out in the presence of, as a transesterification catalyst, a titanium(IV) or tin(IV) compound which is soluble in an organic medium.

Preparation of .beta.-N-aziridinopropionates

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Ludwigshafen, Germany

Siegfried Schneider