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US 4,787,910 AGranted
Condensation products and processes for the after-treatment of dyed polyamides
AssigneeBayer Aktiengesellschaft
InventorsUdo Hendricks, Ergun Tamer
Life of this patent
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Abstract
Condensation products of alkylenediamines of the formula H.sub.2 N--C.sub.n H.sub.2n --NH.sub.2 I, in which n represents 4-10, and an epihalogenohydrin or 1,3-dihalogeno-2-hydroxypropane are used for the after-treatment of natural and synthentic fibre materials which are dyed with anionic dyestuffs and contain polyamide groups.
Claims6
Process for the after-treatment of fiber materials dyed with anionic dyestuffs and containing polyamide groups, wherein the dyed fiber materials are treated with an aqueous solution of a condensation product of an alkylenediamine of the formula
- H.sub.2 N--C.sub.n H.sub.2n --NH.sub.2
- in which
- n represents 4-10, with an epihalogenohydrin or 1,3-dihalogeno-2-hydroxypropane.
Dependencies are inferred from the claim text.