Patent · US Expired

Process for dyeing naturally occurring or synthetic polyamide fibres

US5540739A · kind A · utility

2Cited by

11References

16Claims

0Family size

Assignee

Ciba-Geigy · US

Inventors

Klaus Hannemann · Lörrach, DE
Franz Gruner · Schopfheim, DE
Martin Jollenbeck · Müllheim, DE
Jorg Binz · Reinach, CH

Key dates

Filing date	Jul 13, 1994
Grant date	Jul 30, 1996
Priority date	—
Expiry date	Jul 13, 2014

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06P1/647
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A process for dyeing textile materials of naturally occurring and synthetic polyamide fibres, in which dyeing is carried out at the boiling point of the dyebath during a short dyeing time which is therefore gentle on the fibres, and level dyeings having good fastness properties are obtained (high temperature rapid dyeing process). The dyeing process is carried out with dyebaths with comprise specific surfactants. A high degree of exhaustion of the dye liquors is achieved, and dyeing from static baths is thus rendered possible.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.