Patent · US Expired

Process for the continuous dyeing of textile webs pre-heated with infra-red or micro-waves

US4242091A · kind A · utility

6Cited by

3References

7Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Erich Feess · Hofheim, DE
Walter Birke · Frankfurt am Main, DE
Joachim Steinbach · Frankfurt, DE

Key dates

Filing date	Dec 14, 1979
Grant date	Dec 30, 1980
Priority date	—
Expiry date	Dec 14, 1999

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06P5/2083
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Process for the continuous dyeing of textile webs made from cellulose fibers or wool, or mixtures containing such fibers, with reactive or sulfur dyestuffs in reduced form, or with reactive or acid dyestuffs, which comprises preheating the textile material to temperatures of from 97.degree. to 104.degree. C. by means of IR radiators or microwaves while maintaining a residual moisture corresponding at least to the water retention amount (normal humidity) of the fibers, and subsequently treating it with steam for 10 to 300 seconds without applying additional pressure, in order to fix the dyestuffs.

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