Patent · US Expired

Process for dyeing and printing cellulose fibres

US4277245A · kind A · utility

0Cited by

5References

3Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Manfred Groll · Leverkusen, DE
Werner Kuhnel · Uttenreuth, DE
Robert Kuth · Cologne, DE

Key dates

Filing date	Feb 22, 1980
Grant date	Jul 7, 1981
Priority date	—
Expiry date	Feb 22, 2000

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06P3/6041
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

In order to dye and print cellulose fibres swollen with water-miscible swelling agents or fibre blends containing these fibres, the fibres are treated with a dyestuff of the general formula ##STR1## wherein Pc denotes the radical of a Cu phthalocyanine, PA1 Ni phthalocyanine or Co phthalocyanine molecule, PA1 Ar denotes aryl, PA1 Z.sup.(+) denotes a hydrogen ion, an alkali metal ion or an ammonium ion, PA1 Hal denotes chlorine or bromine, PA1 x denotes a number from 2 to 4, PA1 y denotes 0 or 1 and PA1 x+y.ltoreq.4, and PA1 z denotes a number from 0 to 4, and the dyestuff is fixed by heat treatment.

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