Patent · US Expired

Process and device for the irregular dyeing of textiles

US3966400A · kind A · utility

10Cited by

6References

6Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Walter Birke · Frankfurt am Main, DE
Hans-Ulrich von der Eltz · Frankfurt am Main, DE
Franz Schon · Frankfurt am Main, DE

Key dates

Filing date	Aug 22, 1974
Grant date	Jun 29, 1976
Priority date	—
Expiry date	Aug 22, 1994

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06P1/6735
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Process for the irregular dyeing of textile material, preferably in a continuous operation, by applying a mixture of dyestuffs and salts containing crystal water in powder form irregularly onto the material and melting the salt by means of a heat treatment, the bondage between the dyestuff and the material to be dyed being brought about by means of the liquid phase which forms thereby, and then finishing the dyeing in the usual manner according to known methods for the fixation of the dyestuffs used.

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