Patent · US Expired

Process for the level dyeing of synthetic fiber materials

US4101274A · kind A · utility

10Cited by

6References

17Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Helmut Beutler · Kelkheim, DE
Friedrich Engelhardt · Frankfurt, DE
Karl Hintermeier · Frankfurt am Main, DE
Joachim Ribka · Offenbach am Main, DE

Key dates

Filing date	Feb 24, 1976
Grant date	Jul 18, 1978
Priority date	—
Expiry date	Feb 24, 1996

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06P1/5271
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Process for the even dyeing of synthetic fiber materials and mixtures thereof with natural fibers with water-insoluble disperse dyes according to the exhaustion method, which comprises adding to the dyebath as levelling agents linear water-soluble, or dispersible polyesters containing sulfo groups.

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