Patent · US Expired

Process for heat fixation of dyestuffs using polyester material as filter for circulating air stream

US3955226A · kind A · utility

4Cited by

3References

2Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Erich Feess · Hofheim, DE
Gunther Trapp
Heinz Fleissner

Key dates

Filing date	Feb 12, 1974
Grant date	May 11, 1976
Priority date	—
Expiry date	Feb 12, 1994

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S68/903
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Process for the heat fixation of dyestuffs on textile flat articles using a steamer with directional air or vapor stream wherein the circulating air or vapor stream is purified from dyestuff particles by intercalating a filter.

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