Printing and dyeing of textiles (inverse resist printing)

US5512061A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Andreas von der Eltz · Frankfurt am Main, DE
• Andreas Schrell · Hofheim, DE
• Werner Russ · Flörsheim, DE

Key dates

• Filing date: Mar 2, 1994
• Grant date: Apr 30, 1996
• Expiry date: Mar 2, 2014

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06P3/66
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A process for printing and dyeing sheetlike fiber materials with anionic dyes comprises PA1 a) first applying to the sheetlike fiber material an aqueous solution containing a fixing alkali and a compound which contains a primary, secondary or tertiary amino group or a quaternary ammonium group, which may each also be part of a heterocycle, by using a printing process, then PA1 b) subjecting the sheetlike fiber material to a fixing treatment to modify the sheetlike fiber material, and finally and optionally PA1 c) dyeing the modified sheetlike fiber material one or more times by a customary exhaust or padding method.