Transfer printing process

US4059402A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Gerhard Wolfrum · Waldershof, DE
• Werner Kuhnel · Uttenreuth, DE
• Erich Klauke
• Gerhard Buttner

Key dates

• Filing date: Jun 1, 1976
• Grant date: Nov 22, 1977
• Expiry date: Jun 1, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B29/0805
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to the transfer printing hydrophobic fibre materials using paper supports which are printed with azo dyestuffs of the formula ##STR1## wherein X.sub.1 and X.sub.2 represent hydrogen or alkyl or cycloalkyl radicals and PA1 n represents 1-3, and wherein the benzene ring A can contain non-ionic substituents and the benzene ring B can contain customary non-polar substituents.