Transfer printing process with naphtholactam dyes

US4203722A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Alfred Brack · Odenthal, DE
• Hans-Peter Kuhlthau

Key dates

• Filing date: Oct 18, 1978
• Grant date: May 20, 1980
• Expiry date: Oct 18, 1998

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06P5/006
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Acid-modified fibre materials may be dyed in brilliant color shades in accordance with the transfer printing principle if dyestuffs of the formula ##STR1## are used in which A is a residue of the formula ##STR2## wherein R.sub.1, R.sub.3, R.sub.4, R.sub.6 -R.sub.9 are H or lower alkyl, R and R.sub.2 are lower alkyl and R.sub.5 is phenyl. The resulting transfer prints are distinguished by good fastness to light, wet processing and rubbing.