Indonaphthol dyes and thermal transfer thereof

US5312926A · kind A · utility

Assignee

• BASF SE

Inventors

• Volker Bach · Neustadt, DE
• Karl-Heinz Etzbach · Bischofswerda, DE
• Ruediger Sens · Mannheim, DE

Key dates

• Filing date: Mar 29, 1991
• Grant date: May 17, 1994
• Expiry date: Mar 29, 2011

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41M5/39
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Indonaphthol thermal transfer dyes have the formula ##STR1## where X is nitrogen or the radical CH, PA0 R.sup.1 and R.sup.2 are each independently of the other C.sub.1 -C.sub.6 -alkyl, which may be substituted, C.sub.1 -C.sub.6 -monooxaalkyl or -dioxaalkyl or allyl, PA0 R.sup.3 and R.sup.4 are each independently of the other hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkanoylamino, and PA0 R.sup.5 is five-membered hetaryl which is not benzofused and has two or more hetero atoms, with the proviso that R.sup.1 and R.sup.2 are not both unsubstituted C.sub.1 -C.sub.6 -alkyl at one and the same time.