Title:
COLORING MATTER FORMING BODY MIXTURE AND PRESSURE SENSITIVE RECORDING MATERIAL
Document Type and Number:
Japanese Patent JPS61204275
Kind Code:
A
Abstract:
Mixtures of dye precursors which contain (a) the lactone of 2-carboxy-4,4'-bisdimethylaminobenzhydrol (I) and (b) crystal violet lactone and/or one or more fluoran lactones of the formula (II) where R1 is alkyl, R2 is alkyl, phenalkyl, unsubstituted or substituted phenyl or cycloalkyl, or is pyrrolidinyl, piperidinyl or morpholinyl, R3 is H or tert.-butyl, R4 is H or methyl, R5 is H, alkyl or phenalkyl and R6 is H, alkyl, phenalkyl, cycloalkyl or unsubstituted or substituted phenyl, or is pyrrolidinyl, piperidinyl or morpholinyl, possess improved lightfastness in pressure-sensitive recording systems.
Inventors:
RAINAA DEIRITSUKU BURENTSUINGA
UDOO MAIYAA
ANDOREASU OOBERURINNAA
UDOO MAIYAA
ANDOREASU OOBERURINNAA
Application Number:
JP4053486A
Publication Date:
September 10, 1986
Filing Date:
February 27, 1986
Export Citation:
Assignee:
BASF AG
International Classes:
B41M5/145; C09B67/22; (IPC1-7): B41M5/12; C09B67/22
Attorney, Agent or Firm:
Masao Kobayashi