Pressure-sensitive record materials

Details Pressure-sensitive record materials Pressure-sensitive record materials

1998-03-23

2000-06-06

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Identified solvent or dispersant for color-former, other...

106 3121, 106 3122, 427150, 427151, 503215, 503218, 503221, B41M 5145

Patent

active

060718528

ABSTRACT:
An internal phase solution for a coating of rupturable material for application to a base sheet to form a pressure-sensitive record material comprises one or more color-formers of which at least 90% are monoamino and/or diamino fluoran derivatives dissolved in a solvent comprising 80% to 100% of one or more vegetable and/or animal oils. Preferably the color-formers comprise only monoamino and/or diamino fluoran derivatives and the solvent comprises only one or more vegetable and/or animal oils. Dissolution of the color-formers in the solvent may be place at a temperature in the range 100.degree. C. to 135.degree. C. and micro-capsules containing such color-former solution may be formed by conventional coacervation processes below 70.degree. centigrade.

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