Heat-sensitive record material

Details Heat-sensitive record material Heat-sensitive record material

1988-08-16

1990-08-14

Schwartz, Pamela R.

Record receiver having plural interactive leaves or a colorless

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

Having nonreactant particles of defined size

427152, 503200, 503226, B41M 518

Patent

active

049487752

ABSTRACT:
A heat-sensitive record material has a protective layer on the recording layer which is formed on a base sheet and which comprises a color forming material and a color developing material in the state of that they are contacted by heating to produce color images. The protective layer comprises a water-soluble high polymer and a polyethylene wax having an average particle size of 3 to 10 .mu.m. The protective layer comprising the granular polyethylene wax in an amount of 0.1 to 30 parts by weight per 100 parts by weight of the solid amount of the protective layer improves the property of the heat-sensitive record material, particularly the sliding property and the retainability of recorded images without accompanying either lowering the initial color density of recorded images or sticking.

REFERENCES:
patent: 3988501 (1976-10-01), Knirsch et al.
patent: 4032690 (1977-06-01), Kohmura et al.
patent: 4370370 (1983-01-01), Iwata et al.
patent: 4554566 (1985-11-01), Yoneda et al.

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