Pressure-sensitive recording paper and color developer therefor

Details Pressure-sensitive recording paper and color developer therefor Pressure-sensitive recording paper and color developer therefor

1989-09-19

1991-05-07

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

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

Identified electron acceptor

106 21, 427150, 428342, 502 81, 503219, B41M 516, B41M 522

Patent

active

050137093

ABSTRACT:
Disclosed is a color developer for a pressure-sensitive recording paper, which comprises an acid-treated smectite clay mineral having a specific chemical composition, an X-ray diffraction pattern peculiar to dioctahedral smectite, a specific solid NMR spectrum and a specific cation exchange capacity. This color developer shows a high whiteness, a high initial color density, excellent light resistance and weatherability, and a low viscosity.

REFERENCES:
patent: 4405371 (1983-09-01), Sugahara et al.

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