Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Spatial relationship specified between color-former and...
Patent
1993-02-25
1994-05-03
Schwartz, Pamela R.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Spatial relationship specified between color-former and...
427152, 503200, 503207, 503208, B41M 540
Patent
active
053088247
ABSTRACT:
The invention provides a recording material inhibited from alteration which comprises a substrate, an undercoat layer containing a white or light colored inorganic fluorescent pigment having an emission maximum wavelength of 400-700 nm and provided on one side of the substrate, and a recording layer provided on said undercoat layer. The recording layer may be a heat-sensitive layer or a pressure-sensitive layer. A magnetic recording layer comprising ferromagnetic powders may be provided on another side of the substrate.
REFERENCES:
patent: 4950638 (1990-08-01), Yuyama et al.
Matsushita Toshihiko
Morishita Sadao
Mitsubishi Paper Mills Limited
Schwartz Pamela R.
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