Developer compositions having reduced yellowing

Details Developer compositions having reduced yellowing Developer compositions having reduced yellowing

1988-04-22

1990-05-01

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

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

Method of use, kit, or combined with marking instrument or...

430138, 430211, 430235, 430933, 503209, 503210, 503211, 503212, 503216, 503225, B41M 522, G03C 168, G03C 554

Patent

active

049218328

ABSTRACT:
The present invention provides a developer sheet useful in forming reproductions having a controllable gloss finish and reduced photolytic yellowing. The developer sheet comprises a support having a layer of a finely divided, thermoplastic, phenolic developer material and an anti-yellowing agent on the surface thereof. The phenolic developer material is capable of reacting with a color former to produce a visible image and is capable of coalescing into a thin film which imparts gloss to the image upon the application of heat.

REFERENCES:
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patent: 4170483 (1979-10-01), Shackle et al.
patent: 4260179 (1981-04-01), Yamaguch et al.
patent: 4262938 (1981-04-01), Yamaguch et al.
patent: 4296948 (1981-10-01), Satoh et al.
patent: 4379721 (1983-04-01), Qualitz et al.
patent: 4400437 (1983-08-01), Oeda
patent: 4400492 (1983-08-01), Asano et al.
patent: 4482378 (1984-11-01), Riou et al.
patent: 4511909 (1985-04-01), Arai
patent: 4550329 (1985-10-01), Gonda et al.
patent: 4663642 (1987-05-01), Kameda et al.

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