Multi-color transfer printing medium

Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Plural colors or plural diverse systems

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Details

430138, 503209, 503215, B41M 522, B03C 172

Patent

active

049818341

ABSTRACT:
A multi-color transfer printing medium is comprised of at least two different kinds of microcapsules having a porous membrane and disposed on a substrate. Each kind of microcapsules contains a different electron-donating chromogenic material effective to produce a different color tone, and a different light-absorbing material effective to absorb a light of different wavelength. In use, the multi-color transfer printing medium is superposed with a color developing sheet coated with electron-accepting material, and is irradiated with lights of different wavelengths to transfer-print color image on the developing sheet to thereby obtain the multi-color image with a simple process at high speed.

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patent: 4501809 (1985-02-01), Hiraishi et al.
patent: 4529992 (1985-07-01), Ishida et al.
patent: 4576891 (1986-03-01), Adair et al.
patent: 4644376 (1987-02-01), Usami et al.
patent: 4758495 (1988-07-01), Yamaguchi et al.
patent: 4760048 (1988-07-01), Kurihara et al.

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