Image formation method and apparatus using light and pressure se

Details Image formation method and apparatus using light and pressure se Image formation method and apparatus using light and pressure se

1988-07-12

1990-04-24

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

354301, G03C 172

Patent

active

049200267

ABSTRACT:
A light-accepting sheet with a transparent colorless base sheet coated with microcapsules encapsulating a colorless dye and a photopolymerizing agent which hardens upon exposure to light and an image transfer sheet coated with a developing agent having a chromogenic effect on this colorless dye are superposed together before exposed to an image forming beam of light. The microcapsules are selectable hardened to form an invisible image which turns into a visible image when the superposed sheets are pressed together to rupture only those of the microcapsules which were not hardened. The light-accepting sheet and image transfer sheet may be superposed from the beginning to be stored and delivered to be exposed together as a combined light and pressure sensitive image formation sheet.

REFERENCES:
patent: 4399209 (1983-08-01), Sanders et al.
patent: 4624560 (1986-11-01), Beery
patent: 4816873 (1989-03-01), Hatta
patent: 4826751 (1989-05-01), Hatta

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