Radiation imagery chemistry: process – composition – or product th – Microcapsule – process – composition – or product
Patent
1985-04-26
1989-04-18
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Microcapsule, process, composition, or product
430211, 430345, 430962, 430235, 42840221, 42840222, 42840224, G03C 172, G03C 516
Patent
active
048227145
ABSTRACT:
A transfer imaging system is disclosed wherein images are formed by image-wise exposing a layer comprising a chromogenic material and pressure rupturable capsules containing, as an internal phase, a photosensitive composition. In a preferred embodiment, the chromogenic material is encapsulated with the photosensitive composition. Upon exposure and capsule rupture the chromogenic material is image-wise transferrable to a developer or copy sheet where the chromogenic material reacts with a developer to form an image. Preferred systems are sensitive to U.V. or blue light in the wavelength range of 380 to 480 nm.
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"What's Ahead?", by Lloyd E. Varden, Modern Photography, p. 86, 1958.
Hamilton Cynthia
Michl Paul R.
The Mead Corporation
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