Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified backing or protective layer containing
Patent
1984-02-06
1986-01-14
Brammer, Jack P.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified backing or protective layer containing
430271, 430275, 430945, G03C 182
Patent
active
045645892
ABSTRACT:
An image-forming composite image member and subtractive photo process employing that composite, in which composite, a spectrally reflective light-blocking layer, a secondary thin optically functional layer and a subtractive photosensitive layer are carried on a base in an association, in which the reflective layer and the secondary layer cooperate after imagewise exposure and development to define an image member in which the secondary layer and reflector layer may provide a guide to orientation of the composite and may provide a unique polarity-reversing ability to display both a negative and a positive image. In a preferred form, the reflective and secondary layers provide superior uniform light-blocking with a minimum combined thickness, and also cooperate in the photo process during the development to insure rapid and complete clearing of areas with at most minimal mechanical action under portions of the photosensitive layer which are soluble after imagewise exposure and have been removed in development.
REFERENCES:
patent: 3625696 (1971-12-01), Kraveh et al.
patent: 3639185 (1972-02-01), Colom et al.
patent: 4113494 (1978-09-01), Hallman
patent: 4218689 (1980-08-01), Bloom et al.
patent: 4292392 (1981-09-01), Ikeda et al.
patent: 4300143 (1981-11-01), Bell et al.
patent: 4329697 (1982-05-01), Bell
patent: 4355099 (1982-10-01), Trautweiler
patent: 4394661 (1983-07-01), Peeters
Article entitled "New Venture for Sage Technology" in Dec. 1981, issue of Technology Watch.
Hallman Robert W.
Langlais Eugene L.
Warner Patrick G.
Advanced Imaging Systems Ltd.
Becker Stanley A.
Brammer Jack P.
McClain James W.
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