Process for producing photographic supports by electron beam exposure
US4579815A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1984 |
| Grant date | Apr 1, 1986 |
| Priority date | — |
| Expiry date | Sep 5, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/81
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for producing a photographic paper is described, comprising coating a composition containing an unsaturated organic compound capable of being polymerized by irradiation with electron beams and an inorganic white pigment on the surface of a web support, and, after hardening the coated layer by irradiation with electron beams, coating thereon a photographic emulsion, wherein the improvement comprises performing the irradiation with electron beams while pressing the web support on a roll having a curvature radius of from 25 cm to 250 cm with the coated layer with said layer in a convexly curled state, and coating the photosensitive emulsion on the convexly curled surface of the web support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.