Spray development of photosensitive plates

Details Spray development of photosensitive plates Spray development of photosensitive plates

2006-10-27

2008-10-28

Perkey, W. B. (Department: 2862)

Photography

Fluid-treating apparatus

Fluid application to one side only of photographic medium

C101S463100

Reexamination Certificate

active

07441968

ABSTRACT:
Excellent development of photosensitive coatings on planographic printing plates is achieved by directing a dynamic flow of fresh alkaline developer solution that impinges on a target area of the coating extending the width of the plate and floods the target area with a turbulent flow. At sufficient volumetric flow rate, the developer solution at the target area is constantly displaced during the development time, whereby no boundary layer forms on and travels with the plate during the development time and thus the target area is always in contact with fresh developer solution.

REFERENCES:
patent: 3752054 (1973-08-01), Scanlan
patent: 3846816 (1974-11-01), Gaisser
patent: 4145135 (1979-03-01), Sara
patent: 7013806 (2006-03-01), Fromson et al.
patent: 2003/0072575 (2003-04-01), Fromson et al.
patent: 2005/0066830 (2005-03-01), Miyagawa et al.

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