Radiation imagery chemistry: process – composition – or product th – Silver halide colloid tanning process – composition – or product
Patent
1990-09-24
1991-10-29
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Silver halide colloid tanning process, composition, or product
430523, 430531, 430539, 430950, 430961, 430606, G03C 136, G03C 102
Patent
active
050615955
ABSTRACT:
A high-contrast room-light-handleable black-and-white silver halide photographic film especially adapted for use as a dry-dot-etchable contact film in the graphic arts is comprised of a support having in order on one side thereof (1) a radiation-sensitive layer comprising silver halide grains, a hydrophilic colloid and a polymer latex, (2) an interlayer comprising a hydrophilic colloid and a polymer latex, and (3) an overcoat layer comprising a hydrophilic colloid, a matting agent and a light-scattering agent, wherein the interlayer has a refracive index in the range of from about 1.4 to about 1.7 and a thickness which is in the range of from about 0.5 to about 5 microns and is at least twice that of the overcoat layer. The combination of the light-scattering agent in the overcoat layer and the thick interlayer facilitates optical spreading of the image during contact exposure, and thereby enhances the performance of the contact film in use with multi-layer originals and in processes of dry dot etching.
REFERENCES:
patent: 4232117 (1980-03-01), Naoi et al.
patent: 4343873 (1982-04-01), Sasaoka
patent: 4777113 (1988-08-01), Inoue et al.
patent: 4818659 (1989-11-01), Takahashi et al.
patent: 4847180 (1989-07-01), Miyata et al.
patent: 4855219 (1989-01-01), Bagchi et al.
patent: 4914012 (1990-03-01), Kawai
patent: 4933272 (1990-06-01), McDugle et al.
Gingello Anthony D.
Jennings David F.
Lucitte Richard D.
Rocha Hermano P.
Eastman Kodak Company
Lorenzo Alfred P.
Schilling Richard L.
LandOfFree
Contact film for use in graphic arts with two overcoat layers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Contact film for use in graphic arts with two overcoat layers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Contact film for use in graphic arts with two overcoat layers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1399941