发明名称 Photographic element with a microvoided support
摘要 <p>A photographic element comprising a paper base with a thickness from 0.025 mm to 0.25 mm, at least one photosensitive silver halide layer, and a layer of microvoided and biaxially oriented polyolefin sheet having a layer thickness of 0.020 mm to 0.050 mm, a density of between 78% and 100% of the solid polymer density located between said paper base and said at least one photosensitive silver halide layer, and wherein the entire photographic element is substantially free from surface distortion or cracking when the photographic element is forced to the shape of a diameter of no less than 8.0 mm. The back of the base may have an oriented polypropylene sheet and the base and the two sheets are laminated to form a support. A copy restrictive pattern of microdots may be placed between the silver halide layer and the microvoided sheet. A laminated support of the microvoided sheet, paper base and a biaxially oriented film is also disclosed.</p>
申请公布号 GB2325750(A) 申请公布日期 1998.12.02
申请号 GB19980010313 申请日期 1998.05.14
申请人 * EASTMAN KODAK COMPANY 发明人 THADDEUS STEPHEN * GULA;PETER THOMAS * AYLWARD;ROBERT PAUL * BOURDELAIS;DOUGLAS NORMAN * HAYDOCK
分类号 B32B27/10;B41M5/00;B41M5/40;B41M5/41;B41M5/50;G03C1/79;G03C5/08;(IPC1-7):G03C1/79 主分类号 B32B27/10
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