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Roughness elimination by control of strength of polymer sheet in relation to base paper
Roughness elimination by control of strength of polymer sheet in relation to base paper
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机译:通过控制聚合物片材相对于原纸的强度来消除粗糙度
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摘要
The invention relates to a photographic element comprising a paper base, at least one photosensitive silver halide layer, a biaxially oriented polymer sheet between said paper base and said silver halide layer, wherein said polymer sheet has a thickness of between 13 microns and 65 microns and a Young's modulus of between 700 and 5200 MPa wherein said base paper has a Young's modulus between 1380 MPa and 13800 MPa, a thickness between 75 microns and 200 microns, and an average roughness on the emulsion side of between 0.18 and 0.68 microns and wherein the ratio of thickness between said polymer sheet and said base paper is between 0. 1 and 0.5.
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