Photographic Paper
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United States of America Patent
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Issued Date -
Aug 3, 2023
app pub date -
Mar 23, 2021
filing date -
Apr 24, 2020
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Abstract
A photographic paper comprising a base layer having an average surface roughness (Sa) of at least 0.7pm and an outer-most layer comprising a hydrophilic colloid binder and colloidal silica, wherein: (i) the weight ratio of colloidal silica to hydrophilic colloid binder in the outer-most layer is 0.05: 1 to 0.28:1; and (ii) the amount of colloidal silica present in the outer-most layer is in the range of 8 mg/m2 to 280 mg/m2. The photographic paper is useful for preparing ‘non-noisy’ photobooks.
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