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Recording materials and method for manufacturing said materials coated from hydrophilic layers having no gelatin or low amounts of gelatin
Recording materials and method for manufacturing said materials coated from hydrophilic layers having no gelatin or low amounts of gelatin
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机译:记录材料和用于制造由不含明胶或少量明胶的亲水层涂覆的所述材料的方法
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摘要
Recording materials and a method of manufacturing said materials by coating hydrophilic colloidal layer compositions on a support by slide-hopper or curtain-coating techniques, followed by drying, said materials comprising a support and one or more light-sensitive and/or heat-sensitive layer(s) having a hydrophilic colloidal coating composition comprising no gelatin (in the case of (photo)thermographic materials) or gelatin in low amounts in order to provide a ratio by weight of gelatin to silver halide expressed as an equivalent amount of silver nitrate in the range from 0.05 to 0.4 (in the case of a light-sensitive silver halide photographic material) and thickening agents composed of synthetic clay and anionic macromolecular polyelectrolytes and wherein said synthetic clay is present in an amount of at least 85 % by weight versus the total amount of thickening agents.
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