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AQUEOUS LEATHER-TREATING COMPOSITION FOR PRODUCING EMBOSSING-COATED LEATHER HAVING IMPROVED EMBOSSING PROPERTY AND ITS USE
AQUEOUS LEATHER-TREATING COMPOSITION FOR PRODUCING EMBOSSING-COATED LEATHER HAVING IMPROVED EMBOSSING PROPERTY AND ITS USE
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机译:用于生产具有改善的压花性能的压花涂布皮革的水性皮革处理组合物及其用途
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摘要
PURPOSE: An aqueous leather-treating composition is provided to produce embossing-coated leather having an improved embossing property. And a method is provided also to produce an embossing-coated leather matrix by using the composition. CONSTITUTION: The aqueous leather-treating composition contains: a soft polymer particle selected from a soft polyurethane polymer particle having a glass transition temperature of less than 20deg.C, a soft additive polymer particle having a glass transition temperature of -70 to 10deg.C, or a mixture thereof; a water-filled void particle having an average particle diameter of 0.1-4 micron, wherein the dry weight ratio of the soft polymer particle and the water-filled void particle is 19:1-3:2. And the embossing-coated leather matrix is produced by the method contains the steps of: applying the aqueous leather-treating composition to a leather matrix; drying the composition to prepare a coated leather matrix; bring the coated surface of the leather matrix into contact with a designed surface with applying a pressure to the border of the coated surface; and separating the designed surface from the coated surface.
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