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Basic requirements of waterborne polyurethane leather ingredients
90- 1 10 of waterborne PU resin, 5-25 of waterborne color paste and 0-3 of bridging agent. The waterborne PU surface layer comprises the following components in parts by mass: 90- 1 10, 0-5-25 of waterborne color paste 1-3 of bridging agent. The waterborne PU cattle leather prepared by the invention has soft hand feeling.
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