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    Process for production of synthetic leather
    2.
    发明授权
    Process for production of synthetic leather 失效
    生产合成皮革的方法

    公开(公告)号：US3607481A

    公开(公告)日：1971-09-21

    申请号：US3607481D

    申请日：1967-09-15

    申请人： TOYO RAYON CO LTD ,  TORAY INDUSTRIES

    发明人： SHINOHARA TOSHIKAZU ,  HATTORI HIROSHI ,  MITSUKAWA KONOSUKE

    IPC分类号： D04H1/64 ,  D06N3/14 ,  B32B23/02

    CPC分类号： D04H1/64 ,  D04H1/587 ,  D06N3/14

    摘要： A synthetic leather is produced by impregnating a fiber web with a binder solution, coating one surface of the said web with a solution of a synthetic resin having a viscosity higher than that of the said binder solution before the said binder is coagulated, and thereafter coagulating the said binder and the synthetic resin simultaneously. In another embodiment, it is produced by impregnating a fiber web with a binder solution, applying to one surface of the said web at least one kind of binder solution having a viscosity higher than that of the first-mentioned binder solution in the order of a lower viscosity before the already applied binders are coagulated, applying to the said surface a solution of a synthetic resin having a viscosity of 50-10,000 poises, and thereafter coagulating the said binders and the synthetic resin simultaneously.