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1. 发明专利

GB577433A An improved process for rendering nylon fabrics water repellent 未知
公开(公告)号：GB577433A
公开(公告)日：1946-05-17
申请号：GB316744
申请日：1944-02-21
申请人： CHARLES DUNBAR , GEORGE LANDELLS , CHARLES ALBERT NORRIS , RICHARD JAMES SMITH , ICI LTD
IPC分类号： D06M13/46 , D06M15/227
摘要： 577,433. Proofing fabrics. DUNBAR, C., LANDELLS, G., NORRIS, C. A., SMITH. R. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 21, 1944, No. 3167. [Class 140] Nylon fabrics are rendered water repellent by treatment with a conventional reagent such as a heat decomposable long-chain quaternary ammonium compound or a wax, the material being subjected to a hot calendering operation either before or after the treatment with the reagent. The nylon fabric is passed through a dispersion of the quaternary ammonium salt of a wax emulsion, the excess liquid expressed between rollers and, in the case of the quaternary ammonium salt, baked, washed in soap solution and dried. In the case of the wax dispersion the fabric is only dried. The fabric so treated is heavily calendered at above 80 ‹C. on both back and face. In a modification, the nylon fabric is calendered before being treated in an emulsion of the wax, e.g., that known under the registered Trade Mark Dipsanil V, and dried. The fabrics are used for umbrella covers, lightweight weatherproof garments and splashproof curtains. Suitable waxes include the paraffin waxes for which benzene and volatile paraffins are suitable solvents. Specifications 466,817, 477,991. 493,920, 495,025, 497,856, 498,287, 517,474, 517,631, 517,632 and 538,897 are referred to.

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