| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a moisture-permeable waterproof fabric which gives dull feeling and excels in tearing strength irrespective of thin fabric. SOLUTION: The method for producing the moisture-permeable waterproof fabric having a thickness of≤0.15 mm and a tear strengths of≥10 N in a warp tear direction and in a weft tear direction comprises (i) a process for vacuum heating solid polyamide resin chips containing a titanium oxide in an amount of≥1 wt.% and having a relative viscosity of≤2.7 to form the chips having a relative viscosity of≥2.8 and then spinning the chips by a one step spinning method to produce a multifilament yarn having a total fineness of 30 to 45 dtex and a single filament fineness of 0.5 to 1.5 dtex, (ii) a process for weaving a base fabric composed of a lipstop construction, and (iii) a process for providing at least one resin layer on the fabric. COPYRIGHT: (C)2008,JPO&INPIT
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