公开(公告)号：US3654679A

公开(公告)日：1972-04-11

申请号：US3654679D

申请日：1968-07-30

Applicant: ALLIED CHEM

Inventor： MENEGHINI CARLO ,  MAYER RICHARD EUGENE ,  LAZARUS STANLEY DAVID ,  RAINER NORMAN BARRY

IPC: D01D5/247 ,  D02G3/36

CPC classification number: D01D5/247 ,  Y10S8/04 ,  Y10S8/21 ,  Y10T428/2975 ,  Y10T428/2978 ,  Y10T428/31 ,  Y10T442/2582

Abstract: A fibrous material, which can be a filament, fabric, or a film, having increased whiteness and a desirable luster is produced by a process which comprises treating the fibrous material comprising a polyamide matrix having polyester microfibers dispersed therein with a hot, aqueous caustic solution containing about 0.5 to 10, preferably about 2 to 6, weight percent of a caustic material which can be an alkali metal oxide or hydroxide or an alkali metal salt of a weak acid which is capable of producing a pH of at least about 12.5 at a concentration of 0.1N in aqueous solution, at a temperature of at least about 95* C, for a period of time sufficient to remove a portion of the polyester microfibers to produce elongated microvoids in the fibrous material thereby increasing the whiteness and imparting a lustrous effect to the fibrous material.

Abstract translation: 可以通过包括用分散有聚酯微纤维的聚酰胺基质的纤维材料用热的苛性碱溶液处理纤维材料，其可以是具有增加的白度和所需光泽的长丝，织物或膜的纤维材料 其含有约0.5至10重量％，优选约2至6重量％的碱金属材料，其可以是碱金属氧化物或氢氧化物或弱酸的碱金属盐，其能够在一定程度上产生至少约12.5的pH 浓度为0.1N的水溶液，在至少约95℃的温度下，足以除去一部分聚酯微纤维以在纤维材料中产生细长的微孔，从而增加白度并赋予光泽效应 到纤维材料。