公开(公告)号：US5749923A

公开(公告)日：1998-05-12

申请号：US651785

申请日：1996-05-24

申请人： Vinzenz Olip ,  Norbert Steiner

发明人： Vinzenz Olip ,  Norbert Steiner

IPC分类号： C11D11/00 ,  D06L3/10

CPC分类号： D06P5/151 ,  D06P5/155 ,  D06P1/228

摘要： A method for chlorine-free bleaching of denim textile material composed of warp yarn which is dyed with at least one of (a) indigo dye and at least one sulfur dye, and (b) at least one derivative of indigo dye and at least one sulfur dye, and weft yarn which is undyed and substantially white and which continues to be substantially white after bleaching to provide a denim textile material having a stylish gray cast. The method includes placing denim textile material in water and heating; adding to the water a dispersing agent which is effective to retard deposition of dyestuff stripped from the warp yarn during bleaching onto the weft yarn and which is comprised of polyvinylpyrrolidone; and bleaching the denim textile material by adding to the water an aqueous alkaline bleaching agent which contains a bleaching agent which is selective for the indigo dye or the derivative of indigo dye of the warp yarn and which is selected from the group consisting of formamidine sulfinic acid, and a mixture of formamidine sulfinic acid and at least one reducing carbohydrate, wherein the least one sulfur dye includes a sulfur black dye, and wherein the method provides denim textile material having a stylish gray cast.

摘要翻译： 一种用于（a）靛蓝染料和至少一种硫化染料中的至少一种染色的经纱组成的牛仔纺织材料的无氯漂白方法，和（b）至少一种靛蓝染料衍生物和至少一种 硫化染料和未染色且基本上白色的纬纱，并且在漂白后仍然基本上白色，以提供具有时尚灰铸件的牛仔布纺织材料。 该方法包括将牛仔布纺织材料放入水中并加热; 向水中加入分散剂，其有效地阻止在漂白期间从经纱中剥离的染料沉积到纬纱上并且由聚乙烯吡咯烷酮组成; 并通过向水中加入含有漂白剂的水性碱性漂白剂来漂白牛仔布纺织品，所述漂白剂对于靛蓝染料或经纱靛蓝染料的衍生物是选择性的，并且选自甲脒亚磺酸 ，以及甲脒亚磺酸和至少一种还原性碳水化合物的混合物，其中所述至少一种硫化染料包括硫黑染料，并且其中所述方法提供具有时尚灰铸件的牛仔布纺织材料。

公开(公告)号：US5549715A

公开(公告)日：1996-08-27

申请号：US347146

申请日：1994-11-22

申请人： Vinzenz Olip

发明人： Vinzenz Olip

IPC分类号： C11D11/00 ,  D06L4/30 ,  D06L3/10

CPC分类号： D06L3/10

摘要： A method for bleaching textile material, including preparing an aqueous alkaline solution of a bleaching agent composed of formamidine sulfinic acid and at least one carbohydrate having a general total formula C.sub.n H.sub.2n O.sub.n, the formamidine sulfinic acid and the at least one carbohydrate having a weight ratio with respect to one another which ranges from 80:20 to 99:1; and bleaching textile material composed at least in part of cellulose materials by contacting the textile material with the bleaching agent at a temperature above 50.degree. C. therefor.

摘要翻译： 一种用于漂白纺织材料的方法，包括制备由甲脒亚磺酸组成的漂白剂的碱性水溶液和至少一种具有总体式C n H 2n O n的碳水化合物，甲脒亚磺酸和至少一种碳水化合物的重量比与 彼此之间的范围为80:20至99:1; 以及通过使纺织材料与漂白剂在高于50℃的温度下接触来漂白至少部分由纤维素材料组成的纺织材料。