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    • 6. 发明授权
    • Method for bleaching denim textile material
    • 漂白牛仔纺织材料的方法
    • US5749923A
    • 1998-05-12
    • US651785
    • 1996-05-24
    • Vinzenz OlipNorbert Steiner
    • Vinzenz OlipNorbert Steiner
    • C11D11/00D06L3/10
    • D06P5/151D06P5/155D06P1/228
    • 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.
    • 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。
    • 8. 发明授权
    • Sequential oxidative/reductive bleaching and dyeing in a multi-component
single liquor system
    • 多组分单液系统中的顺序氧化/还原漂白和染色
    • US5264001A
    • 1993-11-23
    • US697549
    • 1991-05-09
    • Mustafa ArifogluWilliam N. Marmer
    • Mustafa ArifogluWilliam N. Marmer
    • D06L3/02D06L3/10D06L3/14D06L3/00D06M11/00D06M13/322
    • D06L3/14D06L3/02D06L3/021D06L3/10
    • The present invention is drawn to new processes for sequential oxidative and reductive bleaching and dyeing of fibers (e.g. natural, synthetic, or blends thereof) e.g. in a single bath, which provide superior bleaching with less physical damage and therefore improved dyeing. Said processes comprising the steps of: (1) bleaching fibers with hydrogen peroxide; (2) adding either, (a) a material which combines with hydrogen peroxide to form a reductive bleaching agent, or (b) an inactivating material to inactivate unspent hydrogen peroxide with subsequent addition of a reductive bleaching agent; (3) reductively bleaching the already oxidatively bleached fibers; (4) adding an oxidizing material in an amount at least sufficient to oxide excess reductive bleaching agent; and (5) dyeing of the bleached fibers. Also encompassed by the present invention are novel bleached and dyed fibers produced by the aforementioned processes, having highly advantageous and desirable properties.
    • 本发明涉及用于纤维(例如天然的,合成的或其共混物)的顺序氧化还原漂白和染色的新方法。 在单一浴中,其提供优异的漂白,具有较少的物理损伤并因此改善染色。 所述方法包括以下步骤:(1)用过氧化氢漂白纤维; (2)加入(a)与过氧化氢结合以形成还原性漂白剂的材料,或(b)灭活材料以灭活未使用的过氧化氢,随后加入还原性漂白剂; (3)还原漂白已经氧化漂白的纤维; (4)加入至少足以氧化过量还原漂白剂的氧化物质; 和(5)染色漂白纤维。 本发明还包括通过上述方法生产的新型漂白和染色纤维,具有非常有利和期望的性能。