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    • 4. 发明申请
    • METHOD FOR DYEING COTTON WITH INDIGO
    • 用靛蓝染色棉花的方法
    • WO2006041480A1
    • 2006-04-20
    • PCT/US2004/032961
    • 2004-10-07
    • ALPERT, Melvin
    • ALPERT, Melvin
    • D06P1/22
    • D06P3/6025D06P1/228D06P1/5242D06P1/525D06P1/5278D06P1/667
    • A method for dyeing a cellulosic material, such as cotton or a blend including cotton, in the form of yarn, fabric, or garments, includes: a) preparing a dyebath including particles of indigo and an additive, such as an anionic acrylic copolymer, causing the particles to become charged; b) preparing the cellulosic material by applying an additive, such as a cationic polyamide, forming a substrate with a charge attracting the particles, c) immersing the cellulosic material in the dyebath; d) chemically reducing the particles retained on the cellulosic material to a leuco form; and e) oxidizing the dye material.
    • 一种以纱线,织物或衣服的形式染色纤维素材料如棉花或包括棉花在内的共混物的方法包括:a)制备包括靛蓝颗粒和添加剂如阴离子丙烯酸共聚物的染浴, 使颗粒变得带电; b)通过施加诸如阳离子聚酰胺的添加剂来制备纤维素材料,形成具有吸引颗粒的电荷的基底,c)将纤维素材料浸渍在染浴中; d)将保留在纤维素材料上的颗粒化学还原成无色形式; 和e)氧化染料。