发明公开
EP2703553A1 Process for bleaching using peroxo-polyoxometalates for textiles made from mixtures of cellulosic fibers such as: flax-cotton, hemp-cotton
审中-公开
使用过氧由纤维素纤维如亚麻，棉花，大麻棉的混合物制成的多金属氧酸盐漂白纺织品的方法
- 专利标题： Process for bleaching using peroxo-polyoxometalates for textiles made from mixtures of cellulosic fibers such as: flax-cotton, hemp-cotton
- 专利标题（中）： 使用过氧由纤维素纤维如亚麻，棉花，大麻棉的混合物制成的多金属氧酸盐漂白纺织品的方法
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申请号： EP13464006.9申请日： 2013-04-02
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公开(公告)号： EP2703553A1公开(公告)日： 2014-03-05
- 发明人: Sirghie, Cecilia , Botar, Alexandru , Bodescu, Adina Maria , Dochia, Mihaela
- 申请人： Institutul de Cercetare, Dezvoltare, Inovare in Stiinte Tehnice si Naturale al Universitatii "aurel Vlaicu" din Arad
- 申请人地址： Strada Elena Dragoi, Nr. 2-4 Corp M Camera 63 310330 Arad, Jud. Arad RO
- 专利权人： Institutul de Cercetare, Dezvoltare, Inovare in Stiinte Tehnice si Naturale al Universitatii "aurel Vlaicu" din Arad
- 当前专利权人： Institutul de Cercetare, Dezvoltare, Inovare in Stiinte Tehnice si Naturale al Universitatii "aurel Vlaicu" din Arad
- 当前专利权人地址： Strada Elena Dragoi, Nr. 2-4 Corp M Camera 63 310330 Arad, Jud. Arad RO
- 代理机构： Ghita, Constantin
- 优先权： RO201200640 20120904
- 主分类号： D06L3/02
- IPC分类号： D06L3/02 ; D06L3/14 ; C11D3/39
摘要：
According to the invention, the process consists of bleaching textile materials from mixtures of cellulosic fibre, such as: (flax-cotton, hemp-cotton) until achieving a whiteness degree of 70-80%, which is carried out in two stages: in the first stage, the materials are treated in aqueous solution containing peroxo-POM catalysts {(NH 4 ) 8 [Mo 10 O 22 (O 2 ) 12 ]; Na 2 [MoO(O 2 ) 2 (C 2 O 4 )]; MoO(O 2 ) 2 ; WO(O 2 ) 2 } in the presence of ionic surfactant and H 2 O 2 , at the temperature of 70-90° C for 60-90 minutes, while in the second stage the material treated in the first stage is suspended in a solution containing 1,5-7 g NaOH, 0,2-1,3 g Na 2 SiO 3 and 0,8-3,2 g H 2 O 2 , for 1-1.5 hours at the temperature of 70-80°C, after which it is washed with cold water until it reaches neutral pH, and then it is air-dried.
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