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    • 8. 发明授权
    • Method for bleaching cloth
    • 漂白方法
    • US5370707A
    • 1994-12-06
    • US672375
    • 1991-03-20
    • Yoshiteru SandoEiichi NakanoHiroshi IshidoshiroKoji Sando
    • Yoshiteru SandoEiichi NakanoHiroshi IshidoshiroKoji Sando
    • D06L3/08D06L3/06
    • D06L3/085
    • A method for bleaching a cloth comprising subjecting a cloth soaked with an aqueous bleaching solution comprising sodium chlorite to wet heat treatment at a temperature nearly to 100.degree. C., particularly subjecting a long cloth soaked with the bleaching solution to wet heat treatment continuously in an ordinary pressure wet heat treating chamber of which atmosphere being acidified to a pH of 3-4 by the use of an activation agent for making the atmosphere containing sodium chlorite acidic comprising an inorganic acid such as sulfuric acid and hydrochloric acid, an organic acid such as formic acid and acetic acid, and a carbonyl compound such as formaldehyde and acetaldehyde so as to form chlorine dioxide active for the bleaching of a cloth by the decomposition of sodium chlorite, and apparatuses for carrying out the method.
    • 一种漂白布的方法,其特征在于,将含有亚氯酸钠的漂白水溶液浸湿的布在几乎100℃的温度下进行湿热处理,特别是用漂白溶液浸湿的长布,在 通过使用活化剂将大气酸化至pH为3-4的普通压力湿热处理室,使含有酸性的亚氯酸钠的气氛包含无机酸如硫酸和盐酸,有机酸如 甲酸和乙酸,以及羰基化合物如甲醛和乙醛,以便通过亚氯酸钠的分解形成用于漂白布的活性的二氧化氯,以及用于实施该方法的装置。