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Textile finishing with liquid ammonia

机译:液氨纺织品整理

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If cotton (pure cellulose) is dipped into a strong alkaline solution such as caustic soda, the fibre will swell and shrink. If the fibres are placed under tension while in this swollen state and then rinsed with water, the alkali will be removed and a permanent silk-like lustre will result. This treatment is the classic mercerization process and has the scope to improve certain physical, chemical-physical and optical characteristics. .rnApart from caustic soda, also anhydride liquid ammonia induces the mercerization effect i.e. swelling in cellu-losic fibre. This process is generally referred as ammonia mercerization. No effect of mercerization is obtained when ammonia is used in solution or gaseous state. The ammonia mercerization imparts excellent properties with particular additional effects, which are not obtainable with caustic soda.
机译:如果将棉花(纯纤维素)浸入强碱溶液(如苛性钠)中,则纤维会膨胀并收缩。如果在这种膨胀状态下将纤维置于张力下,然后用水冲洗,则碱将被去除,并产生永久的丝状光泽。这种处理是经典的丝光处理工艺,具有改善某些物理,化学物理和光学特性的范围。除了苛性钠以外,酸酐液态氨还引起丝光作用,即纤维素纤维的溶胀。该过程通常称为氨汞丝化。当氨以溶液或气态使用时,没有丝光作用。氨化丝光赋予优异的性能,并具有特别的附加效果,而苛性钠则无法获得。

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  • 来源
    《Colourage》 |2008年第5suppla期|34-38|共5页
  • 作者

    N. K. Sharma;

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