Application of ozone in cotton bleaching with multiple reuse of a water bath
Application of ozone in cotton bleaching with multiple reuse of a water bath
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臭氧在水浴多次重复使用棉花漂白中的应用
DOI：
10.1177/0040517513499429
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发表时间：
2014
影响因子：
2.3
通讯作者：
M. Chaudhry
中科院分区：
文献类型：
--
作者：
F. Arooj;Nasir Ahmad;I. Shaikh;M. Chaudhry
讨论了臭氧漂白对棉织物白度、染率、铜数和聚合度（DP）的影响。对工艺参数（pH、臭氧剂量、处理时间）进行了优化，在pH为5、处理时间为45 min、室温条件下，漂白织物的白度为60-62，质量最佳。强酸性环境和较长的臭氧氧化时间使织物的铜含量（0.18）和DP损失（51.5%）增加，从而降低了织物的质量。采用方差分析法对实验数据进行统计分析，证实工艺参数对漂白效率有显著影响。然后将该工艺应用于20种不同的棉织物样品，重复使用同一水浴，即使在重复使用第20次水浴后，臭氧漂白的样品的白度也没有下降。
This paper discusses the effect of ozone bleaching on the quality of cotton fabric in terms of whiteness, dye pick-up, copper number and degree of polymerization (DP). The process parameters (pH, ozone dose and treatment time) were optimized, and the best whiteness (60–62) and quality of bleached fabric was obtained at pH 5, 45 min treatment time and room temperature. A strongly acidic environment and longer ozonation time decreased the quality of fabric by producing a higher copper number (0.18) and DP loss (51.5%). Statistical analysis of the experimental data using analysis of variance confirmed that process parameters significantly affected the bleaching efficiency. The process was then applied to bleach 20 different samples of cotton fabric re-using the same water bath, and the whiteness of ozone-bleached samples did not decrease, even after the 20th reuse of the water bath.