Tencel织物的前处理工艺

通过正交试验探讨碱氧一浴、原纤化和酶处理工艺对Tencel织物前处理质量的影响,分析不同质量浓度氢氧化钠处理对Tencd织物染色性能的影响.确定Tencel织物碱氧一浴法处理的优化工艺为:烧碱20g/L,精练剂科宁88 3 g/L,双氧水(27.5%)20 s/L,硅酸钠5g/L,稳定剂P5 g/L,渗透荆FR-M 1 g/L,络合剂28-A 2g/L,浴比1:20,90℃×30 min;原纤化优化工艺为:纯碱4 g/L,渗透剂FR-M 1 g/L,浴比1:20,90℃×30 min;酶处理优化工艺为:L40酶3 g/L,pH值7,渗透剂FR-M 1 g/L,浴比1:20,50℃×30 min.经该优化工艺处理,织物白度和毛效显著提高.此外,织物经苛化后,染色表观深度(K/S值)显著提高,合适的氢氧化钠浓度为100 g/L.

Pretreatment of Tencel fabric

Effects of one bath process of alkali and hydrogen peroxide, fibrillation process and enzyme treatment on pretreat-ment qualities of Tencel fabric were discussed, caustic soda treatment under different concentrsations was carried out to im-prove dyeability of Tencel fabric. Via orthogonal tests, optimal conditions were defined as follows: one bath process of alkali and hydrogen peroxide was: NaOH 20 g/L, Cognis 88 3 g/L, H2O2 20 g/L, Na2SiO3 5 g/L, stabihzer P 5 g/L, penetrating agent FR-M 1g/L, chelating agent 28-A 2 g/L, bath ratio 1:20, 90℃× 30 rain; fibrillation process: Na2CO3 4 g/L, penetrating agent FR-M 1 g/L,bath ratio 1 : 20, 90℃×30 min; enzyme treatment: enzyme L40 3 g/L, pH value 7, penetrating agent FR-M 1 g/L, bath ratio 1:20, 50 ℃×30 min. Tencefabric after treatment featured good whiteness and absorbency, and little change in weight and strength. It was found that 100 g/L caustic soda treatment could greatly improve K/S values of the dyeings.