One-bath one-step low-temperature dyeing of polyester/cotton blended fabric with cationic dyes via β-cyclodextrin modification
One-bath one-step low-temperature dyeing of polyester/cotton blended fabric with cationic dyes via β-cyclodextrin modification
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DOI：
10.1177/0040517518779249
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发表时间：
2018-05
影响因子：
2.3
通讯作者：
Wan Zhang;Xiaoqian Ji;Chaoxia Wang;Yunjie Yin
中科院分区：
文献类型：
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作者：
Wan Zhang;Xiaoqian Ji;Chaoxia Wang;Yunjie Yin
以涤纶/棉织物一浴一步染色为目标，采用β-环糊精（β-CD）改性阳离子染料对涤纶织物进行低温染色研究。经β-CD/柠檬酸（CA）改性后，聚酯织物的亲水性得到了明显改善，这主要体现在回潮率、接触角和排汗性能上。通过对染色后聚酯纤维色强的比较，选择了最佳染色温度和交联剂。改性涤纶织物以CA为交联剂，在70℃下染色时，色强由0.12明显提高到4，并具有良好的流平性。β-CD改性涤棉织物的K/S值为8.61，远高于未改性阳离子染料织物的0.71，表明其染色能力得到了很大的提高。在180℃固化温度下，β-CD改性涤棉织物的色牢度（洗涤牢度、摩擦牢度、排汗牢度、光牢度）均在3-4级以上，说明β-CD改性涤棉织物可实现一浴一步染色。
With the aim of polyester/cotton fabric one-bath one-step dyeing, polyester fabric low-temperature dyeing with cationic dyes was investigated based on β-cyclodextrin (β-CD) modification. After β-CD/citric acid (CA) modification, the hydrophilicity of the modified polyester fabric was improved obviously, which was demonstrated via moisture regain and contact angle, as well as wicking property. The optimal dyeing temperature and crosslinking agent were selected through comparing the color strength of the dyed polyester fibers. Modified polyester fabric obtained significantly enhanced color strength from 0.12 to 4 with a good leveling property when dyeing at 70℃ using CA as the crosslinking agent. β-CD modified polyester/cotton fabric displayed a K/S value of 8.61, much higher than the value of 0.71 of the unmodified fabric with cationic dyes, showing a highly improved dyeing ability. The color fastness of β-CD modified polyester/cotton fabrics, including washing fastness, rubbing fastness, perspiration fastness and light fastness, are all over grade 3–4 when the curing temperature of 180℃ is adopted for β-CD modification, demonstrating that polyester/cotton fabric one-bath one-step dyeing can be realized based on β-CD modification.