弹力针织物的耐光照色牢度

Color Fastness to Light of Stretch Knitted Fabrics

弹力针织物耐光照色牢度差,严重影响服饰整体效果和使用寿命,分析了弹力针织物耐光照色牢度的测试方法、影响因素,以及对比试验,纺织品的耐光照色牢度主要取决于染料本身的结构,选用合适的染料进行染色是控制针织物耐光照色牢度的基础,后处理也能有限改善针织物耐光照色牢度。另外染料上染浓度和光源也是影响弹力针织物耐光照色牢度的因素。目前在染整加工厂,对涤氨针织物染色完成后还原清洗,对锦氨针织物染色完成后固色是常规改善日晒牢度的方法,缺点是改善幅度有限,关键还是选用高耐光照色牢度染料染色。

The poor color fastness of stretch knitted fabrics to light seriously affected the overall effect and service life of clothing.The test method of light fastness of stretch knitted fabric,the influencing factors and the comparative experiment were analyzed.The color fastness to light of textiles mainly depended on the structure of the dye itself.The selection of appropriate dye for dyeing was the basis of controlling the color fastness to light of knitted fabrics.Post-treatment could also improve the color fastness to light of knitted fabrics directly.In addition,dye concentration and light source were also factors affecting the color fastness to light of stretch knitted fabric.At present,in dyeing and finishing factories,reducing cleaning of polyester spandex knitted fabrics after dyeing and fixing of nylon spandex knitted fabrics after dyeing were the conventional methods to improve the color fastness to light.The disadvantage was that the improvement range was limited,and the selection of high light-resistant dyes was the key point.