在服装穿着过程中,不少消费者都遇到过局部脱色、无故勾丝、掉毛等问题,本刊特邀北京市纺织纤维检验所专家为你解答——Q休闲裤穿了一段时间后,大腿处的颜色为什么会变浅?a服装在实际穿着时,衣服的正面会因沾上汗液在日光的作用下导致褪色,这种现象说明产品的耐光汗色牢度比较差。耐光汗色牢度差的产品大部分为经活性染料染色加工,颜色为藏青色、橄榄绿、灰色等暗色系的面料,变色后出现泛黄、泛红等变浅的色差。出现变色的部位主要 In the process of wearing apparel, many consumers have encountered some of the bleaching, hook for no reason, hair loss and other issues, the magazine invited Beijing Textile Fiber Inspection experts to answer your questions - Q casual pants to wear after a period of time , The color of the thighs will become lighter? A clothing in actual wear, the front of the clothes due to stained with perspiration in the role of sunlight led to fade, this phenomenon shows that the light fastness of the product is relatively poor color fastness. Most of the products with poor fastness to light and perspiration, are dyed by reactive dyes. The colors are dark-colored fabrics such as navy blue, olive green and gray. After discoloration, yellowing, reddening and the like become lighter. The main discoloration of the site