以靛蓝为基础色的套色牛仔布为增加靛蓝牛仔品种的色泽、色光变化，彩色(什色)牛仔布主要有溴靛蓝(市场俗称翠蓝)牛仔布和硫化黑牛仔布，超靛蓝”染色牛仔布有两大特征：即染色深度特别深和磨洗色牢度特别好。

印花染料参差不齐，但选用信誉好的商家的产品（如广东天盛新材），质量也是差不到哪里去的。不过无论选用哪家的染料，还是要注意以下事项：

Have you heard of "super-imitation cotton"? "Polyester fabrics are prone to pilling, and pure cotton clothes easily lose their shape. So what fiber combines the excellent properties of cotton with those of polyester, overcoming its shortcomings?" What is "super-imitation cotton"? "Super-imitation cotton" is primarily made of polyester, with a polyester content exceeding 85%. It is a differentiated and functional polyester fiber, including both long-filament and short-fiber imitation cotton. More vividly, super-imitation cotton products look like cotton (visual appeal), feel like cotton (tactile sensation), feel like cotton (comfort), and are more convenient to use than cotton (washable and wearable). It possesses the excellent characteristics of cotton, even surpassing it in some aspects. It is a product of the fusion and integration of multiple technologies, including polymer modification spinning, yarn spinning, weaving, and dyeing and finishing.

Knowledge of Setting Various Fibers I. Nylon Greige Fabric 1. Setting temperature: 160℃-180℃. Speed: 20M-25M/min. 2. Setting temperature greatly affects color, especially purple and light blue. Therefore, pay attention to whether the color of the finished product is the same as the original. 3. The shrinkage rate of nylon fabric varies depending on its thickness. 4. Nylon fabric is prone to snagging during setting. If a snag occurs along a continuous line, stop the machine immediately and check the machine head and tail, bellows, and rollers. Sand the area with sandpaper or add padding. (Similar to nylon stockings and mesh fabrics.)

Spandex can also lose its elasticity! What are the reasons? 1. What are the different forms of spandex elastic fiber yarn? Spandex elastic fiber is blended with other fibers to form elastic yarn. Currently, there are three forms of this yarn: spandex core-spun yarn, spandex twisted yarn, and spandex covered yarn.

Several Basic Properties of Textile Fibers 1. Moisture Absorption Properties of Fibers When textile fibers are placed in the air, they constantly exchange moisture with the air; that is, the fibers continuously absorb moisture from the air while simultaneously releasing moisture into the air.