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2. Spandex fabrics are often made of composite yarns, that is, spandex is used as the core and other fibers (such as nylon, polyester, etc.) are used as the skin layer to make core-spun yarn elastic fabrics. It has good adaptability to the body and is very suitable for tights without oppression.
For example, it is easy to care for and maintain, as it can be machine washed and dried without fading or losing its shape For example, it is easy to care for and maintain, as it can be machine washed and dried without fading or losing its shapegrey dot fabric. This makes it a great option for busy families or anyone who wants a low-maintenance piece of furniture or decor. 24158. Color fastness to dry cleaning
The current standards for dry cleaning color fastness tests are divided into the new version GB/T 5711-2015 and the old version GB/T 5711-1997. Old version: After the test, filter the solvent left in the container with filter paper, then pour it into a colorimetric tube, use transmitted light, use the staining gray card to evaluate its staining, and finally use the color change gray card to evaluate the color change of the sample. New version: Use an original sample and an untested adjacent fabric as reference samples, and then evaluate the color change of the sample and the staining of the adjacent fabric.