Composite machine
Composite fabric Color fastness , composite fabric dry rubbing color fastness, composite fabric wet rubbing color fastness, composite fabric light color fastness Fabrics are dyed with reactive dyes. If ordinary dyes are used, the color fastness may not meet the export standards. The color fastness of dark colors is generally about 0.5-1.0 levels worse than that of light colors. Testing methods for color fastness of composite fabrics: Different color fastnesses have different test methods. The test standards are also different according to different customers. (For example, 40 degrees water temperature, machine wash for 30 minutes.) Fabric staining: Cut fabric swatches of specified sizes, sew them together with white acrylic /cotton/wool/nylon/polyester/viscose fabrics and put them in the specified temperature and wash for the specified time. Take them out to dry and check the acrylic/cotton/wool /Nylon/polyester/viscose fabric is stained with the original color, so as to evaluate and count. The rubbing fastness is divided into dry rubbing/wet rubbing. Dry rubbing is to put the fabric directly on the white cloth and rub it repeatedly to see if it remains on the white cloth. Color depth evaluation and number. For example, soaping fastness, it is also divided into two sub-items: color fastness to color fastness and multi-fiber color fastness. Color fastness to discoloration: When testing, first cut a sample of specified size , put it at the specified temperature (this is based on the customer and the washing temperature requirements), wash in the designated amount of water for a certain period of time (this is also related to the customer's requirements). After taking it out to dry, how much does the color change compared to the original color? Evaluate and count based on the degree of change. .
