How to distinguish the color fastness of Velcro? _
When we buy , we will see the characteristic of color fastness. So what does color fastness mean? Let me give us a brief introduction:
The color fastness of refers to the resistance of the color of textiles to various effects during processing and use. The fastness grade is determined according to the discoloration of the sample and the staining of the undyed lining fabric. Textile color fastness inspection is a routine inspection item in textile connotation quality inspection.
The color fastness of (color fastness) is also called color fastness and color fastness. It refers to the resistance of the color of textiles to various effects during processing. The fastness level is determined according to the discoloration of the sample and the staining of the undyed lining fabric. The textile color fastness test is the connotative quality of the textile A routine test item in the inspection.
Hook and loop fasteners (velcro) have good and poor color fastness, direct contact with human health and safety, poor color fastness products in the process of wearing, encounter rain, sweat will form on the fabric If the color drops and fades, the dye molecules and heavy metal ions may be absorbed by the human body through the skin and endanger human skin health. On the other hand, it will also affect the staining of other clothing worn on the body, perhaps with other clothing. Stain other clothes when washing.
During its use, textiles will be exposed to various external effects such as light, washing, ironing, stains, resistance, and chemical relief. Some printed and dyed textiles are also subjected to special pick-up processing, such as Resin pick-up, flame-retardant pick-up, sand washing, sanding, etc., which require the color and luster of printed and dyed textiles to be relatively high-quality fastness.
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