背胶魔术贴是指在普通魔术贴和特殊魔术贴带子本身的基础上，经过高温背胶热熔机，将胶水熔解在普通魔术贴和特殊魔术贴带子的背面，再贴上一层油性离型纸，就是成品的背胶魔术贴。
     这个魔术贴的挑选色牢度好与差相信是很多小伙伴都不知道的技巧，今天魔术贴小编给大家分享经验给大家，如果你是采购魔术贴的，都会看到魔术贴色牢度这一特性。那么，色牢度是什么，粘扣带色牢度指的是什么呢？那么如何挑选背胶魔术贴色牢度好坏的方法？
     魔术贴色牢度好与差，直接涉及人体的健康安全，色牢度差的产品在穿着过程中，碰到雨水、汗水就会造成面料上的颜料脱落褪色，则其中染料的分子和重金属离子等都有可能通过皮肤被人体吸收而危害人体皮肤的健康，
     色牢度又称染色牢度、染色坚牢度。是指魔术贴的颜色对在加工和使用过程中各种作用的抵抗力。根据试样的变色和未染色贴衬织物的沾色来评定牢度等级。纺织品色牢度测试是纺织品内在质量测试中一项常规检测项目。
     粘扣带魔术贴等纺织品在其使用过程中会受到光照、洗涤、熨烫、汗渍、摩擦和化学药剂等各种外界的作用，有些印染纺织品还经过特殊的整理加工，如树脂整理、阻燃整理、砂洗、磨毛等，这就要求印染纺织品的色泽相对保持一定牢度。

Adhesive Velcro means that on the basis of the ordinary Velcro and special Velcro tape itself, the glue is melted on the back of the ordinary Velcro and special Velcro tape through a high-temperature adhesive hot melt machine, and then a layer of oily is applied Release paper is the finished adhesive Velcro.
Adhesive Velcro
     The color fastness of this Velcro selection is good or bad. I believe that many small partners don’t know the skills. Today, the Velcro editor will share the experience with you. If you are purchasing Velcro, you will see the color fastness of the Velcro. This characteristic. So, what is the color fastness and what does the color fastness of the hook and loop fastener refer to? So how to choose the color fastness of the adhesive Velcro?
     The color fastness of Velcro is good or bad, directly related to the health and safety of the human body. During the wearing process, products with poor color fastness will cause the pigment on the fabric to fall off and fade when exposed to rain or sweat, and the dye molecules and heavy metal ions Etc. may be absorbed by the body through the skin and endanger the health of the human skin,
     Color fastness is also called color fastness and dyeing fastness. It refers to the resistance of the color of the Velcro to various effects during processing and use. The fastness grade is evaluated according to the discoloration of the sample and the staining of the undyed lining fabric. Textile color fastness test is a routine test item in the internal quality test of textiles.
     Velcro and other textiles are exposed to various external effects such as light, washing, ironing, perspiration, friction and chemical agents during their use. Some printed and dyed textiles are also subjected to special finishing processes, such as resin finishing, flame retardant Finishing, sand washing, sanding, etc., which require the color and luster of printed and dyed textiles to maintain a certain degree of fastness.