How to prevent pilling?

Consider the prevention and finishing methods from the factors that affect the fabric fuzzing and pilling, roughly starting from three aspects: whether it is easy to pilling (that is, strangling in the cradle) + whether the fuzz is easy to fall off (that is, how effective is the fighting ability) + finishing technology can be effective Resist the fuzzing and pilling, that is, the method of changing the fiber structure and performance, the spinning process and composition of the yarn, and the fabric structure is adopted, and then the dyeing and finishing process and the functional finishing auxiliaries are used to improve the finishing.

       Fabric dyeing and finishing process: singeing, shearing and brushing can remove the fibers that are easy to form plush on the surface of the fabric and reduce the factor of fabric pilling; the coated fabric has a smooth surface and is not easy to pilling; polyester/cotton fabric The use of heat setting or resin finishing can make the position between the yarns fixed and increase the sliding resistance, the surface of the fabric is smooth, and the anti-pilling property is enhanced. After the wool-polyester fabric is milled, the wool fiber tends to the surface to slow down pilling; combined with anti-pilling agent for finishing. The effective finishing processes for improving the pilling of textile fabrics include:

1. Biological finishing (biological polishing)

       Bio-polishing is a finishing process that uses cellulase to improve the surface of cellulose fiber (regenerated fiber) fabric to achieve long-lasting anti-pilling effect and increase the smoothness and softness of the fabric. Bio-polishing removes the fine fluff and fine fibers protruding from the surface of the yarn, and the fluff on the surface of the fabric is greatly reduced, and it becomes smooth without pilling (enzymatic hydrolysis and mechanical impact together remove the fluff and fiber ends on the surface of the fabric , Make the fabric structure clearer and brighter).

       This method has a lasting effect on reducing the fuzzing and pilling, because the end of the fiber is removed instead of being covered in situ, but this method will cause a certain loss of fabric strength and partial weight loss. Cellulase is used for cotton and polyester/cellulose fiber blended fabric; wool or polyester/wool blended fabric is polished with suitable biological protease. The process conditions must be strictly controlled, otherwise it will cause enzyme inactivation or serious damage to the fabric and weight loss, and there will be cylinder errors in large quantities of fabrics.

2. Light milling method (used for sweaters, wool knitwear, etc.)

       After knitwear such as woolen sweaters is lightly milled, the roots of the wool fibers are felted in the yarn, and the fibers are entangled with each other, so the friction coefficient between the fibers is enhanced, and the fibers are not easily removed from the yarn when they are subjected to friction The thread slips out, thereby reducing the fuzzing and pilling of wool and other fabrics. At present, the worsted woolen sweater and other fabrics are generally milled slightly to improve the anti-pilling effect.

3. Anti-pilling finishing

       Utilize the polymer finishing agent (anti-pilling agent) to cross-link and form a film on the surface of the fiber to bond the fiber points and wrap a layer of wear-resistant film on the surface of the fiber and yarn to reduce the slippage of the fiber , To limit its movement to achieve the purpose of reducing fuzzing and pilling, which can effectively improve the fabric's anti-fuzzing and pilling resistance.

       The resin (acrylic self-crosslinking type) anti-pilling agent used in the early days can no longer meet the high requirements of customers for fabrics, because its (resin) feels hard after treatment, its strength decreases, and the color of the processed object changes, even Need high-temperature baking and environmental protection issues.

       At present, the new generation of anti-pilling agents, whose main representative products are waterborne polyurethane polymer and organic silicone resin, have been widely used in the anti-pilling finishing of textiles.