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Home > ข้อมูลอุตสาหกรรม > Why is the polyester low-elastic yarn abnormal?
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Why is the polyester low-elastic yarn abnormal?

2018-12-27

Polyester low- elastic yarn is a kind of textured yarn of polyester chemical fiber. It is made of polyester (PET) as raw material, high-speed spinning polyester pre-oriented yarn (POY), and then processed by drawing false twisting. Polyester low-elastic yarn has the characteristics of short process, high efficiency and good quality. In addition to the general polyester rupture strength and elastic modulus, excellent heat setting, good resilience, heat resistance, light resistance, corrosion resistance, easy to wash and dry, it also has high bulkiness. Good heat insulation, comfortable feel and soft gloss.


Polyester low elastic yarn

The stiff filament of polyester low-elastic yarn has a great influence on the post-processing dyeing and weaving process, which makes the fabric obviously produce defects and stains. The reasons for the abnormal phenomenon of polyester low-elastic yarn are as follows: When the fiber is in a relaxed state, it forms an overlap. The twist is bursty in a twig shape, and the fiber is thinner in the fineness. Because the rigidity is low, the twist increases beyond the normal twist range, and the stack is not formed, so that the cloth surface is uneven, and the color strip is formed after dyeing. It is a stack of silk. The filaments are fused and entangled to form a sputum knot, which is difficult to open with a certain external force, the hand feels hard, the monofilaments are bonded to each other, the cloth surface is firm, and the dyed color points are formed after dyeing, and the color strip is Close to the silk. The fiber lacks curling elasticity and awning, and it is stiff and shiny, and looks like a raw silk, which causes obvious streaks on the surface of the fabric. After dyeing, it produces dark streaks, which are long-length silk.

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