The so-called polyester silk yarn refers to the collective name of sand and thread. The definitions in clothing materials are as follows:
"Yarn" is to arrange many short fibers or filaments in an approximately parallel state, and rotate and twist along the axial direction to form a slender object with a certain strength and linear density; while "thread" is composed of two or more. Twisted strands of single yarns.
2.1 The different raw materials used can be divided into pure cotton polyester silk yarn, purified fiber polyester silk yarn, cotton blended polyester silk yarn, wool blended polyester silk yarn, and special-shaped polyester silk yarn, etc.
2.2 Different spinning methods: ring spinning polyester silk yarn, air spinning polyester silk yarn, electrospinning polyester silk yarn, etc.
2.3 Different spinning processes: carded cotton polyester silk yarn, combed polyester silk yarn, peach wool polyester silk yarn, etc.
2.4 Different twisting directions: hand twist (s twist) yarn, backhand twist (yarn z twist).
2.5 Different uses of products: yarn for weaving, yarn for knitting, yarn for fleece, polyester silk yarn for rope, polyester silk yarn for fishing net, polyester silk yarn for cord fabric, etc.
2.6 Classification by polyester silk yarn structure: high elastic yarn, low elastic yarn, bulked yarn, network yarn
Three case studies
The polyester silk yarn used in this example is used in special places, and there is no problem with wear resistance. However, in the case of alkaline and high moisture content, the service life of the product is greatly shortened, which affects the performance of the product. Therefore, it is necessary to develop polyester with the characteristics of friction resistance, acid and alkali resistance, and waterproofing under alkaline conditions.
As we all know, polyester is acid and alkali resistant. Under alkaline conditions, polyester will be reduced by alkali and corroded, resulting in fiber damage and affecting the service life. Polyester silk yarn must be waterproofed if you want polyester to last under alkaline conditions.
The above explanation seems to solve the problem, but it is not. The polyester silk yarn used this time needs wear resistance, so there will be a wear-resistant agent on the surface of the polyester color yarn. The abrasion-resistant agent is firmly wrapped on the surface of the polyester color yarn, and the water-repellent agent is completely rejected. How to solve this problem is the difficulty of this program.