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The most common products of nylon yarn are nylon 6 and nylon 66.

March 27, 2023
Nylon fiber fabrics can be divided into three categories: pure spinning, blending and fabric. Each category contains many varieties.
1. Nylon silk pure textile fabrics made of nylon yarn as raw materials, such as nylon silk taffeta, nylon silk and so on. Because it is woven with nylon filament, it has the characteristics of smooth, durable and moderate price. It also has the disadvantage that the fabric is easy to wrinkle and difficult to recover. Nylon taffeta is mostly used for light clothing, down jackets or raincoats, while nylon enamel is suitable for summer dresses and spring and autumn shirts.
2. Nylon-woven and blended fabrics are made by blending or interlacing nylon filaments or staple fibers with other fibers, and combine the characteristics and strengths of each fiber. For example, Glue/Jinhuada is made of 15% nylon yarn and 85% viscose blended yarn. The nylon yarn has twice the density of the weft density. It is thick and strong, and it is tough and durable. The disadvantage is elasticity. Poor, easy to wrinkle, wet and strong drop, easy to droop when wearing. In addition, there are also a variety of commonly used fabrics such as sticky/jinfan Liding, sticky/jin/hairy tweed.
The most common nylon yarn products on the market are nylon 6 and nylon 66.
Nylon 6: The full name is polycaprolactam fiber, which is formed by polymerization of caprolactam.
Nylon 66: The full name is polyhexamethylene adipamide fiber, which is formed by polymerization of adipic acid and hexamethylene diamine.
The common characteristics of nylon yarn 6 and nylon yarn 66: poor light resistance, the intensity is reduced under long-term sunlight and ultraviolet light, the color is yellow; its heat resistance is not good enough, and it is 5 hours at 150 °C. That is, yellowing, the strength and elongation are significantly decreased, and the shrinkage rate is increased. The nylon 6 and 66 filaments have good low temperature resistance. When the temperature is below 70 °C, the nylon yarn resilience does not change much. The DC conductivity of nylon yarn is very low. It is easy to generate static electricity due to friction during processing. Its conductivity increases with the increase of moisture absorption rate and increases exponentially with the increase of humidity. Nylon 6,66 filament has strong microbial resistance, and its ability to resist microbial action in silt water or alkali is second only to polyvinyl chloride. In terms of chemical properties, nylon filament 6 and 66 filaments have alkali resistance and resistance to reducing agents, but have poor performance in acid resistance and oxidant resistance.

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