Selection of chemical fiber raw materials based on spinning

Spinning Basis Selection of Chemical Fiber Raw Materials
1、 Purpose of selection
1. Improve the quality and serviceability of the product, make full use of various characteristics of chemical fiber, learn from each other, and improve the use value.
2. Increase the variety of designs and colors to make products of various styles and uses through pure spinning or blending of different fibers to meet the needs of society.
3. Improvement of spinnability The spinnability can be improved by mixing cotton or viscose with synthetic fibers with high moisture absorption.
4. Reduce product cost Under the premise of ensuring the requirements for taking, the production cost can be reduced by mixing some low-cost fibers.
2、 Selection of chemical fiber varieties and determination of mixing ratio
For the selection of chemical fiber varieties, the following factors shall be considered: the use of the product, such as clothing or industrial use, underwear or outerwear use; Product performance requirements, such as fabric strength, stiffness, etc; Production cost of fabric.
1. Pure chemical fiber spinning can be divided into single mark and multiple marks. Single mark pure spinning is not easy to produce color difference. When multiple marks are blended, dyeing test must be carried out, and they must be lined up according to color depth for reference when selecting. The main varieties are pure polyester yarn, pure nitrile yarn, pure viscose yarn, etc.
2. The main varieties of chemical fiber blending are polyester viscose yarn, polyester nitrile yarn, etc.
3. The main varieties of cotton and chemical fiber blended yarn are polyester cotton yarn, nitrile cotton yarn, Uygur cotton yarn, viscose cotton yarn, etc. Cotton plays a role in improving the hygroscopicity, spinnability and wearability of products.
4. Determination of blending ratio Determination of fabric blending ratio, taking into account the following factors: fabric performance, such as strength, style, etc; Cost of fabric and product price. The common blending ratio of blended yarn is 50/50, 55/45, 60/40, 65/35, and some products use 20/80, 30/70 and other blending ratios or inverse ratios. The fiber properties of the fiber with a large proportion have a greater impact on the properties of the yarn, and the yarn has the properties of this fiber. The determination of the proportion mainly considers such factors as cost, strength, fabric requirements and spinning performance.