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[Chemical Knowledge]：Production method and process of polyester cotton yarn

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The manufacturing method
of polyester cotton yarn
polyester cotton yarn is a kind of chemical production raw material made of polyester and cotton fiber, which is widely used in textile, clothing and other fields. The manufacturing method of polyester cotton yarn mainly includes raw material preparation, blending, spinning, post-processing and other processes. This article will detail the manufacturing method of polyester cotton yarn.

1. raw material preparation

1. Polyester fiber preparation: Polyester fiber is a synthetic fiber made by polymerization, which has the advantages of high strength, good elasticity, and wear resistance. Polyester fibers need to be dried and removed before use to ensure their quality and spinnability.
2. Cotton fiber preparation: Cotton fiber is a natural fiber with good moisture absorption and strong air permeability. Cotton fibers need to be cleaned and carded before use to remove impurities and improve the parallelism of the fibers.

2. blending

blending is the process of mixing polyester fiber and cotton fiber in a certain proportion. Blending can be mechanical mixing or air mixing, etc., to ensure uniform mixing of fibers. In the blending process, the ratio of polyester and cotton fibers needs to be adjusted according to the requirements of the product to obtain the required performance and appearance.

3. spinning

spinning is the process of processing the blended fibers into yarn. The spinning process of polyester cotton yarn mainly includes ring spinning, rotor spinning and air-jet spinning. Among them, ring spinning is the most widely used spinning process. Its working principle is to twist the fiber through a high-speed rotating spindle and a traveler to form a yarn. In the spinning process, it is necessary to control the yarn twist, tension and other parameters to ensure the quality and weavability of the yarn.

4. post-treatment
The post-treatment of
polyester cotton yarn includes desizing, scouring, bleaching, drying and other processes to improve yarn quality and serviceability. Desizing is to remove the size in the yarn, scouring is to remove the impurities in the natural fiber, bleaching is to improve the whiteness of the yarn, and drying is to remove the moisture in the yarn. In the post-processing process, it is necessary to control the temperature, time and other parameters of each process to ensure the quality and quality of the yarn.

In short, the manufacturing method of polyester cotton yarn needs to strictly control the process parameters and quality indicators of each process to ensure the quality and performance of the final product. At the same time, it is also necessary to strengthen environmental management and energy consumption control in the production process to improve production efficiency and economic benefits.

In the manufacturing process of polyester cotton yarn, the following points need to be paid attention to:

1. Selection of raw materials: The quality of polyester fiber and cotton fiber has a great influence on the quality of the final product, so it is necessary to choose good quality and performance Stable raw materials.
2. Maintenance and maintenance of equipment: Spinning equipment needs regular maintenance and maintenance to ensure the normal operation of the equipment and the stability of the product.
3. The skill level of operators: The skill level of operators has a great impact on the quality of products. Therefore, it is necessary to strengthen the training and management of operators and improve their skill level and sense of responsibility.

In short, the manufacturing method of polyester cotton yarn needs to comprehensively consider the raw materials, equipment, process, operation and other factors, strengthen quality management and environmental protection management, in order to improve product quality and economic benefits.

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