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[Chemical Knowledge]：Production method and process of pure polyester sewing thread

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The manufacturing method
of pure polyester sewing thread
1. Introduction

In the field of chemical production raw materials, pure polyester sewing thread is an important product, widely used in clothing, home textiles, industrial textiles and other fields. With the continuous development of science and technology, the manufacturing method of pure polyester sewing thread is also constantly improved, which improves the production efficiency, reduces the production cost and improves the product quality. This article will introduce the manufacturing method of pure polyester sewing thread, including raw material selection, processing equipment, manufacturing technology and so on.

2. raw material selection

pure polyester sewing thread raw material is mainly polyester fiber. Polyester fiber has the advantages of high strength, good elasticity, wear resistance, corrosion resistance, etc., so it is an ideal material for sewing thread. When selecting polyester fiber, the linear density, strength, elongation and other indicators of the fiber should be considered to ensure the quality and performance of the sewing thread.

3. processing equipment

pure polyester sewing thread processing equipment mainly includes spinning machine, twisting machine, winding machine, etc. These equipment should have the characteristics of high precision, high efficiency, and high stability to ensure the quality and output of sewing threads.

4. manufacturing process
The manufacturing process of
pure polyester sewing thread mainly includes the following steps:

1. Spinning: The polyester fiber is processed into yarn through a spinning machine. In the spinning process, reasonable process parameters and control methods should be used to ensure that the linear density, strength, elongation and other indicators of the yarn meet the requirements.
2. Twisting: The yarn is twisted by a twisting machine to improve the strength and elasticity of the sewing thread. In the twisting process, the appropriate twist and twist direction should be selected according to the linear density and use of the yarn.
3. Winding: The twisted sewing thread is wound into a certain shape by a winding machine, which is convenient for transportation and use. During the winding process, the winding tension and winding speed should be controlled to ensure the quality and shape of the coil.

5. quality control

In the manufacturing process of pure polyester sewing thread, a complete quality control system should be established to ensure that the product quality meets relevant standards and customer requirements. Quality control mainly includes raw material inspection, semi-finished product inspection, finished product inspection and other links.

6. environmental protection and sustainable development

With people's attention to environmental protection and sustainable development, the manufacture of pure polyester sewing thread should also consider environmental protection and sustainable development. In the production process, environmentally friendly processes and materials should be adopted to reduce the discharge of wastes and pollutants and improve the efficiency of resource utilization.

7. conclusion The manufacturing method of

polyester sewing thread involves the selection of raw materials, processing equipment, manufacturing process and other aspects. In order to improve product quality and output, suitable raw materials, high-precision processing equipment and scientific manufacturing technology should be selected. At the same time, quality control and environmental protection management should be strengthened to promote the sustainable development of pure polyester sewing thread manufacturing.

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