1. Selection of raw materials and fabric design
1. Raw materials are fundamental. Early fibers were mainly used for clothes, and their properties met general wearing requirements. With the development of social production and the advancement of science and technology, the improvement of production levels and people’s living standards, especially the rise of high-tech industries, has put forward higher requirements for the fiber industry. For example: industries such as aerospace, marine engineering, atomic energy, and new civil construction require high-strength, high-modulus, high-performance fibers, environmentally resistant fibers that are heat-resistant, fire-resistant, corrosion-resistant, and radiation-resistant; special industries such as chemical industry and electronics require conductivity , antistatic, photoelectric and photoconductive properties; in the field of life sciences, fibers with biomedical functions such as human adaptability, blood compatibility and separation permeability are needed. Similarly, the improvement of people’s living standards also requires clothing materials to be softer and more comfortable, with brighter colors and more special styles. They are not only beautiful but also have health and hygiene functions, sports and leisure waterproof and breathable functions, so as to meet the needs of people at different levels of life.
Therefore, when selecting raw materials, you must first determine the type of raw materials based on the purpose and performance requirements of the designed fabric; then select and determine the specifications of the raw materials (such as length, fineness, cross-sectional shape, etc.) based on the requirements of the equipment used for processing.
2. Yarn design If the weaving or knitting method is used for production, the yarn must be spun first. The design content of the yarn includes: the fineness, twist and twist direction of the yarn. The design principles are as mentioned in the previous chapter.
If making non-woven fabrics, there is no need to go through the yarn form, the fibers can be formed into a web.
3. Organization and density design If the weaving method is used for production, the organization and fabric density must be closely coordinated. There are many interweaving points in the circulation of the plain weave tissue, and the equal support surface is easy to achieve a tight level, and a smaller warp and weft density can be used; the satin weave type is easy to obtain the warp (weft) support surface effect, when designing the warp (weft) support surface fabric , using satin weave can choose smaller warp and weft density.
There is no organizational factor in the design of nonwoven fabrics, only fiber web ration and reinforcement methods and processes are considered.
There are many types of high-tech fibers with different properties, so there are various forms of production and processing. When designing, all elements of the fabric and the production process must be taken into consideration.
2. Design and production of acupuncture dust filter materials
(1) Raw material selection
According to the main requirements for the performance of the filter material, the fiber raw materials should have chemical resistance, heat resistance, and friction resistance. , high strength and other characteristics.
AAA flame retardant fabric mesh KY, 7II56U65