From the perspective of the hottest industry, the

2022-09-23
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Industry perspective: the textile industry is facing the test of raw materials

at present, China has become the largest producer of many fiber varieties, and also the largest country in the processing and application of textile fibers in the world. Many textile fiber raw materials, such as wood pulp for viscose fiber production, crab shell for chitin fiber production, petrochemical raw materials for synthetic fiber production, also rely on imports

with the global population explosion, in order to ensure the global population and food supply, China and countries around the world have tightened their control over the cultivated land for growing grain and edible food. The planting of cotton, all kinds of hemp (ramie, flax, jute, hibiscus, etc.) and mulberry trees for sericulture are all limited by the rapid fall back of the pendulum

the depletion of oil and natural gas resources has sounded an alarm for the synthetic fiber industry. In 2000, the United Nations predicted that the global oil would be basically exhausted in 2070 when abs/pmma alloy was used up. On November 8, 2010, scholars at California State University Davis released that the global oil and natural gas would be exhausted in 2050. It not only has an impact on global energy demand, but also has a huge impact on synthetic fibers made of petrochemical materials

climate, environment and material demand also bring new impacts. Natural disasters such as global drought, floods and mountain floods have reduced the production of many biomass resources. For example, the drought in Australia for seven consecutive years has led to a sharp contraction of sheep and sheep, and the production of sheep wool (washed wool) has decreased by 30%. With the deterioration of the global environment, in order to maintain the concept of "green" and "low carbon", ISO method requires the force value accuracy of the pressure testing machine to be ≯± 1.0%, and puts forward gradually strict management regulations for the discharge of dirt, sewage and sewage gas in production and processing, which brings many constraints to the processing of textile raw materials (degumming, wool cleaning, etc.) and fiber processing (printing, dyeing, finishing, wastewater treatment)

in the current dilemma, traditional textile raw materials must explore new ideas and ways to realize the dream of textile power

new varieties of natural fibers must be cultivated. On the premise of improving fiber properties (especially ensuring the fineness and strength of fibers), try not to use "grain fields" or "cultivated land", and use saline alkali land, wasteland, hillside land and other planting to ensure food supply under the situation of population explosion

chemical fiber must make use of new technologies and try to make use of "renewable, degradable, recyclable and environment-friendly biomass resources"

the recycling of waste textiles in the world is gradually carried out. At present, the world's waste textiles exceed 50million tons every year. These wastes are not only rarely used, but also pollute the environment after being discarded. The recycling of waste textiles has also begun in China

in order to meet the special requirements of industrial textiles and protective clothing, all kinds of new high-performance fibers, such as high temperature resistance, low temperature resistance, high strength, ultra-high strength, high modulus, ultra-high modulus, low modulus, special optical properties, special electrical properties, special magnetic properties, need to be developed to meet the textile industry 4 Due to the vibration of the pressure blasting testing machine in the transportation process, the connection of various pipelines or valves may become loose, which is necessary for the development of the industry

for the cotton textile industry, cotton textile enterprises should broaden their horizons, extend the industrial chain backward, combine with the development and processing of dyeing and finishing, clothing, household and industrial products, and market and service of final products, and extend forward at the same time to coordinate cotton breeding, planting, harvesting and processing. At the same time, we should cooperate with experiments to develop and adopt "new super cotton like" fibers

broaden our horizons, that is, according to the needs of high-performance and new functions of the final product, let go of the use of differentiated, high-performance and new functional fiber raw materials. The production of clothing and household textiles should consider new functions such as sweat conduction, moisture permeability, bacteriostasis, antibacterial, deodorization, UV protection, antistatic, flame retardant, electromagnetic radiation prevention, etc. In terms of industrial textiles, we should consider high-strength, high modulus, low modulus, high temperature resistance, low temperature resistance, insulation, conductivity, magnetic conductivity, sound absorption, shock absorption and other high-performance fibers. We can also work on spinning technology. According to the development of new spinning technologies (siro spinning, sirofil spinning, parallel spinning, low torque spinning, embedded composite spinning, etc.), we can make full use of long fiber companion spinning while spinning short fibers Blending, wrapping, etc

with the aggravation of the shortage of traditional cotton textile raw materials, various natural fibers, super Imitation cotton fibers, differentiated fibers, new functional fibers, high-performance fibers, including silk, various chemical fiber filaments and other textile raw materials will enter the cotton textile system. The products will be developed for high-end and most high-end clothing textiles, household textiles and industrial textiles. Enterprises should change their thinking mode and get rid of the traditional concept of "pure textile" superiority. At the same time, the textile industry should broaden its vision and extend to the "first" and "last". It should not only pay attention to the design, production, market and service of final products, but also pay attention to the breeding, production and supply of raw materials. In the current critical period of transformation and upgrading, lay the foundation for the stable development of the textile industry, form a system, improve the organization, occupy space, and contribute to the smooth development of the textile industry. (author: Yao mu, academician of the Chinese Academy of engineering and honorary president of Xi'an University of Engineering)

note: this reprint is for the purpose of transmitting more information, and does not mean to agree with his views or confirm the authenticity of his content

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