The Yarn Industry Needs To Find New Resources And Enter New Fields.

On the one hand, the shortage of fiber raw materials and the high cost of production, on the other hand, have been hit by foreign enterprises in the middle and low end products area.

There are many difficulties.

Where is the way out for China's yarn industry? Spinning enterprises have already felt it.

Urgency, but how to turn it?

Yao Mu, academician of the Chinese Academy of engineering, analyzed the constraints of the development of China's yarn industry in the "Rizhao Yuhua Cup" 2012 Forum on Chinese yarn quality and new product development technology held recently.

Development.

He pointed out that we must use new fiber resources, combine new design ideas and new processing technologies, and develop high-performance textiles with new functions, occupy new markets and enter new era.

Technology innovation leads yarn industry

Since the two quarter of last year, yarn market demand has shrunk, exports have declined, inventories of enterprises have increased, sales prices have dropped, and many SMEs have to stop production or halt production.

Under such circumstances, some enterprises are pessimistic about the industry prospect, and some textile enterprises bosses have chosen to change careers.

In response, Yao Mu said that according to the forecast issued by the United Nations, the global textile fiber processing volume in 2050 will increase from 80 million tons to 2.53 million tons per year, of which 41 million 500 thousand tons of clothing fiber, 16.4%, household fiber 41 million tons, accounting for 16.2%, and industrial fiber 170 million 500 thousand tons, accounting for 67.4%.

Judging from this trend, China's yarn industry will continue to develop.

Yao Mu analysis pointed out that in recent years, China's yarn industry has made a breakthrough development.

Spinning process is still an important part of the textile industry. Spinning technology continues to deepen. Ring spinning continues to develop embedded composite spinning and flexible spinning on the basis of compact spinning, siro spinning, Siro wire and cable spinning. Meanwhile, many new spinning technologies such as parallel spinning, jet spinning, jet spinning, rotor spinning, vortex spinning, friction spinning and so on are emerging.

At the same time, the processing methods of false twist deformation, air deformation, heat flow deformation, multiple deformation processing, natural colored cotton, dyed colored cotton spinning, many kinds of fancy yarns and fancy yarns have been widely applied in China.

With the rapid development of cotton spinning, worsted spinning has occupied the international high-end and created semi woolen worsted technology. Linen spinning continues to develop in wet spinning, and dry spinning has taken a place.

In the manufacture and supply of new high-precision, automatic and continuous spinning equipment, China has occupied high-end: rapid development of automatic changing cylinder, roving automatic doffing, spinning automatic doffing, blowing and carding, rolling and winding, coarse and fine connection, fine connection and so on; two times twisting, three times twisting, four times twisting and twisting machine technology has been realized;

Many spinning machines are controlled by computers, and the technologies of high speed, high efficiency, low vibration, energy saving, consumption reduction and noise reduction are widely promoted.

With the innovation of science and technology, the yarn industry is facing the coming of the new era.

Fiber materials restrict industry development

According to Yao Mu analysis, the development of China's yarn industry is facing a series of constraints, including shortage of textile fiber raw materials, rising labor costs, increasingly stringent environmental protection requirements, and deterioration of the quality of natural textile fiber raw materials.

Because of the global population explosion, the area of raw materials for agricultural products is limited, and the planting area of fiber materials is limited.

In order to protect the environment, resources such as wood and cotton lint are restricted, and the resources of regenerated cellulose fiber are shrinking.

At present, 97% of synthetic fiber is used for chemical raw materials, while the United Nations predicts that by the year 2050, oil and natural gas energy with two times global exploration reserves will be exhausted.

In the past 30 years, domestic labor costs have risen sharply, plus the requirement of doubling the minimum wage during the "12th Five-Year" period, China's textile industry has no competitive advantage in low or medium and low grade products.

China's per capita fresh water resources are only 24% of the global average, the dependence on foreign oil is 54.8%, and the energy and resources gap is very large.

Therefore, saving energy, reducing pollutant discharge, saving water, reducing consumption of various materials, and being environmentally friendly have become an important part of China's sustainable development, and these requirements can not be ignored for spinning cost.

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The deterioration of the quality of natural textile fibers seriously affects the production of high-grade textiles.

Over the past 10 years, cotton has been widely promoted and the fiber has been thickened.

The cashmere yield of goats was increased by several times, increasing from 150 grams per year to 500 grams or more, and up to 900 grams, and the average diameter of cashmere fiber has increased by more than 12%.

Ramie increased yield while fiber thickened and itchy.

In the past 10 years, the cocoon layer rate of cocoons in China (that is, the ratio of 100 kg fresh cocoon to factory silk) dropped from 38% to 25% at present.

The reason is that silkworm chrysalis is becoming larger and larger but cocoons are becoming thinner in fresh cocoons.

Behind the increase of the weight of a single cocoon, that is, the rapid increase of cocoon production, it is the rapid increase of the cost of Chinese silk raw materials and the rapid reduction of silk quality.

All these seriously affect the production of high-grade textiles.

New fiber resources bring new space

The pformation and upgrading of the yarn industry should be constantly innovated in terms of equipment, technology, design and management. New equipment with high automation, less employment, energy saving and consumption reduction must be adopted, while basic theoretical research should also be emphasized.

We should attach importance to product design, make full use of all kinds of new fibers developed in China to produce high performance and new functional textiles, improve product grades and added value, and achieve multiple varieties, small batch and fast delivery.

Not only should technological innovation and equipment upgrade be pferred from the east to the central and western regions, but also the product mix should be adjusted.

We will introduce high-grade, super high-end products from developed countries to China, while low-grade, low-grade products will be pferred to South Asia and Southeast Asia.

Yao Mu believes that one of the important pillars of the new product development of the yarn industry is the development of new textile materials.

Attention should be paid to differential fiber, including fine fiber from natural fiber, such as superfine cotton fiber, superfine wool fiber, superfine ramie fiber, superfine polyester, nylon, viscose, copper and ammonia, polypropylene fiber, hollow fiber and profiled fiber.

Dyed natural fibers (multicolor blends, blended blends, rainbow yarns), raw liquor coloured chemical fibers, and high crimp fibers.

New varieties of fiber: non-toxic or low toxic hemp fiber, kapok, fox hair, wussuri raccoon wool, lotus pole fiber, island cotton upland woody species.

New functional fibers: wrinkle resistant fiber, sweat inducing moisture fast drying fiber, super absorbent fiber, antistatic fiber, UV resistant fiber, bacteriostatic, antibacterial, deodorant fiber, far infrared radiation fiber, flame retardant fiber, anti dropping fiber, electromagnetic radiation resistant fiber, negative oxygen ion release fiber, mites fiber and mosquito repellent fiber.

High performance fiber: high strength, high modulus fiber, ultra-high strength, ultra-high modulus fiber, high temperature resistant fiber, low temperature resistant fiber, conductive fiber, light guide fiber, electrical insulating fiber, magnetic conductive fiber, chemical resistant fiber, composite functional fiber.

Many high-performance fibers have many functions, such as high strength and high modulus fibers, most of which have high temperature resistance and insulation properties.

For example, polytetrafluoroethylene fiber has high temperature resistance and low temperature resistance, high insulation performance and strong chemical resistance, not only acid resistance, alkali resistance, oxidation resistance, but also very low friction coefficient.

Yao Mu pointed out that the only way to solve the shortage of textile fiber raw material resources is to make every effort to use renewable, degradable, recyclable and environment-friendly biomass resources.

Natural fibers such as cotton, wool, linen and silk will not be cultivated without grain and cultivated land. New natural fiber varieties will be developed and planted in saline alkali soil, wasteland and hillsides.

Regenerated cellulose fibers should be made full use of waste crop straw and new regenerated cellulose fibers, such as alginate fiber, chitin fiber, chitosan fiber, polylactic acid fiber, etc.

Synthetic fibers try to develop coal chemical industry to produce chemical raw materials instead of oil, and strive to develop and utilize abandoned crop stalks and use advanced technology of biological engineering to produce chemical raw materials for synthetic fibers.

Try to develop new varieties, such as kapok in natural fibers, upland woody cotton, horns melon fiber, non-toxic or low toxic hemp, fox velvet and so on.

In addition, the recycling of waste textiles will become an important task for the development of the textile industry.

Yao Mu also suggested that yarn enterprises should broaden their horizons, expand industries, and develop alliances with dyeing, finishing, clothing, home textiles and industrial enterprises. At the same time, industries should be extended, control fiber quality, strive to develop new fibers, and replenish raw materials.