The Rapid Development Of China'S Textile Industry Plays A Decisive Role In Regenerated Fibers.

< p > in recent years, China's textile industry has developed rapidly, and the waste silk, waste silk and waste materials produced in the production process have increased correspondingly. With the acceleration of the upgrading of < a href= "http://www.91se91.com/news/index_q.asp" > clothing > /a, the number of waste textiles is increasing day by day, especially plastic bottles entering the bottled market, making fiber and plastic waste growing.

Synthetic fiber plays an important role in the textile industry, especially in the rapid development of polyester industry. However, in the process of bringing scientific and technological progress and comfort to human production and life, the environmental pollution caused by various waste polyester products and polyester wastes is becoming more and more serious.

Vigorously developing waste recycling has become the key technology of "a href=" http://www.91se91.com/news/index_c.asp "textile > /a" or the sustainable development of plastics industry.

< /p >

< p > < strong > regeneration polyester fiber thriving, < /strong > < /p >

< p > the industry usually defines the fibers produced after recycling or reusing waste after production as < a href= "http://www.91se91.com/news/index_f.asp" > recycled fiber < /a >.

As far as varieties are concerned, recycled fibers can be divided into two main categories: regenerated cellulose fiber and regenerated synthetic fiber.

Viscose fiber is the earliest regenerated fiber. After that, new regenerated cellulose fibers, such as Lyocell fiber, cellulose carbamate fiber, superconducting viscose fiber, kapok fiber and bamboo fiber, appeared.

Polyester fiber accounts for about 70% of synthetic fiber, and the application of polyester in the bottle making industry is expanding rapidly. Therefore, regenerated synthetic fiber is mainly regenerated polyester fiber.

< /p >

< p > China's regenerated polyester industry has a history of nearly 30 years.

In twenty-first Century, with the development of technology, gradually developing bottle flake as the main raw material or foam material as auxiliary material, producing regenerated polyester staple fiber, two dimensional hollow fiber, three dimensional crimp hollow fiber, regenerated polyester filament and polyester industrial yarn.

At present, the Polytron Technologies Inc is making use of polyester bottles to produce recycled polyester filament POY, DTY, FDY and polyester industrial silk.

In recent years, China's regenerated fiber industry has been developing rapidly, mainly in the southeast coastal area.

In 2010, China's regenerated polyester fiber production capacity reached 6 million 200 thousand tons / year, and has become the world's largest producer of recycled polyester fiber.

< /p >

< p > regeneration of polyester fiber production process there are two main routes: first, the use of bottle material, polyester waste silk and other recycled materials through crushing and granulation direct spinning, known as physical recovery production method; two is the use of polyester polycondensate condensation process of reversible performance, through chemical methods to make recycled polyester depolymerized monomer, and then condensed into high-quality fiber grade polyester chip for spinning, known as chemical recovery production method.

< /p >

< p > recycled polyester fiber, due to its complex raw material sources, often has different colors, different purity, different viscosity, and contains a lot of impurities, resulting in a great difference in material properties. In the past, it was mainly produced by ordinary specification staple fibers.

In recent years, in order to produce high quality regenerated polyester fiber, many key technologies have been adopted in the process and equipment for the characteristics of recycled polyester raw materials.

< /p >

< p > < strong > wide application area, wide market prospect < /strong > < /p >

< p > unlike most of the original polyester products used for spinning and weaving, the use of regenerated products shows obvious diversification trend and is still expanding. At present, its application market has covered non-woven fabrics, carpets, home textiles, automobile textiles and other fields, and nearly 100 kinds of products have been produced.

< /p >

< p > recycled fiber can be used as spinning raw material to make many kinds of textiles, for example, recycled fiber can be used to spin low count yarn or fancy yarn in ring spinning, Detlef spinning and airstream spinning.

The yarn can be woven into plain woven fabric, household fabric, coarse fabric, wipe the automobile dishcloth and all kinds of new fabrics, such as luggage cloth, foreskin cloth, coat, swimsuit, ski suit, water-soluble jacket, knitted T-shirt and so on.

< /p >

< p > nonwoven fabrics made from recycled fibers can be used as interior decoration materials for automobiles.

Needle punched nonwovens can also be used as geotextiles.

There are many manufacturers of nonwoven geotextiles in China, but the main problem is that the cost of raw materials is high and it is difficult to popularize and apply them in large areas.

The recycled polyester fiber needled fabric is cheap and competitive in price.

Therefore, recycled polyester fiber can promote the wide application of our land textile.

At present, Japan has more mature experience in the use of recycled fiber geotextiles.

In conclusion, the application of recycled polyester fiber nonwovens is very extensive, and can be used in building, railway and highway waterproofing materials, planting belts or soilless cultivation, automotive interior materials, taking, furniture and other fields.

< /p >

< p > < strong > lead the consumption trend and contain economic benefits < /strong > /p >

< p > with the increasing tension of crude oil resources, the price of raw materials of polyester fiber has been rising continuously, which provides new opportunities and challenges for the development of recycled polyester fibers.

On the one hand, the price of raw materials for bottle flakes is also rising due to the environment of raw materials market. On the other hand, the prices of industrial necessities such as water, electricity, coal and so on are increasing day by day, and labor costs have risen sharply.

This seriously squeezed the profit margins of the chemical fiber industry, and put forward higher requirements for regenerated polyester fiber production enterprises, that is, keeping pace with the development front of new technology, improving the recycling process preparation of bottle grade raw materials in real time, speeding up the adjustment of product structure, expanding the application fields of recycled polyester fibers, and leading them from the past simple and extensive nonwoven fields to the high-end products of wearing type.

< /p >

< p > with the increasing consumption of polyester and the increasing awareness of environmental protection, the problem of recycling polyester wastes has attracted more and more attention.

To achieve high efficiency and low cost recovery, we should start with the characteristics of waste materials, and effectively combine the cost of recovery with the value of the final product, so that we can really achieve value for money.

< /p >

< p > at present, the production of recycled polyester fiber with polyester waste can reduce costs and increase economic benefits, while establishing waste products organic cycle.

It is of great significance for the sustainable development of chemical fiber and plastics industry to achieve circular healthy operation.

< /p >