There Is A Lot To Be Done In Recycling Waste Textiles.

< p > waste a target= "_blank" href= "http://www.91se91.com/" > textile > /a > products are widely used. Especially in the field of industrial textiles, their advantages are obvious, and there is much to do in terms of their consumption. For example, after the loosening and processing of waste textile fibers, the fiber can reach more than 22mm and can be re woven.

Making industrial textiles such as wall materials, cement reinforcement materials, fire dragons and other industrial textiles has become an export channel to absorb waste textiles.

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Less than half of the "P >" 12th Five-Year "process, the proportion of raw fiber as the raw material of nonwovens products has been getting lower and lower. The six major fields of industry are gradually using regenerated fibers instead of raw fibers.

Widely used in shopping bags, curtains, beds, < a href= "http://www.91se91.com/news/" > textile products < /a > building materials and a target= "_blank" href= "http://www.91se91.com/" > shoes > /a > materials; the use of recycled polyester staple fiber blended with some low melting point fibers to produce hot-rolled nonwovens has been widely used in medical materials, health care, a a, "clothing", "accessories", shoe lining, household decoration, automobile industry, air travel and many other fields. Reclaimed polyester staple fibers have been used in some medical spunlaced nonwovens, and knit fabrics made of recycled polyester staple fibers are used.

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Since P 2002, China's regenerated fiber industry has entered the rapid development stage of capacity expansion and technological progress.

Led by the General Logistics Department's Quartermaster Equipment Research Institute, China's a href= "http://www.91se91.com/news/index_c.asp" > textile industry < /a > Federation, China Resources Comprehensive Utilization Association and Beijing Institute Of Fashion Technology jointly promote recycling of waste textiles. Now, there are great progress in industrial planning, legislative process and application docking. This journal will be divided into two parts, presenting some research results.

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< p > < strong > different fiber components were classified into their respective industrial uses < /strong > < /p >

< p > waste textiles are not only of many varieties, but also involve various kinds of fiber components, such as cotton, wool, silk, hemp, chemical fiber and blended fabric.

Usually the waste textiles are made of natural fibers such as cotton, wool and hemp. After recycling, they can be made into composite materials, thermal insulation materials and filling materials.

After reprocessing, chemical fiber clothing can be used as regenerated fiber and made into industrial textiles, such as filter screen, waterproof material, composite material and packaging material. It is used in building, environmental protection, agriculture, pportation and other fields.

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< p > < strong > the amount of waste textiles in China will exceed 1 billion tons < /strong > < /p >

< p > according to the average life expectancy of < a href= "http://www.91se91.com" > clothing < /a > 3~4 years, if our country per capita purchases new clothes on the basis of 5~10 every year, every year each person will abandon 3~5 old clothes.

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< p > China's urban average annual output of garbage is 440 kilograms, and the average annual total garbage volume is 1.5 billion tons.

According to statistics, the waste textiles in China's urban refuse account for 3.5%~4% of the total waste materials.

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< p > according to the prediction of China Resources Comprehensive Utilization Association, by the end of 12th Five-Year, China's a href= "http://www.91se91.com" > waste textiles < /a > cumulative production will exceed 1 billion tons, of which chemical fiber is 70 million tons and natural fiber is 30 million tons.

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< p > 2011, the total amount of waste textiles produced in China amounted to 26 million tons, and the comprehensive utilization rate was less than 10%. Most of them were not properly recovered and utilized.

According to statistics, the daily average garbage disposal of Shanghai residents is 10 thousand and 500 tons, of which 3% of the waste fabric is occupied, and Shanghai is mixed with domestic waste every year, and the amount of waste fabric that has been burying and incineration is up to 130 thousand tons.

In 2011, the total volume of disposal of domestic waste in Guangzhou reached 5 million 40 thousand tons, and the proportion of textile waste to Guangzhou's domestic waste was higher and higher. From 5.88% in 2004 to 10.28% in 2009, Guangzhou's textile waste can reach hundreds of thousands of tons in 1 years.

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< p > according to the average life expectancy of a garment 3~4 years, if our country every year on the basis of the purchase of 5~10 new clothes per person per year, each person abandons 3~5 old clothes each year, the annual output of our old clothes of 1 billion 300 million people will reach 3 billion 900 million ~65 billion pieces.

Take cotton as an example, a T-shirt uses about 60 grams of cotton on average, and cotton planting takes up land and uses pesticides.

If the old clothes are recycled or regenerated, they will help reduce the consumption of cotton and alleviate the shortage of raw material resources in China.

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< p > < strong > greatly reduce China's a href= "http://www.91se91.com" > textile raw materials < /a > import dependency < /strong > /p >

During the period of < p > 12th Five-Year, China's textile consumption will increase at a rate of 12%.

At present, China's per capita consumption of textile fiber is 17 kilograms, and will increase to 21 kilograms in 2015.

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During the period of < p > 12th Five-Year, China's textile consumption will increase at a rate of 12%.

In 2011, the textile industry consumed 41 million 300 thousand tons of raw materials, of which more than 60% were dependent on imports.

Due to shortage of resources, China needs to import large quantities of petrochemical raw materials for the production of cotton, wool and synthetic fiber every year, except that mulberry silk need not be imported. China has become a major importer of textile materials worldwide.

At present, China's per capita consumption of textile fiber is 17 kilograms, and will increase to 21 kilograms in 2015.

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< p > it is estimated that with the annual output of 26 million tons of waste textiles and the comprehensive utilization rate of 60%, it can save 9 million 400 thousand tons of chemical fiber (equivalent to the annual output of 12 Yizheng chemical fiber factories) and 4 million 700 thousand tons of natural fibers, thereby saving 18 million 800 thousand tons of crude oil per year (equivalent to half the output of Daqing oil fields), saving about 10 billion 893 million 330 thousand square meters of cultivated land, accounting for 46% of the annual cotton cultivated area, and greatly reducing the import dependence of China's textile raw materials.

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< p > < strong > 95% of textiles in the world can be recovered < /strong > < /p >.

< p > every 1 kilograms of waste textiles can reduce 3.6 kilograms of carbon dioxide emissions, save 6000 liters of water, reduce the use of 0.3 kilograms of fertilizer and 0.2 kilograms of pesticides.

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< p > when old clothes are used as rubbish, if they are burned, they will not only consume energy such as coal and electricity, but also generate a lot of pollutants themselves, including carbon dioxide and ashes after burning.

If landfill is used, not only the land will be occupied, but also the harmful substances produced will pollute the soil and water.

Therefore, old clothes are worn for two times, used as rag or refurbished, and continue to realize their use value and prolong their service life, which can reduce the number of fabric waste and reduce the amount of domestic waste.

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< p > processing waste textiles into < a href= "http://www.91se91.com > recycled fiber < /a >, which can be used as skeleton of composite materials; regenerated fibers that can not be spun for shorter length can be used to make industrial nonwovens for automobile thermal insulation and sofa cushion.

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The P Bureau of International Recycling (BIR) conducted a study at University of Copenhagen in Sweden in 2008. It concluded that every 1 kilograms of waste textiles can reduce 3.6 kilograms of carbon dioxide emissions, save 6000 liters of water, reduce the use of 0.3 kg of chemical fertilizer and 0.2 kilograms of pesticides.

A large number of recycled fabrics are used in the textile industry, which significantly reduces carbon dioxide emissions compared with the processing and production of raw materials.

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< p > now 95% of the world's textiles can be recycled, but most of the waste < a target= "_blank" href= "http://www.91se91.com/" > clothes < /a > are all taken to landfill.

To avoid waste textiles becoming waste, the priority of management is: first, reduce the generation of waste textiles, such as the use of one garment for two times; secondly, the utilization of resources, such as the use of recycled fiber, so as to achieve sustainable recycling of resources. Finally, landfill or incineration can be used for the terminal management of fabrics that can not be reused or reused.

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< p > < strong > saving production is equal to non a href= "http://www.91se91.com" > weaving cloth < /a > 35% energy < /strong > /p >

< p > according to statistics, after recycling each ton of old clothes, it can produce 0.99 tons of nonwoven fabrics, which is equivalent to saving 1.1 tons of textile raw materials, and at the same time saving the energy of producing 35% of the same nonwovens.

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< p > because textile raw materials come from agriculture, animal husbandry and petroleum chemical fiber industry, as a large population in the world, China has a huge consumption of fabric raw materials, and the shortage of resources is a long-term problem.

According to statistics, after recycling each ton of old clothes, it can produce 0.99 tons of nonwovens or 0.99 tons of colored cotton yarn, which is equivalent to saving 1.1 tons of textile raw materials or 0.8 tons of cotton. At the same time, it also saves 35% of the energy produced by the same nonwovens, and saves 20% of the same cotton yarn.

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< p > the textile industry "12th Five-Year" development plan clearly put forward that we should strive to achieve the recycling rate of waste textiles at 20% to 40% at the end of 12th Five-Year. If we want to achieve this goal, we need to deal with waste textiles not less than 10 million tons a year, and nearly 500 recycled production lines can meet the needs of processing.

In this process, the waste textile recycling industry will produce output value of nearly 10 billion yuan.

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< p > < strong > only a few cities in some communities have set up recycling channels < /strong > < /p >

< p > the "waste clothes recycling box" has entered 500 communities in Shanghai. In 2012, the recovery rate of 996 recycling boxes was 305 tons, accounting for 3% of the waste clothes produced in Shanghai.

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< p > there are only a few cities in our country, and some old communities are set up.

From the cities where the old clothes recycling boxes have been set up, the three cities of Shanghai, Hangzhou and Shenzhen Baoan District have achieved remarkable results. The amount of recycling is large, and they are donated to the public welfare organizations after recycling the residents' idle clothes, thus realizing the two use.

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"P", since 2010, the Shanghai greening and City Management Bureau began to pilot the old clothes recycling in the city. At present, the "waste clothing recycling box" has entered 500 communities in the 11 districts of Shanghai, and the recovery of 996 recycling boxes in 2012 is 305 tons, accounting for 3% of the waste clothing produced in Shanghai.

Since April 2012, the Hangzhou municipal government has launched the old clothes donation reception work. In the 50 street communities of the city, the donation points for old clothes were set up, breaking the old "once a year" reception frequency and recycling old clothes according to "once a month".

Since December 2012, Shenzhen Baoan District has set up 100 clothing recycling bins in more than 50 communities, recycling 2143 kilograms of old clothes, and donating 335 kilograms of clothing through public welfare organizations.

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< p > < strong > circular economy review the product life cycle < /strong > /p >

< p > 1990, British environmental economist Perth and Turner used the term "circular economy" for the first time in his book "natural resources and environmental economics".

In 1996, Germany promulgated the circular economy and waste management law. For the first time, it used the concept of circular economy in the national legal texts.

To re-examine the product life cycle under the guidance of circular economy, we should not only consider the production, sale and consumption of products, but also consider the development and acquisition of raw materials and energy before production, as well as the disposal of wastes after consumption.

Therefore, the life cycle of products is expanded into a closed cycle process of "resource production, sale, consumption, waste conversion into renewable resources".

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< p > circular economy takes the efficient utilization and recycling of resources as the core, pforming the material flow mode from the traditional "resource product waste" single program mode to the "resource product consumption renewable resources" closed cycle mode.

Through the reduction of materialization principle of "reduction, reuse and resource utilization" (3R principle) in the production and service process, the maximum utilization of resources and the minimization of waste discharge can be achieved, so as to achieve the goal of saving resources and improving the ecological environment.

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< p > from the perspective of circular economy, a < a href= "http://www.91se91.com" > clothing > /a > into the abandonment stage. Only by realizing the reuse of 3R (reuse) and recycling (recycling), that is, the utilization of renewable resources and the utilization of energy (recovery), can we promote the coordinated development of economy, environment and society in a closed cycle mode, that is, the "material product consumption renewable resources" recycling mode of material resources.

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< p > at present, there are mainly 4 ways of disposing waste textiles at home and abroad, namely, reuse (two times), recycling of resources (recycled fiber processing), energy utilization (incineration) and landfill (when garbage disposal).

Among them, reuse (two times) and resource recycling (recycled fiber processing) are regarded as recycling of waste textiles as recyclable and renewable resources.

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