The enterprises at the end of the industrial chain are uneven, and most of the waste textiles are used for dimensionality reduction
From the perspective of energy conservation and carbon reduction, it is of great significance to improve the recycling and harmless of waste textile and promote the efficient utilization of waste textile. However, due to the limitations of technology and cost, the efficient utilization of waste textile is still a difficult problem.
"The recycling methods of waste textile in China mainly rely on the recycling of small vendors, fixed-point centralized recycling in residential areas, etc. The quality of employees engaged in waste textile recycling is uneven, and most of them are operated in partnership with family members. They not only belong to unlicensed operation, but also have no ability to process and produce as raw materials. After waste textile recycling, they are diverted to corresponding production and processing enterprises. " Yang Yinghong pointed out the problems existing in the waste textile industry chain from the recycling end.
"At the waste textile disposal end, under the existing economic and technical conditions, many enterprises simply select and use the usable second-hand clothes and raw materials by classification and classification, and the rest becomes the lowest level waste such as' black material 'and' fire material '. This part of waste should be treated as harmless diversion. But at present, it is known that part of the waste textile is disposed of as dry waste incineration, and the flow direction of some is unknown. " Yang Yinghong said.
Zhao Guoliang also said that the immature production, processing and utilization process led to serious waste of waste textile. He said: "although China's waste textile recycling has a long history, there have been problems such as small scale, backward technology and low added value of products. Some processing and utilization enterprises use low value-added methods to make use of what they feel valuable from the point of view of materials, and the proportion of utilization is particularly low. "
"The most ideal state is to classify the waste textile and use it respectively according to different levels to ensure the recycling rate and high-value utilization of the waste textile." Zhao Guoliang pointed out, "now waste spinning is mostly blended products, which may contain various types and proportions of fibers. For high-value reuse, they need to be separated according to their components, and then recycled and utilized according to different components. At present, the cost of automatic sorting equipment is still high. Many small and medium-sized enterprises directly loosen waste spinning into short fiber flocs by physical method without grading. In fact, some of the waste textiles entering the Kaisong factory have good quality and long fibers, which can be decomposed into some coarse yarns through technology, and then continue to be used as textile raw materials. However, most enterprises at the end of the industrial chain do not have corresponding technologies and equipment. Waste textile is not only used for dimensionality reduction, but also the utilization rate is not high. "
