Journal of Textile Research ›› 2023, Vol. 44 ›› Issue (03): 231-238.doi: 10.13475/j.fzxb.20211111408

• Comprehensive Review • Previous Articles     Next Articles

Research progress of supervision and inspection system for recycling waste textiles

HAN Fei1(), LANG Chenhong2, QIU Yiping3   

  1. 1. Shanghai Institute of Quality Inspection and Technical Research, Shanghai 200040, China
    2. College of Textiles and Apparel, Quanzhou Normal University, Quanzhou, Fujian 362046, China
    3. College of Textiles, Donghua University, Shanghai 201620, China
  • Received:2021-12-01 Revised:2022-04-12 Online:2023-03-15 Published:2023-04-14

Abstract:

Significance The direct disposal of textiles for daily use leads to double pressures of environmental pollution and resource waste. Under the macro environment of national promotion for energy conservation and emission reduction and public participation in waste sorting, the recycling of waste textiles becomes a necessary condition for the sustainable development of the textile industry. Relevant policies were issued nationally, but the management of waste textiles was different from place to place. Coupled with the occurrence of market chaos, many consumers have insufficient understanding on recycling waste textiles, and low support for the products made from tecycled textiles. The quality of the recovered waste textiles and the quality of products from recycled textiles seem to be the key to the sound development of circular economy in the textile industry. With the aim to stabilize the quality of remanufactured products from waste textiles, standardize market order, and improve the credibility of the public, it was of great significance for a supervision and inspection system for recycling waste textiles to be established.

Progress According to an in-depth analysis of the present situation about the waste textiles legal system, waste textiles were classified as solid wastes, which are regulated by laws of environmental protection. Based on international experience and the present domestic situation of recycling, a strategy to further improve the system was put forward. It is more appropriate for waste textiles to be separated at the household level and collected separately. The existing standard system cannot fully cover the categories of remanufactured products. Some national mandatory standards explicitly prohibit the use of waste textiles, which hinders the re-use of waste textiles. The latest research achievements of the inspection and testing technology of waste textiles were described, including the application of infrared spectroscopy in sorting process and qualitative analysis of regenerated fibers. In some studies, it was found that infrared spectroscopy has good applicability in the rapid detection of cotton, polyester and wool/cashmere fibers in waste textiles, which is able to effectively improve the detection efficiency and reduce the labor cost. Furthermore, industry autonomy based on school uniforms, military uniforms and work uniforms was introduced. It is necessary to realize industry autonomy through the extension of producer responsibility.

Conclusions and Prospect The management of waste textiles in China is still at the primary stage of the legal system, and the quality control of waste textiles in standard specifications has not formed a close-loop management. Therefore, the laws and regulations of waste textiles need to be specialized and the standard specifications need to be systematized. The regulations on recycling of waste textiles should be formulated, the application of waste textiles should be widened, and the inspection and testing methods of waste textiles should be strengthened. For the future development trend of recycling waste textiles, the detection technology should be innovated with accuracy, timeliness and online as the main factors. The social supervision comes from the consciousness of the industry and even the whole people. Finally, the review pointed out that the legal system, standardization system and social supervision are whole, and accelerating the improvement of national environmental protection awareness is the key to promote the development of waste textiles recycling economy and realizing remote cloud automated production.

Key words: waste textile, standard system, infrared spectroscopy detection, regenerated fiber identification, recycling economy, supervision and inspection system

CLC Number: 

  • TS199

Tab.1

Laws and regulations on recycling economy of waste textiles"

名称 实施时间 修订时间 条款内容
《中华人民共和国清洁生产促进法》 2012年
7月1日
2012年 控制污染物排放量,鼓励购买、使用节能、节水、废物再生利用的产品
《中华人民共和国环境保护法》 2015年
1月1日
2014年 企业应采用废弃物综合利用技术和污染物无害化处理技术,减少污染物的产生
《中华人民共和国循环经济促进法》 2018年
10月26日
2018年 明示减量化、再利用、资源化具体内容
《再生资源回收管理办法》 2019年
11月30日
2019年 强调废棉等再生资源的回收
《中华人民共和国固体废物污染环境防治法》 2020年
9月1日
2020年 坚持减量化、资源化和无害化的原则

Fig. 1

Standard system framework for waste textiles"

Tab.2

Characteristic amino acids of regenerated protein fiber"

纤维种类 特征氨基酸及其含量 占总氨基酸
含量比例/%
羊毛纤维 谷氨酸15.06%,精氨酸10.42%,半胱氨酸9.90%,丝氨酸8.26%,亮氨酸7.36% 51.00
桑蚕丝
(丝素蛋白)
甘氨酸37.18%,丙氨酸25.84%,丝氨酸13.03%,酪氨酸10.81% 86.86
牛奶纤维 谷氨酸24.47%,酪氨酸10.30%,亮氨酸10.21%,脯氨酸8.39% 53.37
大豆蛋白纤维 谷氨酸20.62%,天冬氨酸11.93%,亮氨酸9.21%,甘氨酸8.6%,丙氨酸7.63% 57.99
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