Textile Waste and Chemical Recycling Applications


Sağırlı F. Z.

International Technical Textiles and Nonwoven Technologies Magazine, sa.76, ss.56-62, 2023 (Hakemsiz Dergi)

Özet

Nowadays global fiber requirement per capita dramatically increases due to the fast fashion trends, consumer purchasing behaviour and population growth rate in the world. The fashion industry uses 60% of global fiber consumption. In 2022 ~100 billion new garments produced and 92 million tons discarded as waste. Unfortunately, only 1% will be recycled and produced as a new garment. Textile wastes are responsible for 10% of global carbon emission and 20% of total water consumption. Recycled fiber rates are ~1% for cellulose and 15% for polyester and these rates have to be increased in order to eliminate global textile waste, microplastics, drinking water usage for cotton growing and GWP (global warming potential) effect, which is originating from pesticides, energy and chemicals. The efficiency of mechanical recycling is 30% on the other hand the efficiency of chemical recycling is higher which is between 80-95%. Due to these disadvantages of mechanical recycling permanent solutions should be find for sustainable upcycling or equal new products.  Chemical recycling technologies of cotton showed that a new regenerated cellulose fiber can be obtained from recycled materials which has equal properties with virgin ones and their GWP values are equivalent to virgin fibers.

There are several researches about the production and separation process of cotton, polyester and blends by chemical recycling of textile wastes.

The organizations and companies aimed to reduce greenhouse gas emissions by 45% by 2030 with recycled textile production.