The Green Machine - Post-consumer textile recycling by an eco-friendly hydrothermal treatment method
- Detailed Technology Description
- Garments are often made from a blend of different fibres in order to improve fit, style, comfort and longevity. As yet no commercially viable separation and recycling technologies are available in the industry for the most popular blends such as cotton and polyester blends.
This project has developed an efficient hydrothermal treatment method to decompose cotton into cellulose powders, hence enabling the separation of the polyester fibres from the blends. The separation process uses only heat, water and less than 15% of green chemical with a recovery rate of over 97% for polyester fibres in 2 hours. The quality of the polyester fibres is maintained permitting fibre-to-fibre recycling.
-Silver Award in the 2017 Hong Kong Green Innovations Awards
-Gold medal in the 46th International Exhibition of Inventions of Geneva (2018)
-Gold award in 2019 Asia International Innovative Invention Award
- Type of Cooperation
- Application Date
- Application No.
- Hong Kong
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