Project Database

Hydrothermal Treatment and Dissolution Treatment to Recycle PET and Cellulose from the Cotton and PET Blends

Nowadays, polyester and cotton are the most two demanding fibre types. By 2015, 54.5% of textile is polyester while 28.4% is cotton, textiles waste increase greatly due to high demand on textile products. By 2013, an estimated of 12.4 million tons of textile waste was generated according to the U.S. Environmental Protection Agency. Over 55% of it had been ended up in either landfill or low equality products. This project aims to conduct the feasibility studies of polyester and cellulose recycling by hydrothermal treatment and dissolution treatment on cotton and polyester blends. The parameter will then be optimized to improve the recycling yield and recycling efficiency. In addition, the feasibility of re-spin the polyester residue will also be conducted.


Gold Medal in the 46th International Exhibition of Inventions of Geneva (2018)
Silver Award in the Hong Kong Green Innovations Awards (2017)
Asia International Innovative Invention Award - Gold Award
Commercialisation Opportunity
Project No. (ITC) ITP/103/15TP
Project Type Platform
Project Co-ordinator Mr. KEH Yee Man, Edwin
Research Institute The Hong Kong Research Institute of Textiles & Apparel Limited
ITF Amount HK$ 4,865,000
Start Date DD/MM/YY 2016-03-31
Completion Date DD/MM/YY 2019-03-29
H&M Hennes & Mauritz (Far East) Ltd
IP Number