Cotton and polyester blended fabrics can be recycled through hydrothermal treatment. However, the PET fibres obtained from recycling retain most of its original colour after the hydrothermal treatment. PET fibres of different colours cannot be easily mixed or woven together to form new textiles. It is necessary to decolour the PET fibres before processing and re-dyeing.
Established in 2006, The Hong Kong Research Institute of Textiles and Apparel (HKRITA) is funded by the Innovation and Technology Commission of the HKSAR government, and hosted by The Hong Kong Polytechnic University.
HKRITA has achieved research deliverables over the years around our research clusters targeting in sustainability, industry advancement and social benefits through our centre-owned research teams and laboratories as well as collaborations with industry partners and institutions.