Hong Kong, China – The seminar took place on March 20, 2014 by The Hong Kong Research Institute of Textiles and Apparel at Seminar Room, Hall 1D, Hong Kong Convention and Exhibition Centre.
The seminar introduced several sustainable solutions for the textiles industry. Dr K C Ho, Director, Research and Development, The Hong Kong Research Institute of Textiles and Apparel gave an account of a dyeing technology which uses waterless supercritical carbon dioxide.Traditional dyeing processes require a huge amount of water which poses a serious threat to the environment. The supercritical carbon dioxide dyeing system makes use of carbon dioxide which is emitted from industries for dyeing when it is in a supercritical state. No water and chemicals are used in the whole process. The dyestuff and carbon dioxide can be reused. It can solve the pollution problem of the traditional dyeing method.
Another issue is the “food waste-based biorefinery development” shared by Mr Kwan Tsz Him, Research Assistant of School of Energy and Environment in City University of Hong Kong. According to government figures, about 3,600 tonnes of food waste is disposed of in Hong Kong every day, accounting for nearly 40% of all Municipal Solid Waste (MSW) disposal. If waste levels continue to increase at current levels, the existing landfills will be all exhausted by 2020. Mr Kwan talked about the valourisation of food waste for sustainable production of chemicals, materials and fuels, discussing the potential of microbial bioconversion as a core unit operation for the production of bio-colorant and bio-polymer in textile applications. Case studies were put forward to illustrate the prospects of such bio-based processes.
Source: The Hong Kong Research Institute of Textiles and Apparel (HKRITA)