Project Database

Development of Antimicrobial and Water Repellent Treatments for Cotton and Wool Knit Fabric by Plasma Technology

Natural fibers, such as cotton and wool, provide an environment with heat, moisture and oxygen that facilitates the growth of microorganisms and ultimately leads to malodor and deterioration of garments. Moreover, these materials are likely to absorb water and thus facilitate the growth of microbial. To solve these problems, chemical finishes are utilized for antimicrobial and water repellent treatments, where chemicals are typically applied through wet processing. Large amount of water and huge cost for wastewater treatment would be required for the wet processes. Therefore, a safe and environmentally friendly method should be developed to attain sustainability. Plasma technology, a pollution free, safe, cost effective and waterless process, can be a new approach for antimicrobial and water repellent treatments. It is a well-developed process and can be applied on a wide range of materials. The treatment only applies on the surface and therefore the bulk properties of the material can be retained. Recently, an industrial-scale plasma system has been invented by HKPC for the treatment on minimizing pilling. In this project, antimicrobial and water repellent treatments on cotton and wool with plasma technology will be developed using a small-scale plasma system and this will be the foundation works to extend the applications of the industrial-scale system for garments.

Project No. (ITC) ITP/084/15TP
Project Type Platform
Project Co-ordinator Dr. LAM Chi Chung
Research Institute Hong Kong Productivity Council
ITF Amount HK$ 1,040,000
Start Date DD/MM/YY 2016-01-01
Completion Date DD/MM/YY 2017-09-30
Sponsors
Lee Hing Textile (International) Ltd
Tien-Hu Knitting Factory (Hong Kong) Limited
IP Number
2019107131069
2019107130992