Project Database

Developing a Pumice Stone Free Washing Machine for Denim

Garments washing is commonly used to modify the appearance, to impart worn-out look and to improve the comfort feeling of denim garments. Among various methods, stone washing has attracted considerable interest over the past several years. However, there are several constraints for stone washing including: (i) destructive to equipment and the fabric itself; (ii) extra handling time and cost to remove the entrapped stone residue from denim garments; (iii) sludge may clog the machine drainage passages and (iv) harmful to environment. Hence, researchers have tried to eliminate or reduce the use of pumice stone to obtain the desired effect and enzyme treatment was introduced. However, the performance of enzyme washed garments is not as good as the stone washed garments. In order to tackle the problems of these two techniques, the pumice stone free washing machine will be developed in this proposed study. Different abrasive components varying in surface area, hardness and roughness will be assembled into the drum of the washer. They can be used to achieve different degree of fading effect for different kinds of materials. With the help of this pumice free washing machine, it can produce a very unique effect for destroy wash in a more efficient, economical and environmental friendly way.

Project No. (ITC) ITP/054/18TP
Project Type Platform
Project Co-ordinator Dr. KAN Chi-wai
Research Institute The Hong Kong Polytechnic University
ITF Amount HK$ 1,443,000
Start Date DD/MM/YY 2018-12-17
Completion Date DD/MM/YY 2021-03-16
Sponsors
Cheong Tai International Holdings Ltd
Waygar Chemicals Co., Ltd
IP Number
202110864058.0