Chitosan, known for its antibacterial property, is derived from the exoskeletons of crustaceans such as crabs and shrimps. Chitosan fibre is made by wet spinning technology. However, during the spinning process the yarns exhibit a tendency to lock or wind together due to the material’s high electrostatic discharge. This creates mechanical challenges and leads to a high level of wastage in the production process.
To eliminate the existing spinning limitations of chitosan yarn, this project employed the triboelectric electrostatic theory to modify the spinning machine slightly. Results show that the desired properties of the yarn (anti-bacterial, elasticity, laundering durability and comfort) are largely maintained without creating much loss.
By upgrading the traditional spinning roller into a conductive one and optimizing the spinning parameters, this new spinning system not only solved the winding and wastage problem, but also improved the quality of chitosan yarn in terms of yarn strength and consistency.
A non-exclusive licence covers the knowhow of the modification / fabrication of anti-static roller in the traditional yarn spinning system for the production of chitosan yarn.
|Gold Medal in the 44th International Exhibition of Inventions of Geneva (2016)|
|Related ITF project|
|Research Start Date||2014-03-31|
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
Hismer Bio-technology Co., Ltd.