Project Database

Elastomeric Fiber Separation by a Biosolvent Dissolution Method

The project aims to develop a biosolvent dissolution method for removing spandex from the following types of woven/knitted blends:

PET, Spandex (less or equal to 25%)
Nylon, Spandex ( less or equal to 25%)
Cotton, Spandex (less or equal to 25%)

Optimize the conditions of parameters for achieving a target separation efficiency of spandex ≥ 95%.
Characterize the molecular weight of the PET, nylon and cotton recovered.
Investigate the recovery method of the biosolvent, e.g. vacuum evaporation.
Estimate the operating cost and perform sustainability impact assessment.

Project No. (ITC) ITP/046/19TP
Project Type Platform
Project Co-ordinator Mr. KEH Yee Man, Edwin
Research Institute The Hong Kong Research Insititute of Textiles & Apparel Limited
ITF Amount HK$ 3,650,000
Start Date DD/MM/YY 2020-03-31
Completion Date DD/MM/YY 2022-03-30
Artistic Milliners (PVT) Ltd.
GAP International Sourcing Ltd.