Metal Organic Framework for Fabric Surface Modification

With the growing concern of the environmental impact generated from the fashion and textile industry, there is a shift from using synthetic dyes to natural dyes. However, natural dyes have poor colour affinities with fibres and fabrics. Mordants with harmful and heavy metal and industrial salt is required to fix the colour. This project develops a mordant-free and salt-free approach for effective natural coloration.

• The application of metal organic framework to modify fabrics is an innovative, mordant-free, and salt-free approach to encourage the use of natural dyes over harmful synthetic dyes.
• The metal organic framework are made of specially found combination of metal and ligand. Various types of metal organic framework are tested and verified to select the optimal combination to boost colour uptake.

• Adding metal organic framework to fabrics can enhance natural dye uptake by at least 50% than conventional natural dyeing method. The test results have passed AATCC standards in colourfastness.
• Fabrics with metal organic framework applied have anti-bacterial efficacy to prevent skin irritation, skin infection, and damage to human lungs.

• Gold Medal in the 48th International Exhibition of Inventions of Geneva (2023)

• Enhancing colour uptake of natural dyes
• Mordant-free and salt-free approach to aid natural dyeing
• Offering anti-bacterial functions to fabrics against skin and lungs infection

• 22023068521.0 (Hong Kong)
• PCT/CN2023/089362 (PCT)