Wet Spinning Fibre

BRIEF TECHNOLOGY

Chemically modified cellulose with EDTA fiber was dissolved in precooled NaOH/urea or LiOH/urea or concentrated H2SO4. Chitosan and alginate were added at different proportion and stages to enhance the properties of the regenerated cellulose fibers. Other nanoparticles such as limonite, graphene oxide, graphene quantum dot, magnetite and maghamite were added at different proportion. The cellulose solvent was spin and regenerated in non-solkvent of coagulant bath with mild H2SO4 or (NH4)2SO4 or Na2SO4. The coagulant temperature and its turbulence of the bath were controlled. The long fiber formed were dried using drum dryer or air dry or IR drying method. 

INSPIRATION OF THE INVENTION

Regenerated cellulose fiber has limited applications, which are primarily used in the textile industry. Therefore, the fiber formed can also be used in the medical industry for wound dressing, drug delivery systems and smart textile for censoring purposes.

PROBLEM STATEMENT & CURRENT ISSUES

• Commercial viscose-CMC fiber has high absorbance and strong adherence of the fiber to each other in wet conditions. However, this hinders the production of this product in the typical commercial process.
• Cellulose is an ecologically friendly material that causes various microbes to grow and produces an unpleasant smell.
• Uneven distribution of metal/inorganic material in the cellulose had caused a major disadvantage for it to be used in the e-textile industry.
• Low dissolved cellulose yield by using alkali/urea solvent had increase cost for raw material of the cellulose.

INVENTIVENESS  & NOVELTY

Cellulose dissolved in one-step precools dissolution process.

The addition of organic and inorganic materials is to boost the application of the product.

USEFULNESS & APPLICATION

The product can be used in the medical field, electric and electronic, wastewater treatment, etc. 

• In the medical field, regenerated cellulose fiber can be used as wound dressing material. This can be applied to woven and non-woven dressing. 
• Cellulose fiber can also be used for e-textile production, which increased the demand for sport wear because it is more comfortable and user-friendly. 
• For wastewater treatment, woven and non-woven fiber can be used as filtration material. This filter can also be used for air and other applications

IMPACT OF THE PRODUCT

• Offer alternative use of the biomass, especially from the oil palm industry
• Diminish dependency on high-end cotton quality for high-end textile product
• A more sustainable product means a greener economic values are embarked.

MARKET POTENTIAL 

Textile, wastewater treatment, wound dressing etc.

TRL :  5

MARKET POTENTIAL 

• Plantation for water holding materials/fertilizer
• Sanitary and hygienist: diapers, absorbance sheets (hospital use) etc. 
• Plant pot and decorations

TRL :  5