Enzymatic Solution to Pilling Problem in Textiles

What we normally call Cellulase, is actually a complex of cellulase enzymes – a mixture of three major groups : endoglucanase (EG), cellobiohydrolase (CBH) and cellobiase. Endoglucanases mainly hydrolyze internal bonds in the cellulose polymer, producing new chain ends and thereby causing a considerable decrease in cellulose DP. CBH is needed for complete hydrolysis of crystalline region producing dimers of glucose. CBH enzymes are exoglucanases, which initiate hydrolysis at the chain ends. For textile processing, the most important cellulase enzymes are predominantly EG, CBH.

A test comparing 2% caustic scoured, 4% caustic scoured and Bioscoured cotton using single jersey knitted fabric was conducted by carrying out the processing in a Soft flow Machine, all the samples were bleached with H2O2. The test results are given below.

Bioscoured cotton showed high pilling resistance , lower weight loss and less strength loss, i.e. more pilling resistance and greater value. This result may due to the untouched cellulose structure compared to a conventional chemical boil. While the 4% caustic boiling bath showed high pilling resistance, when studied in detail, it showed the fibrils formed in high caustic treatment are so weak that they are cut off by the mechanical action of the pilling tester. Here weight loss is significantly greater.
Bioscoured cotton showed high pilling resistance , lower weight loss and less strength loss, i.e. more pilling resistance and greater value. This result may due to the untouched cellulose structure compared to a conventional chemical boil. While the 4% caustic boiling bath showed high pilling resistance, when studied in detail, it showed the fibrils formed in high caustic treatment are so weak that they are cut off by the mechanical action of the pilling tester. Here weight loss is significantly greater.

Conclusion :

Cellulase Enzymes are Important tools in the Cotton textile Industry. They provide an Economical and Environmental friendly way to treat cotton and its blends. The potential issue of loss in tensile strength can be reduced by using proper combination of EG & CBH enzymes as demonstrated in Advanced Enzyme Technologies Ltd Product, SEBrite. Cost effective and eco-friendly biopolishing results can be achieved by proper application with right blending of Cellulase enzymes after Bioscouring.

For more information on enzymes offered by Advanced Enzyme Technologies, please contact :

COMET
402, Satyam Mall, Opp. Mansi Tower,
Jodhpur Bodakdev Road, Satellite, Ahmedabad – 380015
Phone : (079) 30151719/24 Fax : (079) 30021605
Email : [email protected]

(This article is sponsored by COMET. The content is reproduced from a presentation made at the Seminar organised by COMET’s principals M/s Advanced Enzyme Technologies Ltd. (SEB Group, USA) 

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