Bioscouring Process of Fabric

Bio Scouring:
With the increasingly important requirement for textile industries to reduce pollution in textile production, the use of enzymes in the chemical processing of fibres and textiles is rapidly gaining wider recognition because of their non-toxic and eco-friendly characteristics. Enzymes were discovered in the second half of the nineteenth century, and since are routinely used in many environmentally friendly and economic industrial sectors. There is increasing demand to replace some traditional chemical processes with biotechnological processes involving microorganisms and enzymes such as pectinases, xylanases, cellulases, laccases and ligninases

Material Preparation:
A single jersey Cotton Knitted fabric having GSM 160 was supplied by the supervisor which consists of dirt, dust, oil, wax etc.We took 4 samples from it each weighing 10 grams. Before the scouring treatment the substrate was washed in distilled water to extract the water soluble constituents and then dried in Laboratory oven dryer. After washing and drying the oven dry weight of the samples were measured in an Electric Balance.

Recipe Formulation:
Enzymatic scouring was carried out by the following recipe-

Enzyme : .............................................3 g/L or 0.5%
Sequestering agent : ...........................1 g/L
Wetting agent : ...................................2 g/L
Temperature : .....................................60oC
Time : ................................................30 min
M: L : ................................................1:10
PH : ...................................................8 -9

Bio-scouring Curve:

Figure: Bio-scouring Curve.
Bio-scouring Procedure:
The required amount of water, chemicals & enzyme were taken for each sample in the individual pot of Washing and dry cleaning colour fastness (Gyrowash).Then the samples were immersed & stirred properly in the solution of the pots. Then the samples were treated in the Gyrowash according to the curve.

Washing and Drying :
After the completion of the bio-scouring process the samples were washed with hot water. Then the samples were treated with Acetic acid and washed with cold water and squeezed properly. Then the laboratory oven dryer was used for drying the samples. After washing and drying the oven dry weight of the bio-scoured samples were measured with the help of an Electric Balance.

Author of This Article:
Apu Kumar Das
B.Sc. in Textile Technology
Chittagong Textile Engineering College
Cell: +8801825272380
Email: akdas.textile13@gmail.com
Facebook: Apu Das
 

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