Effect of Lipase Treatment on Physical and Dyeing Properties of Cellulose Acetate Fabric

Author(s): Ali Akbar Zolriasatein*

Journal Name: Recent Innovations in Chemical Engineering
Formerly Recent Patents on Chemical Engineering

Volume 13 , Issue 5 , 2020


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Abstract:

Objective: Cellulose acetate fabric was bio-treated by lipase enzyme. Afterwards, untreated and bio-treated fabrics were dyed with direct and disperse dyes to study the treatment effect.

Methods: Bending length, fabric thickness, tensile strength and dyeing properties of the biotreated fabrics were studied. Change in the morphology of fibers was observed by SEM after enzymatic deacetylation.

Results: Enzymatic deacetylation of cellulose acetate fibers led to an improvement in hydrophilicity. The whiteness index of cellulose acetate fabric slightly decreased from 95.81 to 95.79 after bio-pretreatment. Lipase pre-treatment also caused an increase in fiber diameter of up to 54.80%. Bending length decreased from 1.95 to 1.80 cm after enzymatic treatment while the number of threads per centimeter and fabric thickness increased. Bio-treated fabric showed lower tensile strength in comparison to untreated fabric.

Conclusion: The lipase pretreatment increased the color strength by 19.04% and 18.50% for direct and disperse dyes respectively.

Keywords: Cellulose acetate fabric, lipase enzyme, fiber diameter, bending rigidity, whiteness index, color strength.

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Article Details

VOLUME: 13
ISSUE: 5
Year: 2020
Published on: 21 January, 2021
Page: [344 - 352]
Pages: 9
DOI: 10.2174/2405520413666200207114627
Price: $65

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