Application of corona discharge on desizing of polyvinyl alcohol on cotton fabrics

Authors

  • Pibo Ma,

    1. Key Laboratory of New Textile Green Processing and Functional Material, Ministry of Education, Wuhan University of Science and Engineering, Wuhan 430073, China
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  • Xin Wang,

    1. Key Laboratory of New Textile Green Processing and Functional Material, Ministry of Education, Wuhan University of Science and Engineering, Wuhan 430073, China
    2. Centre for Material and Fibre Innovation, Deakin University, Geelong 3217, Australia
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  • Weilin Xu,

    Corresponding author
    1. Key Laboratory of New Textile Green Processing and Functional Material, Ministry of Education, Wuhan University of Science and Engineering, Wuhan 430073, China
    • Key Laboratory of New Textile Green Processing and Functional Material, Ministry of Education, Wuhan University of Science and Engineering, Wuhan 430073, China
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  • Genyang Cao

    1. Key Laboratory of New Textile Green Processing and Functional Material, Ministry of Education, Wuhan University of Science and Engineering, Wuhan 430073, China
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Abstract

In this study, corona discharge was applied to optimize the desizing of polyvinyl alcohol (PVA) on cotton fabric. The weight of sized fabric decreased slightly when the PVA sized fabric was treated by corona discharge. Percent desizing rate (PDR) of PVA sized fabric increased evidently after the fabric was subjected to corona discharge treatment, PDR increased with the enhancement of corona discharge treatment by increase of applied voltage and treating time. Water dissolution time and water-contact angle decreased at the same time. SEM and AFM photos show the surface of PVA film was modified into uneven morphology with many ridges pores and cracks. ATR-FTIR analysis shows that the content of C[DOUBLE BOND]O, [BOND]COOH, and C[BOND]O bonds was increased after the PVA film was treated by corona discharge. Corona discharge can be applied to optimize the desizing of PVA on fabric by saving treating time and water or decrease the usage of the detergent of hydrogen peroxide; it provides a green process and energy saving method for textile finishing. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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