4.6 Article

Multifunctionalization and Increased Lifespan of a Worsted Wool Fabric

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COATINGS
卷 13, 期 4, 页码 -

出版社

MDPI
DOI: 10.3390/coatings13040736

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worsted wool; woven fabric; fiber coating; machine washable; shrink-proof; water-repellent; abrasion resistance

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The aim of this study is to produce a machine-washable, 100% worsted wool woven fabric for men's suit jacket that is water-repellent to reduce the need for frequent washes. Chemical treatments were applied to enhance the fabric's dimensional stability and water-repellency. The finished fabric met the requirements for dimensional change and showed durable water repellency, as well as good softness and flexibility.
A lack of dimensional stability of worsted fabrics when laundering leads to a rapid increase in wool textile waste. Dry cleaning is thus highly recommended; however, it requires solvent(s), which are not eco-friendly. The aim of this study was to produce a machine-washable, 100% worsted wool woven as an outer fabric for men's suit jacket that is also water-repellent in order to reduce the number of washes required during use. Chemical treatments were applied through successive paddings, using a blend of aqueous dispersion of polyurethane and polysiloxane (PUPX) for shrink-proofing/dimensional stability, followed by a second blend of an aqueous emulsion of fluorotelomer methacrylate and paraffin/hydrocarbon waxes (C6PW) polymers for water-repellency. The dimensional change of the finished fabric did not exceed 2%, meeting Woolmark requirements AW-1. Zeta potential measurements confirm that the fabric coated with PUPX has an overall anionic nature, which allows the good adhesion of the successive cationic C6PW polymer blend used in the second padding. Additionally, Scanning Electron Microscopy (SEM) analysis confirmed the good adhesion of the first blend (PUPX) to the wool fiber surface and inter-fiber bonding. After the application of (C6PW) resin, the fabric exhibited durable water repellency with a 5/5 spray test rating after 10 washes and dimensional stability, as well as high resistance to wear and abrasion, while retaining a soft feel and good flexibility.

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