Materials 2014, 7(1), 58-74; doi:10.3390/ma7010058
Article

Effect of Stretching on Ultraviolet Protection of Cotton and Cotton/Coolmax Blended Weft Knitted Fabric in a Wet State

Received: 1 November 2013; in revised form: 9 December 2013 / Accepted: 12 December 2013 / Published: 20 December 2013
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: In this paper, the ultraviolet protection factor (UPF) of plain knitted fabrics made from 20Ne cotton yarns, Coolmax yarn and their combinations in wet, relaxed and stretched states were studied. According to the fiber composition, fabric samples are divided into three groups including Group I (single cotton yarn), Group II (cotton/cotton combination) and Group III (Coolmax/cotton combination) for discussion. In order to study the effect of wet condition on the UPF of different plain knitted fabrics, five wetting solutions, namely: (i) chlorinated pool water; (ii) sea water, (iii) acidic perspiration; (iv) alkaline perspiration and (v) deionized water (DI water) were prepared and the fabrics were wetted with different percentages of 50%, 75% and 100%. The UPF of the plain knitted fabrics in wet, relaxed and stretched states was measured and the results were discussed. In addition, yarn and fabric properties such as yarn tenacity, yarn strength, fiber combination and water vapor transmission, which affect the corresponding UPF values, were used for generating a prediction model in order to determine UPF. Verification of the prediction model was also conducted.
Keywords: cotton; Coolmax; weft knitted fabric; ultraviolet protection factor (UPF); wet; relax; stretching
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MDPI and ACS Style

Kan, C.-W.; Yam, L.-Y.; Ng, S.-P. Effect of Stretching on Ultraviolet Protection of Cotton and Cotton/Coolmax Blended Weft Knitted Fabric in a Wet State. Materials 2014, 7, 58-74.

AMA Style

Kan C-W, Yam L-Y, Ng S-P. Effect of Stretching on Ultraviolet Protection of Cotton and Cotton/Coolmax Blended Weft Knitted Fabric in a Wet State. Materials. 2014; 7(1):58-74.

Chicago/Turabian Style

Kan, Chi-wai; Yam, Lim-yung; Ng, Sun-pui. 2014. "Effect of Stretching on Ultraviolet Protection of Cotton and Cotton/Coolmax Blended Weft Knitted Fabric in a Wet State." Materials 7, no. 1: 58-74.

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