4.0 Article

Stain removal performance of moisture-wicking fabric during home laundry

Journal

TENSIDE SURFACTANTS DETERGENTS
Volume 60, Issue 3, Pages 203-213

Publisher

WALTER DE GRUYTER GMBH
DOI: 10.1515/tsd-2022-2436

Keywords

hydrophilicity; moisture-wicking fabric; stain removal; surfactant; washing

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Moisture-wicking fabrics are commonly used in sports due to their moisture absorption and perspiration functions. This study investigated the washing and decontamination of these fabrics, focusing on their performance and decontamination effects after washing. The results showed that moisture-wicking fabrics have a unique hexagonal cross-section and good hydrophilicity. The air permeability of the fabric increased after degreasing and thermosetting. There was a slight decrease in air permeability after one washing, but it had little effect on subsequent washing cycles. Additionally, the degreasing and thermosetting process improved stains removal.
Moisture-wicking clothes are widely used in various sports or athletic activities due to their function of moisture absorption and perspiration. In this study, the washing and decontamination of moisture-wicking fabrics, especially the performance and decontamination effect of moisture-wicking fabrics after washing were investigated. The results showed that the physical morphology of moisture-wicking fabric is very different from that of an ordinary polyester fabric. The cross-section of the moisture-wicking fabric is hexagonal, and this fabric has good hydrophilicity. After the degreasing & thermosetting process, the air permeability of the moisture-wicking fabric is increased from 1013 mm/s to 2911 mm/s. However, the air permeability is decreased after one washing, but it has little effect during the subsequent washing cycles. Moreover, the degreasing & thermosetting process also improve the stains removal index. If the moisture-wicking fabric was washed before the preparation of stained fabric, the stain removal index of carbon black soil and sebum stains is increased. Although most of the aggregated particles on the surface of the fibers are removed after washing, a small amount of sebum still remains in the spaces between the fibers. These results indicate that most of the carbon black in the stained area is removed after washing, while oil components are hardly removed from the moisture-wicking fabric during home laundry. Compared to other surfactants, C-18 fatty acid methyl ester ethoxylates and nonionic surfactants with long carbon chains can effectively reduce the surface tension of water and improve the wettability of water-wicking fabric, so that water molecules can diffuse well between fibers and stains, the binding force between stains and fabric is weakened, and the decontamination of the fabric is improved.

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