Capillary Flow in Cotton Fabric Based on Fiber Orientation Probability Density Function

Liang, Shuaitong; Zhang, Hongjuan; Wang, Jiping

doi:10.1080/15440478.2021.1967829

Cited by 2 publications

(2 citation statements)

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“…The adsorption and diffusion of odorous molecules in fabrics are related to fabric structure, airflow velocity, distribution coefficient between fabric and air, temperature, and humidity. 9,17,18,26 The adsorption and diffusion processes of fabrics in a one-dimensional thickness direction can be described by equation (1): 27…”

Section: Experimental and Dynamic Modelsmentioning

confidence: 99%

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Tobacco and Hot Pot Odor Adsorbed by Cotton, Wool, and Polyester Fabrics: Desorption Components and Dynamic Analysis

Huang

Liang

Zhang

et al. 2022

AATCC Journal of Research

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Fibrous textiles readily absorb and desorb ambient odors. However, information on the composition and dynamic analysis of tobacco smoke and hot pot odors on fabrics during desorption is limited. This study used gas chromatography–mass spectrometry to analyze the desorption components of cotton, wool, and polyester fabrics exposed to these two odors, respectively. Then, a dynamic diffusion fabric structure model demonstrated the effect of airflow velocity and fabric porosity on nicotine desorption. Furthermore, we proposed mass diffusion coefficients with different molecular weights. The results showed that cotton fabrics with tobacco smoke released many low molecular weight compounds, while with wool fabrics significantly fewer compounds were detected than for the other two fabrics. Notably, 3-ethenylpyridine, a marker of tobacco smoke, was not detected in wool fabrics. For hot pot odor, cotton fabrics released more hexanal, nonanal, and anethole than wool and polyester, while wool fabrics released many β-pinenes. The numerical results of the dynamic model showed that the air inlet velocity significantly affects the nicotine concentration in the fabric. Meanwhile, the concentration of nicotine in fabrics with lower porosity decreased faster. A lower mass diffusion coefficient will cause odors to remain in the fabric. This study aimed at the composition and the dynamics of odor in fabrics and offers essential information and simple models for reducing unnecessary washing of textiles and odor resistance textile design.

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Section: Experimental and Dynamic Modelsmentioning

confidence: 99%

“… R + S is the chemical reaction and deposits on the fiber’s surface. In one-dimensional direction, the velocity field u can be calculated using equation (2): 27,28…”

Section: Experimental and Dynamic Modelsmentioning

confidence: 99%