Calcium Chloride Treated Highly Elastane Cotton Fabrics as Antibacterial, Comfortable and Environmentally Friendly Materials

In the paper, the results of experiments on high elastane cotton crochet warp knitting fabrics treated with different calcium chloride solutions by the pad-dry-cure method have been reported. The tests for evaluating the antibacterial activity, thermophysiological comfort properties, physical performance of the samples were performed. In addition, the characterization analyses, including SEM, EDX, FTIR-attenuated total reflectance (ATR), and XRD, afforded indications of the good crosslinking of the CaCl2 onto the cotton/elastane samples. At a higher degree of activity, the calcium-chloride-treated fabrics were rated as having good antibacterial activity, being exceptionally breathable, and being comfortable with good physical properties such as stiffness, handle, and whiteness properties.

Multivariate analysis of curve parameters to predict fabric stiffness handle from a pulling-out test

The Comprehensive Handle Evaluation System for Fabrics and Yarns (CHES-FY) is capable of measuring multiple physical and mechanical properties of fabrics, which are related to fabric handle. In this study, ten curve parameters were defined from the pulling-out force–displacement curve of the CHES-FY. Factor analysis was used to remove the co linearity of the curve parameters in order to better characterize the stiffness handle of fabrics. Three principal factors were established using the factor analysis, and the first principal factor was termed the stiffness index based on loadings of the curve parameters to the rotated factors. Comparisons between the evaluation results of the CHES-FY, cantilever test, and newly-developed dual subjective/objective assessments showed that the CHES-FY, together with the stiffness index resulting from the factor analysis, provided a fast and effective method to characterize a fabric’s stiffness handle, and the evaluation process of the CHES-FY appears to closely simulate the tactile response to stiffness when a person touches or pinches a fabric.

In Situ Complex Testing of Fabrics Stiffness and Properties by a Senor

The two well known systems for measuring stiffness handle of fabrics are KES-FB and FAST both consisting of four meters, whose testing principles are multiple mechanical properties through multiple tests. It is expensive, time-consuming and no in-situ. The multiple properties through single test in principle is up-to-date technology of measurement science, which is an assembled measuring technology in-situ and measure multiple functions on the same part of a sample. The corresponding apparatus was developed for measuring weight, bending, friction, tensile/shearing and compression behaviour of yarns and fabrics (CHES-FY) and also for stiffness handle evaluation. The paper just presented the bending model, and the comparisons between characteristics including bending rigidity and stiffness from the pulling-out force and distance curve and results by KES-F & FAST systems were conducted. Conclusions showed high correlations and indicates the approach by CHES-FY be feasible and accurate in measuring bending rigidity and stiffness handle.