Effect of finishing chemicals on tearing strength of plain-woven cotton fabric

Abstract

Purpose This paper aims to assess the relationships amongst the tearing strength of fabrics after each chemical processing stage and after finishing of plain-woven cotton fabric. An effort has been made to study the effect of different finishing chemicals (tear improver) and their different concentrations on the high-density fabric tear strength and its sub-component with respect to the co-efficient of friction value of yarns for all the fabric samples. It also aims to establish a statistical model for prediction of tear strength with identified parameters as yarn–yarn friction co-efficient, yarn pullout force and single yarn strength. Design/methodology/approach In case of woven fabrics, it cannot be assumed that only yarn friction plays the role in deciding fabric-tearing strength. Whether the static or kinetic frictions need to be considered or the linear or capstan frictions have to be analyzed, to incorporate the results of friction analysis in the tearing behavior, need to be assessed. In the present work through a fabrication of yarn–yarn friction measurement, under a synchronized slow speed as that of actual fabric tearing (50 mm/min), has been carried out. After each wet processing stage, surface characteristics of yarns have been changed. Surface of yarns becomes smoother after finishing and rough after dyeing, which affects the co-efficient of friction of yarns, accordingly. Findings After each wet processing stage, the surface characteristics of yarns are changed. Surface structure of yarns becomes smooth after finishing and rough after dyeing, which affects the co-efficient of friction of yarns. For all the fabrics, the weft-way tearing strength is always higher than warp-way tearing strength. It is also observed that yarn pullout force is not the only responsible factor for tearing strength of such fabric. It is because of the combined action of yarn–yarn friction, yarn pullout force and single yarn strength for a given structure. Research limitations/implications A more extensive investigation with respect to concentration as well as further variety of chemicals requires to be identified for the optimum concentration level for each chemical. A mathematical model based on the three parameters as yarn–yarn co-efficient of friction, yarn pullout force and yarn strength for all woven fabric structure to achieve optimum strength level has been established which could be further extended for each fabric structures. Practical implications The problem has been identified from the day-to-day exercise of the commercial textile industry. The whole of the sample preparations have been done in the industry by using commercial machines under standard industrial conditions. The findings have been discussed and suitably introduced in the industry. Originality/value The whole of this paper has been unique in idea origination, sample preparation and execution of tests. The findings are very important for the researchers as well as for textile industry.

Jute textiles with enhanced interfacial bonding as reinforcement for cementitious composites

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“…Mercerized fabric is smoother than the other treated or untreated samples, because the fiber swells during the mercerizing process to arrange the yarn and fabric structure, resulting in a tight fabric structure. According to the findings of Gupta et al's study, 33 the surface characteristics of yarns change after each processing stage. The yarn surface becomes smoother after the pretreatment process, and as a result the treated fabric will be smoother also.…”

Tear and Tensile Strength of 100% Cotton Woven Fabrics’ Basic Structures: Regression Modelling

“…The geometry of the fabric, thread density, and weaving design also have a significant effect on the strength of the fabrics. The strength also be influenced based on the production state during wet processing and finishing treatment [3][4][5]. Also, test conditions such as temperature, humidity, loading time, loading quantity, jaw distance, and measuring methods often influence the difference in the intensity of the fabric value.…”

“…For all these controllable and uncontrollable variables relevant to fiber, yarn, and fabric during production cycles, creating a simple direct quantitative connection between the yarn's intensity and the fabric's corresponding strength is quite complicated. In this respect, it is crucial to identify the right ways to decide the parameters before manufacturing fabrics to ensure the tremendous loss of supplies, time, electricity, labor, and money [2][3][4][5][6]. Different fabric manufacturing processes, such as spinning, knitting, non-woven, and braiding, are available [7].…”