Tension-free desizing machine and desizing process

Abstract

The invention discloses a tension-free desizing machine. The tension-free desizing machine comprises a cloth feeding mechanism, a desizing tank and a cloth discharging mechanism. A soaking tank, a first-stage pre-shrinking finish tank, a second-stage pre-shrinking finish tank and a third-stage pre-shrinking finish tank are arranged between the cloth feeding mechanism and the desizing tank in sequence. A washing tank and a drying oven are arranged between the desizing tank and the cloth discharging mechanism in sequence. A control cabinet, a hot water inlet valve, a cloth speed controller, a heating rod, a cloth tension speed measurer, a temperature sensor, a first cloth guide roller and a tension regulation roller are arranged on the first-stage pre-shrinking finish tank, the second-stagepre-shrinking finish tank and the third-stage pre-shrinking finish tank respectively. A plurality of cloth guide rollers are arranged in the desizing tank. The tension-free desizing machine has the advantages that the tension-free desizing machine is simple in structure and convenient to use; the soaking tank and the three pre-shrinking finish tanks are added to thoroughly eliminate the common problems of elastic fabrics, such as non-uniform shrinkage, wrinkles on cloth surfaces and insufficient elasticity, so that the quality is stabilized, and added values of products are increased.

Description

technical field [0001] The invention relates to a tensionless desizing machine and a desizing process, belonging to the technical field of textile equipment. Background technique [0002] During the weaving process, warp yarns are subject to greater tension and friction, and are prone to breakage. In order to reduce warp breakage, improve weaving efficiency and gray fabric quality, it is necessary to sizing the warp yarns before weaving, so that the fibers in the yarns are adhered to each other, and a firm size film is formed on the surface of the yarns, so that the yarns become compact And smooth, thereby improving the breaking strength and abrasion resistance of the yarn. [0003] Sizing is beneficial to weaving, but it brings difficulties to the subsequent dyeing and finishing process. The size on the gray cloth will contaminate the finishing working fluid and hinder the penetration of dyeing and chemical materials into the fiber. The warp yarns of fabrics such as cot...

AI Technical Summary

Problems solved by technology

The desizing of cotton fabric also has the function of removing impurities in the fiber. Depending on the size used in the sizing yarn, the desizing method is also different, mainly including hot water desizing method, lye desizing method, enzyme desizing method, oxidizing agent Desizing method, various desizing methods need to use a desizing machine, a desizing machine is a machine for removing sizing on fabrics, when the current desizing machine desizing elastic fabrics, often shrinkage unevenness, fabric Surface wrinkles, lack of elasticity, etc.

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