T/GDTEX 07-2019 Guidelines for reducing the breakage of elastic in woven denim clothing and denim fabric

Scope

Scope: This standard provides guidance and recommendations for controlling the breakage of elasticity in woven denim garments and denim fabrics, and provides relevant information on factors to be considered. This standard applies to weft-elastic denim fabrics and denim garment products using spandex as the elastic raw material. Main technical content: 1. Scope: This standard provides guidance and recommendations for controlling the breakage of elasticity in woven denim garments and denim fabrics, and provides relevant information on factors to be considered. This standard applies to weft-elastic denim fabrics and denim garment products using spandex as the elastic raw material. 3. Terms and Definitions 3.1 Breakage of Elasticity: Refers to the loss of elasticity caused by the breakage of polyurethane fibers in elastic denim fabrics or garments, resulting in wrinkles, looseness, bubbling, or poor shaping at seams on the fabric surface or garment surface. 4. Factors to be Considered and Solutions 4.1 Spandex Filament 4.2 Elastic Yarn 4.3 Weaving 4.4 Finishing 4.5 Sewing 4.6 Wash Test 4.7 Physical Damage 5. Control Measures 5.1 The causes of breakage in denim garments or denim fabrics are complex and diverse. The causes of breakage need to be comprehensively judged based on factors in the production process. 5.2 There are certain special characteristics in the breakage of denim garments and denim fabrics. Preventing the occurrence of breakage should take measures from the raw materials and production process. 5.3 Understand the chemical structure of the spandex used clearly, and select suitable production and processing processes and dyeing auxiliaries based on the characteristics of the spandex chemical structure. 5.4 Ensure the quality of raw materials and dyeing auxiliaries, conduct good material inspection and sample testing, and keep the inspection records. Select raw materials that meet the requirements and chemicals that do no

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