Method of shrinkage test of wool sweater

Sweater has excellent elasticity, warmth retention and hygroscopicity, soft luster and soft hand feel, but it also has disadvantages such as poor dimensional stability, easy wrinkling, and easy deformation. The dimensional stability of the sweater is the key to affecting the quality of the sweater. Generally, it can only be displayed after wearing and washing. It has a certain degree of concealment and directly affects the wearability of the sweater. The dimensional stability of sweaters can be effectively improved only by selecting appropriate yarn and organizational structure, determining a reasonable finished product density and rationally selecting a blank density. This article introduces the test method of sweater shrinkage, hoping to provide reference for manufacturers or textile testing departments. (For other textile functional testing programs, please go to: http://www.gnxcs.com/newslist/list-110-1.html) 1. Test samples of a certain brand of sweater fabrics 2. Test equipment fabric shrinkage test machine (European standard WascatorFOM 71CLS LAB washing machine supplied by (Hong Kong) Co., Ltd.) 3. Main standard FZ/T20010-1993 (Determination of Shrinkage of Wool Fabrics: Mild Household Laundry Method, GB/T 86294, research methods refer to national standard GB6259 Textiles The standard atmosphere for humidity adjustment and experiment was adopted, and household washing and drying procedures were adopted. Experimental steps: lay the sample flat on the workbench in the standard atmosphere to adjust the humidity for 24 hours, and lay the sample after humidity adjustment on the workbench without tension. On the stage, the distance between the measurement marks is accurate to 1 mm, and the sample is treated twice according to the 7A procedure specified in GB/T 8629. During the experiment, detergent is added, and the detergent should be fully dissolved in water at 30 °C. The sample was placed on the workbench without tension and placed in the air for 24 hours to measure the size. 5. The dimensional change of the sample before and after the test was recorded in the experimental results, and the shrinkage rate was calculated to evaluate the dimensional stability of the test. 6. Conclusion This paper introduces the The method of testing the shrinkage rate of wool sweater using the fabric shrinkage rate tester provided by (Hong Kong) Co., Ltd. The test shows that the fabric shrinkage rate tester provided by (Hong Kong) Co., Ltd. can meet the test conditions required for the test, and the equipment It has the advantages of wide range of use, simple operation, high test accuracy, and good repeatability of experimental results. (Hong Kong) Co., Ltd. is a professional comprehensive supplier of material testing instruments and laboratory overall solutions, dedicated to manufacturing plants and trade. The company provides professional one-stop laboratory technical services. In addition to the fabric shrinkage test machine, the equipment provided includes aging test chamber, color fastness tester, pilling tester, water repellency and waterproof tester, thermal moisture resistance tester Resistance tester, combustion tester, etc. By introducing the most advanced products in the world, integrating the advantages of technology and service, absorbing the experience of solving common problems, providing the most optimized solutions for domestic customers, and promoting the improvement of the level of domestic scientific research and related industries. You can log in www.standard-groups.cn to view the relevant equipment information, or directly call 021-64208466 for consultation.

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