Gester Instruments | Professional Textile, Footwear and PPE Testing Equipments Manufacturers Since 1997
AATCC 135 fabric shrinkage test process and rating reference
Scope of application: This test method is used for the dimensional changes of woven fabrics and knitted fabrics after many household washings. Test principle: The size change of the cloth is calculated by the difference between the standard length defined on the cloth before washing in the typical household washing and drying process. Test instrument: Whirlpool washing machine and clothes dryer, Medicine: 92g WOB washing powder, total laundry weight: 1.8kg, weighted cloth: 92X2300px, white bleached cotton cloth, seaming. Sampling: Use the AATCC sampling ruler to cut a sample of 50 X1250px, and take three pairs of 35 X875px (35 is the smallest, or larger) on each side for marking, and take at least three samples. AATCC Shrinkage Washing Machine Technical Parameters: Standard: AATCC 88B, AATCC 88C, AATCC 124, AATCC 130, AATCC 135, AATCC 142, AATCC 143, AATCC 150, AATCC 159, AATCC 172, AATCC 179, AATCC 188 Test steps: 1) Sampling , Weigh, make up for less than 1.8kg with weighted cloth. 2) Set the water level. Medium is generally used, and if the customer has special requirements, it will be based on customer requirements. 3) Set the water temperature. Generally wash with warm water and cold water bleach, or according to customer requirements. The water heater can adjust the water temperature. 4) Set the washing program. Generally use Regular or according to customer requirements. 5) Take 92g of WOB detergent, dissolve it with warm water and pour it into the washing machine. 6) Put the sample and weight cloth into the washing machine. 7) Start up and run, and take it out after the end. 8) Put the taken out test sample and weighted cloth into the dryer. 9) Set a suitable drying program and temperature, and start the machine. 10) After the operation is over, take out the test sample and the weighted cloth, put it back in the washing machine and press 2) to 9) for the experiment. 11) As mentioned above, at least three cycles of washing and drying are carried out. 12) The dried test sample is placed in the condition room for at least 4 hours, and then the size change is measured and recorded. Test report: 1) The percentage of dimensional change in the length direction is the average value of each measurement. 2) The percentage of dimensional change in the width direction is the average value of each measurement. 3) Explain the washing conditions used, including water level, water temperature, and washing program. 4) Explain the drying conditions used, including drying procedures and temperature. 5) Explain the appearance change of the test sample after washing.
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Cut resistance is one of the most critical performance indicators in personal protective equipment (PPE) testing, directly affecting worker safety in high-risk industries such as metal processing, machinery manufacturing, and emergency rescue. The TDM Cut Test Machine GT-KC28 plays a vital role in accurately evaluating the cut resistance of PPE products, including gloves, protective clothing, footwear materials, composite materials, rubber, and industrial textiles.
By adopting high-precision force control systems, intelligent data processing, and stable transmission technology, the GT-KC28 TDM Cut Tester can accurately measure the critical cutting force of materials and ensure excellent repeatability and comparability of test results. Its user-friendly touch-screen operation, comprehensive data storage, USB data export, and built-in thermal printer greatly improve laboratory efficiency and data traceability.
The TDM Cut Test Machine GT-KC28 fully complies with major international and national standards such as ISO 13997, EN 388, ASTM F2992/F2992M, ANSI/ISEA 105, and GB 24541-2022, making it a reliable solution for PPE manufacturers, third-party testing laboratories, and research institutions. Through precise and standardized cut resistance testing, the GT-KC28 helps reduce industrial cutting injuries, supports PPE certification across global markets, and ensures that protective equipment delivers reliable safety performance in real-world applications.
Ball Burst Method (ASTM D3787): Steel ball penetration for textiles/films using testers like GT-C02-2.
Hydraulic Method (ISO 13938.1): Fluid pressure on rubber diaphragm for industrial fabrics via GT-C12A.
Pneumatic Method (ISO 13938.2): Compressed air for breathable materials tested with GT-C12B.
Results are influenced by raw materials, yarn properties,
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