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Your location: Home > Related Articles > Spray Water Repellency Tester Spray Test Method AATCC22

Spray Water Repellency Tester Spray Test Method AATCC22

Author:QINSUN Released in:2023-08 Click:104

The spray water repellency tester is a test equipment independently developed and produced by qisnun Precision Electromechanical Technology Co., Ltd. It is simple and portable, and the test procedure is relatively simple, which makes this standard particularly suitable for factory product control. Since this standard cannot measure the performance of water droplets penetrating the fabric, it is not recommended that this standard be used to evaluate the rain penetration resistance of waterproof fabrics.

The test results of this standard relate to the initial water repellency and wettability of the finish of fibres, yarns and fabrics, and have little to do with the structure of the fabric.

The AATCC22 standard applies to any textile fabric, whether or not it has undergone a water-repellent treatment. This standard can determine the water repellency of fabrics and is particularly suitable for textiles treated with water repellency, in particularular plain woven fabrics.

Testing method:

(1) Firmly attach the 180X180mm test sample to a ring of a diameter of 152mm, so that it has a smooth surface with no loose crumpled surfaces.

(2) Place the ring with the tissue on the test instrument holder so that the center of the nozzle is aligned with the center of the ring.

(3) Make the warp of the cloth follow the direction of the water drops on the surface of the cloth, add 27±1°C, 250ml of water into the funnel of the cloth. funnel test instrument and make it vaporize in 25-30 seconds and avoid contact with the funnel when adding liquid. Movement of the funnel will change the relative position of the nozzle and the fabric.

(4) The spray time should be controlled within 25-30 seconds, otherwise check whether the small hole is enlarged or blocked.

(5) Hold one side of the ring, tap with an objecthard on the opposite side of the ring, and the test sample faces this object, then rotate the ring 180 degrees, repeat the above action once.

Evaluation level:

(1) 100 points: the top surface is not wet or wet;

(2) 90 points: a small amount of water on top surface, water or uneven wetting;

(3) 80 points: top surface is wet;

(4) 70 points: entire surface top has some wetting;

(5) 50 points: Entire top surface is fully wetted;

(6) 0 points: Entire top surface is partially wetted and surface sinks.

Shanghai Fanbiao Textile Testing Technology Co., Ltd., as an enterprise integrating R&D, manufacturing, sales, training and service, is committed to continuously providing more testing instruments. market test, providing long-term textiles, Non-standard customization isalso acceptable for testing instruments for leather, combustion, automotive interior materials, environmental weathering, masks, etc. Before purchase, we can carry out targeted tests according to customer requirements to ensure that the purchase of instruments is suitable.