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2022-11-24 0 Views

Moisture Resistance Tester for Fabric Surfaces AATCC22 Spray Test Method

The textile surface moisture resistance tester can be used to evaluate the water repellency of the textile surface. The instrument is an all-metal structure. Quantitatively distilled water flows through the standard nozzle at 150mm under the 45 degree spray to the sample. After the test, the surface of the sample is consistent with the standard curves and can be compared and judged. It is the main instrument and equipment for testing the water repellency of fabrics.QINSUN is the manufacturer. Customers in need are welcome to inquire in time. O9LTextile Testing Instruments, Testing Equipment Manufacturer

Purpose and scope:O9LTextile Testing Instruments, Testing Equipment Manufacturer

1. The standard applies to any textile fabric whether or not it has been treated for water repellency. This standard can

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measure water resistance and wetting performance, especially suitable for textiles treated with water repellency, forral plain woven fabrics. O9LTextile Testing Instruments, Testing Equipment Manufacturer

2. Due to the simplicity and portability of this instrument, the test procedure is relatively simple, making this stand particularly suitable for factory product checking. Since this standard cannot measure the performance of water droplets penetrating the fabric, it is not recommended to use this standard to evaluate the rain penetration resistance of waterproof fabrics. O9LTextile Testing Instruments, Testing Equipment Manufacturer

3. The test results of this standard relate to the initial water repellency and wettability of the fibre, yarn and fabric finishes and have little to do with the structure of the fabric. O9LTextile Testing Instruments, Testing Equipment Manufacturer

Test Principle:O9LTextile Testing Instruments, Testing Equipment Manufacturer

Under the specified conditions and procedures, spray water on a tight sample to form a wetting pattern on the surface, the size of which is equal to the repellency of the fabric related to water performance. The evaluation results are determined by comparing them to the standard pattern.O9LTextile Testing Instruments, Testing Equipment Manufacturer

Instruments and materials: O9LTextile Testing Instruments, Testing Equipment Manufacturer

Spray water repellency tester; cup; demineralized water. O9LTextile Testing Instruments, Testing Equipment Manufacturer

Test Sample:O9LTextile Testing Instruments, Testing Equipment Manufacturer

Three pieces of 180*180mm (7*7inch) test samples are required. Prior to testing, they should be maintained at a temperature of 21±1°C and a relative humidity of 65±Humidity Adjustment at 2% standard environment for a minimum of 4 hours. O9LTextile Testing Instruments, Testing Equipment Manufacturer

O9LTextile Testing Instruments, Testing Equipment Manufacturer

Test procedure: O9LTextile Testing Instruments, Testing Equipment Manufacturer

1. Place the sample on a metal ring with a diameter of 152 mm, facing towards de , make sure the surface is flat and wrinkle-free. O9LTextile Testing Instruments, Testing Equipment Manufacturer

2. Place the metal ring with the sample on the storage table of the tester, pay attention to the position of the sample when placing it, and make sure that the center of the sample ring is exactly aligned with the center of the spray pattern ring. For some twill, piqué, or similar stripe textures, when the sample ring is placed on stage, the direction of the stripes should be diagonal to the stripe.hing of the water flow are placed. O9LTextile Testing Instruments, Testing Equipment Manufacturer

3. Pour 250ml of deionized water with a temperature of 27±1°C into the funnel of the tester and allow it to spray on the sample within 25-30 seconds. When deionized water is poured, the beaker should not touch the funnel. Moving the funnel changes the pattern and shape of the sample spray. The spray time should be between 25-30 seconds, otherwise the nozzle should be checked to see if the hole is enlarged or clogged. O9LTextile Testing Instruments, Testing Equipment Manufacturer

4. Hold one side of the sample ring, place the sample face down and quickly tap the other side towards a hard object, then rotate the sample 180° horizontally and hold the original tapping site quickly Tap back on the original tapping site to tap any unwetted water droplets on the surface of the sample. O9LTextile Testing Instruments, Testing Equipment Manufacturer

5. Repeat the steps above to test the remaining two samples. O9LTextile Testing Instruments, Testing Equipment Manufacturer

Advantages and features:O9LTextile Testing Instruments, Testing Equipment Manufacturer

1. The company has been engaged in instrument testing for more than ten years and has a after-sales service team;O9LTextile Testing Instruments, Testing Equipment Manufacturer

> 2. Can provide various O9LTextile Testing Instruments, Testing Equipment Manufacturer

3. Spare parts are available to solve the problem of long delivery time for spare parts ordering; O9LTextile Testing Instruments, Testing Equipment Manufacturer

4. Provide outsourced maintenance services;O9LTextile Testing Instruments, Testing Equipment Manufacturer

5. Long-term supply of various commonly used test instruments;O9LTextile Testing Instruments, Testing Equipment Manufacturer

6. Keep up with the update of industry standards and care for test instruments that meet the new standards in time. O9LTextile Testing Instruments, Testing Equipment Manufacturer