ISO 4920 fabric water repellent spray tester

Suitable for Table cloth, tapestry, flooring material fabric manufacturer or processors.Water repellency test method is applicable to any textile fabric, which may or may not have been given a water-repellent finish. It is very necessary for a manufacturer to test the water repellency ability of the fabric. This method is especially suited for measuring the water-repellent efficacy of finishes applied to fabrics.The water repellency ability of the fabric is tested with spray test. The Evaluation of the test is visual appreciation of the surface of the fabric (number of absorption points on the surface). It is very important to test the repellency of a garment worn in foul weather conditions. The more the repellency more comfortable the fabric will be during use. The repellency tends to decrease during washing, so a re-impregnation of a water repellent product is advised.

Standards:
ISO 4920, BS EN 24920, BS 3702, GB/T 4745, AATCC 22, M+S P23, NEXT 23

Product Dimensions：
1.Structure: stainless steel;
2. Surface treatment: spray paint;
3. Dimensions: 230 x 250 x 500mm (length x width x height);
4. Weight: 5 kg (11 lb)

Product Information:
The instrument comprises a metal framework allowing distilled water to be sprayed through a nozzle onto a test specimen at 45¬ and 150mm below the nozzle. The appearance of the specimen is compared against an standard photographic scale.
A certain volume of distilled water is sprayed into the center of the fixed sample. Strict quality control of the nozzle and the precise setting of the above height ensure the steady spray water flow and water form of the strict ensure to meet the requirement in the national standard. The height of the nozzle can be precisely set by using the provided height setting ruler.

Features:
1.The instrument structure is simple, mainly composed of main frame, funnel, nozzle, sample frame and sample fixator.
2.The nozzle has 19 evenly distributed holes, and the aperture is customized according to the standard. The 250ml water poured into the funnel can flow out from the nozzle in 25-30s.
3. The upper edge side of the sample rack ring forms an angle of 45¬ with the horizontal plane.
4. The center of the sample is 150mm from the nozzle.

Attachment:
Nozzle and rubber cover;
The water pan;
AATCC(22) rating standard chart card