Water-repellent: In a standard laboratory, spray distilled water on the sample through a funnel, and compare it with the waterproof standard sample for rating;
Commonly used testing standards include American standard: AATCC22 (rating system); European standard: ISO4920 (rating system);
Comparison of American and European standards: 100 points (Level 5); 90 points (Level 4); 80 points (Level 3); 70 points (Level 2); 50 points (Level 1); 0 points (Level 0) .
There are three types of water repellent: ordinary waterproof (WaterRepellent, abbreviated as: (W/R)), durable water repellent (DurableWaterRepellent). The outdoor fabric industry is accustomed to call it super water repellent, abbreviated as: (DWR), DEKENANO waterproof;
(1) Ordinary waterproof (W/R): After washing the clothes a few times, the surface will no longer be waterproof. Generally, ordinary outdoor waterproofing is enough. The common data is 70 minutes before washing. If you often go hiking or have a certain altitude, The weather on the mountain is unpredictable and it may rain at any time. Ordinary waterproof clothing may not be waterproof after several washes, causing the surface of the clothing to get wet and wearing it will increase the weight on the body.
(2) Super water repellent (DWR): C8 waterproof produced by many additive companies on the market maintains an effect of 80 points (European standard level 3) after 20 washes; because the fluorine content does not meet EU standards, it has been banned by the EU Disabled. Nowadays, C6 and C4 are mostly used. C6 and C4 produced by DEKENANO generally maintain an 80-point effect after being washed 5-10 times.
(3) DEKENANO, produced in Sweden, has three-proof effects such as waterproofing, antifouling, and oil resistance. If you buy this brand of waterproofing, you can get a hangtag.
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