With the fire of outdoor sports, the jacket appears more and more frequently in the public’s field of vision. The most intuitive difference between the ordinary clothes we wear everyday is that the assault jacket can keep the clothes that can be kept dry and refreshing in a special environment such as outdoor humidity while ensuring normal comfort. After finishing. While blocking outdoor rain water into the clothing, it has excellent humidity, that is, it has waterproof and humidity.
The waterproof requirements of the jacket are not simply wet by water. It needs to prevent rainwater falling from the sky 10-12 kilometers from the ground to enter the clothes. It is necessary to have certain water resistance requirements. In the strict sense of waterproof and waterproof waterproof here, it is not a concept.
Waterproof means that textiles are completely impermeable, and neither liquid water and gaseous water can penetrate into the textiles. Generally speaking, the surface layer of waterproof textiles is dense and impermeable. Simple understanding is waterproof and breathable. Water -proof (refusal) is waterproof and breathable. The liquid water will not penetrate into the fabric without any pressure, but the gaseous water will penetrate through the gap.
Textiles and waterproof performance testing experiments are a standard that must be tested by some fabrics with waterproof properties. This type of standard has different requirements for different countries.
Textile waterproof performance detection is also known as water resistance detection, which is mainly divided into detection of water anti -permeability (static water pressure), surface water refusal (spray) detection and rainstorm testing.
The waterproof grade often mentioned in our daily work and life is actually a surface -to -water -type (spray) detection level. Spray test: ISO 4920; BS EN 24920; AATCC 22
Principles: Under the control conditions, quantitative distilled water sprayed on the tight surface of the experiment by 45 ° sprayed at 150mm under the nozzle through the standard nozzle, generated a wet sample, and the test sample surface surface was compared with the standard diagram card with the standard diagram card. Review the level. Key points: level 5, level 4, level 3, level 2, level 1, a total of 5 standard images.
ISO 1 = Aatcc 50; ISO 2 = Aatcc 70; ISO 3 = AATCC 80; ISO 4 = AATCC 90; ISO 5 = AATCC 100.
If the sample surface and lower surface are all wet, the lowest level is rated 0 in the AATCC 22 standard, and the lowest level of ISO is level 1.
Fabric Waterproof Trick Preparation
Waterproof waterproofing agents not only give the fabric waterproof performance, but also meet people’s needs in some aspects. Catens to the market trend of the current consumer market’s demand for textiles with waterproof performance.
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Post time: Apr-22-2024