What should be paid attention to when choosing clean clothes
Many industries are facing the problem of purchasing clean clothes. They don't know how to choose and are at a loss about this matter. Let me introduce it to you below.
How to choose clean clothes? There are two main aspects, the first is the fabric, and the second is the style. Before talking about this, we have to figure out the classification of clean room grades, and we must know what grade of clean workshop our workshop is.
The clean room grades are divided into 300,000, 100,000, 10,000, 100, 100, and the classification method is mainly based on the number of particles exceeding 0.5μm in the workshop m?. For example, if it is 1000, it is not allowed to have more than 1000 particles of 0.5μm per m?. So the clean room is not dust-free in the absolute sense.
After knowing this division, let's take in the pollution source. The pollution source mainly comes from the activities of the operators, such as sweat, skin, dandruff, hair, dust on clothes, etc. In order to reduce the pollution caused by human activities, there are anti-static dust-free clean clothes.
The fabric itself does not shed dust or lint because it is anti-static, nor does it absorb or stick to dust. The more closed the clothes are, the more dust generated by people will be enclosed in the clothes to prevent pollution of the production workshop. Therefore, wearing such clothes also sacrifices a certain degree of breathability. The more breathable, the less dustproof performance, and the less isolation between the inside and outside of the clothes.
In workshops of 100,000 and 300,000 levels, most of them wear gown-style clean clothes, and jacket-style clean clothes are equipped with hats. For example, in workshops of 10,000 and 1,000 levels, there are more split-type clean clothes or one-piece clean clothes, and the one-piece performance is better than the split-type
The above is the choice of style, and the following is about the choice of fabric:
The anti-static function mainly depends on the conductive fiber blended on the fabric. Therefore, the denser the conductive fiber, the better the anti-static performance. Now there are mainly 5MM spaced stripes, 5MM spaced grids, and 2.5MM grids. The anti-static performance increases in sequence. Therefore, the choice of fabric depends on the requirements for static electricity. The higher the requirements, the denser the fabric. It is better to release static electricity, protecting the product from static electricity hazards to the greatest extent.