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How HEPA filters are pleated
How HEPA filters are pleated
A customer asked: How is the HEPA filter pleated? Glass fiber filter paper is more brittle than pp melt filter paper, do you encounter difficulties in the pleating process? How to solve?
The following is the pleating method of HEPA air filters shared by air filter manufacturers - the difference between the pleating methods of glass fiber and meltblown.
When it comes to HEPA, most people think of glass fiber, and glass fiber filter paper is made of glass fiber. It has the characteristics of high flow rate, low resistance, high dust holding capacity, and can filter fine particles. Compared with other fiber materials and synthetic materials, glass fiber filter paper has higher filtration efficiency. But at the same time he also has a weakness - relatively fragile, relatively easy to damage in the process of manufacture and transportation. After the comprehensive evaluation of the air filter custom factory, pp meltblown is generally used instead of glass fiber, and the performance is similar, but the yield will be high. In the pleating process, pp meltblown uses an ordinary origami machine, while in the process of glass fiber origami, considering the fragility of glass fiber, drum pleating is used. In China, it is basically good to use PP meltblown for civilian air filters, and the cost of glass fiber is also more expensive. Buyers can consider the material of the air filter from the upfront cost.
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