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3 Process Types for Making Nonwoven Filter Media Materials

Filtering is an important part of our daily lives. From coffee filters to air purifiers to water and car filters, many industries and consumers rely on high-quality filter media that purify the air they breathe, the water they consume, and keep their machines and Vehicle is working normally. In some cases, filter media can protect the health and safety of individuals and even save lives.
The method of manufacturing filter media depends largely on the type of filtration required. There are six main methods, as follows:
1, combing method
Card filter media are traditionally used for masks and filtering cooking oil, coolant oil, and milk. Usually resin or thermal bonding is used, this method is in some cases superseded by other methods described below.
2, wet process
Wet and wet filter Washi paper media are used in swimming pool filters, coffee filters and HEPA filters. They are made by a process similar to papermaking, where a mixture of man-made, natural, or fiberglass staple fibers forms a paper-like medium on standard papermaking equipment.
3, Meltblown method
Meltblown filter media are ideal for particulate filtration such as dust, asbestos, and fumes. This is the type of filter commonly found in respirators and is easily mass produced. It is formed without the use of fibers: instead, molten polymer is blown into a microporous mesh.