To identify the filter cloth, we must first understand the main technical parameters of the filter cloth. Among them, the main ones are density, thickness, weight, air permeability, breaking strength, etc. The more practical ones are density, thickness and weight. Air permeability.

1. (color of filter cloth), for example, big chemical fiber filter cloth has white hair and good gloss. Small chemical fiber filter cloth is dark and gray, and some filter felt, such as Nomex, are yellowish. (the luster of filter cloth) has a smooth surface. Bright, short fiber filter cloth surface with hair. (filter cloth lines) and, for example, twill, flat lines, these lines can also help you judge the model. Because some specifications are different lines, The specifications will also be different.

2, then touch. (softness). Among them, the staple fibers such as 208 729 are woven with the same material as woolen cloth. The softness. 734、747、758、3927 is made of the same material. It is only thick. The density is different. 3927 is very rough, strong, not soft. Softness. And roughness need you to take the sample bit by bit touch, write down. Say is not clear. (density) density one is with the hand touch, in addition, it is best to count 10 cm there are a few silk. The corresponding filter cloth specifications have their own density coefficient, As long as you go to check, you can roughly distinguish.

3, and then say. Among them, mainly to determine the thickness of the filter cloth, it is best to take a small piece of weight (per square meter of grams.

4, then burn. Among them, polyester burning up to smoke, The polypropylene fiber burns up and glows. The other burning is not correct. 5. Above are some technical opinions. In terms of thinking, our order is to first judge whether the fabric is woven, then to judge the materials (polyester, polypropylene or what kind of staple, and then to staple fiber). The pattern makes a general judgment. Then according to the filter cloth thickness, density, gram weight technical index comprehensive determination of filter cloth model. Of course, the premise is that you have a similar model of the specification table.