Many sites have a number of reports, but all the emphasis on theory, what microscopic observation, what fiber density determination are unrealistic. We do cloth business, it is necessary to determine his model within one minute, so to talk about a little practical, to share with you. Identification of fabric, we must first understand a few of the major technical indicators cloth. The major ones are, density, thickness, weight, air permeability, breaking strength and the like. There are more practical density, thickness and weight, air permeability. 1, look. (Cloth color) is concerned, a large chemical fiber cloth whitish luster. Small chemical fiber cloth dim, gray, and some, such as Nomex filter felt, the color yellow. (Cloth gloss) long-fiber cloth, the surface is smooth, glossy good, staple the cloth surface with hair. (Cloth lines) as well, such as denim, plain weave, these lines can also help you determine the model. Because the number of lines of different specifications, the specifications will be different. 2, touching. (Softness) where staple like plush fabrics such as 208,729, as soft. 734,747,758,3927 woven materials are the same kind, but different thicknesses, densities only. 3927 very rough, firm, not soft. Softness and roughness of the sample you need to hold a little bit of touch, write it down. Talk is about unclear. (Density) of the density of one touch, while the number at best, 10cm with a few wires. Cloth specifications corresponding density factor has its own, as long as you can to control roughly discern. 3, then weighed. The main is to measure the thickness of the filter cloth, preferably take a small piece of weigh (grams per square meter). 4, and then burned. Wherein the polyester black smoke burn up, burn up fat polypropylene glaucoma. Others are not allowed to burn, hard to say. 5, these are a few technical advice, our order is to determine whether the idea is woven from the fabric, and then determine material (polyester, polypropylene, or whatever), then a pair of long staple fiber lines to make a judgment about. Again depending on the thickness of the filter cloth, density, weight comprehensive evaluation of the technical indicators cloth models. Of course, the premise is that you have an idea of ??the corresponding model specification sheet 

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