Three-proof cloth purchase knowledge and dyeing problem solving

The three-proof cloth is a special kind of cloth that major industries and even their own homes need to use. As an example, the general raincoat tents and the cloth used in warehouses are basically made of three-proof cloth, such as walking outdoors in wind and rain for a long time, kneeling or sitting on wet ground, there will be no water seepage . But now there are too many fakes in China's society. People often buy fake products when they buy things. People are not familiar with the special fabric of three-proof cloth, so it is very easy to be deceived when buying. easy thing. A very important criterion for the quality of canvas is the density of latitude and longitude. The higher the density, the better the strength, that is, the better the quality. Then look at the appearance, the rougher the surface, the lower the quality, so if you take a piece of canvas, first look at the roughness, and then you can test the softness with your hands, the better the softness, the description The quality is also better. Also, when buying, the tarpaulin can be tested with water. A good canvas product is rubbed with hands and then poured with water to see if it leaks. If there is a problem, the quality of the tarpaulin is not good. where it goes. The three-proof cloth is colorful, which brings a lively color to the dead fabric. Compared with the serious green, the three-proof cloth of various colors can be more popular among consumers. So how did the various colors of the cloth come from? In general, dyeing technology is used to add color to the original colorless fabric. In terms of pigment dyeing process, the main material of the three-proof fabric is glass fiber, so it is not as easy to dye as other fabrics when dyeing. Therefore, when dyeing the three-proof cloth, we should pay attention to some problems to prevent the bad phenomenon of dyeing. 1. In the design of the dyeing formula, it is necessary to consider that after the fabric is waterproofed, the hue of the fabric is prone to major changes, and usually the hue will become darker; for this reason, in the process of color matching by technicians, we cannot rely solely on the hue of the fabric after dyeing. Standard, three-proof cloth, otherwise the hue will exceed the standard, which will affect the consistency of the hue of the cloth surface; for this, a suitable dye formula must be designed, and a series of lofting preparations should be made before the product is produced: that is, a small sample in the laboratory, a large car Set out medium and large samples; and pay attention: before setting out, keep the locomotive clean, the normal operation of equipment, machinery and electrical appliances, and the arrival of personnel in place to ensure the high quality of the stake out from all aspects. 2. The three-proof cloth after dyeing or printing should be fully washed to remove as much as possible the surface active ingredients such as dispersant, wetting agent, detergent and so on, so as to prevent the existence of these auxiliaries from affecting the waterproofing agent. waterproof effect. In the preparation process of the waterproofing agent liquid, the three-proof cloth should pay attention to the chemical material, namely: waterproofing agent→cross-linking agent→Catalyst to prevent flocculation and precipitation; and pay attention that the chemical material barrel should be the material barrel, and metal iron barrels are prohibited to prevent the stability of the material liquid from being affected; and note: once the material liquid is configured, it should be used up within 24 hours , otherwise it is easy to deteriorate and make the material liquid invalid.

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