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Application of silica sol in textile/paper industry
Source:Dongying Yiming New Materials Co.,ltd
Treating fibers or fabrics with silica sol endows the fibers or fabrics with many excellent properties due to the attachment of silica particles to the surface of the fibers. Silica sol and oil agent are used together to spray or impregnate wool, which improves the spinnability of wool, reduces broken ends, prevents sparks, and improves the yield. When using electrostatic flocking to treat the fluff, the use of silica sol and oil agent can greatly improve the anti-static performance of the fluff in the electric flocking. The use of silica sol in warp yarn sizing can make the size well dispersed, improve the adhesion of the size, make it easy to drop the size, shorten the drying time, reduce the influence of humidity changes and reed wear, and have a significant effect on reducing broken ends. Resin treatment is often required in the finishing of fabric fibers to make the fiber products wrinkle-resistant, more elegant, and resistant to washing and abrasion. If silica sol is used in resin treatment, it can prevent the scratching of synthetic fibers, make the product more rigid, and enhance the resistance to washing and abrasion. Silica sol is also widely used in the paper industry. If the photographic paper coated with diazo photosensitive liquid is pretreated with silica sol as the main component, or mixed with silica sol and photosensitive liquid, the paper surface will be smooth, the image will be clear, and the exposure range will be increased. The pulverized metal silica powder is directly reacted with sodium silicate or potassium silicate heated to a certain temperature, and the high-concentration, low-viscosity silica sol is applied to the surface of kraft paper or cardboard for packaging cement to prevent its accumulation. Slip, and can improve the humidity resistance and strength of paper products. Treating cellophane with a waxy substance composed of silica sol, glycerin, monostearic acid, etc. can overcome its stickiness at high temperatures, and is often used as an anti-sticking agent for cellophane.