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Spewing principle structure is formed is sprayed on both sides of the adhesive layer of the fluffy fibers, since a certain pressure during spraying, and the lower portion of the suction effect of the vacuum suction when the liquid, so the inside of the fiber can penetrate the adhesive layer agents, spray adhesive layer and then through the fiber after drying, curing, make the junction points between the fibers are bonded to each other without being bonded fiber, there is still a considerable degree of freedom. Meanwhile, in a three-dimensional network structure, there are many gaps remain. Thus, the role of the porous fibrous layer having a thermal resistance, a high bulkiness. Spewing: also known as spraying cotton wool, a non-woven fabric, known as the Space cotton or cotton vacuum, it is made from natural cotton fibers, synthetic fibers or synthetic fibers by Larsson, comb, spray, baking bake curing processing. Because of its fluffy, high compression elasticity, resistance to dry and wet cleaning, and light and thermal properties, so in recent years has become a manufacturing cotton and ski jacket, suit and quilts, sleeping bags and other bedding and some an important material for industrial supplies. Washed cotton: a material softer than cotton comfortable fabric, it cotton as raw material, and then after processing the fabric skin tone more natural, better gloss, feel softer kind of fabric material. Washed cotton have easy to change, iron-free advantages. Washed cotton is divided into natural cotton and synthetic fabrics two categories. Cotton spinning: The main ultra-fine silicon hollow staple fiber as the main raw material, with part of the heat capacity of staple fibers, containing less plastic than it finished, after calendering ironing, smooth surface texture, light, delicate touch, good insulation, water resistance, not easy to deformation, etc.