Eco-friendly polyester cotton batting high loft garment polyester padding
Spray-bonded cotton is a kind of cotton, non-woven fabric.
The principle of forming spray-bonded cotton structure is two adhesive spraying the fluffy fibrous layer, because of the pressure in the spray, and the lower part of the suction vacuum suction, so it can penetrate the adhesive within the fiber layer, spray adhesive after fiber layer after drying and curing, the intersection between the fibers by bonding, without being bonded to one another of the fiber, there is still a considerable degree of freedom. At the same time, there are still many air - containing gaps in the three-dimensional reticulation. Therefore, the fiber layer has the heat preservation effect of porous and high fluffy.
Because spray-bonded cotton is in the spraying case, instead of adding binder in the impregnation conditions, extrusion and curing and no pressure in the spray. So, in the bonding state in the fiber, the cross point contact mostly by adhesive bridge agglomeration less, which makes Spray-bonded cotton can keep the main reason loose, soft and warm.
According to the principle of forming Penjiaomian structure, in order to co collodion can obtain excellent mechanical properties, fiber material and adhesive must be chosen, and the production process of research and selection, the selection of fibre materials becomes more and more important.
The types and specifications of fiber raw materials, plays a decisive role on the quality of spray-bonded cotton products. According to the requirements of spray-bonded cotton taking in warm, fluffy, soft features, size, length, curvature must, section shape and surface state in the fiber, a good choice.
As we all know, the quality of synthetic fiber is determined by many performance indicators. It mainly includes three categories: physical and mechanical performance index, stability performance index and processing performance index. In the process of different production process, the requirement of its quality index is not exactly the same. Use the spray-bonded cotton fiber, fine denier fiber requirements, crimp number and high fiber curl, mutual cohesion between the good. In this way, the product's expansion, compression elasticity and elastic recovery are also high.
Curling begins with a three-dimensional spiral crimp is better, the products of the bulkiness and elastic recovery rate obviously better than the same product plane wave curl; hollow high rate can give the product to the warming rate of high and low proportion of species and oil; fiber spinning oil rate, not only influences the moisture regain at the same time to improve the processing performance, product feel, eliminate the electrostatic phenomenon in the production process also plays an important role. The commonly used hollow spiral curled polyester fiber has a fineness of 6.6~7.7 (dtex), and the length is 51~76 mm.
