The functional compounding of the nonwoven fabric can be carried out in different ways, the purpose of which is to improve or improve the properties or functions of the composite material. The properties of the composite material have both the properties and functional characteristics of the constituent materials, and have separate constituent materials. No performance or features. The development of functional composite nonwoven fabrics can be carried out by utilizing existing equipment conditions and composite methods, with a wide range of ideas, bold innovation and careful design under the existing technical conditions.
The main ways of functional compounding include:
(1) The selection of functional fibers is carried out by mixing various functional fibers or functional fibers with ordinary fibers, and the specific functions of the nonwoven fabric products can be imparted by needle punching, hot rolling or wet forming. It can also be directly processed into a functional nonwoven fabric from a functional polymer resin, such as a spunbond process.
(2) Processing functionalized processing Functionalization refers to the method of obtaining special functions by ordinary processing of ordinary resin or fiber, such as PVC resin, PAN solution or fiber cord solution, which can be processed into a separation membrane under certain conditions, and microfiber can be used. To make special wiping materials.
(3) The raw materials used in the multi-functional processing of functional raw materials are functional, and can be multi-functionalized by processing.
(4) Processing function compounding Several processing functionalization methods are combined, and a multifunctional nonwoven fabric can also be obtained.
(5) Functional structure compounding The nonwoven semi-finished product or finished product having different functions is combined with a nonwoven fabric or other structural materials (film, woven fabric, knitted fabric, woven fabric) to obtain a functional composite nonwoven fabric. The structural composite method generally includes adhesive compounding, hot melt compounding, flame compounding and coating compounding, and the novel composite process includes a plastic coating process, a lamination process, a reinforced composite material technology, and the like.
(6) Functional finishing The functional finishing of the semi-finished nonwoven fabric imparts various functions to the nonwoven fabric product.
(1) The selection of functional fibers is carried out by mixing various functional fibers or functional fibers with ordinary fibers, and the specific functions of the nonwoven fabric products can be imparted by needle punching, hot rolling or wet forming. It can also be directly processed into a functional nonwoven fabric from a functional polymer resin, such as a spunbond process.
(2) Processing functionalized processing Functionalization refers to the method of obtaining special functions by ordinary processing of ordinary resin or fiber, such as PVC resin, PAN solution or fiber cord solution, which can be processed into a separation membrane under certain conditions, and microfiber can be used. To make special wiping materials.
(3) The raw materials used in the multi-functional processing of functional raw materials are functional, and can be multi-functionalized by processing.
(4) Processing function compounding Several processing functionalization methods are combined, and a multifunctional nonwoven fabric can also be obtained.
(5) Functional structure compounding The nonwoven semi-finished product or finished product having different functions is combined with a nonwoven fabric or other structural materials (film, woven fabric, knitted fabric, woven fabric) to obtain a functional composite nonwoven fabric. The structural composite method generally includes adhesive compounding, hot melt compounding, flame compounding and coating compounding, and the novel composite process includes a plastic coating process, a lamination process, a reinforced composite material technology, and the like.
(6) Functional finishing The functional finishing of the semi-finished nonwoven fabric imparts various functions to the nonwoven fabric product.
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