Manufacturing method of pad 3D monofilament structure non-fabric composite elastic material

Abstract

The invention relates to a manufacturing method of a pad 3D monofilament structure non-fabric composite elastic material. The manufacturing method comprises the following steps: a solid nomofilament or a hollow monofilament is pressed out, randomly or deliberately swings by using the height of the distance from mold stripping to the water surface, and is bonded to form a non-fabric structure before incomplete cooling; a foaming agent and a base material are filled in the formed non-fabric structure, and foaming objects thereof are fully filled in gaps of the non-fabric to finish a composite elastic material blank; the non-fabric structure is put in a mold, the foaming agent and the base material are injected, and foaming objects thereof are fully filled in the mold for cooling and mold stripping to finish a finished blank; and the finished blank is finished through a cold pressing or hot pressing technology. The manufacturing method has the following beneficial effects: a new composite elastic material is formed by injection foaming as a pad filling material, and has the advantages of ventilation, support force, lightness, easy molding, water washing and bacteria resistance in a traditional material; the atmospheric damage by PU sponge foaming can be reduced; and the purpose of recycling is achieved.

Description

technical field [0001] The invention relates to a composite elastic material manufacturing technology, in particular to a method for manufacturing a mat-like 3D monofilament tissue non-woven composite elastic material. Background technique [0002] 3D monofilament structure, also known as 3D material or 3D spacer fabric, is a new type of pure fabric material with good air permeability, elasticity and support. At present, it is widely used in mattresses, pillows, car seat cushions and other industries that require good elasticity and air permeability. [0003] There are many types of existing 3D monofilament structures. For example, the middle monofilaments are arranged vertically at X-90°, which breaks through the 0° support of traditional loose fibers. The density is 800 times that of springs, so that it can provide cushioning protection and is suitable for mattresses. , Cushion products and other products that require cushioning and protection; another example, 3D mattres...

AI Technical Summary

Problems solved by technology

[0005] However, the existing 3D monofilament non-woven fabrics also have many defects. For example, ①it is easy to have noise and odor, and must be cushioned by the surface material to lose the original air permeability; However, the thicker the thickness, the poorer the air permeability and insufficient support; ③ It does not have environmental protection functions, and countries have formulated the use ratio of foamed sponge