According to different production processes, non-woven shopping bags can be divided into:
1, spunlace non-woven bag
Spunlace non-woven bags are sprayed high-pressure fine water jets onto one or more layers of fiber webs to entangle the fibers with each other, so that the webs can be reinforced and have a certain strength.
2, heat-sealing non-woven bag
heat-sealing non-woven bag refers to adding fibrous or powdery hot-melt adhesive reinforcement material to the fiber web, and then the fiber web is heated, melted and cooled to reinforce into a cloth.
3, pulp air-laid non-woven bag
Pulp air-laid non-woven fabric bags can also be called dust-free paper and dry paper-making non-woven fabrics. It uses air-laid netting to open the wood pulp fiberboard into a single fiber state, and then uses air-flow method to agglomerate the fibers on the netting curtain, and then the fiber net is reinforced into a cloth.
4, wet non-woven bag
The wet-laid non-woven bag is to open the fiber raw materials placed in the water medium into single fibers, and at the same time mix different fiber raw materials to form a fiber suspension slurry, which is transported to the web forming mechanism, and the fibers form a web in a wet state. Reinforce into cloth.
5, spunbond non-woven bag
Spunbond non-woven bags are made after the polymer has been extruded and stretched to form continuous filaments, the filaments are laid into a net, and the fiber net is then bonded by itself, thermally bonded, chemically bonded or mechanically reinforced. Turn the web into a non-woven fabric.
6, meltblown non-woven bag
The process of meltblown non-woven bags: polymer feeding—melt extrusion—fiber formation—fiber cooling—forming net—reinforcement into cloth.
7, needle punched non-woven bag
Needle-punched non-woven bags are a kind of dry-laid non-woven fabrics. Needle-punched non-woven fabrics use the puncture effect of needles to reinforce the fluffy web into a cloth.
8. Stitched non-woven bags
Stitch-woven non-woven bags are a kind of dry-laid non-woven fabrics. The stitch-knitting method uses warp-knitted loop structure for fiber webs, yarn layers, non-woven materials (such as plastic sheets, plastic thin metal foils, etc.) or their The assembly is reinforced to make a non-woven fabric.