Non-woven shopping bag manufacturers tell you what are the materials of non-woven bags and the process classification of non-woven fabrics
According to different production processes, it can be divided into:
1. Spunlace: It sprays high-pressure fine water onto one or more layers of fiber webs to entangle the fibers with each other, so that the fiber webs can be reinforced and have a certain strength.
2. 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 form a cloth. (Chengdu non-woven bag Sichuan non-woven bag)
3. Pulp air-laid non-woven fabric bag: It can also be called dust-free paper and dry paper-making non-woven fabric. It uses air-laid technology to open the wood pulp fiberboard into a single fiber state, and then uses air-flow method to agglomerate the fibers on the web curtain, and then reinforce the fiber web into a cloth.
4. Wet-laid non-woven bag: It 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 are in a wet state. Down into a net and then reinforce into a cloth.
5. Spunbond non-woven bag: 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 bonded. Reinforcement method to make the web into a non-woven fabric.
6. Melt-blown non-woven bag: The process: polymer feeding --- melt extrusion --- fiber formation --- fiber cooling --- netting --- reinforcement into cloth. (Sichuan environmental protection bag, Chengdu environmental protection bag)
7. Needling: It is a kind of dry-laid non-woven fabric. The needle-punched non-woven fabric uses the piercing effect of a needle to reinforce the fluffy web into a cloth.
8. Stitch-knitting: It is a kind of dry-laid non-woven fabric. The stitch-knitting method uses the warp-knitted loop structure to couple fiber webs, yarn layers, non-woven materials (such as plastic sheets, plastic thin metal foils, etc.) or a combination of them. The body is reinforced to make a non-woven fabric.
