The bag making machine can be divided into:
1. Spunlace: It sprays high-pressure micro-water flow on one or more layers of fiber webs to entangle the fibers with each other, so that the web is strengthened and has certain strength.
2. Heat-sealed non-woven bag: It refers to adding fibrous or powdery hot-melt adhesive reinforcement material to the web, and then the web is heated and melted to cool and strengthen the fabric.
3. Pulp air-laid non-woven bag: It can also be called dust-free paper and dry paper-making non-woven fabric. It uses air-laying technology to open the wood pulp fiberboard into a single fiber state, and then uses the air-flow method to agglomerate the fibers on the screen curtain, and the fiber web is then consolidated into a cloth.
4. Wet method non-woven bag: It is to open the fiber raw materials placed in the aqueous medium into single fibers, and at the same time, the different fiber raw materials are mixed to make a fiber suspension slurry, which is transported to the web forming mechanism, and the fibers are in a wet state. Lowered into a net and then consolidated 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 web, and the web is then self-bonded, thermally bonded, chemically bonded or mechanically bonded. Reinforcement method makes the web into a non-woven fabric.
6. Meltblown non-woven bag: Its process: polymer feeding --- melt extrusion --- fiber formation --- fiber cooling --- forming into a network --- strengthening into a cloth.
7. Acupuncture: It is a kind of dry non-woven fabric. Needle-punched non-woven fabric uses the puncture effect of puncture needles to strengthen the fluffy web into a cloth.
8. Stitch knitting is a type of dry-laid non-woven fabric. The stitch knitting method uses warp-knitted stitches to make webs, yarn layers, non-woven materials (such as plastic foil, plastic thin metal foil, etc.) or a combination The body is reinforced to make a non-woven fabric.
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