What are the process classifications of non-woven shopping bags?
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1. Spunlace: A high-pressure fine water stream is sprayed onto one or more layers of fiber webs to entangle the fibers with each other, so that the fiber web can be reinforced and has a certain strength.
2. Heat-bonded non-woven bag: refers to the addition of fibrous or powdered hot-melt bonding reinforcement material to the fiber web, and the fiber web is further fused and cooled to form a cloth.
3, pulp airlaid non-woven bag: can also be called dust-free paper, dry papermaking non-woven fabric. It uses the air-laid technology to open the wood pulp fiber board into a single fiber state, and then uses a gas flow method to agglomerate the fibers on the mesh curtain, and the fiber web is further reinforced 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 web is then bonded, thermally bonded, chemically bonded or mechanically. The reinforcement method makes the web into a non-woven fabric.
6. Meltblown non-woven bag: The process: polymer feeding---melt extrusion---fiber formation---fiber cooling---forming into the net---reinforcing into cloth.
7. Acupuncture: It is a kind of dry non-woven fabric. The needle-punched non-woven fabric is a puncture effect of a needle, and the fluffy fiber web is reinforced into a cloth.
8. Stitching: It is a kind of dry non-woven fabric. The stitching method is to use a warp knitting coil structure for a web, a yarn layer, a non-woven material (such as a plastic sheet, a plastic thin metal foil, etc.) or a combination thereof. The body is reinforced to form a nonwoven fabric.