3 Classification of nonwoven fabrics
1) Hydroentangled Nonwoven
The hydroentanglement process is to spray a high-pressure micro-fine water jet onto one or more layers of fiber webs so that the fibers are entangled with each other and the web is reinforced with a certain strength.
2) Thermally bonded nonwoven
Thermally bonded nonwoven refers to the addition of fibrous or powdered hot melt bonding reinforcing material to the fiber web, which is then heated and melted and cooled to reinforce the cloth.
3) Pulp air flow nonwoven
Airflow into the network of non-woven fabrics can also be called dust-free paper, dry paper non-woven. It is the use of airflow into the network technology to open the wood pulp fiberboard into a single fiber state, and then use the airflow method to make fiber agglomeration in the formation of network curtain, fiber network, and then reinforced into cloth.
4) Wet nonwoven fabric
Wet non-woven fabric is placed in the aqueous medium to open the fiber raw materials into a single fiber while making different fiber raw materials mixed to make fiber suspension pulp, suspension pulp transported to the web-forming mechanism, fiber in the wet state into the web, and then reinforced into cloth.
5) Spun bond Nonwoven
Spun bond nonwoven fabric is formed after the polymer has been extruded and stretched to form a continuous filament, the filament is laid into a network, and the fiber network then undergoes its own bonding, thermal bonding, chemical bonding, or mechanical reinforcement methods to make the fiber network into a nonwoven fabric.
6) Melt blown nonwoven
The process of melt blown nonwoven fabric: polymer feeding — melt extrusion — fiber formation — fiber cooling — web formation — reinforcement into cloth.