Chinese nonwoven machine suppliers professionally introduce non-woven fabric category knowledge.
According to the application requirements, nonwoven fabrics can be divided into two categories: disposable application type and durable.
According to the production process classification, they are divided into the following nine categories.
The hydroentanglement process is a high-pressure micro-fine water jet to one or more layers of fiber webs. So that the fibers are entangled with each other, thus enabling the fiber web to be reinforced and have a certain strength.
thermally bonded nonwoven fabric refers to the addition of fibrous or powdered hot melt adhesive reinforcing material to the fiber web. So that the fiber web is heated and then molten and cooled to reinforce the cloth.
airflow into the network of non-woven fabrics, also known as dust-free paper, dry paper non-woven. It is the use of airflow into the web technology to turn wood pulp fibers into single fibers, with airflow to make the fiber agglomeration in the web curtain and then reinforced into cloth.
Wet nonwoven fabric is placed in the aqueous medium to open the fiber raw materials into single fibers, while making different fiber raw materials mixed. It made of fiber suspension pulp, suspension pulp transported to the web-forming mechanism, fiber in the wet state into a web and then reinforced into cloth.
Spunbond nonwoven fabric is formed after the polymer has been extruded and stretched to form continuous filament. The filament is laid into a net, and the fiber net is then bonded by itself, thermal bonding, chemical bonding or mechanical reinforcement methods to make the fiber net into a nonwoven fabric.
The process of meltblown nonwoven fabric: polymer feeding — melt extrusion — fiber formation — fiber cooling — web formation — reinforcement into cloth.
Needle-punched nonwoven fabric is a kind of dry nonwoven fabric. Needle-punched nonwoven fabric uses the piercing effect of felting needle to reinforce the fluffy fiber network into cloth.
Sewn nonwoven fabric is a kind of dry nonwoven fabric. The sewn method uses the warp knitting coil structure to reinforce the fiber web, yarn layer, non-textile materials (such as plastic sheet, plastic thin metal foil, etc.) or their combination to make nonwoven fabric.
mainly used in the production of medical and sanitary materials to obtain a better feel and not scratch the skin. Such as sanitary napkins and sanitary pads are using the hydrophilic function of hydrophilic nonwoven fabrics. Hydrophilic nonwoven fabric is produced by adding hydrophilic agent on the fiber in the production process of nonwoven fabric. And then producing nonwoven fabric. Its process can be used in one of the above 8 categories.
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