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[ 2018-12-26 ] How much do you know about the production process of nonwoven fabrics?

Author : Guide Nonwoven     
Nonwoven fabric is a fabric that does not need to be spun woven fabric. It only aligns or randomly woven short fibers or filaments to form a web structure, which is then reinforced by mechanical, thermal bonding or chemical methods.  To put it simply: it is not woven and braided together by one yarn, but the fibers are bonded directly by physical means, so when you get the sticky name in your clothes, you will find that it is impossible to draw a single thread.  Nonwoven fabric breaks through the traditional textile principle, and has the characteristics of short process flow, fast production speed, high output, low cost, wide application and many raw materials.

Its main uses can be roughly divided into:

(1) Medical and sanitary fabrics: surgical gowns, protective clothing, sterile cloth, masks, diapers, women's sanitary napkins, etc.
(2) Household decorative cloth: wall coverings, tablecloths, bed sheets, bedspreads, etc.
(3) Cloth with lining: lining, adhesive lining, flake, styling cotton, various synthetic leather fabrics, etc.
(4) Industrial fabrics: filter materials, insulating materials, cement bags, geotextiles, coated cloths, etc.
(5) Agricultural cloth: crop protection cloth, nursery cloth, irrigation cloth, heat preservation curtain, etc.
(6) Others: space cotton, thermal insulation materials, oil absorbing felt, smoke filter, bag and tea bags, etc.

Nonwoven fabric production process:

The spunlace process is to spray a high pressure fine water stream onto one or more layers of the fiber web so that the fibers are entangled with each other, so that the fiber web can be reinforced and has a certain strength.  Pulp air laid nonwoven fabric air laid nonwoven fabric can also be called dust free paper, dry papermaking nonwoven fabric.  It uses 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.  Heat bonded nonwoven fabric: thermal bonded nonwoven fabric refers to the addition of fibrous or powdered hot melt adhesive reinforcement material to the web.   The web is then heat melted and cooled to form a cloth.  The wet-laid nonwoven fabric will be placed.  The fiber raw materials in the aqueous medium are opened into single fibers, and at the same time, different fiber raw materials are mixed to form a fiber suspension slurry, and the suspended pulp is transported to a web forming mechanism, and the fibers are netted in a wet state and then reinforced into a cloth.  The above is a brief introduction to the production process of nonwoven fabrics.

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