What is nonwoven fabric?

Because it is a kind of fabric that is not spun and woven, it is only formed by orienting or randomly supporting textile short fibers or filaments to form a network structure, and then strengthening it by mechanical, thermal bonding or chemical methods. Simply put, instead of interweaving one yarn, the fibers are bonded together directly by physical methods, so when you get the sticky scales in your clothes, you will find that you can't even pull out a thread. Nonwovens break through the traditional textile principle and have the characteristics of short technological process, fast production speed, high output, low cost, wide application and many sources of raw materials.

Its main uses can be roughly divided into:

(1) Medical and health care cloth: surgical gown, protective garment, disinfection cloth, mask, diaper, female sanitary towel, etc.

(2) Home improvement cloth: wall covering, tablecloth, bed sheet, bedspread, etc. ;

(3) Subsequent fabrics: lining, adhesive lining, filler, special-shaped cotton, various synthetic leather base fabrics, etc.

(4) Industrial cloth: filter material, insulating material, cement packing bag, geotextile, covering cloth, etc.

(5) Agricultural cloth: crop protection cloth, seedling cloth, irrigation cloth, thermal insulation curtain, etc.

(6) Others: space cotton, heat and sound insulation materials, oil-absorbing felt, cigarette filter tips, tea bags, etc.

Classification of non-woven fabrics:

I. Spunlaced nonwovens

The spunlace process is to spray high-pressure micro-water on one or more layers of fiber web, so that the fibers are intertwined and the fiber web is strengthened with certain strength.

Second, heat-seal non-woven fabrics.

Thermal bonding non-woven fabric refers to adding fibrous or powdery hot-melt bonding reinforcing materials to the fiber web, and then heating, melting and cooling the fiber web to strengthen it into cloth.

Third, pulp airlaid nonwovens

Air-laid nonwovens can also be called dust-free paper and dry papermaking nonwovens. It uses the air-laid technology to open the wood pulp fiberboard into a single fiber state, and then uses the air-laid method to bond the fibers to the net curtain, and the fiber net is reinforced into cloth.

Fourthly, wet nonwoven fabric.

Wet-process non-woven fabrics are made by opening fiber raw materials placed in water medium into single fibers, and mixing different fiber raw materials to make fiber suspension slurry, which is conveyed to the web-forming mechanism, and the fibers are web-formed in wet state, and then reinforced into cloth.

5. Spunbonded nonwovens

Spunbonded nonwovens are made by laying the filaments into a net after the polymer is extruded and stretched to form continuous filaments, and then the net is transformed into nonwovens by self-bonding, thermal bonding, chemical bonding or mechanical reinforcement.

Six, melt-blown nonwovens

The technological process of melt-blown nonwovens: polymer feeding-melt extrusion-fiber forming-fiber cooling-web forming-reinforced cloth forming.

Vii. Needle punched nonwovens

Needle punched nonwovens is a kind of dry nonwovens. Needle-punched nonwovens are used to strengthen fluffy fiber webs into cloth by the puncture effect of needles.

Eight, stitching non-woven fabrics

Stitched nonwoven fabric is a dry nonwoven fabric. Sewing method is to use warp-knitted loop structure to strengthen net, yarn layer and nonwoven materials (such as plastic sheet, plastic thin metal foil, etc.). ) or a combination thereof.