Non-woven fabrics directly uses polymer slices, short fibers or filaments to form a net through airflow or machinery, and then undergoes hydroentanglement, needle punching, or thermal bonded reinforcement, and finally undergoes post-finishing to form a non-woven fabric. The new fiber product with a soft, breathable and flat structure has the advantages of not producing fiber scraps, being strong, durable, silky soft, and having a cotton feel. Compared with cotton fabrics, non-woven products are easy to form and cheaper.
Advantages and disadvantages of non-woven fabrics:
Advantages: 1) Breathability 2) Filterability 3) Heat preservation 4) Water absorption 5) Waterproof 6) Stretchability 7) Not messy 8) Soft 9) Light 10) Elastic and recoverable 11) No directionality of fabric 12) High productivity and fast production speed 13) Low price and mass production, etc.
Disadvantages: 1) Poor strength and durability 2) Cannot be washed 3) Fibers are arranged in a certain direction, so they are easy to split at right angles, etc.
Therefore, the improvement of production methods is mainly focused on improving the prevention of splitting.
Nonwoven fabric main uses can be roughly divided into:
(1) Medical and sanitary non-woven fabrics: surgical gowns, protective clothing, disinfection wraps, masks, diapers, civilian rags, wipes, wet face towels, magic towels, soft towel rolls, beauty products, sanitary napkins, sanitary pads, and disposable sanitary cloths, etc.;
(2) Home decoration non-woven fabrics: carpets, wall coverings, tablecloths, sheets, bedspreads, curtains, scouring pads, mops, etc.;
(3) Clothing non-woven fabrics: clothing lining, wadding, toe hard lining, heel lining, underwear, artificial deerskin, synthetic leather, warm shoe lining, cloth shoe sole lining.
(4)Automobile industry: waste textile thermal insulation felt, shockproof felt, canopy, cushion lining, carpet, door lining, automobile filter element, molded cushion etc.;
(5) Industry: floppy disk lining, speaker cloth, filter material, speaker sound insulation felt, sealing ring lining, cable cloth, fiberglass reinforced towel, industrial wipes, shockproof pads, insulating materials, tape base lining, pipe base lining, ventilation duct, sapphire cloth etc.;
(6) Agricultural non-woven fabrics: crop protection fabrics, seedling cloths, irrigation fabrics, thermal insulation curtains, etc.
(7) Military non-woven fabrics: High-performance fiber bulletproof vests, gun cleaning cloths, military map base cloths, etc.
(8) Other non-woven fabrics: space cotton, thermal insulation and sound insulation materials,oil-absorbing felt, cigarette filters, tea bags, colored flags, etc.
(9) Civil engineering, construction: reinforcement, reinforcement, filtration, oil felt base cloth, drainage board, roof waterproof material, railway, highway, embankment, geotextile felt,water slope, port sound insulation, sewer, heat protection, separation, drainage.
(10) Packaging: composite cement bags, luggage lining cloth, packaging base lining, quilt lining, storage bags, mobile jacquard luggage cloth, etc
(11)Other uses: launch vehicle, missile head heat protection cone, tail nozzle throat lining, high-grade banknote printing paper, space shuttle heat-resistant tile, map cloth, calendar cloth, artificial cloth, oil painting canvas, etc.
Classification of non-woven fabrics:
1. Spunlace non-woven fabrics
The spunlace process is to spray high-pressure fine water flow onto one or more layers of fiber webs to entangle the fibers with each other, so that the fiber webs can be reinforced and have a certain strength.
2. Thermo-bonded non-woven fabrics
Thermo-bonded non-woven fabrics refer to adding low-melt fiber with our other fiber, and then heated, melted, cooled and reinforced into cloth.
3. Pulp air-laid non-woven fabrics
Air-laid non-woven fabrics can also be called dust-free paper and dry papermaking non-woven fabrics. It uses air-laid technology to open the wood pulp fiberboard into fiber, and then uses air-flow method to make the fibers condense on the mesh curtain, and the fiber web is reinforced into cloth.
4. Wet-laid nonwovens
Wet-laid nonwovens are made by opening fiber raw materials placed in a water medium into fiber, and mixing different fiber raw materials to form a fiber suspension slurry. The suspension slurry is transported to a web-forming machine, then the fibers are formed into a web in a wet state and then reinforced into a cloth.
5. Spunbond nonwovens
Spunbond nonwovens are made by laying the filaments into a web after the polymer has been extruded and stretched to form continuous filaments. The web is then bonded, thermal bonded, chemicall bonded or mechanically reinforced to make the web into a nonwoven fabric.
6. Meltblown nonwovens
The process of meltblown nonwovens: feeding—melt extrusion—fiber formation—fiber cooling—web formation—reinforcement into cloth.
7. Needle-punched nonwovens
Needle-punched nonwovens use the puncture of needles to reinforce the fluffy web into cloth.
8. Stitched nonwovens
The stitching method uses a warp knitting coil structure to reinforce the fiber web, yarn layer, non-woven material (such as plastic sheet, plastic thin metal foil, etc.) or their combination to make nonwovens.
If you need any nonwoven machine or nonwoven fabric,pls feel free contact us.