What Is Non Woven Fabric
March 01, 2022
Non woven fabric is a kind of fabric that does not need spinning woven fabrics, but the orientation of the textile staple fibers or filaments, or random support to form a network structure, and then reinforced by mechanical, thermal adhesive or chemical methods. Nonwoven fabrics break through the traditional textile principles, and have the characteristics of short process flow, high production speed, high output, low cost, wide use, and many sources of non woven fabric raw material.
advantages and disadvantages of non woven :
Non woven fabric roll has many advantages: 1) breathability 2) filterability 3) heat preservation 4) water absorption 5) water resistance 6) stretchability 7) no messiness 8) good hand feeling, softness 9) lightness 10) elasticity recover 11) directionality without fabric 12) high productivity compared to woven fabric, high production speed 13) Low price, mass production, etc.
These are disadvantages : 1) It has poor strength and durability compared to textile cloths 2) It cannot be cleaned like other cloths 3) Fibers are arranged in a certain direction, so it is easy to split from a right angle. Therefore, the recent improvement in production methods is mainly aimed at preventing the improvement of division.
Its main uses can be roughly divided into:
(1) Medical and sanitary non woven fabrics: surgical gowns, protective clothing, sanitary napkins, masks, diapers, civilian rags, wipes, wet wipes, magic towels, wipes, beauty products, sanitary napkins, and health care pads, disposable hygiene cloths, etc.;
(2) Nonwoven fabrics for court decoration: wall coverings, tablecloths, bed sheets, bedspreads, etc.;
(3) Non woven fabrics for clothing: linings, fusible interlinings, battings, styling cotton, various synthetic leather backings, etc.;
(4) Industrial nonwovens; filter materials, insulation materials, cement bags,non woven geotextiles, and covered cloth;
(5) Nonwoven fabrics for agriculture: crop protection fabrics, breeding fabrics, irrigation fabrics, insulation curtains, etc.;
(6) Other non woven fabrics: space cotton, insulation and sound insulation materials, oil - absorbing felt, smoke filter, tea bags, etc.
First, non woven spunlace technology is the high - pressure micro - stream sprayed to one or more layers of fiber network, so that the fibers are entangled with each other, so that the fiber network can be reinforced and have a certain strength.
Second,thermal bonded non woven fabric is added to the fiber or powder - like hot - melt adhesive bonding material, and then heated to melt the fiber network cooling and reinforcement into a cloth.
Third, the pulp air - laid nonwoven fabric can also be called clean paper, dry paper nonwoven fabrics. It uses the air - laid technology to open the wood pulp fiber board into a single fiber state, and then uses the air flow method to agglutinate the fiber on the reticular curtain, and the fiber network is then reinforced into a cloth.
Fourth, the wet nonwoven fabric is made by opening the fiber raw material placed in an aqueous medium into single fibers, and simultaneously mixing different fiber raw materials to form a fiber suspension slurry, and the suspended slurry is transported to the web forming mechanism. Wet into the network and then reinforced into a cloth.
Fifth, spunbonded non woven fabrics in the polymer has been extruded, stretched to form a continuous filament, the filaments laid into a net, the web and then through its own adhesive, thermal bonding, chemical bonding either or mechanical reinforcement methods make the web into a non woven fabric.
Meltblown nonwoven fabric process: polymer feed -- melt extrusion -- fiber formation -- fiber cooling -- forming into web -- reinforcement into cloth.
7.Needle punched non woven fabric is a kind of dry - type non woven fabric. Acupuncture nonwoven fabrics use the puncture effect of a needle to reinforce the fluffy fiber web into a cloth.
8. Stitching nonwoven fabric is a type of dry non-woven fabrics. The stitching method uses warp - knitted stitches on webs, yarn layers, and non -textile materials ( such as plastic sheets and plastic sheets ). The foil or the like or a combination thereof is reinforced to make a non woven fabric.
