What is non-woven? What are the advantages of non-woven fabrics?
What is non-woven?
Nonwoven fabric, also called non-woven fabric, is a fabric that does not require spinning and weaving. It only aligns or randomly arranges the woven staple fibers or filaments to form a web structure, and then uses mechanical and thermal bonding. Or reinforced by chemical methods.
Its characteristics: moisture-proof, breathable, flexible, light weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, no latitude and longitude lines, tailoring and sewing are very convenient, and light and easy to shape, deeply loved by handmade lovers favorite.
Commonly used in the market are domestic non-woven fabrics and imported non-woven fabrics.
Imported non-woven fabrics: The so-called imported non-woven fabrics are not imported from abroad, but only imported fabrics. Washable, not easy to pilling, of course, can not afford the ball, bright colors, thick, relatively strong, tensile resistance is better.
Domestic non-woven fabric: Compared with domestic non-woven fabric, the color is relatively poor, relatively soft, suitable for doing some soft things, such as mobile phone ornaments, children's toys, etc., this is easier to pilling.
Advantages of non-woven
1. Light weight
Polypropylene resin is the main raw material for production. The specific gravity is only 0.9, only three-fifths of cotton, which is fluffy and feels good.
It consists of fine fiber (2-3D) light-point hot melt bonding. The finished product is soft and comfortable.
Heat sealing nonwoven
3. Water, breathable
The polypropylene slice does not absorb water, the water content is zero, the finished product has good water repellency, and is composed of 100% fiber with porosity, good gas permeability, easy to keep the cloth surface dry and easy to wash.
4. Non-toxic, non-irritating
The product is produced in accordance with FDA food grade raw materials, does not contain other chemical components, has stable performance, is non-toxic, has no odor, and does not irritate the skin.
Wet non-woven fabric
5. Antibacterial, anti-chemical agent
Polypropylene is a chemically blunt substance, which is free of insects and can isolate the bacteria and insects in the liquid. Antibacterial, alkali corrosion and finished products do not affect the strength due to erosion.
The product has water-extracting properties, is not moldy, and can isolate the bacteria and insects in the liquid, and is not mildewed.
7. Good physical properties
It is made by directly spinning polypropylene into a mesh, and the strength of the product is better than that of the general staple fiber product, the strength is non-directional, and the longitudinal and transverse strengths are similar.
Non-woven (non-woven) classification
1, spunlace non-woven fabric
The high-pressure fine water stream is sprayed onto one or more layers of the fiber web to entangle the fibers with each other, so that the fiber web can be reinforced and has a certain strength.
2, heat sealing non-woven fabric
It refers to adding fibrous or powdery hot-melt bonding reinforcement material to the fiber web, and the fiber web is further fused and cooled to form a cloth.
3, pulp airlaid non-woven fabric
Also known as dust-free paper, dry papermaking non-woven fabrics. It uses the 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.
4, wet non-woven fabric
The fiber raw material placed in the water medium is opened into a single fiber, 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 fiber is meshed in a wet state and then reinforced into a cloth.
Needle punched nonwoven
5, spunbond non-woven fabric
After the polymer has been extruded and stretched to form continuous filaments, the filaments are laid into a web, and the web is then subjected to self-bonding, thermal bonding, chemical bonding or mechanical reinforcement to make the web into no Woven cloth.
6, meltblown non-woven fabric
The process: polymer feeding --- melt extrusion --- fiber formation --- fiber cooling --- netting --- reinforcement into cloth.
7, needle punched non-woven fabric
It is a kind of dry non-woven fabric. The needle-punched non-woven fabric is a puncture effect of a lancet, and the fluffy fiber web is reinforced into a cloth.
8, stitching non-woven fabric
Is a kind of dry non-woven fabric, the stitching method is to use a warp knitting coil structure to reinforce the web, the yarn layer, the non-woven material (such as plastic sheet, plastic thin metal foil, etc.) or a combination thereof, Made of non-woven fabric.