What materials are non-woven fabrics made of?

The exact name of non-woven fabrics should be non-woven fabrics, or non-woven fabrics. Because it is a fabric that does not require spinning or weaving. It just orients or randomly arranges short textile fibers or filaments to form a fiber mesh structure, and then uses mechanical, thermal bonding or chemical methods to reinforce it.

Characteristics of non-woven fabrics: ·Non-woven fabrics break through the traditional textile principles and have the characteristics of short process flow, fast production speed, high output, low cost, wide use, and multiple sources of raw materials.

Uses of non-woven fabrics: · Its main uses can be roughly divided into:

(1) Non-woven fabrics for medical and sanitary use: surgical gowns, protective clothing, sterile wraps , masks, diapers, household rags, wipes, wet wipes, magic towels, soft towel rolls, beauty products, sanitary napkins, sanitary pads and disposable sanitary cloths, etc.;

(2) Household Non-woven fabrics for decoration: wall coverings, tablecloths, sheets, bedspreads, etc.;

(3) Non-woven fabrics for clothing: linings, adhesive linings, wadding, shaped cotton, various synthetic leather bottoms Cloths, etc.;

(4) Industrial non-woven fabrics; filter materials, insulation materials, cement packaging bags, geotextiles, covering cloths, etc.;

(5) Agricultural non-woven fabrics Woven fabrics: crop protection cloth, seedling raising cloth, irrigation cloth, thermal insulation curtain, etc.;

(6) Other non-woven fabrics: space cotton, thermal insulation and sound insulation materials, linoleum-absorbing felt, cigarette filters, tea bags, etc. .

Types of non-woven fabrics: Non-woven fabrics can be divided into different production processes according to different production processes:

1. Spunlaced non-woven fabrics: spray high-pressure fine water flow onto a layer or The multi-layer fiber mesh entangles the fibers with each other, so that the fiber mesh can be reinforced and have a certain strength.

2. Heat-sealing non-woven fabric: refers to adding fibrous or powdery hot-melt adhesive reinforcement materials to the fiber web, and then the fiber web is heated, melted, and cooled to strengthen it into a cloth.

3. Pulp air-laid non-woven fabric: also known as dust-free paper and dry paper-making non-woven fabric. It uses air-laid technology to open the wood pulp fiberboard into a single fiber state, and then uses the air-flow method to agglomerate the fibers on the web curtain, and then strengthen the fiber web to form cloth.

4. Wet-laid non-woven fabrics: The fiber raw materials placed in the water medium are opened into single fibers, and different fiber raw materials are mixed at the same time to form a fiber suspension slurry, and the suspension slurry is transported to the web. Mechanism, the fibers are formed into a web in a wet state and then reinforced into cloth.

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 self-bonded and thermally bonded. , chemical bonding or mechanical reinforcement methods to turn the fiber web into a non-woven fabric.

6. Melt-blown non-woven fabric: Its process: polymer feeding---melt extrusion---fiber formation---fiber cooling---web forming---reinforcement into cloth .

7. Needle-punched non-woven fabric: It is a type of dry-laid non-woven fabric. Needle-punched non-woven fabric uses the puncture effect of needles to reinforce the fluffy fiber web into cloth.

8. Stitch-bonded non-woven fabric: It is a type of dry-laid non-woven fabric. The stitch-bonded method uses the warp-knitted coil structure to stitch the fiber web, yarn layer, and non-woven materials (such as plastic sheets, Plastic, thin metal foil, etc.) or their combination are reinforced to make non-woven fabrics.

There are many materials for non-woven fabrics, which are mainly distinguished by their uses. Here I will briefly explain. The materials include polyester, polypropylene, aramid, acrylic, nylon, composite, ES, 6080, vinylon, spandex, etc. I said they are all fibers. The finished products produced from different materials using different processes have their own very distinctive characteristics, which means that their uses are very different, and it is really not a simple matter if you want to replace each other.

Non-woven fabrics (also known as non-woven fabrics in English: NonWoven) are composed of directional or random fibers. They are a new generation of environmentally friendly materials that are moisture-proof, breathable, flexible, lightweight, non-combustible, and easy to use. It has the characteristics of decomposition, non-toxic and non-irritating, rich colors, low price, and recyclable.

For example, polypropylene (PP material) pellets are mostly used as raw materials, and are produced by a continuous one-step process of high-temperature melting, spinning, laying, and hot-pressing coiling. It is called cloth because it has the appearance and certain properties of cloth. However, they are made of chemical fibers and plant fibers on wet or dry paper machines using water or air as the suspension medium. Although they are cloth and not woven, they are called non-woven fabrics. Non-woven fabrics are a new generation of environmentally friendly materials that have the advantages of strong strength, breathability and waterproofing, environmental protection, flexibility, non-toxic and odorless, and low price. It is a new generation of environmentally friendly material that is water-repellent, breathable, flexible, non-combustible, non-toxic and non-irritating, and rich in color. If this material is left outdoors and decomposes naturally, its maximum lifespan is only 90 days. If it is left indoors, it will decompose within 8 years. It is non-toxic, odorless, and has no remaining substances when burned, so it does not pollute the environment, so environmental protection comes from this. . Non-woven products are rich in color, bright and bright, fashionable and environmentally friendly, widely used, beautiful and elegant, with various patterns and styles. They are also lightweight, environmentally friendly and recyclable. They are internationally recognized as environmentally friendly products that protect the earth's ecology. It is suitable for agricultural film, shoemaking, leathermaking, mattresses, quilts, decoration, chemicals, printing, automobiles, building materials, furniture and other industries, as well as clothing linings and medical and health disposable gloves.