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Complete Study Of Non-Woven Fabrics

Dec. 16, 2019

Nonwovens, also known as nonwovens, are made of directional or random fibers.It is called cloth because of its appearance and certain properties.The short answer is that it's not made up of individual strands of yarn woven together. Instead, the fibers are glued together by physical or chemical means.

First, the characteristics of non-woven fabric: non-woven fabric without warp and weft thread, cutting and sewing are very convenient, and easy to shape light. Nonwovens break through the traditional textile principle, and have the characteristics of short process flow, fast production rate, high yield, low cost, wide application and many sources of raw materials. The strength and durability are poor compared to textile fabrics and cannot be washed like other fabrics.Because the fibers are arranged in a certain direction, they tend to split at right angles, etc., improvements in production methods have been made primarily to prevent fragmentation.

Two, the classification of non-woven fabrics

Non-woven fabric according to the different production process can be divided into: spunlace non-woven fabric: is the high pressure micro water jet to a layer or multi-layer fiber network, so that the fibers intertwined together, so that the fiber network can be strengthened and have a certain strength. 

Features: 1. Flexible entanglement does not affect the original characteristics of the fiber and does not damage the fiber.2. The appearance is closer to traditional textiles.3. High strength, low fuzz.4. High hygroscopicity, rapid hygroscopicity.5. Soft hand, good drape.6. Varied appearance.7. Long production process and large floor area.8. Complicated equipment, high energy consumption and high water quality requirements.

Application: disposable medical products, Medical curtain, surgical gown, surgical cover, Medical dressing materials, wound dressings, Medical gauze, aviation dishcloth, clothing lining base cloth, coating base cloth, electronic industry advanced dishcloth, cosmetic cotton, incontinence wet wipes, mask covering materials, etc.

Incontinence Wet Wipes

Incontinence Wet Wipes

Thermal bonding non-woven fabric: refers to the addition of fiber or powder hot melt bonding reinforcement material in the fiber network, the fiber network through the heating melt cooling reinforcement into cloth. Features: surface bonding hot rolling surface is more smooth, point bonding hot rolling relatively fluffy. Application: baby diapers and women's sanitary napkins covering materials, ointment base cloth, clothing lining, masks, etc.

Pulp flow into the net of non-woven cloth can also be called dust-free paper, dry paper non-woven cloth. It is the use of air into the net technology of wood pulp fiberboard opened into a single fiber state, and then use the air flow method to make the fiber agglutinate in the net curtain, fiber network reinforcement into cloth.Features: good matte, soft feel, super hygroscopicity. Application: medical Hygiene materials, especially disposable hygiene products with high water absorption (such as diapers, sanitary towels, wet face towels, wipes, etc.).

Wet non-woven fabric is placed in the water medium of the fiber raw materials opened into a single fiber, at the same time to make different fiber raw materials mixed, made of fiber suspension slurry, suspension slurry transport to the network mechanism, fiber in the wet state into the network and then reinforced into the cloth. 

Features: 1. High production speed, up to 400m/min. 2. You can make full use of staple fibers.3. The product fiber mesh uniformity is better. 4. High water consumption and one-time investment.1. Special paper: dust/liquid filter paper, tea bag. 2. Industrial use: filters, insulating materials, sound-absorbing materials.3. Medical application: medical backing, medical tape, surgical bag and wrapping materials. 4. Civil: wallpaper, etc.

Spunbonded non-woven fabric is in the polymer has been extruded, stretch and form a continuous filament, the filament laid into a network, the fiber network through its own bonding, thermal bonding, chemical bonding or mechanical reinforcement method, so that the fiber network into non-woven fabric.

Features: 1. Fiber mesh consists of continuous filament.2. Excellent tensile strength.3. There are many technological changes, and various methods can be used for reinforcement.4. Filament size has a wide range. Application: 1. Polypropylene (PP) : geotextile, tufted carpet base cloth, coating base cloth, medical and health materials, disposable products covering materials, etc.2. Polyester (PET) : filter materials, lining materials, tufted carpet base cloth, agricultural materials, packaging materials, etc.

Melt-blown non-woven process: polymer feeding - melt extrusion - fiber formation - cooling - into a network - reinforcement into cloth.Features: 1. The fiber net consists of very thin shorter fibers.2 fiber mesh uniformity, soft feel.3. Good filtration performance and suction performance.4. The strength of fiber net is poor.Application: filter materials, medical materials, clothing materials, battery diaphragm materials, wipes materials.

Needling non-woven fabric is a kind of dry non-woven fabric, needling non-woven fabric is to use the puncture effect of the needle to strengthen the fluffy fiber network into cloth.Features: 1. Flexible entanglement between fibers, with good dimensional stability and elasticity.2. Good permeability and filtration performance.3. Feel plump and fluffy.4. According to the requirements to produce a variety of collection patterns or three-dimensional molding products.

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