What is nonwoven fabric used for?

The exact name of nonwoven fabric should be nonwoven fabric, or nonwoven fabric. Because it is a kind of fabric without spinning and weaving and the formation of fabrics, just textile staple fibers or filaments for directional or random support columns, the formation of fiber network structure, and then use mechanical, thermal bonding or chemical methods to strengthen and become. Nonwoven fabric breaks through the traditional textile principle, and has a short process, fast production speed, high yield, low cost, wide range of uses, raw material sources, etc.

Nonwoven advantages and disadvantages:

Nonwoven fabrics have a lot of advantages:1) aeration 2) filtration 3) heat preservation 4) absorbency 5) waterproofing 6) scalability 7) no fluffy 8) good hand feel, soft 9) lightweight 10 ) elastic and recoverable 11)no direction of fabric 12)high productivity and fast production speed compared to textile fabric 13)low price and mass production, etc.

The disadvantages are: 1) the strength and durability are not as good as that of textile fabric 2) it cannot be washed like other fabrics 3) the fibers are arranged in a certain direction, so it is easy to split at a right angle, etc. Therefore, the recent improvements in the production method have been focused on the improvement of the production method, and it has been possible to produce the fabric in the same way as textile fabric. Therefore, recent improvements in production methods have been focused on preventing splitting.

Its main uses can be roughly divided into:

(1) medical, health nonwoven: surgical gowns, protective clothing, disinfection cloth, masks, diapers, civilian wipes, wiping cloths, wet wipes, magic towels, soft towel rolls, beauty supplies, sanitary napkins, sanitary pads, and disposable sanitary cloths, etc.;

(2) decorative nonwovens: wallpaper, tablecloths, bed sheets, bedspreads, etc.;

(2) decorative nonwoven: wall cloths, tablecloths, bedsheets, bedspreads, etc.;

(4) nonwoven: wall cloths, tablecloths, Bed sheets, bedspreads, etc.

(3) apparel nonwoven fabrics: lining, adhesive lining, wadding, shaping cotton, all kinds of synthetic leather backing, etc.

(4) industrial nonwoven fabrics; filtering materials, insulating materials, cement bags, geotextile fabrics, wrapping fabrics, etc.

(5) agricultural nonwoven fabrics: crop protection fabrics, rice seedling fabrics, irrigation fabrics, thermal insulation curtain, etc.

(5) agricultural nonwoven fabrics: crop protection fabrics, rice seedling fabrics, irrigation fabrics, thermal insulation curtain, etc.;

(6) nonwoven fabrics: wallpapers, table cloths, sheets and covers, etc.

(6) other nonwoven fabrics: space cotton, thermal insulation materials, acoustic felt, absorbent felt, cigarette filters, bags of tea bags, etc.

Nonwoven fabrics classification

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One, spunlace nonwoven fabrics

Spunlace process is a high-pressure micro-fine water jet to a layer or layers of fibers on the fiber network, so that fibers entangled with each other, so that the fiber network can be reinforced with some strength. The fiber network is strengthened and has a certain degree of strength.

Two, heat bonded nonwoven fabrics

Heat bonded nonwoven fabrics refers to the fiber network in the addition of fiber or powder hot melt bonding reinforcement materials, fiber network and then through the heating melt cooling reinforcement into cloth.

Three, pulp into the net airflow nonwoven fabric

Airflow into the net nonwoven fabric can also be called dustless paper, dry paper nonwoven fabric. It is the use of airflow into the network technology will be wood pulp fiber board open into a single fiber state, and then use the airflow method to make the fiber condensation in the net curtain, fiber network and then reinforced into the cloth.

Four, wet nonwoven

Wet nonwoven is placed in the aqueous medium of fiber raw materials into a single fiber, at the same time make different fiber raw material mixing, made of fiber suspension slurry, suspension slurry transported to the netting mechanism, fiber in the wet state into the net and then reinforced into cloth.

Five, spunbond nonwoven fabrics

Spunbond nonwoven fabrics are in the polymer has been extruded, stretched to form a continuous filament, the filament is laid into a network, the fiber network and then after its own bonding, thermal bonding, chemical bonding or mechanical reinforcement methods, so that the fiber network into a nonwoven fabric.

Six, meltblown nonwoven fabrics

Meltblown nonwoven fabrics process: polymer feeding --- melt extrusion --- fiber formation --- fiber cooling --- into the network --- reinforcement into the cloth.

Seven, needle-punched nonwoven fabrics

Needle-punched nonwoven fabrics is a kind of dry nonwoven fabrics, needle-punched nonwoven fabrics is the use of felting needles puncture, the fluffy fiber mesh reinforcing into cloth.

Eight, sewing nonwoven fabrics

Sewing nonwoven fabrics is a dry nonwoven fabrics, sewing method is the use of warp knitting coil structure of the fiber mesh, yarn layer, non-textile materials (such as plastic sheet, plastic thin metal foil, etc.) or a combination of them to be reinforced to make nonwovens

The following is some nonwovens development prediction information for reference:

One, Nonwoven textile industry in recent years has made great development --

As of 1998, the world's consumption of nonwoven fabrics has reached 2.4 million tons. In 1970, its consumption was only 400,000 tons, and by 2007, its consumption is expected to reach 4 million tons.

Nonwoven manufacturers are mainly concentrated in the United States (41% of the world), Western Europe accounted for 30%, Japan accounted for 8%, China's production accounted for only 3.5% of the world's consumption, but 17.5% of the world. It is expected that by 2007, China's production will reach 7% of the world's output, and its consumption will increase to 21% of the world.

Man-made fibers still dominate the production of nonwovens, and the situation will not change significantly until 2007. Worldwide, 63% of the fibers used in nonwovens production are polypropylene, 23% are polyester, 8% are viscose, 2% are acrylic fibers, 1.5% are polyamide, and the remaining 3% are other fibers.

In recent years, nonwoven fabrics in the health of absorbent materials, medicine, transportation, footwear textile materials on the application of the volume has increased significantly.

Two, nonwoven production and consumption

Global consumption of nonwovens in 1983 for 800,000 tons, and to 1985 when the growth of 110 tons in 1988 for 1.4 million tons in 1998, the global consumption of nonwovens reached 2.4 million tons, is expected to 2005, its consumption can reach 3.7 million tons.

The consumption of man-made fibers used in various textiles was 16.9 million tons in 1983, grew to 20.4 million tons in 1988, and reached 30.4 million tons in 1998, and is expected to reach 37 million tons in 2005 and 38.3 million tons in 2007.

Man-made fibers in the production of nonwovens consumption growth rate is expected to 2005, its consumption growth rate can reach 10%, by 2007 when it will reach 10.4%. Part of the reason for such rapid growth in consumption in the nonwovens industry is the increase in ancillary industries in China, Southeast Asia, Latin America and the Middle East.

Three, nonwovens affect the growth rate of factors -

All the factors affecting the growth of man-made fibers can be more or less on the man-made fibers as raw materials for textiles have a certain impact, which has the greatest impact on the nonwoven textiles.

Population growth factors have a smaller impact on nonwovens than on other textiles used in apparel. However, if we consider the important application of nonwovens in baby diapers, population growth is also an important influencing factor.

The partial replacement of natural fibers has a greater impact on textiles, but not on nonwovens, which are largely dependent on man-made fibers.

Development of man-made fibers in commerce and specialized applications for nonwovens:The establishment of international economic treaties has led to growth in trade in microfibers, composite fibers, biodegradable fibers and new polyester fibers. This has had a significant impact on nonwovens, but not on apparel and knitted textiles.

Substitution of textiles and other supplies:This includes substitution by nonwoven textiles, textiles for knitting, plastic films, polyurea foams, wood pulp, leather, and so on. This is determined by the cost and performance requirements that the product needs to have.

The introduction of new, more economical and efficient production processes: i.e., the manufacture of various articles from polymers, the application of new competitive nonwovens and the introduction of specialty fibers and nonwoven textile additives.

The three major fibers used in nonwoven production are polypropylene fibers (62% of the total), polyester fibers (24% of the total) and viscose fibers (8% of the total). Between 1970 and 1985, viscose fibers were most used in the production of nonwoven fabrics. However, within the last five years, the use of polypropylene fibers and polyester fibers has begun to predominate in the field of hygienic absorbent materials and medical textiles. In the early nonwoven production market, nylon was used in large quantities, and from 1998, the use of acrylic fibers began to rise, especially in the field of artificial leather manufacturing.

Introduction of nonwoven characteristics

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Nonwoven fabric is a nonwoven fabric, it is the direct use of polymer slices, staple fibers or filaments will be fibers through the airflow or mechanical into a network, and then through the hydroentanglement, needle punching, or hot-rolled reinforcement, and finally after the finishing of the formation of non-woven fabrics. With a soft, breathable and flat structure of the new fiber products, the advantages are no fiber chips, strong, durable, silky soft, and there is a cotton feel, and cotton woven fabrics compared to the nonwoven bags easy to form, and cheap.

In terms of environmental protection, most of the current use of non-woven raw materials is polypropylene, while the raw material of the plastic bag is polyethylene, the two substances, although the name is similar, but in the chemical structure of the chemical structure is very different. Polyethylene's chemical molecular structure has a fairly strong stability, extremely difficult to degrade, so plastic bags need 300 years to decompose; and polypropylene's chemical structure is not strong, the molecular chain can be easily broken, which can be effectively degraded, and in a non-toxic form to enter the next step of the environmental cycle, a non-woven shopping bags in 90 days can be completely decomposed. And non-woven shopping bags can be reused more than 10 times, the degree of pollution of the environment after the disposal of only 10% of the plastic bag

Non-woven daily products

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Non-woven disposable products introduction

Medical non-woven products are the use of chemical fibers including polyester, polyamide, polytetrafluoroethylene (PTFE), polypropylene, Carbon fiber and glass fiber made of medical and health textiles. Including disposable masks, protective clothing, gowns, gowns, isolation gowns, lab coats, nurse's cap, surgical cap, doctor's cap, surgical bag, maternity bag, first aid kit, diapers, pillowcases, bed sheets, covers, shoe covers and other disposable medical supplies series. Compared with the traditional cotton woven medical textiles, medical non-woven fabrics have the characteristics of high filtration of bacteria and dust, low surgical infection rate, convenient disinfection and sterilization, and easy to compound with other materials. Medical non-woven products as a disposable product that is disposable, not only convenient to use, safe and hygienic, but also effective in preventing bacterial infections and medical cross-infection. In China, for medical and health industry investment in recent years has reached more than 100 billion yuan, of which the total output value of hygiene products and materials amounted to about 64 billion yuan, and diversified direction.

Nonwoven flour finishing bags

Flour bags made of nonwoven fabric, with lightweight, environmentally friendly, moisture-proof, breathable, flexible, flame retardant, non-toxic, non-irritant, recyclable and so on, it is internationally recognized to protect the earth's ecology of the environmentally friendly products, is widely used in various types of rice and flour small packages, such as: wheat flour, corn flour, buckwheat flour. Rice and so on. This kind of non-woven products using ink printing, beautiful and generous, color realistic, non-toxic, tasteless and non-volatile, more environmentally friendly and clean than ink printing, fully meet the requirements of modern environmental protection. Due to the reliable quality of products, the price is affordable and the service life is long. The main specifications are 1kg, 2.5kg, 5kg, 10kg and other specifications of rice and flour finishing bags, packaging bags and so on.

Nonwoven fashion shopping bag

The fashion shopping bag made of nonwoven fabric has the characteristics of light weight, environmental protection, moisture-proof, breathable, flexible, flame retardant, non-toxic, non-irritant, recyclable, etc., and it is internationally recognized as an environmentally friendly product to protect the earth's ecology. This kind of nonwoven products adopts the water and ink printing, which is beautiful and generous with lifelike colors, non-toxic, tasteless, and non-volatile, and it is more than the ink printing. This kind of non-woven products adopts water-ink printing, beautiful and generous, colorful and realistic, non-toxic, tasteless and non-volatile, more environmentally friendly and clean than ink printing, which fully meets the environmental requirements of modern people.

Nonwoven characteristics of the definition and use of classification

Durable, disposable. Insulation, conductive. Softness, rigidity. Fine density, expansion.

Isotropic, anisotropic. Filtering, breathable, impermeable. Elasticity, stiffness.

Light, loose, warm. Thin as a cicada, thick as felt. Waterproof and breathable.

Ironing, sewing, molding. Flame retardant, anti-static. Water permeable, waterproof, abrasion resistant, pileability.

Resistant to crease, good elasticity, high moisture absorption, water repellency.

Medical and health care: surgical gowns, caps, hoods, plaster pads, sanitary napkins for women, baby diapers, wet wipes, sanitary underwear, dust cover.

Agriculture:Harvest cloth, shed cloth.

Industry: floppy disk liner, speaker cloth, filtration material, speaker acoustic felt, sealing ring liner, cable cloth, fiberglass reinforcing towel, industrial wiping cloth, anti-vibration liner, insulating material, adhesive tape base liner, pipe base liner, ventilation duct, sandpaper cloth.

Packaging: composite cement bags, bag liners, packaging base liners, quilt wadding, storage bags, mobile jacquard bagging cloth.

Clothing & Shoes:Clothing lining, wadding, toe hard lining, heel lining, underwear, artificial deerskin, synthetic leather, warm shoe lining, cloth shoe sole lining.

Automotive industry: waste spun heat-insulating felt, shock-absorbing felt, headliner, seat cushion lining, carpet, door lining, automotive filter cartridge, molded seat cushion.

Household apparel: sofa upholstery, carpet, wallpaper, mirror cloth, tea bag, vacuum cleaner bag, shopping bag, printed bed sheet, social cover, upholstery, sleeping bag, dry cleaning cloth, cleaning cloth, curtains, tablecloth, lampshade.

Civil engineering, construction: reinforcement, reinforcement, filtration, linoleum backing, drainage board, roof waterproofing materials, railroads, highways, berms, water slopes, harbor soundproofing, sewers, heatproofing, separation, and drainage.

Other uses: carrier rockets, missiles, heat-resistant head cones, tail nozzle throat lining, high-level printing paper, space shuttle heat-resistant tiles, map cloth, calendar cloth, artificial cloth, oil painting canvas.