Application Fields Of Polypropylene Fiber

(1) Industrial use
Polypropylene fiber has the advantages of high strength, good toughness, good chemical resistance and antimicrobial resistance, and low price. Therefore, it is widely used in ropes, fishing nets, seat belts, luggage straps, safety nets, sewing threads, cable sheaths, and geotextiles. , filter cloth, paper felt and paper reinforcement materials and other industrial fields.
The polypropylene woven geotextile made of polypropylene fiber has excellent properties such as high strength, acid resistance, alkali resistance, antimicrobial resistance, and equal dry and wet strength. It can be used for civil engineering projects built on soft soil foundations (such as dams, reservoirs, highways, etc.) , railways, etc.) plays a reinforcing role and distributes the bearing load evenly on the geotextile, causing the roadbed to settle evenly and reducing ground cracks. When building slopes, the use of woven polypropylene geotextile can stabilize the slope, reduce slope collapse, shorten the construction period, and extend the service life of the slope. When carrying larger loads, composite geotextiles based on woven geotextiles and nonwoven fabrics can be used. Polypropylene fiber can be used as a filling material for concrete, mortar, etc. to improve the impact resistance, waterproof and heat insulation properties of concrete.
With the rapid development of the chemical industry, environmental protection, and new energy industries, polypropylene fiber has good prospects for use as a filter material. New technologies enable polypropylene fiber to have high filtration efficiency, high strength, light weight, and good stability against chemicals. The filter has good peelability. Therefore, it has good development momentum as functional products such as hydrophilic separators and ion exchange separators in pharmaceutical, chemical, environmental protection, battery and other industries. It is a new high-tech product that enhances the added value of polypropylene fiber.
(2) Decorative use
Polypropylene fiber has low density (only 65% of polyester fiber), light weight, strong covering power, good abrasion resistance, anti-microbial, anti-moth, and easy to clean. It is especially suitable for making decorative fabrics. Decorative fabrics such as carpets, sofa cloths and wall coverings and batting made of polypropylene fiber are not only low-priced, but also have the advantages of stain resistance, insect resistance, easy washing, and good resilience.
The polypropylene fibers consumed in the decoration and daily use fields are mainly filaments, hollow short fibers and spunbond non-woven fabrics. The products are mainly automotive and household decorative materials, flakes, toys, etc.
(3) Clothing use
Because polypropylene fiber has a low melting point, is easy to wrinkle, and is not easy to dye, the application of polypropylene fiber in the clothing field has been limited. With the advancement of spinning technology and the development of modified products, its application in the field of clothing is becoming increasingly widespread. Products for clothing will be the hope for the development of polypropylene.
Polypropylene fiber can be made into knitwear, such as underwear, socks, etc.; it can be made into plush products, such as shoe linings, coat linings, children's coats, etc.; it can be blended with other fibers to make children's clothing, work clothes, underwear, and clothing. Velvet fabrics and yarns, etc. For example, the development of fine and ultra-fine polypropylene spinning technology has overcome the roughness, waxy feel, and poor hygroscopicity of ordinary polypropylene fibers. Fine polypropylene fiber has softness, high strength and unique wicking effect. It is comfortable to wear, breathable and has good moisture conduction effect. It can keep the skin dry when worn close to the body. There is no feeling of dampness in summer and no feeling of coldness in winter. Clothing made of it It is 2/5 lighter than pure cotton clothing and has better warmth retention than wool. It is the best material for making sportswear, mountaineering clothing, military cold-proof clothing and underwear. Pure polypropylene fabrics, cotton-covered polypropylene fabrics and silk-covered polypropylene fabrics processed from fine polypropylene fibers have been introduced to the market. Adidas sportswear is made of double-sided fabrics made of ultra-fine polypropylene fibers and cotton. . The United States uses fine polypropylene filament as raw material to process cold-proof fleece knitted underwear for military use, and has been selected as standard military equipment by the U.S. Department of Defense.
(4) Nonwoven fabrics and polypropylene fibers for medical and health purposes
Polypropylene fiber nonwovens can be used for disposable sanitary products, such as sanitary napkins, surgical gowns, hats, masks, bedding, diaper fabrics, etc. Women's sanitary napkins, disposable baby and adult diapers have now become common products that people consume every day. In addition, polypropylene fibers that have been chemically or physically modified can have multiple functions such as exchange, heat storage, conductivity, antibacterial, odor elimination, ultraviolet shielding, adsorption, desquamation, isolation selection, agglutination, etc., and will become artificial kidneys, Important materials in many medical fields such as artificial lungs, artificial blood vessels, surgical threads and absorbent gauze. There is a growing market for labor protection clothing, disposable masks, hats, surgical gowns, bedsheets, pillowcases, mattress materials, etc.
(5) Other uses
Polypropylene cigarette tow can be used as cigarette filter filler. At present, more than half of the filters used in medium and low-end cigarettes are made of polypropylene fiber.
Woven bags made of polypropylene fiber have widely replaced sacks made of jute and have become the most important basic packaging materials for grain, industrial raw materials, fertilizers, food, ore and coal. Their form has already changed from the traditional pillow-type ladder type to the Barrel type, column type and other diversified development. Due to its low density, light weight, conformability and easy storage, it has even replaced some small containers. This type of product is in high demand. Polypropylene nonwovens are also widely used in the packaging field. For example, polypropylene nonwovens manufactured by the melt-blown method can be used for tea bags, insect repellent bags, and slow-release packaging for special occasions.
Polypropylene fibers are also great for blankets. Brushed blankets are generally made from low-twist polypropylene fibers. The blanket is insulating, insect-resistant, easy to wash, low-shrink and lightweight, making it suitable for both home and military use.
Apply polyethylene film or plasticized polyvinyl chloride to polypropylene fiber fabric using melt coating technology to make protective cloth, windproof cloth and mine exhaust pipe. Polypropylene fiber fabrics coated with asphalt or tar can be used as pond linings, and other coated fabrics can be used as retaining covers and temporary rain shields.
Artificial turf is another application of polypropylene fiber. The American company Biltrite uses polypropylene flat yarn to make a "single lawn" by looping it. Monsanto Company in the United States also uses polypropylene fiber to make suede artificial turf (called chemical grass). These artificial turfs have been used in central squares of highways, transportation stations and other scenic areas. Polypropylene fiber has low sun resistance, so ultraviolet absorbers must be added during production.
Polypropylene fiber has excellent acid and alkali resistance and good tensile strength. The canvas made with it is 1/3 lighter than ordinary canvas. It is not only easy to handle, but also reduces the cost, extends the service life, and achieves low price and high quality. Use it to make shoe lining cloth or sports shoe upper, which is strong and durable, lightweight, moisture-proof, breathable and has no sweat odor.