Polypropylene industrial yarn is a new type of industrial yarn. Its market prospects and its market competitiveness compared with polyester and nylon all require further understanding and development. According to the performance of polypropylene and the investigation of relevant industrial fiber users, polypropylene industrial yarn has a wide range of application prospects in the following fields.

1 narrow band category

Utilizing the advantages of polypropylene industrial yarn such as light weight, high strength, and high breaking capacity, the narrow tape category will become the main application area of polypropylene industrial yarns. It can be used to weave a variety of industrial suspenders, high-altitude seat belts, and trailer belts for flexible packaging. Bag slings and mail bags, use its acid and alkali can also be used for pickling slings. The use of colored polypropylene industrial yarn to woven into various widths of luggage belts, packaging tapes, and decorative tapes will give it a distinct advantage of high strength, low price, and no fading. Its excellent flexibility and high strength make it a super pressure resistant product, and it has great potential in the production of high pressure hoses. However, due to the lower melting point of polypropylene, a low temperature coating process is required.

Rope

Polypropylene not only has the advantages of light weight, non-hygroscopicity, and the same wet and dry strength, but also has resistance to transient high-stress impact. Therefore, polypropylene is particularly suitable for ropes, and it can also be used for climbing ropes, and also for packaging bags, lifting luggage, etc. . The annual output of strong ropes in China is about 60,000 tons. Most of the former were made of polyester and nylon. With the advent of polypropylene industrial yarn, it will occupy this market with excellent mechanical properties and low prices.

3. Cable

Polypropylene ropes can float on the water surface, and the surface is free from water, which facilitates crew operations. China's current cable is mainly made of polypropylene and polyethylene film-cracked fibers and monofilaments. The cost is low, but its service life is short. Domestic manufacturers have used polypropylene fiber to make cables, which is very effective. It is also used to process polypropylene high-strength filaments and polyamides into cables.

4. Filter cloth

There are hundreds of filter materials required for metallurgy, beneficiation, chemical, sugar, food, medicine, cement, ceramics, oil refining, and sewage treatment industries. The polypropylene industrial yarn has advantages of high strength, acid and alkali resistance, corrosion and corrosion resistance, light weight, good chemical stability, and good filter stripping properties, and is used in a filtration environment where the temperature does not exceed 100°C. With its non-toxic and non-mildew properties, it is used in the food, sugar, beverage, and pharmaceutical industries. The use of its high-strength in the metallurgy, mining industry, ore dressing cloth, replacing the past nylon industrial yarn or short fiber, the cost will be greatly reduced.

5. Geotextile

Using high-strength polypropylene fiber, acid and alkali resistant, anti-microbial, anti-aging, and the same dry and wet strength, high-strength polypropylene woven tops and knits work on civil works (eg, dams) built on soft ground. Reservoirs, railways, highways, etc. play a reinforcing role. In the construction of slopes, the bottom of the slope requires a high load carrying capacity. High-strength polypropylene woven geotextiles and cloth bags can stabilize slopes and reduce collapse, not only the main performance indicators of polypropylene and high-strength polypropylene geotextiles. In addition to the price factor, due to the lack of uniform testing standards and design specifications, there is not enough communication between the production unit and the engineering application unit. In spite of this, tests have been carried out on woven fabrics and on-mold bag cloths or on upper bag cloths. Domestically, we have successfully used woven tops or work bags in more than 20 projects, and the results are very good. In the past, the engineering fabric used mainly nylon high-strength yarn, which was not popularized due to its high price. With the development and application of high-strength polypropylene, due to its low cost and performance, it will surely replace it. Recently, the results of factory tests have shown that polypropylene industrial yarn can replace nylon industrial yarn weaving top and bottom fabric bags, and the cost is reduced by one third. It is also possible to mix two kinds of fibers.

6. Net bag

Safety net is a large variety of labor insurance industry. The labor insurance industry stipulates that safety nets should be provided for construction work above ten meters. Polypropylene has high strength and high elongation, so it is particularly suitable for making safety nets. Tests on labor protection products show that the performance of polypropylene industrial yarn is comparable to that of nylon industrial yarns, and the price is only 2/3 of nylon. China's aquatic fishery consumes a large number of fish nets each year. The main raw materials are polyethylene, polypropylene, and nylon. Because polypropylene has a low nodule strength after being formed into a net, polypropylene filaments with a strength of 6 g/d are currently used as a net for increasing buoyancy. .

The above applications are just a few major examples. The potential application fields of polypropylene industrial yarn need to be continuously researched and developed in the future. It will surely occupy an important position in the field of industrial textiles.