of the 20th century, China's non-woven fabric industry still in the early embryonic development, and today developed into the production capacity and output are ranking first in Asia, the world's second largest producer of non-woven.
In the 21st century, non-woven fabric industry in China have more development space, must be to scale, high value-added sectors. To achieve this goal, in addition to the existing small scale, backward technology and equipment, product variety and structure of a single production line technological transformation of the reasonable addition to the use of a machine that is multi-functional or flexible production line direction is even more important. Also more in line with the market for products multi-functional, diverse, high value-added requirements.
Multi-function production line, in fact, "a machine can, or use of a machine." Enterprises more flexible production line is called. Main characteristic is the same production line can produce more than two and two structural products. To PET, PP single component spunbond technology as an example: to PET, PP spunbonded needle rolling several separate single-function production line, to form a multi-functional production lines. Can be in the same production line can produce both PET and PP spunbond needle products, but also the production of PET and PP spunbond hot rolled products, in addition to the diversification of products, it can enhance its functionality. Hot-rolled products, such as spunbond production, you can slice in the PPE and PP add antibacterial agents, flame retardants, anti-UV additives and other additives and super absorbent, so that products can be a function of high value-added products . Not only that, the product structure can be readily adjusted for different customer needs, enterprises in the manufacturing process, in accordance with Yaoqiu only need Gaibian production process conditions and spinning components in the spinning plate (pore number, pore structure and parameters), the product structure will change.
In product variety and product structure, domestic consumption of non-woven fabric is the biggest two varieties of raw materials, one PP, second PET, there is a small amount of PP / PE composite staple fiber. In the product structure, there are staple acupuncture, hot air and other products. Abroad in recent years of acupuncture and PET spunbond PP spunbond technology and product development hot very quickly. In particular, PET spunbonded hot products from industrial, agricultural, medical, health, clothing and other decorations to a wide range of applications, the average rate of more than 10% growth. Because PET spunbond-performance hot-rolled products, such as insulation, air permeability (wet), cover, seedling, frost prevention, pest control, anti-bird, water conservation, such as soilless culture in all widely used in agriculture. If used in vegetables, can yield about 20%, and allow 10 to 20 days in advance of vegetables listed.
China is a more than 800 million farmers, vast agricultural country, well PET spunbond development and application of hot-rolled products, in terms of the more important to China. Joined the WTO in particular, the rapidly increasing agricultural production and a higher quality requirements. According to market research, China's agriculture and health, only two major areas of hot-rolled products on the demand for spunbond quite considerable in amount, the potential economic benefits are significant. Experts predict that only the amount of the annual market potential of agriculture have more than 50 million square meters, but this piece of the market share of only 1% of the species most of the polyethylene (DPE) and polypropylene (PP), and PET spunbond share of hot rolled products is almost zero; medical and health of the potential market for the annual amount of 600 million square meters, while the market share of only 6%.
Spunbond non-woven fabric of a machine, not only greatly enhance the production flexibility of enterprises, the demand can be adapted to a variety of production processes, improve equipment utilization, improve the economic efficiency of enterprises. At the same time, enterprises can also reduce the investment in civil engineering, rational planning of land resources, reduce energy consumption, so that their technology line management structure is more reasonable and more economical, more competitive enterprises. Visible, multi-spunbond non-woven fabric development and application of new technologies is imperative.
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