Based on the production process is divided into the following five:
1, hydroentanglement nonwoven fabric: hydroentanglement process is a high-pressure micro-fine water jet to one or more layers of fibers on the fiber network, the fibers are entangled with each other, so that the fiber network can be reinforced with a certain strength.
2, thermally bonded nonwoven fabrics: thermally bonded nonwoven fabrics refers to the fiber network in the addition of fibrous or powdered hot melt bonding reinforcing material, the fiber network and then heated and melted and cooled to reinforce the cloth.
3, pulp airflow into the net nonwoven fabric: airflow into the net nonwoven fabric can also be called as dustless paper, dry paper nonwoven fabric. It is the use of airflow into the network technology of wood pulp fiber board open into a single fiber state, and then use the airflow method to make the fiber coagulation in the net curtain, the fiber network and then reinforced into the cloth.
4, wet nonwoven fabrics: wet nonwoven fabrics are placed in aqueous media fiber raw materials into single-fiber open, at the same time to make different fiber raw materials mixed, made of fiber suspension slurry, suspension slurry conveyed to the netting mechanism, the fibers in the wet state into the net and then reinforced into cloth.
5, spunbond nonwoven: spunbond nonwoven is in the polymer has been extruded, stretched to form a continuous filament, filament laying into the network, fiber network and then after its own bonding, thermal bonding, chemical bonding or mechanical reinforcement methods, so that the fiber network into a nonwoven.
? Expanded Information:
Development of China's nonwoven industry:
China's nonwoven industry started late, but developed very rapidly. In the early 1980s, the output was less than 10,000 tons. in the mid to late 1990s, China set off a climax of developing nonwoven products. In addition to the use of domestic production lines, Guangdong, Zhejiang, Jiangxi, Hunan and other provinces also introduced production lines from abroad.
China's nonwoven products, the development of the speed greatly exceeds the average development of the textile industry, the annual growth rate of 8-10%, is the fastest growing industry in the textile industry. Because China's nonwoven industry has gone upscale, many enterprises and products in the international are highly competitive. And through years of exploration and development, China's nonwoven enterprises have come out of their own characteristics of the road.
In the coming period, China's nonwoven industry should focus on adjusting the variety structure, improve the grade, to diversification, serialization, specialization and high performance transformation. It is expected that in the next decade, the demand for nonwoven fabrics in various application industries will continue to increase, segmentation, functionalization, industrialization will become the direction of technical research and development of nonwoven fabrics.
Baidu Encyclopedia-Nonwoven Fabrics
Baidu Encyclopedia-Nonwoven Fabrics Manufacturing