Spunbond non-woven fabric is made from polyester or polypropylene as raw materials, sliced and spun into long filaments through screw extrusion, and directly formed into a mesh diameter through hot tying and bonding. It is a cloth like cage cover with good breathability, moisture absorption, and transparency. It has the characteristics of keeping warm, moisturizing, frost resistant, antifreeze, transparent, and air regulating, and is lightweight, easy to operate, and corrosion-resistant. Thickened non-woven fabric has good insulation properties and can also be used for multi-layer cage covers.
Technical types of spunbond nonwoven fabrics
The main technologies for spunbond nonwoven fabrics in the world include Leckfeld technology from Germany, STP technology from Italy, and Kobe Steel technology from Japan. The current situation, especially with Leifen technology becoming the mainstream technology in the world. At present, it has developed to the fourth generation technology. The characteristic is the use of negative pressure ultra high speed airflow stretching, and the fibers can be stretched to about 1 denier. Many domestic enterprises have already replicated it, but due to many cutting-edge issues in its core technology that have not yet been solved or mastered, it will take time for domestic equipment manufacturing enterprises to reach the level of Leifen technology.
What is the process flow of spunbond non-woven fabric?
The main technologies for spunbond nonwoven fabrics in the world include Leckfeld technology from Germany, STP technology from Italy, and Kobe Steel technology from Japan. The current situation, especially with Leifen technology becoming the mainstream technology in the world. At present, it has developed to the fourth generation technology. The characteristic is the use of negative pressure ultra high speed airflow stretching, and the fibers can be stretched to about 1 denier.
The process flow of spunbond non-woven fabric is as follows:
Polypropylene: polymer (polypropylene+feed) – large screw high-temperature melt extrusion – filter – metering pump (quantitative conveying) – spinning (spinning inlet upper and lower stretching suction) – cooling – airflow traction – mesh curtain forming – upper and lower pressure rollers (pre reinforcement) – rolling mill hot rolling (reinforcement) – winding – rewinding and slitting – weighing and packaging – finished product storage.
Polyester: processed polyester chips – high-temperature melt extrusion of large screw stalks – filter – metering pump (quantitative conveying) – spinning (stretching and suction at spinning inlet) – cooling – airflow traction – mesh curtain forming – upper and lower pressure rollers (pre reinforcement) – rolling mill hot rolling (reinforcement) – winding – rewinding and cutting – weighing and packaging – finished product storage.
Spunbond nonwoven fabrics types
Polyester spunbond non-woven fabric: The main raw material of this non-woven fabric is polyester fiber. Polyester fiber, also known as polyester fiber, has characteristics such as high strength, wear resistance, and high temperature resistance. During the production process of polyester spunbond nonwoven fabric, a strong bond is formed between fibers through the spunbond process, resulting in continuous filaments that are then laid into a web. Finally, nonwoven fabric is made by thermal bonding or other reinforcement methods. This non-woven fabric is widely used in various fields such as packaging, filtering materials, and healthcare.
Polypropylene spunbond nonwoven fabric: Polypropylene spunbond nonwoven fabric is made mainly from polypropylene fibers. Polypropylene fibers are polymerized from propylene, a byproduct of petroleum refining, and have excellent breathability, filtration, insulation, and waterproofing properties. The production process of polypropylene spunbond nonwoven fabric is similar to that of polyester spunbond nonwoven fabric, which is also made of fibers through spunbond technology. Due to the excellent properties of polypropylene fibers, polypropylene spunbond nonwoven fabrics have a wide range of applications in packaging, agriculture, construction and other fields.
In addition, spunbond nonwoven fabrics can also be classified based on other factors, such as fiber thickness, nonwoven fabric thickness, density, and usage. These different types of spunbond nonwoven fabrics have unique application value in their respective fields.
Conclusion
Overall, there are various types of spunbond nonwoven fabrics with unique features, and their application fields are also very extensive. When choosing spunbond non-woven fabric, it is necessary to select the appropriate type based on specific usage scenarios and requirements.
Dongguan Liansheng Non woven Technology Co., Ltd. was established in May 2020. It is a large-scale non-woven fabric production enterprise integrating research and development, production, and sales. It can produce various colors of PP spunbond non-woven fabrics with a width of less than 3.2 meters from 9 grams to 300 grams.
Post time: Sep-07-2024