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  •  Meltblown cloth fully automated production line

Meltblown cloth fully automated production line

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Meltblown cloth fully automated production line Process of melt-blown non-woven fabric: polymer feeding → melt extrusion → fiber formation → fiber cooling → web formation → reinforcement into cloth 1 The development of meltblown nonwoven fabric technology-two-component meltblown technology 2 Development of meltblown nonwoven fabric technology-meltblown nanofibers Development of Meltblown Nonwoven Fabric Technology——Editing of Two-component Meltblown Technology Since the beginning of the 21s

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Meltblown cloth fully automated production line
Process of melt-blown non-woven fabric: polymer feeding → melt extrusion → fiber formation → fiber cooling → web formation → reinforcement into cloth
1 The development of meltblown nonwoven fabric technology-two-component meltblown technology
2 Development of meltblown nonwoven fabric technology-meltblown nanofibers
Development of Meltblown Nonwoven Fabric Technology——Editing of Two-component Meltblown Technology
Since the beginning of the 21st century, the development of international meltblown nonwoven fabric technology has advanced by leaps and bounds.
The number of holes in the spinneret assembly of the fully automated melt-blown cloth production line can reach 100 holes per inch, and the extrusion amount per hole can reach 0.5 g / min.
Skin-core type: It can make the nonwoven fabric feel soft and can be made into concentric, eccentric and irregular products. Generally cheap materials are used for the core, and expensive polymers with special or required properties are the outside
The skin layer, for example, the core is polypropylene and the sheath is nylon to make the fiber hygroscopic; the core is polypropylene and the sheath is a low-melting point polyethylene or modified polypropylene or modified polyester that can be used for bonding. Carbon black
The conductive fiber wraps the conductive core inside.
Side-by-side type: It can make the nonwoven fabric have good elasticity. It is usually made of two different polymers, or the same polymer with different viscosity to form side-by-side two-component fibers. It can be made by using different thermal shrinkage of different polymers. Spiral crimped fibers. For example, 3M has developed a non-woven fabric of melt-blown PET / PP bicomponent fibers. Due to the different shrinkage, it forms a spiral crimp, which makes the non-woven fabric have excellent elasticity.
Tip type: This is a compound of another polymer in the trilobal type, cross type and tip type, such as antistatic, moisture-conducting, conductive fiber can be combined with a conductive polymer, which can both conduct moisture and
Can be conductive, antistatic, and saves the amount of conductive polymer.
Micro-denier type: You can use orange petal-shaped, strip-shaped peeling type components, or island-type components. The two incompatible polymers are peeled to make a superfine fiber web, or even a nanofiber web,
The developed split bicomponent fiber is a bicomponent fiber made of two incompatible polymers that can be completely stripped in hot water in less than a second.
Mixed type: It is a fiber net that combines different materials, different colors, different fibers, different cross-sectional shapes, and even fibers in parallel with the sheath-core to have both co-spinning and two-component fibers.
Meltblown cloth fully automated production line has various performances required. Compared with general melt-blown fiber products, this type of melt-blown bicomponent fiber non-woven fabric or mixed fiber non-woven fabric can further improve the filterability of the filter medium and make the filter medium antistatic, conductive, hygroscopic, and enhanced Barrier properties, etc .; or to improve the adhesion, bulkiness and breathability of the fiber web.
The two-component melt-blown fiber of the fully automated production line of melt-blown cloth can supplement the deficiency of the performance of a single polymer, such as the ratio of polypropylene, but if it is used in medical materials, it is not resistant to radiation, so polypropylene can be used as the core The outer layer can be properly coated with a radiation-resistant polymer to solve the problem of radiation resistance. Therefore, the product can be made cheap and can fulfill the functional requirements. For example, heat and humidity exchangers that can be used in the respiratory system in the field can provide suitable natural heat and humidity. It has the advantages of light weight, disposable or convenient disinfection, low price, and the additional function of removing pollutant filters. It can be composed of two uniformly mixed two-component meltblown fiber webs. It uses sheath-core type bicomponent fiber, the core is polypropylene and the sheath is nylon. Bicomponent fibers can also be shaped cross-sections, such as trilobal and multilobal, to make their surface area larger. At the same time, they can also use polymers that can improve the filtration performance on the surface layer or blade tip. The olefin or polyester melt-blown two-component fiber web can be made into cylindrical liquid and gas filters. Melt-blown two-component fiber web can also be used in cigarette filters; using the wicking effect to make high-end ink-absorbing wicks; wicking sticks for liquid retention and infusion, etc.
Fully automated production line for meltblown fabrics, spinnerets can be combined into a total width of more than 3 meters. The diameter of the melt-blown fiber thus spun is about 500 nm. The diameter of a thin single fiber can reach 200 nm.
Due to the small orifice of the melt-blown equipment for spinning nanofibers, if no measures are taken, the output will be greatly reduced, and the number of holes in the orifice will be increased.
 
 

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