What is melt - blown nonwovens Technology?
Melt - blown nonwovens technology - two - component melt - blown technology
Two-component melt-blown technology,including leather core type, parallel type,triangle,etc.,usually close to 2 fiber size, melt-blown spinneret assembly hole number can reach 100 holes per inch,each hole extrusion capacity can reach 0.5g/ min.
The two-component melt-blown fiber can supplement the performance of a single polymer, such as polypropylene is relatively cheap, but for medical materials,it is not resistant to radiation exposure, so polypropylene as the core,in the outer layer of the appropriate radiation-resistant polymer wrapped on the outside can solve the problem of radiation resistance.
This allows the product to be inexpensive and fulfill functional requirements, such as heat and humidity exchangers for the respiratory system in the medical field, which can provide suitable heat and humidity similar to natural heat and humidity.It is lightweight, disposable or easy to sterilize, inexpensive, and can also serve as an additional filter to remove contaminants.It can be composed of two evenly mixed two-component melt-blown fiber mesh.
Adopt skin core type two component fiber, the core is polypropylene, the cortex is nylon.Two-component fibers can also be shaped in special sections, such as trilobes or polylobes, to increase their surface area, and polymers can also be used in the surface or tip parts to improve filtration performance.The olefin or polyester melt-blown two-component fiber mesh can be used for cylindrical liquid and gas filters.Melt-blown two-component fiber net can also be used for cigarette filter tip;Using the core suction effect to make high-grade ink absorption pellets;The core suction rod and so on.
Melt - blown nonwovens technology - Melt - blown nanofibers
In the past,the development of meltblown fiber is based on the patented technology of Exxon,but in recent years,the international development has broken through the Exxon technology to the finer nanoscale fiber.
Due to the small orifices of the melt-blown equipment for spinning nano fibers,the output will be greatly reduced if no measures are taken. Therefore,it is necessary to increase the number of orifices of spinneret orifices and combine many unit components (depending on the width) together,so that the output can be greatly increased during spinning.
Because thin spinnerets with high density holes are expensive and prone to fracture (crack when heated under high pressure),new bonding techniques have been developed to enhance the fastness of spinnerets so that they do not leak under high pressure.
Nano melt - blown fibers can be used as filtration medium,which can significantly improve filtration efficiency.There are also data showing that because the fibers in nanometer meltblown nonwovens are finer,lighter and lighter meltblown nonwovens can be used to composite with spunbonded fabric,which can still bear the same pressure of water head,and SMS products made from it can reduce the proportion of meltblown fiber.
The above two points are melt-blown nonwovens technology,we are a professional melt-blown nonwovens manufacturer,Huizhou Jinhaocheng nonwovens Co.,Ltd.I hope this article has given you an idea of melt-blown nonwovens.
Image information melt blown nonwoven
Post time: Jan-13-2021