It is not difficult to produce non-woven fabrics for masks, but the difficulty lies in the raw materials
Today, let's take a look with Xinyu Non-woven to find out what are the raw materials for the production of mask non-woven fabrics:
The use of melt-blown non-woven fabrics: Because the fibers produced by melt-blown technology are very fine, they are melted together. The spray cloth has a large specific surface area, small open space and large open space ratio, so its filterability, shielding, heat insulation and oil absorption are difficult to have in non-woven fabrics produced by other separate processes.
So meltblown nonwovens are widely used in medical and industrial masks, thermal insulation materials, filtration materials, medical and health materials, oil absorption materials, wipes, battery separators and sound insulation materials. The non-woven fabric of the mask has stable operation, high output and high efficiency, and the produced melt-blown cloth has uniform net laying, good strength, good air permeability, non-toxic and tasteless, and meets environmental protection standards. Manufacturing width: 1.6 meters, 2.4 meters, 3.2 meters, 4.2 meters, through the practice of a number of production equipment, the overall technical indicators have reached the advanced level of similar products in the world.
The core material of the mask, the production process of meltblown cloth is: raw material---->melt extrusion---->filtration (meltblown cloth filter for mesh change)---->measurement (melt blown cloth melt pump) ----> air heating and tightening ----> melt blowing ----> web forming ----> winding. The main functions of the melt pump in the melt-blown cloth production line are: accurate metering, control of the output value and fiber fineness, and continuous and uniform delivery of the melt to the spinneret. The special melt pump for meltblown cloth supplied by Xinyu Non-woven has the advantages of stable output pressure, improved product quality, increased extrusion output value, and reduced unit energy consumption.
The upstream raw materials of the mask industry are mainly polypropylene and ethylene oxide, among which the melt-blown cloth made of polypropylene is relatively scarce, and the shortage of melt-blown cloth mainly lies in its production equipment, melt-blown cloth, etc. After the spray cloth is produced, the next mask machine for supply and demand is relatively simple to expand production. According to news reports, spinnerets and fans, the key components of meltblown cloth production equipment, need to be imported. Under normal circumstances, the acquisition cycle is 8 months and the device debugging cycle is 2 months, which is the bottleneck in the bottleneck. According to media reports, the market price of meltblown cloth for masks has risen from 18,000-19,000 yuan/ton in late 2019 to 150-200,000 yuan/ton, and short-term orders are now saturated.
From a technological point of view, it is not difficult to produce ordinary masks, but there are two main problems: in the upstream of the industrial chain, the demand for petrochemical materials and materials ensures the supply.
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