Melt-blown method and spunbond method are two kinds of processing technology of non-woven melt spinning. Although the steps are similar, the differences are obvious. To manufacture products that meet the standard, the meltblown processing technology should be based on different MFI polymer raw materials, and the melt extrusion amount, meltblown temperature and draft warm air rate should be properly set, and the main parameters of this processing process should be noted There is an interdependent relationship.
What are the types of meltblown cloth?
The first fabric: polypropylene, commonly known as PP
Polypropylene is a thermoplastic resin made by polymerizing propylene. According to the arrangement position of methyl group, it is divided into three types: isotactic polypropylene, atactic polypropylene and syndiotactic polypropylene. Non-woven fabrics made of polypropylene include: melt-blown non-woven fabrics, spun-bonded non-woven fabrics, SMS composite non-woven fabrics, etc.
The second fabric: polyester, commonly known as PET
Polyester is an important variety of synthetic fibers, and is the trade name of polyester fiber in China. It is a fiber-forming high polymer made from purified terephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (EG) as raw materials through esterification or transesterification and polycondensation-- Polyethylene terephthalate (PET), fiber made by spinning and post-treatment. Non-woven fabrics made of PET include: PET non-woven fabric, needle-punched cotton, spunlace non-woven fabric, PET spun-bonded non-woven fabric, bachelor hot-rolled non-woven fabric, air filter non-woven fabric, hot air cotton, etc.
The third fabric: PP PE composite
PP and PE are compounded into coated nonwoven fabric and coated nonwoven fabric.
The fourth fabric: a variety of materials blended
PP and PE are blended to make a two-component non-woven fabric.
Fifth fabric: activated carbon + polyester
Activated carbon and polyester are combined to make activated carbon nonwoven fabric.