By Scott Chin • 06/3 @ 7:12 • 112 Comments
Meltblown cloth is a melt-blown nonwoven cloth formed by drawing the polymer melt trickle extruded from the die spinneret orifice with high-speed hot air flow, thereby forming superfine fibers and collecting the superfine fibers on a screen or roller, and simultaneously bonding the superfine fibers by itself. These superfine fibers with unique capillary structure increase the number and surface area of fibers per unit area, thus making meltblown cloth have good filterability, shielding, thermal insulation and oil absorption. It can be used in the fields of air, liquid filtering materials, isolation materials, absorbing materials, mask materials, thermal insulation materials, oil absorbing materials, wiping cloths and the like.
At present, application of meltblown fabric is very extensive. Since the 1970s, various charging technologies and charging technologies through mixing different fibers and other distinctive electrostatic filters have been developed and utilized. Therefore, meltblown fabric electret process is widely used in filter materials.
Most of the traditional filtering materials use ordinary meltblown cloth, which has poor filtering effect and cannot effectively filter tiny particles and bacteria in the air. According to the research, only polypropylene nonwovens with electrifying materials and electrifying treatment added in the production process by using the meltblown fabric electre process have higher filtration efficiency. At present, China has resumed production. As a manufacturing center in the world, a good meltblown fabric electre process is crucial to the production of high-quality masks.
Compared with ordinary fabric filter materials, polypropylene produced by meltblown fabric electre process has increased electrostatic adsorption on the basis of mechanical trapping mechanisms such as collision, interception and diffusion, thus improving filtration efficiency without increasing filtration resistance. At the same time, it also has antibacterial and bacteriostatic properties.
The mechanism of action of the electret antibacterial meltblown cloth is that the strong electrostatic field and microelectronic flow generated by the electret stimulate bacteria, causing the protein and nucleic acid to mutate and damage, destroying the surface structure of the bacteria, resulting in the death of the bacteria. The tourmaline itself releases negative ions to block the metabolic process of some bacterial microorganisms, including respiratory system, enzyme activity, and material transfer from cell walls, thus inhibiting bacterial cells from playing an antibacterial role.
According to the principle of action, the meltblown fabric electre filter material mainly captures particles through mechanical blocking and electrostatic adsorption. The mechanical blocking effect is closely related to the structure and properties of the material: when the meltblown cloth is charged by corona with a voltage of several hundred to several thousand volts, the fibers diffuse into reticular holes due to the repulsive effect of static electricity, and the size between the fibers is much larger than the size of dust, thus forming an open structure. When dust passes through meltblown filter materials, electrostatic action can not only effectively attract charged dust particles, but also capture polarized neutral particles by electrostatic induction effect.
The higher the electrostatic potential of the material, the higher the charge density of the material and the more point charges, the stronger the electrostatic effect. Corona discharge can greatly improve the filtration performance of polypropylene meltblown fabric. The addition of tourmaline particles can effectively improve electre efficiency. The filtration efficiency increases, the filtration resistance decreases, the surface charge density of fiber increases, and the storage capacity of fiber net also increases. It is better to add 6% tourmaline to electrify. Too many electret materials will increase the mobility and neutralization of carriers. The electret masterbatch should have nano or micro-nano size and uniformity. A good electret master batch can improve spinning performance, does not affect nozzles, improves filtration efficiency, resists electrostatic decay, reduces air resistance, increases the density and depth of charge trapping, enables more charges to have a greater probability to exist in aggregates in fibers, enables trapped charges to be in a lower energy state, is not easy to escape from charge carrier traps or be neutralized, and slows down decay.
In addition to the meltblown fabric electret process, from meltblown fabric industry in China, meltblown cloth mainly uses Polypropylene (PP) as the main raw material. Polypropylene is a polymer produced by addition polymerization of propylene. It is colorless, odorless, non-toxic, translucent and waxy solid, and is the main material for producing masks. Due to its chemical resistance, heat resistance, electrical insulation and high mechanical strength, polypropylene has been developed and applied in many fields such as machinery, automobiles, electronic appliances, construction, textile, packaging, agriculture, forestry, fishery and food industry. Public data show that one ton of high melt index fiber can produce about 250,000 germ protective masks. Based on this calculation, the high melt index fiber currently used in the production of germ protective masks is about 80 tons per day, and the annual consumption is 28,000 tons. The diameter of the fiber can reach 1-5 microns. As the raw material polypropylene for meltblown cloth is from petroleum, petrochemical enterprises have advantages in producing meltblown cloth. The special material for meltblown cloth is polypropylene with high melt index. The higher the melt index of polypropylene, the finer the fibers will be and the better the filterability of the melt blown cloth will be.
This article is an original article for CLI Inspection, who is committed to providing high-quality product inspection technology and know-how sharing for global importers and retailers to make imports safer.
All rights reserved. The contents of this website provided by CLI Inspection may not be reproduced or used without express permission.
For reprint, please contact with CLI Inspection, thank you.
Senior professionals in the field of quality inspection are committed to finding and sharing valuable experiences.
Online casino mit maestro bezahlen, kmwsspielplatz de magic mirror online echtgeld.
Methoden um spielautomaten zu gewinnen, mPtlq – betsson online casino bewertung.
vpn for firefox
mcafee vpn
best free vpn for utorrent
how much viagra should i take what if a woman takes viagra free viagra samples no shipping
how to get a prescription for viagra average age of man taking viagra over the counter female viagra
cialis generic prices generic cialis uk cialis for women side effects
topical ivermectin cost heartgard plus ivermectin pyrantel ivermectin approved by fda
ivermectin petco ivermectin sensitivity in dogs ivermectin powder
viagra sampleviagra cialis generic cialis from india safe how long does cialis last
buying generic cialis online safe side effects of cialis cialis 10mg vs 20mg
how much is prednisone 5mg prednisone canada prices order prednisone online canada
clomid 50mg for sale where can you get clomid pills where to get clomid
generic clomid where can i buy clomid online where to buy clomid tablets
doxycycline 300 mg price doxycycline 100mg price in india doxycycline 50 mg price uk
can you buy clomid over the counter in uk clomid tablets india clomid 50 mg tablet price
clomid without prescription order clomid from canada clomid otc price
buy cheap doxycycline doxycycline price usa generic for doxycycline
ed treatment natural male ed drugs ed medication online
pills erectile dysfunction causes for ed how to treat ed
pumps for ed natural pills for ed ed meds online
erectile dysfunction pills best male ed pills drug prices
home remedies for erectile dysfunction medicine for erectile carprofen without vet prescription
ivermectin lice oral ivermectin covid 19 uptodate tractor supply ivermectin for dogs
ed treatment over the counter ed remedies best cure for ed
ivermectin for scabies in humans is stromectol the same as ivermectin durvet ivermectin paste
erectial disfunction
medications list the canadian drugstore ed meds online canada
I got what you intend,saved to my bookmarks, very decent site.
ed supplements
best pills for ed buy cheap prescription drugs online ed remedies
stromectol 6 mg tablet ivermectin for dogs fleas
prednisone 12 tablets price buy prednisone online can you buy prednisone over the counter in usa
prednisone without prescription.net order prednisone prednisone 10 mg
prednisone pharmacy prices order prednisone where can i get prednisone
durvet ivermectin pour on ivermectin ear mites stromectol tablets for humans for sale
cialis ontario purchasing cialis in the usa cialis in usa
where can i buy prednisone generic prednisone prednisone 20mg nz
how to use ivermectin for humans ivermectin for dogs heartworm ivermectin over the counter canada
buy cheap propecia generic for propecia where to buy finasteride
natural ed medications erection pills online drugs for ed
how to get prescription drugs without doctor ed prescription drugs how to get prescription drugs without doctor
best over the counter ed pills what is the best ed pill impotence pills
ivermectin for rosacea stromectol 0.5 mg selamectin vs ivermectin
cheap propecia canada buy propecia online uk propecia price
ivermectin pyrantel for dogs ivermectin dosage for covid ivermectin tablets usp
stromectol without a doctor prescription stromectol 12 mg tablets stromectol 12 mg tablets
buy prescription online from india buy prescription online from india buy prescriptions from india pharmacy
generic drugs india order online india pharmacy online pharmacy india
stromectol for humans for sale stromectol for sale prescribing stromectol
viagra where to buy viagra tablets for men viagra pills
clomid buy clomid buy clomid 50mg online
tadalafil best price 20 mg best price for daily cialis lowest price tadalafil
where to buy cheap clomid online clomid for sale canada buy clomid
stromectol for humans for sale stromectol for humans for sale stromectol for humans for sale
buy stromectol uk stromectol for sale stromectol 12 mg tablets
when will viagra be generic viagra pills viagra cost
over the counter viagra pfizer viagra 100mg price where can i buy viagra over the counter
viagra without a doctor prescription usa viagra tablets for men best place to buy viagra online
canada cialis with dapoxetine best price for daily cialis buy generic cialis
buy cialis online in usa cialis pills cialis pills australia
gdzie kupić cialis tadalafil 20mg cialis 20mg τιμη
generic cialis online overnight tadalafil without a doctor’s prescription rx online cialis
cialis dosage strengths generic tadalafil 20mg india cialis copay card
what is super cialis tadalafil 20mg cialis reliable sites
europe cialis generic version of cialis
stromectol tab 3mg stromectol otc
https://stromectolgf.com/# stromectol otc
ivermectin 1mg ivermectin purchase
https://stromectolgf.com/# cost of ivermectin cream
ivermectin lice oral stromectol for sale
prescription drugs online without doctor canadian online pharmacy
online canadian pharmacy prescription drugs canada buy online
https://drwithoutdoctorprescription.com/# pain meds online without doctor prescription
canadian drugs online canadian pharmacy online
mexican pharmacy without prescription prescription drugs online
cialis en espanol generic tadalafil 20mg india
the canadian drugstore buy prescription drugs online legally
viagra amazon viagra without a doctor prescription usa
https://sildenafilmg.online/# viagra without a doctor prescription usa
viagra cost per pill over the counter viagra
https://sildenafilmg.com/ viagra amazon
viagra shop viagra cost per pill
viagra from canada sildenafil
https://sildenafilmg.com/ viagra without a doctor prescription usa
viagra amazon cost of viagra
buy viagra online canada order viagra online
cost of viagra sildenafil
viagra for men mexican viagra
average price of prednisone prednisone 5 tablets
prednisolone prednisone prednisone canada
buy clomid online mexico buy clomiphene citrate online uk
Excellent post. I was checking continuously this blog and I am impressed! Very helpful info specifically the last part 🙂 I care for such information much. I was looking for this certain information for a long time. Thank you and good luck.
amoxicillin 500 mg cost generic amoxicillin over the counter
prednisone 20 mg prices prednisone 20mg prices
can i buy zithromax over the counter generic zithromax online paypal
https://zithromaxforsale.shop/# zithromax prescription online
zithromax order online uk zithromax over the counter uk
clomid drug clomid clomiphene citrate
https://buylasix.icu/# buy lasix online
metformin average cost metformin 500 mg tablets
tamoxifen and ovarian cancer tamoxifen and bone density
lasix 100 mg buy lasix online
https://erectionpills.best/# best ed treatment pills
https://withoutprescription.store/# buy prescription drugs
diflucan diflucan 50 mg capsule
cheap neurontin neurontin 800 pill
https://gabapentin.icu/# gabapentin buy
buy diflucan yeast infection diflucan drug coupon
buy prescription drugs online legally how to get prescription drugs without doctor
Pretty nice post. I just stumbled upon your blog and wanted to mention that I’ve really enjoyed browsing your blog posts. After all I’ll be subscribing on your feed and I’m hoping you write once more very soon!
https://gabapentin.icu/# neurontin 300 mg cap