ʻO ke kaʻina hana o ka meltblown non-woven fabrics e hoʻohana i ka ea wela kiʻekiʻe e huki i ke kahawai lahilahi o ka polymer melt extruded mai ka orifice o ka make, a laila e hana ana i nā fibers ultra-maikaʻi a me ka condensing ma luna o ka pale ʻupena a i ʻole ka wili, a me ka hilinaʻi ʻana i nā Bonds ponoʻī e lilo i lole non-woven.

Hoʻohālikelike o ka meltblown fiber a spun-bond fiber:
● ʻO ka lōʻihi o ka fiber: He filament ʻo Spunbond, ʻo ka meltblown he fiber pōkole.
● Ka ikaika o ka fiber: Spunbond fiber strength> Meltblown fiber strength.
● ʻOi aku ka lahilahi o ka fiber meltblown ma mua o ka fiber wili.

Hoʻokaʻawale ʻia nā mea hoʻoheheʻe hoʻoheheʻe i nā ʻano ākea a me ke kūpaʻa e like me kā lākou ʻano kau.

1. Kaʻina hana a me nā mea hana
Kaʻina Meltblown

Hoʻomākaukau polymer → hoʻoheheʻe hoʻoheheʻe → hoʻoheheʻe ʻia → hoʻoheheʻe ʻana i ka hui make → hoʻoheheʻe ʻia → hoʻoheheʻe → ka mea lawe

ʻO nā lako i hoʻokomo ʻia i loko o ka pp meltblown non-woven fabric production line

Mea nui: feeder, screw extruder, metering pump, meltblown die assembly, air compressor, air heater, receiving device, winding device. No ka hana ʻana i ka polyester a me nā mea waiwai ʻē aʻe, pono pū kekahi mea hoʻomaloʻo chip.

ʻO nā mea kōkua: ka umu hoʻomaʻemaʻe make, ka mea noi electrostatic, a me ka mea hoʻoheheʻe, etc.

1. Mea hānai

Hoʻokomo ʻia ma ka hopper o ka extruder. ʻO ka hana a ka mea hānai e omo i nā ʻāpana polymer i loko o ka hopper o ka extruder screw. Loaʻa iā ia kahi hana maʻamau. Hiki ke hoʻonohonohoʻia ka nui o ka hānaiʻana i kēlā me kēia manawa e like me ka puka o ka laina hana holoʻokoʻa.
2. Mea hoʻoheheʻe wili
3. ʻO ka pauma ana
4. Meltblown make poʻo hui
ʻO ka hui make ka ʻāpana koʻikoʻi o nā mea hoʻoheheʻe meltblown, ʻo ia hoʻi:

1. Pūnaehana hoʻoheheʻe polymer
2. ʻōnaehana poʻo make

Pūnaehana hoʻoheheʻe polymer
Hiki i ka ʻōnaehana hoʻoheheʻe polymer ke hōʻoia i ka kahe like ʻana o ka polymer melt ma ka lōʻihi o ka make meltblown a loaʻa kahi manawa noho like ʻole, a laila e hōʻoiaʻiʻo ai i ka meltblown non-woven lole i ʻoi aku ka nui o nā ʻano like ʻole ma ka laulā.

Pūnaehana make
Hoʻokumu ʻia ka ʻōnaehana poʻo make me ka spinneret, ka pā kinoea, ka wela a me nā mea mālama wela, etc.
ʻO ke kūlike o nā huahana meltblown pili loa i ka make. ʻO ka maʻamau, ʻoi aku ka kiʻekiʻe o ka hana ʻana o ke poʻo make meltblown, no laila ke kumukūʻai o ka hana ʻana o ke poʻo make.

Pūnaehana make

5. Ea wela
Pono ke kaʻina meltblown i ka ea wela. Hoʻopau ʻia a kānana ʻia ka hoʻopuka ʻana o ka ea i hoʻopaʻa ʻia e ka air compressor a laila hoʻouna ʻia i ka ea wela no ka hoʻomehana ʻana, a laila hoʻouna ʻia i ka hui make meltblown. ʻO ka mea hoʻomehana ea he moku kaomi, a ma ka manawa hoʻokahi pono e kū'ē i ka oxidation o ka ea wela kiʻekiʻe, no laila he kila kila ka mea.

6. Mea loaa
ʻO nā ʻano nui o ke kaʻina meltblown e loaʻa ana nā mea hana: ʻano ʻano roller, ʻano pālahalaha
ʻEkolu-Dimensional Molding (mandrel): mea hana no ka hana ʻana i nā mea kānana
E hoʻohana i kahi mea hoʻokipa ʻekolu-dimensional, i māhele ʻia i ka loaʻa manawaleʻa a me ka loaʻa mau.

Mea hoʻokipa manawaleʻa
Ke neʻe nei ka mea hoʻokipa i hope a i waho, a ua ʻeha nā fibers ma ka mandrel i nā papa he nui; ua hoʻololi ʻia ka mamao loaʻa e hana i kahi mea kānana me kahi gradient mānoanoa;
E hoʻololi i ka nui o ka mandrel e hana i nā mea kānana me nā anawaena like ʻole. Ma hope o ka hanaʻiaʻana o kēlā me kēia kānana, pono e hoʻololiʻia ka mandrel, no laila ua haʻahaʻa ka hana hana.

Mea hoʻokipa mau
ʻO ka mandrel ka loaʻa ʻana ma ke ʻano o ka cantilever beam, a aia kahi kumu hoʻoili no ka hoʻopuka ʻana i ka mea kānana tubular. Hoʻopili ʻia ke poʻo o ke kumu hoʻouna, a huki ʻia ka mea kānana tubular mai ka mandrel loaʻa a lawe ʻia i ka ʻōnaehana ʻoki.
I ka hana ʻana i nā mea kānana me nā gradients density, pono e hoʻolako ʻia nā poʻo make he nui me nā mamao loaʻa like ʻole.

7. Nā pono kōkua
ʻO nā mea kōkua nui o ka laina hana meltblown ʻo ka umu hoʻomaʻemaʻe make. E hoʻopaʻa ʻia ka lua ma hope o ka hana ʻia ʻana o ke poʻo make meltblown no kekahi manawa. I kēia manawa, pono e hoʻololi i ke poʻo make meltblown.
Pono e puhi ʻia ka make meltblown i hoʻololi ʻia e wehe i ka polymer a me nā haumia i koe i loko o ka make. Hoʻomoʻa pinepine ʻia nā wili a me nā spinnerets e wehe i nā polymers koena a me nā haumia.

2. Nā mea maka i hoʻohana ʻia i ka meltblown
Ma ke kumumanaʻo, hiki ke hoʻohana ʻia nā mea wela wela (he hoʻoheheʻe kiʻekiʻe, hoʻoheheʻe haʻahaʻa haʻahaʻa) polymer chip maka mea hiki ke hoʻohana ʻia i ke kaʻina meltblown. ʻO ka polypropylene kekahi o nā mea hoʻohana i hoʻohana nui ʻia no ka ʻenehana meltblown. Ma waho aʻe o kēia, ʻo ka polymer chip maʻamau i hoʻohana ʻia no ka ʻenehana hoʻoheheʻe ʻia he polyester, polyamide, polyethylene, polytetrafluoroethylene, polystyrene, PBT, EMA, EVA, etc. ʻO ke ʻano o ka polymer e hoʻoholo i kona helu heheʻe a me nā waiwai rheological. No kēlā me kēia mea polymer maka, aia kahi kaʻina hoʻoheheʻe hoʻoheheʻe ʻana, e like me ka wela wela, ka lōʻihi o ka lōʻihi-a-diameter ratio, ke ʻano wili, ke kaʻina hoʻomaloʻo maka, a me nā mea ʻē aʻe, aia kekahi mau ʻokoʻa.
ʻO ka Olefin polymer raw material (e like me ka polypropylene) he kiʻekiʻe o ka polymerization, no laila ʻoi aku ka kiʻekiʻe o ka wela wela ma mua o kona wahi hoʻoheheʻe 100 ℃ a i ʻole ke kiʻekiʻe e hiki ke hoʻoheheʻe ʻia me ka maʻalahi, ʻoiai ke kiʻekiʻe iki o ka mahana wela polyester ma mua o kona wahi heheʻe hiki ke hoʻoheheʻe ʻia. ʻAʻole pono e hoʻomaloʻo ʻia nā mea maka o Olefin. Pono e hoʻomaloʻo ʻia ka polyester.
ʻO ke kaumaha o ka molecular a me ka hāʻawi ʻana i ke kaumaha o ka polymer raw material nā mea koʻikoʻi e pili ana i ke kaʻina meltblown a me ka hana ʻana o nā lole i ulana ʻole ʻia.
No ke kaʻina hoʻoheheʻe ʻana, manaʻoʻiʻo ʻia ʻo ka haʻahaʻa haʻahaʻa molekala a me ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa o ka polymer maka mea pono i ka like ʻole o ka pūnaewele meltblown. ʻO ka haʻahaʻa o ka molecular kaumaha o ka polymer, ʻoi aku ka kiʻekiʻe o ka melt flow index (MFI, melt flow index, e pili ana i ke kaumaha o ka hehee e kahe ana i loko o 10 mau minuke ma lalo o kekahi kaomi a me ka mahana), a ʻo ka haʻahaʻa o ka viscosity heheʻe, ʻoi aku ka maikaʻi.

3. ka hale a me nā waiwai o ka meltblown non-woven lole
ʻO kekahi o nā hiʻohiʻona o ka meltblown non-woven fabrics ʻo ia ka liʻiliʻi o ka fiber fineness, maʻamau ma lalo o 10 μm, a ʻo ka hapa nui o ka fiber fineness he 1 a 4 μm.
ʻAʻole hiki ke kaulike nā mana like ʻole ma ka laina wili holoʻokoʻa mai ka meltblown die nozzle a hiki i ka mea e loaʻa ai ke kaulike (ʻo ka mana o ka hoʻololi ʻana o ka ikaika o ka ea kiʻekiʻe a me ka wikiwiki o ka ea, ka wikiwiki, a me ka mahana o ka ea hoʻomaha, a me nā mea ʻē aʻe), ka mea e hana ai i ka meltblown fiber ʻO nā ʻano like ʻole o ka fineness.
ʻOi aku ka maikaʻi o ke anawaena o ka fiber i loko o ka pūnaewele wili ʻole i ulana ʻia ma mua o ka meltblown fiber, no ka mea, i loko o ke kaʻina hana wili, paʻa nā kūlana wili, a ʻaʻole hoʻololi nā kūlana hoʻolālā.
ʻOi aku ka liʻiliʻi o ka crystallinity a me ke ʻano o ka meltblown fiber ma mua o ke ʻano o ka spun-bond method. No laila, ʻilihune ka ikaika o ka fiber meltblown, a ʻilihune hoʻi ka ikaika o ka pūnaewele fiber. ʻO ka ikaika o kekahi mau fiber PP penei:

ʻO ka ikaika o kekahi mau fiber PP

Ma muli o ka maikaʻi ʻole o ka meltblown fibers, ʻo ka hoʻohana pono ʻana o nā lole meltblown non-woven ma muli o nā hiʻohiʻona o kāna mau fiber ultra-fine.

4.ka noi o ka meltblown non-woven lole
I kēia manawa, hoʻohana nui ʻia nā lole meltblown non-woven no:
1 mea kānana
ʻO ka kānana ka hoʻokaʻawale ʻana o nā mea ʻāpana i hoʻopuehu ʻia i loko o ke kinoea a i ʻole ka wai.
ʻO ka mīkini kānana: sieving deposition, electrostatic deposition, diffusion deposition, etc.
ʻOi aku ka nui o nā ʻāpana ma mua o ka nui o ka pore o ka mea kānana e kānana ʻia?
Ua hōʻike ʻia nā haʻawina: hiki i nā mea kānana me ka nui o ka pore ma waena o ʻumi a me ʻumi microns hiki ke hoʻopaʻa i ka lepo a hiki i ka 1 µm. No ka hoʻomaikaʻi ʻana i ka hopena sedimentation o ka sieve, pono e hōʻemi i ka nui o ka pore o ka mea kānana, ʻo ia hoʻi, e hōʻemi i ka fineness fiber a hoʻonui i ka nui o ka mea.
Loaʻa i nā mea i ulana ʻole ʻia metblown nā mea maikaʻi o nā fiber maikaʻi, nā pores he nui, a me ka nui pore liʻiliʻi.

polokalamu noi:
ʻO ka kānana kinoea: nā maka lapaʻau, nā mea kānana no nā ea o loko.
ʻO ka kānana wai: kānana inu, kānana wai.
No ka hoʻomaikaʻi ʻana i ka hopena kānana, hiki ke hoʻemi ʻia ka maikaʻi o ka fiber a hiki ke hoʻonui ʻia ka nui o ka mea kānana, akā e hoʻonui nui ia i ke kūpaʻa kānana.
No laila, e hoʻokuʻu ʻia ka mea hoʻoheheʻe ʻole i ulana electrostatically, a hiki ke hoʻomaikaʻi ʻia kona hopena kānana ma o ka hopena electrostatic, ʻo ia hoʻi, electret treatment.
ʻO ka lole meltblown non-woven i hoʻohana ʻia i ka electret he uila static lōʻihi a hiki ke hilinaʻi i ka hopena electrostatic e pahele i ka lepo maikaʻi, no laila, loaʻa iā ia nā pōmaikaʻi o ka pono kānana kiʻekiʻe a me ke kūpaʻa filtration haʻahaʻa.
ʻO ka polypropylene ka nui o ka pale uila (7×1010Ω·cm) a me ka nui o ka hoʻopiʻi ʻana. He mea kūpono ia no ka hana ʻana i nā fiber electret. Hōʻike nā hoʻokolohua ma hope o 1440 mau hola o ka mālama ʻana i ka polypropylene meltblown non-woven lole i hoʻopaʻa ʻia ma ke ʻano kūlohelohe, ʻaʻole i loli ka pono kānana.
ʻO ka hopena o ka hoʻopau ʻana i ka electret i ka pono kānana a me ke kūpaʻa ʻana o nā lole i ulana ʻole ʻia.

ʻO ka mana o ka hoʻopau ʻana i ka electret i ka pono kānana a me ke kūpaʻa ʻana o nā lole i ulana ʻole ʻia

Hiki ke ʻike ʻia ʻaʻole i loli ke kūpaʻa kānana o ka meltblown non-woven lole ma hope o ka pau ʻana o ka electret, akā ua hoʻomaikaʻi nui ʻia ka pono kānana, ʻaʻole i hoʻohālikelike ʻia e nā lole i ulana ʻole ʻia.

2. Nā mea lapaʻau a me ke olakino
ʻO ka pale lapaʻau: kahi mea i hoʻohui ʻia (SMS) i hana ʻia me nā mea spun-bond ma ka ʻaoʻao o loko a me waho, a me nā mea hehee i waena.

3. Nā mea mālama kaiapuni
ʻO ka polypropylene meltblown non-woven fabric kahi mea hoʻoheheʻe ʻaila maikaʻi ma muli o kāna mau waiwai a me ka hoʻolālā microfiber. Ua hoʻohana nui ʻia i nā ʻāina i kūkulu ʻia e like me ʻEulopa, ʻAmelika, Iapana, a me nā mea ʻē aʻe, e like me ka ʻaila ʻaila kai, nā ʻaila ʻaila mai nā lako hana, a me ka mālama ʻana i ka wai.
ʻO ka polypropylene meltblown non-woven fabric he hydrophobic a lipophilic waiwai, kū i ka ikaika a me ka alkalis, a he haʻahaʻa haʻahaʻa ma mua o ka wai. Ma hope o ka lawe ʻana i ka aila, hiki ke lana ma luna o ka wai no ka manawa lōʻihi me ka ʻole o ka deformation a hiki ke hana hou a mālama ʻia no ka manawa lōʻihi. ʻO ka polypropylene meltblown non-woven fabrics i hanaʻia i nā kaulaʻaila, nā kaulahaoʻaila, nā ulunaʻaila, a me nā mea'ē aʻe.

4. Nā mea lole (mea mālama mahana)
Pono e loaʻa i nā mea hoʻoheheʻe wela ka maikaʻi o nā waiwai insulation wela a hiki ke hoʻohana ʻia no ka manawa lōʻihi me ka ʻole o ka hoʻololi ʻana i kā lākou mau waiwai insulation thermal.
Hōʻike nā hoʻokolohua ʻo ka ʻōnaehana fiber mesh kekahi o nā kumu nui e pili ana i ka hana hoʻoili wela o nā mea insulation thermal.
No ka meltblown composite thermal insulation mea, kona mānoanoa he uuku ka hopena i ka ea permeability, oiai ka ea permeability o polyester fiber flakes mahuahua wikiwiki e like me ka mānoanoa emi. No laila, ʻo ka meltblown composite thermal insulation material he ikaika ikaika ka makani.

5. Mea hoʻokaʻawale pākahi
He mea koʻikoʻi ka mea diaphragm o ka pākaukau a hoʻonoho pinepine ʻia ma waena o nā papa maikaʻi a me nā pā. ʻO ka hana nui ka insulate i nā papa maikaʻi a maikaʻi ʻole e hōʻoia i ka kahe o ka dielectric.
ʻO ka mea polypropylene he waikawa maikaʻi a me ke kūpaʻa alkali. ʻO ka polypropylene meltblown diaphragm material nā hiʻohiʻona o ka nui pore liʻiliʻi, porosity nui, pale liʻiliʻi, a me nā loli huahana like ʻole.