Spunbond thiab yaj tshuab yog ob qhov sib txawv uas tsis yog-woven cov txheej txheem tsim khoom, uas muaj qhov sib txawv tseem ceeb hauv cov khoom siv raw, kev ua, kev ua haujlwm ntawm cov khoom, thiab daim ntawv thov.
Lub hauv paus ntsiab lus ntawm spunbond thiab yaj tshuab
Spunbond yog hais txog cov ntaub ntawv uas tsis yog-woven los ntawm extruding polymer cov ntaub ntawv nyob rau hauv ib tug molten lub xeev, txau cov khoom molten mus rau ib tug rotor los yog nozzle, rub nws mus rau hauv lub molten lub xeev thiab sai solidifying nws los ua ib tug fibrous khoom, thiab ces interweaving thiab interlocking cov fibers los ntawm mesh los yog electrostatics spinning. Lub hauv paus ntsiab lus yog extrude lub melted polymer los ntawm ib tug extruder, thiab ces mus los ntawm ntau yam txheej txheem xws li cua txias, stretching, thiab directional stretching, thaum kawg tsim ib tug tsis-woven npuag.
Meltblown, ntawm qhov tod tes, yog txheej txheem ntawm ejecting polymer cov ntaub ntawv los ntawm lub xeev molten los ntawm lub siab ceev nozzle. Vim muaj kev cuam tshuam thiab cua txias ntawm cov cua kub ceev, cov ntaub ntawv polymer sai sai rau hauv cov ntaub ntawv filamentous thiab ntab hauv huab cua, uas tom qab ntawd ua tiav lawm los yog ntub dej los tsim cov fiber ntau ntawm cov ntaub tsis-woven. Lub hauv paus ntsiab lus yog tshuaj tsuag cov ntaub ntawv kub kub molten polymer, ncab lawv mus rau hauv cov fibers zoo los ntawm kev kub ceev airflow, thiab sai sai solidify rau hauv cov khoom mature nyob rau hauv cov huab cua, tsim ib txheej ntawm cov ntaub ntawv zoo uas tsis yog-woven npuag.
Cov khoom sib txawv
Spunbonded non-woven fabrics feem ntau siv cov tshuaj fibers xws li polypropylene (PP) los yog polyester (PET) ua raw cov ntaub ntawv, thaum yaj tshuab tsis-woven fabrics siv polymer cov ntaub ntawv nyob rau hauv ib tug molten lub xeev, xws li polypropylene (PP) los yog polyacrylonitrile (PAN). Spunbonding xav tau PP kom muaj MF ntawm 20-40g / min, thaum melting yuav tsum 400-1200g / min.
Kev sib piv ntawm cov yaj cua tshuab fibers thiab spunbond fibers
A. Fiber ntev – spunbond li filament, yaj cua tshuab raws li luv fiber
B. Fiber zog: Spunbonded fiber ntau zog> Melted fiber zog
C. Fiber fineness: Melted fiber ntau zoo dua spunbond fiber ntau
Cov txheej txheem sib txawv
Kev ua haujlwm ntawm spunbond non-woven npuag suav nrog melting tshuaj fibers ntawm qhov kub thiab txias, kos lawv, thiab tom qab ntawd tsim cov qauv fiber ntau los ntawm kev txias thiab ncab; Melt blown non-woven npuag yog txheej txheem ntawm txau cov ntaub ntawv polymer rau hauv cov huab cua los ntawm lub siab ceev nozzle, sai txias thiab ncab lawv mus rau hauv cov fibers zoo nyob rau hauv qhov kev txiav txim ntawm high-ceev airflow, thaum kawg tsim ib txheej ntawm ntom fiber ntau network qauv.
Ib qho ntawm cov yam ntxwv ntawm cov ntaub nplaum uas tsis yog-woven yog tias cov fiber ntau zoo yog me me, feem ntau tsawg dua 10nm (micrometers), thiab feem ntau fibers muaj qhov zoo ntawm 1-4 rm.
Lub zog sib txawv ntawm tag nrho cov kab spinning los ntawm cov yaj yaj nozzle mus rau lub tshuab txais tsis tuaj yeem sib npaug (vim qhov hloov pauv ntawm tensile quab yuam ntawm high-temperature thiab high-speed airflow, ceev thiab kub ntawm cua txias, thiab lwm yam), uas ua rau cov fiber ntau tsis sib xws.
Lub uniformity ntawm fiber ntau nyob rau hauv lub spunbond nonwoven npuag mesh yog ho zoo dua li cov tshuaj tsuag fibers, vim hais tias nyob rau hauv cov txheej txheem spunbond, cov txheej txheem spinning yog ruaj khov, thiab cov kev hloov hauv kev tsim thiab cua txias yog me me.
Spinning overflow txawv. Melt tshuab spinning yog 50-80 ℃ siab tshaj spunbond spinning.
Lub stretching ceev ntawm fibers txawv. Spinning pluas mov 6000m / min, yaj tshuab 30Km / min.
Tus huab tais stretched nws deb tab sis tswj tsis tau nws. 2-4 m, fused 10-30 cm.
Cov cua txias thiab traction tej yam kev mob yog txawv. Spinnbond fibers tau kos nrog huab cua zoo / tsis zoo ntawm 16 ℃, thaum fuses tau tshuab nrog huab cua zoo / tsis zoo nyob ze 200 ℃.
Cov khoom sib txawv ua haujlwm
Spunbonded non-woven fabrics feem ntau muaj lub zog tawg thiab elongation, tab sis qhov kev ntxhib los mos thiab kev sib txuam ntawm cov fiber ntau mesh tej zaum yuav tsis zoo, uas ua tau raws li cov kev xav tau ntawm cov khoom lag luam xws li hnab khw; Melt blown non-woven fabric muaj breathability zoo, pom, hnav tsis kam, thiab tiv thaiv zoo li qub, tab sis tej zaum yuav muaj tes tsis zoo thiab lub zog, thiab tuaj yeem siv los ua lub ntsej muag kho mob thiab lwm yam khoom.
Txawv daim ntawv thov teb
Spunbonded non-woven fabrics yog dav siv hauv kev kho mob, khaub ncaws, tsev, kev lag luam thiab lwm yam kev lag luam, xws li lub qhov ncauj qhov ntswg, hnab looj tes phais, rooj zaum npog, ntaub, thiab lwm yam; Melt blown non-woven npuag yog siv rau hauv kev kho mob, kev noj qab haus huv, kev tiv thaiv, kev tiv thaiv ib puag ncig thiab lwm yam, xws li cov npog ntsej muag siab, cov khaub ncaws tiv thaiv, lim, thiab lwm yam.
Xaus
Melt blown non-woven npuag thiab spunbond non-woven npuag yog ob yam ntaub ntawv uas tsis yog-woven nrog ntau cov txheej txheem tsim thiab cov yam ntxwv. Nyob rau hauv cov nqe lus ntawm daim ntawv thov thiab kev xaiv, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo xav txog cov kev xav tau tiag tiag thiab kev siv cov xwm txheej, thiab xaiv cov khoom siv tsis-woven npuag uas haum tshaj plaws.
Lub sij hawm xa tuaj: Feb-17-2024