Dab tsi yog qhov txawv ntawm spunbond thiab meltblown

Ob qho tib si spunbond thiab meltblown yog cov txheej txheem thev naus laus zis rau kev tsim cov ntaub tsis-woven siv cov khoom siv polymers ua cov ntaub ntawv raw, thiab lawv qhov sib txawv tseem ceeb nyob hauv lub xeev thiab cov txheej txheem ntawm cov polymers.

Lub hauv paus ntsiab lus ntawm spunbond thiab meltblown

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 lub rotor los yog nozzle, stretching thiab sai solidifying nyob rau hauv lub molten lub xeev los tsim cov ntaub ntawv fibrous, thiab ces interweaving thiab interlocking cov fibers los ntawm mesh siv los yog electrostatic spinning. Lub hauv paus ntsiab lus yog extrude lub melted polymer los ntawm ib tug extruder, thiab ces mus los ntawm ntau yam xws li txias, stretching, thiab directional stretching mus rau thaum kawg tsim ib tug tsis-woven npuag.

Meltblown yog txheej txheem ntawm txau cov ntaub ntawv polymer los ntawm lub xeev molten los ntawm kev kub ceev nozzles. Vim muaj kev cuam tshuam thiab cua txias ntawm high-speed airflow, cov ntaub ntawv polymer sai sai solidify rau hauv filaments thiab disperse nyob rau hauv cov huab cua. Tom qab ntawd, los ntawm kev tsaws ntuj lossis kev ua haujlwm ntub dej, cov ntaub fiber ntau zoo uas tsis yog-woven yog thaum kawg tsim. 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 lawv mus rau hauv cov khoom mature nyob rau hauv cov huab cua, tsim ib txheej ntawm zoo non-woven ntaub ntaub.

Qhov txawv ntawm yaj tshuab tsis-woven npuag thiab spunbond non-woven npuag

Kev tsim khoom sib txawv

Melt tshuab tsis-woven npuag yog tsim los ntawm yaj txau tshuab, qhov twg cov ntaub ntawv polymer yog yaj thiab txau rau hauv ib lub qauv, thaum spunbond non-woven npuag yog ua tiav rau hauv cov ntaub tsis-woven los ntawm melting chemical fibers rau hauv cov khoom fibers los ntawm hnyav hnyav los yog kub kub, thiab tom qab ntawd ua tiav rau hauv cov ntaub ntawv tsis-woven los ntawm kev siv tshuab lossis tshuaj lom neeg.

Cov txheej txheem sib txawv

(1) Cov kev cai rau cov khoom siv raw yog txawv. Spunbond yuav tsum muaj MFI ntawm 20-40g / min rau PP, thaum yaj tshuab xav tau 400-1200g / min.

(2) Qhov kub spinning txawv. Melt tshuab spinning yog 50-80 ℃ siab tshaj spunbond spinning.

(3) Lub stretching ceev ntawm fibers txawv. Spunbond 6000m / min, yaj tshuab 30km / min.

(4) Hmoov zoo, qhov kev ncua deb tsis du. Spunbond 2-4m, yaj cua tshuab 10-30cm.

(5) Txias thiab ncab tej yam kev mob txawv. Spunbond fibers tau kos siv 16 ℃ huab cua txias nrog lub siab zoo / tsis zoo, thaum lub fuses tau tshuab siv lub rooj zaum kub nrog qhov kub ntawm 200 ℃.

Qhov sib txawv ntawm lub cev muaj zog

Spunbond ntaubmuaj ntau dua kev tawg lub zog thiab elongation dua li meltblown fabrics, ua rau cov nqi qis dua. Tab sis txhais tes xav thiab fiber mesh uniformity tsis zoo.

Meltblown ntaub yog fluffy thiab mos, nrog kev pom kev ua haujlwm siab, tsis muaj zog, thiab kev ua haujlwm zoo. Tab sis tsis muaj zog thiab hnav tsis zoo.

Kev sib piv cov yam ntxwv ntawm cov txheej txheem

Ib qho ntawm cov yam ntxwv ntawm cov ntaub nplaum uas tsis yog-woven yog tias cov fiber ntau fineness yog me me, feem ntau tsawg dua 10um (micrometers), feem ntau fibers muaj fineness ntawm 1-4um. Lub zog sib txawv ntawm tag nrho cov kab spinning los ntawm lub nozzle ntawm lub meltblown tuag rau lub tshuab txais tsis tuaj yeem tswj qhov sib npaug (xws li lub zog stretching quab yuam hloov ntawm high-temperature thiab high-speed airflow, ceev thiab kub ntawm cua txias, thiab lwm yam), uas ua rau sib txawv fineness ntawm meltblown fibers.

Lub uniformity ntawm fiber ntau nyob rau hauv spunbond nonwoven fabric web yog zoo dua li cov meltblown fibers, vim hais tias nyob rau hauv cov txheej txheem spunbond, cov txheej txheem spinning yog khov kho-lub xeev, thiab stretching thiab txias tej yam kev mob fluctuate ntau.

Kev sib piv ntawm Crystallization thiab Orientation Degree

Lub crystallinity thiab orientation ntawm yaj cua tshuab fibers yog me dua cov spunbond fibers. Yog li ntawd, lub zog ntawm yaj cua tshuab fibers tsis zoo, thiab lub zog ntawm lub web fibers kuj tsis zoo. Vim tias qhov tsis zoo fiber ntau ntawm cov yaj tshuab tsis woven fabrics, qhov tseeb daim ntawv thov ntawm yaj cua tshuab nonwoven fabrics tsuas yog nyob ntawm tus yam ntxwv ntawm lawv cov ultrafine fibers.

Kev sib piv ntawm melt spun fibers thiab spunbond fibers

A, Fiber ntev - spunbond yog ib tug ntev fiber, meltblown yog ib tug luv fiber

B, Fiber zog - spunbond fiber ntau zog> meltblown fiber ntau zog

Fiber fineness - Meltblown fibers yog finer tshaj spunbond fibers

Txawv daim ntawv thov scenarios

Daim ntawv thov teb ntawm spunbond thiab meltblown kuj txawv. Feem ntau, cov ntaub spunbond feem ntau yog siv rau cov khoom siv tu cev thiab kev lag luam, xws li cov ntaub so ntswg huv, lub ntsej muag, cov ntaub lim dej, thiab lwm yam. Meltblown fabrics yog siv rau hauv cov khoom siv kho mob, qhov ncauj qhov ntswg thiab lwm yam. Vim lawv cov txiv hmab txiv ntoo thiab tuab, meltblown ntaub muaj cov teebmeem kev lim dej zoo dua thiab tuaj yeem lim cov nplais uas lim zoo dua.

Tus nqi sib piv ntawm spunbond thiab meltblown

Muaj qhov sib txawv tseem ceeb hauv cov nqi tsim khoom ntawm spunbond thiab meltblown. Tus nqi tsim khoom ntawm spunbond kuj yog qhov siab vim nws xav tau ntau lub zog thiab cov khoom siv. Nyob rau tib lub sijhawm, vim yog cov fibers tuab, cov ntaub uas tsim los ntawm spunbond muaj qhov nyuaj ntawm tes thiab nyuaj rau kev lees paub los ntawm kev ua lag luam.

Ntawm qhov tsis sib xws, tus nqi tsim khoom ntawm meltblown yog qhov tsawg vim tias nws tuaj yeem txo cov nqi los ntawm kev tsim khoom loj thiab automation. Nyob rau tib lub sijhawm, vim cov fibers zoo dua, cov ntaub meltblown muaj qhov softer thiab zoo tactile xav, uas tuaj yeem ua tau raws li kev xav tau ntawm kev lag luam.

【Cov Lus Qhia】

Meltblown nonwoven ntaub thiabspunbond nonwoven ntaubyog ob hom nonwoven cov ntaub ntawv uas sib txawv manufacturing txheej txheem 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.

Dongguan Liansheng Nonwoven Technology Co., Ltd.tau tsim nyob rau hauv lub Tsib Hlis 2020. Nws yog ib tug loj-scale non-woven npuag ntau lawm enterprise integrating kev tshawb fawb thiab kev loj hlob, ntau lawm, thiab muag khoom. Nws tuaj yeem tsim ntau yam xim ntawm PP spunbond non-woven fabrics nrog qhov dav ntawm tsawg dua 3.2 meters los ntawm 9 grams mus rau 300 grams.