Polypropylene spunbond tsis-woven npuag yog ua los ntawm polypropylene. Nws yog polymerized rau hauv lub vev xaib los ntawm kev kub siab nqus, thiab tom qab ntawd sib txuas rau hauv cov ntaub los ntawm kub dov. Cov txheej txheem ntau lawm yog yooj yim, thiab cov khoom tsim tawm yog loj. Raws li nws tsis muaj mob rau tib neeg lub cev, nws yog dav siv nyob rau hauv ntau yam xws li cov ntaub ntawv huv, khoom tu cev, ntim khoom.
Nta thiab zoo
Qhov laj thawj tseem ceeb rau txoj kev loj hlob sai ntawm spunbond txoj kev yog qhov ntau lawm siv hluavtaws polymers ua raw cov ntaub ntawv. Melted polymers yog tsim rau hauv cov txheej txheem txuas mus ntxiv hauv cov txheej txheem polymer spinning. Tom qab tig, lawv tau sib txuas ncaj qha los ua lub vev xaib.
Cov xov tsis-woven muaj cov qauv tsim khoom siv yooj yim heev thiab ceev ceev. Piv nrog qhuav-nteg tsis-woven npuag ua cov thev naus laus zis, zoo li kev sib hloov pauv hauv nruab nrab xws li fiber ntau crimping, txiav, ntim, thauj mus los, sib tov, thiab daim npav yog tshem tawm. Cov txiaj ntsig zoo tshaj plaws ntawm cov huab hwm coj ntau yog txo tus nqi ntawm cov khoom lag luam spunbond, thiab tswj cov kev ua haujlwm zoo, thiab uas ua rau nws muaj kev sib tw hauv khw. Lawv yog dav siv hauv tshuab luam ntawv, ntawv thiab zaj duab xis lag luam yog cov khoom pov tseg thiab kav ntev. Thib ob, vim hais tias spunbond non-woven fabrics noj polypropylene (PP) yog cov khoom lag luam tseem ceeb hauv cov khoom loj, nws muaj ntau yam zoo ntawm nqe, ua thiab tus nqi tsim khoom. Nyob rau hauv rov qab, cov zoo no kuj tau txhawb nqa txoj kev loj hlob tsis tu ncua ntawm spunbond tsis-woven npuag kev lag luam. Tsis tas li ntawd, spunbond tsis-woven cov khoom muaj lub cev zoo heev, thiab lawv lub zog tensile, elongation thaum tawg, rhuav lub zog thiab lwm qhov ntsuas yog qhov zoo dua li qhuav, ntub, thiab yaj-blown tsis-woven ntaub, tshwj xeeb tshaj yog nyob rau hauv xyoo tas los. Kev tsim kho sai hauv cov kab ntau lawm, cov cuab yeej thev naus laus zis thiab khoom siv, thiab kev tsim khoom lag luam tau nthuav dav cov ntaub ntawv thov ntawm spunbond tsis-cov ntaub. Qhov loj tshaj qhov sib txawv ntawm cov txheej txheem tsim tawm spunbond thiab cov tshuaj fiber fiber ntau yog kev siv cov pa cua thiab kev ua lub vev xaib ncaj qha. Yog li ntawd, kev kos duab ntawm spunbond txoj kev tau dhau los ua cov txheej txheem tseem ceeb ntawm cov khoom lag luam. Cov qauv duab kos duab dhau los siv kev teeb tsa txhua yam, uas ua rau fiber ntau monofilament Ntxhib, tsis sib kis. Xyoo tsis ntev los no, cov cuab yeej tsim tawm hauv ntiaj teb spunbond tau hloov kho nrog kev siv tshuab huab cua. Muaj peb yam sib txawv ntawm cov kab ntau lawm spunbond, uas yog cov tubular kos duab, kos kom dav, thiab kos kom pom dav. Spunbond tsis-woven npuag tshuab yog txhawm rau txhim kho lub peev xwm ntawm cov kab ntau lawm thiab daws cov teeb meem ntawm cov xov uas tsis-woven cov khaub ncaws tsis sib thooj, npog, ntxhib tes xav, thiab lwm yam, txhawm rau txhim kho lub zog, muag muag, khaub ncaws tsis zoo thiab xis nyob ntawm spunbonded tsis xov ntaub, Hygroscopicity thiab lwm yam khoom. Cov nplua densified spunbond tsis-woven npuag tuaj yeem txhim kho qhov muag muag thiab kev nplij siab ntawm spunbonded tsis-ntaub npuag. Txawm li cas los xij, qhov thinning ntawm spunbond txoj kev muaj cov cuab yeej txwv. Piv txwv li, qhov thinning ntawm spunbond tuaj yeem nce tus naj npawb ntawm cov xov tooj ib cheeb tsam ntawm cov spunbonded tsis-cov ntaub npuag, thiab" sib txuas kis" nruab nrab ntawm cov fibers thiab cov fibers yuav nce. Cov khoom yuav dhau los ua ntau yam thiab kev tiv thaiv yuav nce ntxiv.
