zinthu za spunbond ndi chiyani

Pali mitundu yambiri ya nsalu zopanda nsalu, ndipo spunbond yopanda nsalu ndi imodzi mwa izo. Zida zazikulu za nsalu za spunbond zopanda nsalu ndi poliyesitala ndi polypropylene, zokhala ndi mphamvu zambiri komanso kukana bwino kwa kutentha. Pansipa, chiwonetsero cha nsalu zosalukidwa chidzakudziwitsani kuti nsalu za spunbond zosalukidwa ndi chiyani? spunbond ndi chiyani? Tiyeni tiwone limodzi.

Ndi chiyaninjira ya spunbond

Chifukwa chofunikira chakukula kwake mwachangu ndikuti imagwiritsa ntchito ma polima opangira ngati zida. Njirayi imagwiritsa ntchito mfundo ya ulusi wamankhwala wopota kuti ulusike mosalekeza panthawi ya kupota kwa polima, komwe kumapopera pa intaneti ndikumangirira mwachindunji kupanga nsalu zosalukidwa. Njira yopangira ndi yosavuta komanso yachangu. Poyerekeza ndi teknoloji yowuma yopanda nsalu yopangira nsalu, imachotsa njira zowonongeka zapakatikati monga fiber curling, kudula, kulongedza, zoyendetsa, kusakaniza, ndi kusakaniza Chotsatira chachikulu cha kupanga misala ndi kupanga mankhwala a spunbond kukhala ndi mphamvu zambiri, zotsika mtengo, ndi khalidwe lokhazikika. Kutambasula kwa njira ya spunbond ndiye vuto lalikulu laukadaulo lopeza ulusi wabwino wokana ndi zida zopanda mphamvu zambiri, ndipo pakadali pano njira yayikulu ndiukadaulo wotambasula mpweya. Pofuna kupititsa patsogolo kayendedwe ka mpweya wa ulusi wa spunbond, kutuluka kwapamwamba kwa dzenje limodzi lopota, mapangidwe a mabowo a spinneret apamwamba kwambiri, ndi zotsatira zake pakupanga ndi khalidwe la zipangizo zomwe sizinalukidwe, tikuphunzira kupanga njira yopangira makina osakanikirana ndi kuthamanga kwabwino ndi kupanikizika koipa, komanso zotsatira za kupota kwa electrostatic pa kupota liwiro, ukonde ndi m'lifupi, ukonde wabwino. Uwu ndi mtundu wapadera wa zida za spunbond zopangidwira mafakitale, Chimodzi mwazinthu zofunika kwambiri pazida ziwiri za spunbond.

zinthu za spunbond ndi chiyani

The zopangira kwaspunbond nsalu zopanda nsalumakamaka ulusi wa cellulose ndi ulusi wopangidwa, womwe umapangidwa kudzera munjira ya spunbond. Imamva bwino m'manja, imapumira, komanso kukana kuvala, ndipo imagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana. Njira yopangira nsalu zosalukidwa ndi spunbond ndizosavuta, zotsika mtengo, ndipo zili ndi chiyembekezo chamsika wamsika. Tikuyembekeza kuti padzakhala zatsopano ndi chitukuko m'tsogolomu, kotero kuti nsalu zopanda nsalu za spunbond zitha kugwira ntchito yaikulu m'madera osiyanasiyana.

Ma cellulose fiber

Ulusi wa cellulose ndi chimodzi mwazinthu zofunika kwambiri popangira nsalu za spunbond zosalukidwa. Cellulose ndi mankhwala achilengedwe omwe amapezeka kwambiri m'makoma a cell cell. Ulusi wambiri wa zomera, monga thonje, nsalu, hemp, ndi zina zotero, uli ndi cellulose wochuluka. Zomerazi zimapatsidwa mankhwala osiyanasiyana, monga kusenda, kuchotsa mafuta, ndi kuwiritsa, kuti achotse cellulose muzomera. Kenako, kudzera munjira ya spunbond, ulusi wa cellulose amatambasulidwa ndikumangika kuti apange nsalu yopanda spunbond. Ulusi wa cellulose umakhala wofewa komanso wopuma bwino, zomwe zimapangitsa kuti nsalu za spunbond zosalukidwa zikhale ndi manja abwino komanso kupuma bwino.

Synthetic ulusi

Ulusi wopangidwa ndi zinthu zina zomwe zimagwiritsidwa ntchito kwambiri popanga nsalu za spunbond zosalukidwa. Ulusi wopangidwa ndi ulusi wopangidwa ndi kaphatikizidwe kochita kupanga kapena kusinthidwa kwa mankhwala, monga ulusi wa poliyesitala, ulusi wa nayiloni, ndi zina zotero. Ulusi wopangidwa uli ndi katundu wabwino kwambiri wakuthupi ndi kukhazikika kwa mankhwala, ndipo makhalidwe a ulusi amatha kusinthidwa ngati pakufunika. Popanga nsalu zosalukidwa za spunbond, ulusi wopangidwa nthawi zambiri umasakanizidwa ndi ulusi wa cellulose kuti ukhale wolimba komanso wosamva kukana kwa nsalu zopanda nsalu za spunbond.

Kodi nsalu ya spunbond yosalukidwa ndi chiyani?

Nsalu yopangidwa ndi spunbonded yopanda nsalu, yopangidwa makamaka ndi poliyesitala ndi polypropylene, imakhala ndi mphamvu zambiri komanso kukana kutentha kwambiri. Nsalu zosalukidwa zosalukidwa zimatuluka ndi kutambasula ma polima kuti apange ulusi wosalekeza, womwe umayikidwa mu ukonde. Kenako ukonde umadzimangiriza pawokha, womangiriridwa ndi thermally, womangidwa ndi mankhwala, kapena kumangirizidwa mwamakina kuti usanduke nsalu yosalukidwa.

Kusankha zipangizo

Zopangira zomwe zimagwiritsidwa ntchito pamzere wopanga zimagwirizana ndi momwe msika ulili komanso cholinga cha chinthucho. Popanga malonda otsika pamsika, chifukwa cha zofunikira zochepa za zipangizo zopangira, pofuna kuchepetsa ndalama zopangira, zopangira zotsika zimatha kusankhidwa. Chosiyana ndi chowonanso.

Mizere yambiri yopanga ma spunbond nonwoven imagwiritsa ntchito tchipisi ta granular polypropylene (PP) ngati zopangira, koma palinso mizere yaying'ono yopangira yomwe imagwiritsa ntchito zida za PP zaufa, ndi mizere ina yopangira yomwe imagwiritsa ntchito zida zobwezerezedwanso za polypropylene. Kuphatikiza pazida zopangira granular, mizere yosungunula yowombedwa yopanda nsalu imathanso kugwiritsa ntchito zinthu zozungulira.

Mtengo wa slicing umagwirizana mwachindunji ndi kukula kwa mtengo wake wa MFI, makamaka kukulira kwa MFl mtengo, ndikukwera mtengo. Chifukwa chake, ndikofunikira kuganizira mozama momwe zinthu zimapangidwira, mawonekedwe a zida, kagwiritsidwe ntchito kazinthu, mtengo wogulitsa, mtengo wopanga, ndi zinthu zina kuti musankhe zopangira zomwe zingagwiritsidwe ntchito.