Chani Is “Yopanda nsalu" ?
Ngati mwagwiritsa ntchito chigoba cha nkhope, chopukutira chonyowa, kapena thumba logulira zinthu, mwakhudzaponsalu yopanda ulusiKoma apa pali kupotoka: kulibe kupindika, kuluka, ulusi, komanso kulukana. Nsalu yachikhalidwe imafuna kupota ndi kulukana—masitepe awiri akuluakulu. Yosalukana imadutsa zonse ziwiri. Ulusi (kapena pulasitiki yosungunuka) umayikidwa mwachindunji mu ukonde, kenako umalumikizidwa pamodzi ndi kutentha, kukangana, kapena zomatira za mankhwala. Mu 2022, China idapanga matani 8.29 miliyoni—oposa gawo limodzi mwa magawo atatu a zonse padziko lonse lapansi. Ndi gawo lomwe likukula mwachangu kwambiri pa nsalu, makamaka chifukwa silikuvutitsidwa ndi "nsalu" konse.
Meltblown: Chosefera Chapamwamba
KusungunukaZimayamba ndi tinthu ta polypropylene, tomwe timasungunuka ndikutuluka kudzera m'ma nozzles ang'onoang'ono. Mpweya wotentha wa 200‑300°C umatambasula kusungunuka kukhala microfibers yokhala ndi makulidwe a 1‑5 microns—ena osalala ngati 0.5 microns. (Tsitsi la munthu ndi pafupifupi 70 microns.) Ulusi wopyapyala kwambiri uwu umapanga mazenera okhuthala, ozungulira omwe amakola mabakiteriya, madontho, ndi tinthu tating'onoting'ono. Ichi ndichifukwa chake gawo lapakati la chigoba cha opaleshoni liyenera kusungunuka. Chovuta: limayenda pa 1‑5 m/min yokha, limakhala lofooka, ndipo limawononga $3,500‑5,500 pa tani—mtengo wake ndi kawiri kapena katatu kuposa zinthu zina zopanda ulusi. Chifukwa chake simungachione chokha; nthawi zonse ndi ngwazi yobisika yomwe ili pakati pa zigawo zolimba.
Spunbond: Kavalo Wogwira Ntchito
Spunbond imasungunulanso polima, koma imatulutsa ulusi wopitilira wa maikrofoni 15-35—wokhuthala kwambiri komanso wolimba. Ulusiwo ukatambasulidwa ndi kuyikidwa pa lamba woyenda, umalumikizidwa ndi ma roller otentha. Zotsatira zake: nsalu yolimba, yosang'ambika yomwe imayenda pa liwiro la 50-500 m/mphindi (mpaka 1,000 m/mphindi pa mizere yothamanga kwambiri)—kuthamanga nthawi 100 kuposa kusungunuka. Kuchepetsa liwiro kumeneko kumawononga $1,700-2,800 pa tani. Spunbond ndi chovala chanu cha zakudya, chophimba chaulimi, mipando, ndi zovala zoteteza zakunja. Ndi yotsika mtengo komanso yolimba, koma yolimba komanso yokongola—si chinthu chomwe mungafune kupukuta nacho nkhope yanu.
SMS: Zabwino Pamodzi
Zogulitsa zenizeni nthawi zambiri sizisankha njira imodzi yokha. Zovala zakale za SMS-spunbond/meltblown/spunbond-zimaphatikiza zabwino kwambiri mwa zonse ziwiri. Zovala zachipatala zimagwiritsa ntchito spunbond yakunja kutsekereza zakumwa, meltblown yapakati kuti igwire tinthu tating'onoting'ono, ndi spunbond yamkati kuti ikhale yosangalatsa.chigoba cha opaleshonindi chimodzimodzi: gawo lakunja limachotsa madontho, meltblown imapha mavairasi, ndipo gawo lamkati limayamwa chinyezi. Ngakhale ma wipes ambiri onyowa amaphatikiza gawo lofewa la spunlace ndi maziko olimba a spunbond. Njira imodzi imakhala ndi zofooka; kuphatikiza mwanzeru kumapereka magwiridwe antchito popanda kuwononga ndalama.
Sizonse Zopanda Ulusi Zomwe Zimapangidwa Mofanana
Yopanda nsaluPali paliponse - zophimba nkhope, zopukutira, matumba, zosefera, madiresi—koma anthu ambiri sangasiyanitse meltblown ndi spunbond. Tsopano mukudziwa: mukufuna kusefedwa? Mukufuna meltblown. Mukufuna mphamvu komanso mtengo wotsika? Spunbond ndiye yankho lanu. Ndipo ngati muwona SMS, mukuyang'ana sangweji yopangidwa mwaluso. Dzina lomwelo la "nsalu", magwiridwe antchito osiyana kwambiri—ndi kusiyana kwa mtengo kasanu. Kumvetsetsa njira izi sikungakupangitseni kukhala katswiri wa nsalu, koma kudzakupangitsani kukhala wogula wanzeru.
Nthawi yotumizira: Ogasiti-17-2026
