Multilayer coextrusion firimu
Nezvekusuma mafekitori, makotesheni, maMOQ, kuendesa, samples dzemahara, dhizaini yekugadzira, mazwi ekubhadhara, mushure mekutengesa masevhisi nezvimwe. Ndokumbira kutiza FAQ kuti uve nemhinduro dzese dzaunoda kuziva.
Dzvanya FAQsQingdao Advanmatch Packaging's multi-layer co-extruded composite firimu rinowanzo kupatsanurwa kuitabase layer, functional layer uye adhesive layer maererano nebasa rechikamu chega chega chemufirimu pasinei nenhamba yezvikamu.
Base layer: Kazhinji, iyo yemukati nekunze yakaturikidzana yefirimu inoumbwa iyo inofanirwa kunge iine yakanaka yemuviri uye yemagetsi zvivakwa, kuumba uye kugadzirisa zvivakwa uye thermal sealing layer.Iyo ine yakanaka kupisa-kuvharisa kuita uye kupisa welding performance ine mutengo wakaderera.Zvichakadaro, zvakare ine yakanaka tsigiro uye yekuchengeta mhedzisiro pane inoshanda layer uye chikamu chepamusoro mune inoumbwa membrane iyo inotaridza kuomarara kwese kweiyo composite membrane.Iyo yekutanga zvinhu ndeye PE, PP, EVA, PET uye PS.
Functional layer:Iyo coextrusion inoshanda layer yekurongedza firimu inonyanya kuvharira layer, iyo inowanzova yepakati yeakawanda-layer composite firimu.Inonyanya kushandisa zvipingamupinyi zvakadai seEVOH, PVDC, PVA, PA, PET, nezvimwewo. Pakati pazvo, zvinhu zvinonyanya kushandiswa zvakakwirira zvipingamupinyi ndeEVOH nePVDC, uye PA nePET zvakajairika zvine zvipingamupinyi zvakafanana, ndezvezvinhu zvepakati zvinodzivisa. .
EVOH
Ethylene-vinyl doro copolymer imhando yepolymer zvinhu zvinosanganisa kufambiswa kwe ethylene polymer uye gasi barriers ethylene doro polymer.Inonyatsojeka uye ine gloss yakanaka.EVOH ine yakanakisa chipingamupinyi kurwisa gasi neoiri.Simba rayo remuchina, kuchinjika, kupfeka kuramba, kutonhora kwekudzivirira uye simba repamusoro zvakanakisa uye ine yakanakisa kugadzirisa mashandiro.Iyo inovharira pfuma yeEVOH zvinoenderana nezviri mukati ethylene.Zvigadzirwa zvakazara neEVOH zvinhu zvinosanganisira condiments, zvigadzirwa zvemukaka, zvigadzirwa zvenyama, zvigadzirwa zvechizi, nezvimwe.
PVDC
Polyvinylidene chloride ipolymer yevinylidene chloride (1,1-dichlorethylene).Tembiricha yekuora yehomopolymer polyvinylidene chloride yakaderera pane yekunyungudika kwayo, saka inonetsa kunyungudika.Naizvozvo, PVDC sechinhu chekurongedza ndeye copolymer yevinylidene chloride uye vinyl chloride ine yakanaka gasi kusimba, kushorwa kwekudzivirira, kudhinda kwakanaka uye kupisa-kuvharisa maitiro.Pakutanga, yainyanya kushandiswa kurongedza zvechiuto.Asi yakatanga kushandiswa sefirimu rekuchengetedza chikafu muma1950s.Kunyanya kukurumidza-kuomesa nechando uye kuchengetedza kutsva kwakagadzirwa kwakakura nekukasira kwehunyanzvi hwemazuva ano hwekurongedza uye kukurumidza kwehupenyu hwevanhu vemazuvano, shanduko yezvibiki zvemicrowave uye kuwedzera kwesherufu yehupenyu hwekudya nemishonga izvo zvakaita kuti kushandiswa kwePVDC kwakakurumbira.PVDC inogona kugadzirwa kuita firimu rakatetepa zvakanyanya, nekudaro ichidzikisa huwandu hwezvigadzirwa uye mutengo wekurongedza, Ichiripo nhasi.
Adhesive layer
Nekuda kwekusabatana kwakashata kweimwe base resins uye inoshanda layer resin, zvinodikanwa kuisa mamwe anonamira akaturikidzana pakati pematanho maviri aya kuti aite basa reglue, kuitira kuumba "yakabatanidzwa" firimu remubatanidzwa.Iyo inonamira layer inoshandisa adhesive resin, inowanzoshandiswa ndeye maleic anhydride yakabatanidzwa polyolefin uye ethylene-vinyl acetate copolymer (EVA).
Multi-layer co-extruded firimu maitiro:
1. High barrier property: Kushandiswa kwe multilayer polymer panzvimbo ye monolayer polymerization kunogona kuvandudza zvakanyanya chipingamupinyi pfuma yefirimu uye kuwana yakakwirira chipingamupinyi mhedzisiro yeokisijeni, mvura, carbon dioxide, kunhuwa, etc. Kunyanya kana EVOH nePVDC zvasarudzwa se zvipingamupinyi zvinhu, kutapurirana kweokisijeni yavo uye kutapurirana kwemhute yemvura zviri pachena kuti zvakaderera.
2. Basa rakasimba: Nekuda kwekusarudzwa kwakakura kwemafirimu akawanda mukushandiswa kwezvinhu, zvakasiyana-siyana zveresin zvinogona kusarudzwa zvichienderana nekushandiswa kwezvinhu zvinobatsira zviri kuratidza zvizere mabasa emazinga akasiyana, kuitira kuwedzera kushanda kweco. -extrusion firimu, senge mafuta kuramba, hunyoro kuramba, tembiricha yekubika kubika, yakaderera tembiricha inotonhora kutonhora kuramba.Inogona kushandiswa kurongedza vacuum, sterile kurongedza uye inflatable kurongedza.
3. Mutengo wakaderera: Kuenzaniswa negirazi kurongedza, aluminium foil packaging uye mamwe mapurasitiki epurasitiki anokwanisa kuwana zvakafanana zvipingamupinyi zvinoita.Panguva imwecheteyo, co-extruded firimu ine zvakanakira zvakawanda mumutengo.Semuyenzaniso, kuti ive neyakafanana chipingamupinyi mhedzisiro, manomwe-layer co-extruded firimu rine mabhenefiti makuru mumutengo pane mashanu-layer co-extruded firimu.Nekuda kwekugadzirwa kwayo kuri nyore, mutengo wezvigadzirwa zvemufirimu unogadzirwa unogona kuderedzwa ne10-20% kana uchienzaniswa nemutengo weakaoma composite firimu nemamwe mafirimu akaumbwa.
4. Flexible dhizaini dhizaini: tora dhizaini dhizaini kuti isangane nemhando yekusimbisa zvinodiwa zvezvigadzirwa zvakasiyana.
