Nekuvandudzwa kunoenderera mberi kwemararamiro, mipimo yakasimba yevanhu haina kuganhurirwa kuzvokudya pachazvo. Zvinodiwa pakuputirwa kwayo zviri kuwedzerawo. Kurongedza kwechikafu kwave kuita zvishoma nezvishoma chikamu chechigadzirwa kubva kune yayo subsidiary chimiro. Izvo zvakakosha kuchengetedza chigadzirwa, Izvo zvakakosha kufambisa kuchengetedza nekufambisa, kukurudzira kutengesa, uye kuwedzera kukosha kwechigadzirwa.
Kudhindwa kwechikafu flexible packaging materials
① Nzira dzekudhindaChikafu chinoshanduka chiputiriso kudhindainonyanya kuenderana negravure uye flexographic printing, inoteverwa neflexographic printing machines kudhinda mafirimu epurasitiki (flexographic printing machines anonyanya kugadzira mitsara yekugadzira nemichina yakaoma lamination), asi nekudhinda, kana ichienzaniswa nekudhindwa kwegravure uye flexographic printing inoshandiswa mukudhinda kwezvinhu, kune misiyano yakawanda. Semuenzaniso: Flexible packaging printing inodhindwa pamusoro peiyo roll-shaped substrate. Kana iri firimu rakajeka, muenzaniso unogona kuonekwa kubva kumashure. Dzimwe nguva zvakakosha kuwedzera jira repende jena kana kushandisa nzira yekudhinda yemukati.
② Tsanangudzo yekudhinda kumashure Kudhinda kumashure kunoreva nzira yakakosha yekudhinda iyo inoshandisa ndiro yekutsikirira ine reverse mufananidzo uye zvinyorwa kuendesa ingi mukati meyakajeka inodhinda zvinhu, kuitira kuti mufananidzo wakanaka uye zvinyorwa zviratidzwe kumberi. yechinhu chakadhindwa.
③ Zvakanakira zveLiyin
Kuenzaniswa nekudhindwa kwepamusoro, lining yakadhindwa nyaya ine zvakanakira kuve inopenya uye yakanaka, ine mavara / isingapere, hunyoro-uchapupu uye kusapfeka-kusapfeka. Mushure mokunge mutsara wekudhinda wawedzerwa, inki layer inoiswa pakati pezvikamu zviviri zvefirimu, izvo zvisingazosvibisa zvinhu zvakaputirwa.
Kusanganiswa kwechikafu flexible packaging materials
① Kunyorova kusanganisa nzira: Pfekedza dhizaini inonyungudika nemvura pamusoro pechigadziko (yepurasitiki firimu, aluminium foil), isanganise nezvimwe zvinhu (bepa, cellophane) kuburikidza nekumanikidza roller, wozoiomesa mune inopisa. kuomesa mugero Iva musanganiswa membrane. Iyi nzira yakakodzera kurongedza chikafu chakaoma.
② Dry lamination method: tanga waisa solvent-based adhesive zvakaenzana pa substrate, wozoitumira kune inopisa kuomesa tunnel kuti ibudise zvizere solvent, uye pakarepo laminate neimwe firimu. Semuenzaniso, oriented polypropylene film (OPP) inowanzo sanganiswa nezvimwe zvinhu uchishandisa yakaoma lamination process mushure mekudhindwa kwemukati. Maumbirwo akajairika ndeaya: biaxially oriented polypropylene film (BOPP, 12 μm), aluminium foil (AIU, 9 μm) uye unidirectional Yakatambanudzwa polypropylene firimu (CPP, 70 μm). Maitiro acho ndeekushandisa roller yekuputira mudziyo kuti upfeke zvakaenzana solvent-based "dry adhesive poda" pachigadziko, wozoitumira kune inopisa kuomesa mugero kuti ibudise zvizere solvent usati wairamisa neimwe firimu uchishandisa laminating roller.
③ Iyo extrusion musanganiswa nzira inobvisa keteni-yakaita seyakanyungudutswa polyethylene kubva pakatsemuka cheT mold, yoidzvanya nepakati pepinch roller, uye yoinyura pabepa kana firimu rekunamira polyethylene, kana kupa mamwe mafirimu kubva pachipiri mapepa ekudyisa chikamu. Shandisa polyethylene seyadhi yekunamatira yekubatanidza.
④ Hot-melt composite nzira: Polyethylene-acrylate copolymer, ethylene acid-ethylene copolymer, uye parafini wakisi zvinopisa uye zvinonyungudutswa pamwe chete, zvozoputirwa pa substrate, pakarepo zvakasanganiswa nezvimwe zvinoumbwa zvinhu uye zvotonhodzwa.
⑤Multi-layer extrusion compounding nzira
Akasiyana-siyana epurasitiki resin ane akasiyana zvivakwa anopfuudzwa kuburikidza akawanda extruder uye extruded mu mold kuita firimu. Iyi nzira haidi zvinonamira kana organic zvinonyungudutsa pakati pezvikamu, uye iyo firimu haina kunhuwa kana inokuvadza sont kupinda, ichiita kuti ive yakakodzera kurongedza chikafu nehurefu hwehupenyu hwesherufu. Semuenzaniso, iyo yakajairwa chimiro cheLLDPE/PP/LLDPE ine kujeka kwakanaka uye ukobvu kazhinji 50-60μm. Kana iine hurefu hwesherufu. Anopfuura mashanu akaturikidzana epamusoro-barriers co-extruded mafirimu anodiwa, uye iyo yepakati layer inogadzirwa nepamusoro-barriers zvinhu PA, PET uye EVOH.
Nguva yekutumira: Mar-13-2024
