Ngokuphuculwa okuqhubekayo kwemigangatho yokuphila, imigangatho engqongqo yabantu ayipheleli ekutyeni ngokwazo.Iimfuno zokupakishwa kwayo nazo ziyenyuka.Ukupakishwa kokutya kuye ngokuthe ngcembe kwaba yinxalenye yemveliso ukusuka kwimeko yayo yokuncedisa.Kubalulekile ukukhusela imveliso, Kubaluleke kakhulu ukuququzelela ukugcinwa kunye nokuthutha, ukukhuthaza ukuthengisa, kunye nokunyusa ixabiso lemveliso.
Ukushicilelwa kwezinto zokupakisha eziguquguqukayo zokutya
① Iindlela zoshicilelo Ukutya okuguquguqukayo ushicilelo lokupakisha lusekwe ikakhulu kwigravure kunye noshicilelo oluguquguqukayo, lulandelwa ngoomatshini bokushicilela beflexographic ukuprinta iifilim zeplastiki (oomatshini bokushicilela be-flexographic ubukhulu becala benza imigca yemveliso ngoomatshini bomileyo), kodwa ngokupapasha, xa kuthelekiswa noshicilelo lwegravure ngokubanzi kunye ushicilelo lwe-flexographic olusetyenziswa kushicilelo lwempahla, kukho iiyantlukwano ezininzi.Umzekelo: Ukupakishwa kwe-Flexible ukuprintwa kuprintwa kumphezulu we-substrate emise okwe-roll.Ukuba ifilimu ecacileyo, ipateni ingabonwa ngasemva.Ngamanye amaxesha kuyimfuneko ukongeza umaleko wepeyinti emhlophe okanye usebenzise inkqubo yokushicilela yangaphakathi.
② Inkcazo yenkqubo yoshicilelo ngasemva ibhekiselele kwindlela yoshicilelo ekhethekileyo esebenzisa ipleyiti yoshicilelo enomfanekiso ongasemva kunye nesicatshulwa ukuhambisa i-inki ngaphakathi kwesixhobo soshicilelo esicacileyo, ukuze umfanekiso ofanelekileyo kunye nombhalo uboniswe ngaphambili. yento eprintiweyo.
③ Izinto ezilungileyo zeLiyin
Xa kuthelekiswa noshicilelo olungaphezulu, i-lining printed matter ineengenelo zokuqaqamba nobuhle, zinemibala/engabuniyo, bubungqina bokufuma kunye nokungagugi.Emva kokuba ukuprintwa kwe-lining kudityanisiwe, i-inki layer ifakwe phakathi kweengqimba ezimbini zefilimu, ezingayi kungcolisa izinto ezipakishweyo.
Ukudityaniswa kwezinto zokupakisha eziguquguqukayo
① Indlela yokudibanisa emanzi: Gcoba umaleko wokuncamathelisa okunyibilikayo emanzini kumphezulu wesiseko semathiriyeli (ifilimu yeplastiki, ifoyile yealuminiyam), uyidibanise nezinye izinto (iphepha, i-cellophane) ngerola yoxinzelelo, emva koko uyomise kwindawo eshushu. ukomisa itonela Yiba inwebu edibeneyo.Le ndlela ifanelekile ukupakisha ukutya okomileyo.
② Indlela yokucoca eyomileyo: okokuqala sebenzisa i-adhesive-based adhesive ngokulinganayo kwi-substrate, uze uyithumele kwitonela eshushu yokumisa ukuze ikhuphe ngokupheleleyo i-solvent, kwaye ngoko nangoko i-laminate ngenye ifilimu.Ngokomzekelo, ifilimu ye-polypropylene e-oriented (OPP) ngokuqhelekileyo idityaniswe nezinye izinto zisebenzisa inkqubo yokucoca eyomileyo emva kokuprintwa kwangaphakathi.Izakhiwo eziqhelekileyo zezi: ifilimu ye-polypropylene e-biaxially oriented (BOPP, 12 μm), i-aluminium foil (AIU, 9 μm) kunye nefilimu ye-polypropylene ye-unidirectional (CPP, 70 μm).Inkqubo kukusebenzisa isixhobo sokugquma i-roller ukwambathisa ngokulinganayo i-solvent-based "eyomileyo yokuncamathelisa umgubo" kwisiseko sezinto, kwaye uyithumele kwitonela eshushu yokumisa ukuze ikhuphe ngokupheleleyo i-solvent ngaphambi kokuyilalisa ngomnye umaleko wefilimu usebenzisa i laminating roller.
③ Indlela yokudibanisa i-extrusion ikhupha i-polyethylene etyhidiweyo efana nomkhusane ukusuka kwintanda ye-T mold, iyicinezele kwi-pinch roller, kwaye iyithobe ephepheni okanye ifilimu yokugquma i-polyethylene, okanye ibonelele ezinye iifilimu ezivela kwinxalenye yesibini yokutyisa iphepha.Sebenzisa i-polyethylene njengomaleko wokuncamathela wokudibanisa.
④ Indlela ye-Hot-melt edibeneyo: I-Polyethylene-acrylate copolymer, i-ethylene acid-ethylene copolymer, kunye ne-wax yeparafini ziyafudunyezwa kwaye zinyibilike kunye, emva koko zigqunywe kwi-substrate, ngokukhawuleza zihlanganiswe nezinye izinto ezidibeneyo kwaye zipholile.
⑤Indlela yokudibanisa yomaleko amaninzi
Iintlobo ezahlukeneyo zeerasi zeplastiki ezineempawu ezahlukeneyo zigqithiswa kwii-extruders ezininzi kwaye zigqithiselwe kwi-mold ukwenza ifilimu.Le nkqubo ayifuni i-adhesives okanye i-solvents eziphilayo phakathi kweengqimba, kwaye ifilimu ayinayo ivumba okanye ukungena kwe-solvent enobungozi, okwenza kube yinto efanelekileyo yokupakishwa kokutya kunye nexesha elide leshelufu.Umzekelo, ulwakhiwo jikelele lwe-LLDPE/PP/LLDPE lunokungafihli kakuhle kwaye ubukhulu buyi-50-60μm.Ukuba inobomi obude beshelufu.Ngaphezulu kwemigangatho emihlanu ye-high-barrier co-extruded films iyadingeka, kwaye i-middle layer yenziwe ngezinto ezithintelayo eziphezulu ze-PA, PET kunye ne-EVOH.
Ixesha lokuposa: Mar-13-2024
