Njengemathiriyeli yokushicilela, ifilimu yeplastiki yeengxowa zokupakisha ukutya inembali emfutshane. Ineenzuzo zokukhanya, ukungafihli, ukuxhathisa ukufuma, ukumelana neoksijini, ukungangeni komoya, ukuqina kunye nokumelana nokusonga, umphezulu ogudileyo, kunye nokukhuselwa kwempahla, kwaye inokuvelisa kwakhona imilo yemveliso. kunye nombala. Ngophuhliso lweshishini lepetrochemical, kukho iintlobo ezininzi zeefilimu zeplastiki. Iifilimu zeplastiki ezisetyenziswa ngokuqhelekileyo ziyi-polyethylene (PE), ifilimu ye-polyester aluminized (VMPET), ifilimu ye-polyester (PET), i-polypropylene (PP), inayiloni, njl.
Iipropati zeefilimu zeplastiki ezahlukeneyo zahlukile, ubunzima bokuprinta bukwahluka, kwaye ukusetyenziswa njengezinto zokupakisha kwahlukile.
Ifilimu yePolyethylene yinto engenambala, ayinancasa, ayinavumba, iguquguqukayo engenatyhefu ye-thermal insulation material, esetyenziswa ngokubanzi ekwenzeni ingxowa. Yimathiriyeli engasebenziyo, ngoko kunzima kakhulu ukuyiprinta kwaye kufuneka iqwalaselwe ukuze iprintwe ngcono.
Ifilimu ye-Aluminized ineempawu zombini zefilimu yeplastiki kunye neempawu zetsimbi. Umphezulu wefilimu ufakwe nge-aluminium ukukhusela ukukhanya kunye nemitha ye-UV, engagcini nje ukwandisa ubomi beshelufu yomxholo, kodwa ikwandisa ukukhanya kwefilimu. Ithatha indawo yefoyile ye-aluminium ukuya kumlinganiselo othile, kwaye ineenzuzo zeendleko eziphantsi, inkangeleko entle kunye neempawu ezintle zomqobo. Iifilimu ze-Aluminized zisetyenziswa ngokubanzi kwipakethe edibeneyo. Isetyenziswa kakhulu ekupakishweni kokutya okomileyo nokukhukhumeleyo okufana neebhiskithi, kunye nokupakishwa kwangaphandle kwamanye amayeza kunye nezithambiso.
Ifilimu ye-polyester ayinambala kwaye ibonakala, i-umswakama-ubungqina, i-air-tight, ithambile, inamandla amakhulu, iphikisana ne-asidi, i-alkali, i-oyile kunye ne-solvent, kwaye ayoyiki ukushisa okuphezulu kunye nokuphantsi. Emva konyango lwe-EDM, inokukhawuleza kobuso obuhle kwi-inki. Ukupakisha kunye nezixhobo ezidibeneyo.
Ifilimu yePolypropylene ine-gloss kunye nokungafihli, ukumelana nobushushu, ukuxhathisa kwe-asidi kunye ne-alkali, ukuxhathisa kwe-solvent, ukuxhathisa kwe-abrasion, ukuxhathisa ukukrazula kunye nokungena kakuhle kwegesi. Ayinakuvalwa bubushushu obungaphantsi kwe-160°C.
Ifilimu yeNyiloni yomelele kunefilimu ye-polyethylene, ayinavumba, ayinayo ityhefu, kwaye ayinyangeki kwiibhaktheriya, i-oyile, i-esters, amanzi abilayo kunye neninzi ye-solvents. Ngokuqhelekileyo isetyenziselwa ukuthwala umthwalo, ukupakishwa kwe-abrasion-resistant kunye nokupakishwa kwe-retort (ukutya ngokutsha) kwaye ivumela ukuprinta ngaphandle konyango olungaphezulu.
Iindlela zokuprinta iifilimu zeplastiki ziquka ukuprintwa kwe-flexographic, ukuprintwa kwegravure kunye nokuprintwa kwesikrini. Iinki zokuprinta zifuna i-viscosity ephezulu kunye nokubambelela ngokuqinileyo, ngoko ke iimolekyuli zeinki zibambelela ngokuqinileyo kwindawo eyomileyo yeplastiki kwaye zihlulwe ngokulula kwi-oksijini esemoyeni ukuze zome. Ngokubanzi, i-inki yefilimu yeplastiki yoshicilelo lwegravure yenziwe ngentlaka yokwenziwa efana ne-amine yokuqala kunye ne-organic solvent equlethe utywala kunye ne-pigment njengezona nxalenye ziphambili, kwaye i-inki eguquguqukayo eyomileyo yenziwa ngokucolwa okwaneleyo kunye nokusasazwa ukwenza ulwelo lwe-colloidal kunye fluidity elungileyo. Ineempawu zokusebenza kakuhle koshicilelo, ukunamathela okuqinileyo, umbala oqaqambileyo kunye nokomisa ngokukhawuleza. Ilungele ukuprintwa ngevili lokuprinta leconcave.
Ndiyathemba ukuba eli nqaku linokukunceda kwaye likuvumele ukuba ufunde ngakumbi malunga nokupakishwa.
Ixesha lokuposa: Jun-16-2022