Njengento yokunyathelisa, ifilimu yepulasitiki yezikhwama zokufaka ukudla inomlando omfushane kakhulu. Inezinzuzo zokukhanya, obala, ukumelana nomswakama, ukumelana komoya-mpilo, ukungangeni komoya, ukuqina nokumelana nokugoqa, indawo ebushelelezi, nokuvikelwa kwempahla, futhi ingakwazi ukukhiqiza kabusha ukuma komkhiqizo. nombala. Ngokuthuthuka kwemboni ye-petrochemical, kunezinhlobo eziningi kakhulu zamafilimu epulasitiki. Amafilimu epulasitiki asetshenziswa kakhulu yi-polyethylene (PE), ifilimu ye-polyester aluminized (VMPET), ifilimu ye-polyester (PET), i-polypropylene (PP), inayiloni, njll.
Izakhiwo zamafilimu epulasitiki ahlukahlukene ahlukile, ubunzima bokuphrinta buhlukile, futhi ukusetshenziswa njengezinto zokupakisha nakho kuhlukile.
Ifilimu ye-Polyethylene iyinto engenambala, enganambitheki, engenaphunga, eshintshashintshayo engenabuthi yokufakwa kwe-thermal insulation, esetshenziswa kakhulu ekwenzeni izikhwama. Kuyinto engasebenzi, ngakho-ke kunzima kakhulu ukuyiphrinta futhi kufanele icutshungulwe ukuze iphrinte kangcono.
Ifilimu ye-Aluminized inazo zombili izici zefilimu yepulasitiki kanye nezici zensimbi. Ingaphezulu lefilimu limbozwe nge-aluminium ukuze livikeleke ekukhanyeni nasemisebeni ye-UV, engagcini nje ukwandisa impilo yeshalofu yokuqukethwe, kodwa futhi yandisa ukukhanya kwefilimu. Ithatha indawo ye-aluminium foil ngokwezinga elithile, futhi inezinzuzo zezindleko eziphansi, ukubukeka okuhle kanye nezakhiwo ezinhle zokuvimbela. Amafilimu e-Aluminized asetshenziswa kakhulu emaphaketheni ayinhlanganisela. Isetshenziswa kakhulu ekufakweni kokudla okomile nokukhukhumele njengamabhisikidi, kanye nokupakishwa kwangaphandle kweminye imithi kanye nezimonyo.
Ifilimu ye-polyester ayinambala futhi isobala, ifaka umswakama, i-air-tight, ithambile, inamandla amakhulu, iphikisana ne-asidi, i-alkali, i-oyela ne-solvent, futhi akesabi ukushisa okuphezulu nokuphansi. Ngemuva kokwelashwa kwe-EDM, inokushesha okuhle kwendawo yokuyinki. Okokufaka kanye nezinto eziyinhlanganisela.
Ifilimu ye-polypropylene ine-gloss and transparency, ukumelana nokushisa, ukumelana ne-asidi ne-alkali, ukumelana ne-solvent, ukumelana nemihuzuko, ukumelana nezinyembezi kanye nokungena kahle kwegesi. Angeke kuvalwe ukushisa ngaphansi kuka-160°C.
Ifilimu yenayiloni inamandla kunefilimu ye-polyethylene, ayinaphunga, ayinabo ubuthi, futhi ayingenwa amabhaktheriya, amafutha, ama-esters, amanzi abilayo kanye nezincibilikisi eziningi. Ivamise ukusetshenziselwa ukupakisha okuthwalayo, ukumelana nemihuzuko kanye nokupakishwa kwe-retort (ukushisa kabusha kokudla) futhi ivumela ukuphrinta ngaphandle kokwelashwa kwendawo.
Izindlela zokuphrinta zamafilimu epulasitiki zifaka ukuphrinta kwe-flexographic, ukuphrinta kwe-gravure nokuphrinta kwesikrini. Oyinki bokuphrinta badinga i-viscosity ephezulu kanye nokunamathela okuqinile, ngakho-ke ama-molecule ayinki anamathela ngokuqinile endaweni eyomile yepulasitiki futhi ahlukaniswa kalula nomoya-mpilo osemoyeni ukuze ome. Ngokuvamile, u-inki wefilimu yepulasitiki ukuze aphrinte i-gravure wakhiwa inhlaka yokwenziwa efana ne-amine eyinhloko kanye ne-solvent ephilayo equkethe utshwala ne-pigment njengezingxenye eziyinhloko, futhi uyinki omile oguquguqukayo kwakheka ngokuputshuza nokusabalalisa okwanele ukuze kwakhe uketshezi lwe-colloidal nge. fluidity enhle. Inezici zokusebenza okuhle kokuphrinta, ukunamathela okuqinile, umbala ogqamile nokomisa okusheshayo. Ifanele ukuphrinta ngesondo lokuphrinta le-concave.
Ngethemba ukuthi lesi sihloko singakusiza futhi sikuvumele ukuthi ufunde kabanzi mayelana nokupakisha.
Isikhathi sokuthumela: Jun-16-2022