Ukukhiqizaubuchwephesheyefilimu enayiloni ihlanganisa i-CPA, IPA ne-BOPA.

Indlela esetshenziswa kakhulu futhi ephumelelayo yi-BOPA (i-biaxially oriented polyamide), inqubo yayo yokukhiqiza inezinhlobo ezimbili: Ubuchwepheshe bokukhiqiza obulandelanayo kanye nendlela yokwelula kanyekanye.

Ukwelula okulandelanayoUbuchwepheshe bokukhiqiza

Ubuchwepheshe bokukhiqiza obulandelanayo bubizwa nangokuthi indlela yezinyathelo ezimbili, okungukuthi, ukwelula ku-TD isiqondiso kuqala, bese kuba ku-MD direction, ukuze ifilimu ibe namandla aphezulu emishini.Kodwa-ke, ngenxa yokulinganiselwa kwemishini kanye nobuchwepheshe bokukhiqiza izinyathelo ezimbili, ifilimu kulula ukuba nomphumela womnsalo, okuholela entweni engalingani efilimini, okungukuthi, isikhundla esiphakathi kwefilimu enkulu emgqeni ofanayo sinempahla engcono. ukusebenza, okungase isetshenziselwe umkhiqizo edingekayo multi-mibala ukuphrinta, uzimele nezichibiyelo futhi retort, kuyilapho ifilimu roll ezinhlangothini ezimbili kufaneleka kakhulu ukuphrinta elula futhi lamination.

Kanye Kanye Ukwelula Ubuchwepheshe

Ubuchwepheshe bokwelula ngesikhathi esisodwa bunwebeka buqonde ku-MD kanye nesiqondiso se-TD ngesikhathi esifanayo esidinga ukwelashwa kwangaphambili ngokugeza kwamanzi ngaphambi kokuzelula.Lobu buchwepheshe bokukhiqiza buyakwazi ukunciphisa "umphumela womnsalo" wefilimu ngezinga elikhulu futhi kuthuthukisa ibhalansi yomkhiqizo, futhi kunciphisa ukumuncwa komswakama wefilimu.Ubuchwepheshe bokwelula ngesikhathi esisodwa buhlanganisa ubuchwepheshe bokwelula be-synchronous kanye nobuchwepheshe be-LISIM.

Ngenxa yokuthi ithrekhi yokwelula ye-mechanical synchronous stretching ihleliwe, isilinganiso sokwelula asikwazi ukulungiswa futhi amandla omshini wemikhiqizo ekhiqiziwe mancane ngokufanele.

Nakuba ubuchwepheshe be-LISIM buwubuchwepheshe obuthuthuke kakhulu bokukhiqiza amafilimu e-BOPA emhlabeni, obunqoba iphutha lethrekhi egxilile yokuvumelanisa eyimishini.Esigabeni sokunwebeka, njengoba i-clamp yeketanga ngayinye ilawulwa injini ehlukile yomugqa, ithrekhi yayo enwebekayo ingalungiswa ngokuzenzakalelayo nangobuhlakani.Imikhiqizo ekhiqizwayo inamandla amakhulu emishini kanye nokulinganisela okuhle, okuhlanganisa izinzuzo kokubili kobuchwepheshe bokukhiqiza obuzinyathelo ezimbili kanye nobuchwepheshe bokwelula be-synchronous.