Qaphela: Umehluko wokuvala izinto zefilimu kanye nezinhlangothi zangaphambili nangemuva

Njengempahla yokupakisha esetshenziswa kabanzi, umehluko wezinto ezibonakalayo nezinhlangothi zangaphambili nangemuva zefilimu yokuvala ibaluleke kakhulu ekuqinisekiseni imiphumela yokupakisha nokuthuthukisa ikhwalithi yomkhiqizo. Lesi sihloko sizokwethula ngokuningiliziwe impahla yefilimu yokuvala uphawu kanye nomehluko phakathi kwezinhlangothi zangaphambili nangemuva.

1. Izinhlobo nezici zokuvala izinto zefilimu

Kunezinhlobo eziningi zezinto zefilimu zokuvala uphawu, okuhlanganisa i-PE, i-PET, i-PP, i-PVC, i-PS ne-aluminium foil. Lezi zinto zinezici zazo futhi zifanele izidingo ezahlukene zokupakisha.

1. Ifilimu yokuvala i-PE (i-polyethylene): inokuguquguquka okuhle nokungafihli, intengo ephansi, esetshenziswa kabanzi ekupakisheni ekudleni, emithini nakwezinye izimboni.

2. Ifilimu yokuvala i-PET (i-polyester): inamandla aphezulu nokumelana nokugqoka, ifanele izikhathi zokupakisha ezidinga amandla aphezulu nokuqina.

3. Ifilimu yokuvala i-PP (i-polypropylene): inokumelana nokushisa okuhle kakhulu nokumelana nomswakama, ifanele ukupakishwa ezindaweni ezishisa kakhulu.

4. Ifilimu yokuvala i-PVC (i-polyvinyl chloride): inokumelana nesimo sezulu esihle nokuzinza kwamakhemikhali, ifanele ukupakishwa okudinga isitoreji sesikhathi eside noma izindawo ezikhethekile.

5. Ifilimu yokuvala i-PS (i-polystyrene): ine-gloss ephezulu ne-aesthetics, ifanele imikhiqizo ephezulu noma ukupakishwa kwesipho.

6. Ifilimu yokuvala i-aluminium foil sealing: inezakhiwo ezinhle kakhulu zokuvimbela kanye nobuhle, ifanele ukupakishwa okudinga izakhiwo zesithiyo eziphezulu noma ubuhle obukhethekile.

2. Umehluko phakathi kwengaphambili nangemuva kwefilimu yokuvala

Ingaphambili nangemuva kwefilimu yokuvala ihlukile ngezinto ezibonakalayo, ukubukeka nokusebenza. Ukuzihlukanisa kahle nokuzisebenzisa ngokunengqondo kubalulekile ekuthuthukiseni umphumela wokupakisha.

1. Umehluko wokubukeka: Ingaphambili nangemuva kwefilimu yokuvala ngokuvamile inomehluko osobala ekubukekeni. Uhlangothi olungaphambili luvamise ukucwebezela, lunobuso obushelelezi futhi obushelelezi, kuyilapho uhlangothi olungemuva lubuthuntu uma kuqhathaniswa, futhi indawo engaphezulu ingase ibonise ukuthungwa okuthile noma ukuhwalala. Lo mehluko ekubukekeni usiza abasebenzisi ukuhlukanisa ngokushesha izinhlangothi zangaphambili nezangemuva uma bezisebenzisa.

2. Umehluko wokusebenza: Ingaphambili nangemuva kwefilimu evalwayo nakho kunokudlalwa okuhlukile. Uhlangothi lwangaphambili ngokuvamile lunomsebenzi omuhle wokunyathelisa nokumelana nokugqoka, futhi kufanelekile ukuphrinta ama-logo, amaphethini, njll, ukuthuthukisa ubuhle nokuqashelwa kokupakishwa. Uhlangothi olungemuva ngokuyinhloko lugxile ekusebenzeni kwayo kokuvala, okudinga ukukwazi ukuhlanganisa ukupakisha ngokuqinile ukuze kuvinjelwe ukungena komoya wangaphandle, umswakama, njll, ukuqinisekisa ukuphepha nokuzinza kokupakisha.

3. Ukusetshenziswa: Uma usebenzisa ifilimu yokuvala, kuyadingeka ukukhetha ngokufanelekile izinhlangothi zangaphambili nangemuva ngokuya ngezidingo zokupakisha. Ngokupakishwa okudinga ukuphrinta amalogo noma amaphethini, uhlangothi olungaphambili kufanele lukhethwe njengohlangothi lokuphrinta; emaphaketheni adinga ukuthuthukisa ukusebenza kokuvala, uhlangothi olungemuva kufanele lukhethwe njengohlangothi olufanelekile.