Litaba - Joang ho khetha thepa ea mekotla ea ho paka?

1. Mokotla oa ho paka o khutlang

Litlhoko tsa ho paka: E sebelisoa bakeng sa ho paka nama, likhoho, joalo-joalo, sephutheloana se hlokeha ho ba le thepa e ntle ea thibelo, se hanyetsane le masoba a masapo, 'me se hloekisoe tlas'a maemo a ho pheha ntle le ho robeha, ho phunyeha, ho fokotseha, le ho hloka monko.

Sebopeho sa moralo:Mofuta o bonaletsang: BOPA/CPP, PET/CPP, PET/BOPA/CPP, BOPA/PVDC/CPPPET/PVDC/CPP, GL-PET/BOPA/CPP Mofuta oa foil oa Aluminium: PET/AL/CPP, PA/AL/ CPPPET/ PA/AL/CPP,PET/AL/PA/CPP

Lebaka la moralo: PET: ho hanyetsa mocheso o phahameng, ho tiea hantle, ho hatisoa hantle le matla a phahameng. PA: Ho hanyetsa mocheso o phahameng, matla a phahameng, ho feto-fetoha ha maemo, thepa e ntle ea thibelo, le ho hanyetsa ho phunya. AL: Thepa e ntle ka ho fetisisa ea thibelo, ho hanyetsa mocheso o phahameng. CPP: Ke boemo ba ho pheha ka mocheso o phahameng o nang le mocheso o motle oa ho koala, o se nang chefo le o sa nkheng. PVDC: thepa e thibelang mocheso o phahameng. GL-PET: Filimi e entsoeng ka mouoane ka ceramic, e nang le thepa e ntle ea litšitiso ebile e pepesehetse li-microwave. Khetha sebopeho se nepahetseng bakeng sa lihlahisoa tse itseng. Mekotla e pepenene e sebelisoa haholo ho pheha, 'me mekotla ea foil ea AL e ka sebelisoa ho pheha mocheso o phahameng haholo.

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2. Mokelikeli oa ho hlatsoa mokotla oa ho ema

Litlhoko tsa ho paka:matla a phahameng, ho hanyetsa tšusumetso, khanyetso e phatlohileng, thepa e ntle ea thibelo, ho tiea hantle, ho khona ho ema hantle, ho hanyetsa khatello ea maikutlo, le ho tiisa hantle.

Sebopeho sa moralo:①Ema mokotla: BOPA/LLDPE; Ka tlase: BOPA/LLDPE. ②Ema mokotla: BOPA / e matlafalitse BOPP/LLDPE; tlase: BOPA/LLDPE. ③Ema mokotla: PET/BOPA/e matlafalitsoeng ke BOPP/LLDPE; tlase: BOPA/LLDPE.

Mabaka a moralo:Sebopeho se ka holimo se na le thepa e ntle ea thibelo, thepa e thata haholo, 'me e loketse mekotla ea liphutheloana tse tharo. Botlaaseng bo tenyetseha ebile bo loketse ho sebetsa. Lera le ka hare le fetotsoe PE, e nang le tiiso e ntle le ho hanyetsa tšilafalo. BOPP e matlafalitsoeng e eketsa matla a mochini oa thepa le ho ntlafatsa thepa ea tšitiso ea thepa. PET e ntlafatsa ho hanyetsa metsi le matla a mochine oa thepa.

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3.Sephutheloana se nyopa

Litlhoko tsa ho paka bakeng sa lisebelisoa tse koahelang:Li tlameha ho ba tse nyopa nakong ea ho paka le ho sebelisoa.

Sebopeho sa moralo:ho roala/AL/peel layer/MDPE/LDPE/EVA/peel layer/PET.

Lebaka la moralo:PET ke filimi e sireletsang e hloekisitsoeng e ka ebolloang. Ha o kena sebakeng sa ho paka se sa hloekang, ebola PET ho pepesa bokaholimo bo sa hloekang. Lera le koetsoeng la AL foil le koaheloa ha bareki ba noa. Hlakola lesoba la ho noa holim'a lera la PE esale pele, 'me lesoba la ho noa le tla pepesoa ha foil ea AL e tlosoa. AL foil e sebelisoa bakeng sa thibelo e phahameng. MDPE e na le ho tiea ho betere le ho khomarela mocheso o betere ka foil ea AL. LDPE e theko e tlase. Likahare tsa VA tsa EVA ea kahare ke 7%. VA> 14% ha e lumelle ho kopana ka ho toba le lijo. Ho tiisa mocheso o tlase oa mocheso oa EVA ho na le khanyetso e ntle ea ho tiisa tšilafalo.

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4.Sephutheloana sa chefo e bolaeang likokoanyana

Litlhoko tsa ho paka:Kaha meriana e bolaeang likokoanyana e chefo haholo 'me e beha polokeho ea motho le tikoloho kotsing, ho paka ho hloka matla a holimo, ho tiea ho hoholo, ho hanyetsa tšusumetso, ho hana ho theoha le ho tiisa hantle.

Sebopeho sa moralo:BOPA/VMPET/S-CPP

Lebaka la moralo: BOPA e na le maemo a matle, e hanyetsanang le ho phunya, matla a holimo le khatiso e ntle. VMPET e na le matla a phahameng le thepa e ntle ea litšitiso, 'me e ka sebelisa lisebelisoa tsa ho roala tse teteaneng. S-CPP e fana ka tiiso ea mocheso, thepa ea thibelo le ho hanyetsa kutu, 'me e sebelisa ternary copolymer PP. Kapa sebelisa multilayer co-extruded CPP e nang le mekoallo e phahameng ea EVOH le PA.

5. Mekotla e boima ea ho paka

Litlhoko tsa ho paka: Liphutheloana tse boima li sebelisoa bakeng sa ho paka lihlahisoa tsa temo tse kang raese, linaoa, lihlahisoa tsa lik'hemik'hale (tse kang menontsha), joalo-joalo.

Sebopeho sa moralo:PE / lesela la polasetiki / PP, PE / pampiri / PE / lesela la polasetiki / PE, PE / PE

Lebaka la moralo:PE e fana ka tiiso, ho fetoha habonolo, ho hanyetsa ho theoha, le matla a phahameng a masela a polasetiki.