O mea e a'afia ai tau o le afifiina

Faatasi ai ma le faʻaauauina pea o le faʻaleleia o tulaga o le soifuaga, o tulaga faʻapitoa a tagata e le gata i meaʻai lava ia. O manaoga mo lona afifiina o loʻo faʻatupulaʻia foi. O le afifiina o taumafa ua faasolosolo malie lava ona avea ma se vaega o oloa mai lona tulaga lala. E taua tele le puipuia o le oloa, E taua tele le faafaigofieina o le teuina ma le felauaiga, siitia le faatauina atu, ma faateleina le tau o oloa.

Lomiga o mea'ai e mafai ona fa'apipi'iina mea'ai

① Lomitusi aualaMea'ai fetu'una'i afifiina lomitusie masani lava ona faavae i luga o le gravure ma flexographic lomitusi, sosoo ai ma flexographic lomitusi masini e lolomi ata palasitika (flexographic lomitusi masini tele fausia laina gaosiga ma masini lamination mago), ae o lomitusi, faatusatusa i le lolomiga gravure lautele ma flexographic lomitusi faaaogaina i lomitusi oloa, e tele eseesega. Mo se fa'ata'ita'iga: Lomiga fa'apipi'i fetu'utu'una'i o lo'o lolomi i luga o le pito i luga o se mea e pei o se ta'avale. Afai o se ata tifaga manino, e mafai ona iloa le mamanu mai tua. O nisi taimi e manaʻomia le faʻaopopoina o se paʻu paʻepaʻe paʻepaʻe pe faʻaaoga se faiga lomitusi totonu.

② Faʻamatalaga o le faʻasologa o le lolomi i tua O le lolomiga e faʻatatau i se auala faʻapitoa lomitusi e faʻaogaina ai se ipu lomitusi faʻatasi ai ma ata faʻafeagai ma tusitusiga e faʻafeiloaʻi ai le vaitusi i totonu o le mea lomitusi manino, ina ia mafai ona faʻaalia le ata lelei ma tusitusiga i luma o le mea lolomi.

③ Tulaga lelei o Liyin

Pe a faatusatusa i le lomitusi i luga, o le lining mea lolomi e iai le lelei o le susulu ma le matagofie, felanulanuaʻi / e le mou atu, susu-faʻamaonia ma ofuina. A maeʻa ona faʻapipiʻiina le lomitusi faʻapipiʻi, e faʻapipiʻi le vaitusi i le va o laupepa e lua o ata tifaga, e le faʻaleagaina ai mea o loʻo afifiina.

Fa'ato'a Fa'afou Fa'aigoa Fa'aigoa Palasitika Fa'aofuofu Aluga Pouch Fa'apipi'i Retort Pouch Fa'apipi'i Sua Sua Fa'apipi'i Tu'u Tu'u Pepa Fa'aputu Pepa Fa'apipi'i Pepa Fa'aofuofu taga Fa'amea Fa'aofuofu Fa'aofuofu Fa'aofuofu Pouch Fa'aofuofu Mea'ai Fa'aofuofu taga Tea Fa'aofuofu taga taga na faia muamua.

Fa'afefiloi o mea'ai e mafai ona fa'apipi'iina mea'ai

① Susū auala fa'afefiloi: Fa'aofuofu se vaega o le fa'apipi'i solu vai i luga o le mea fa'avae (pepa palasitika, pepa alumini), fa'afefiloi ma isi mea (pepa, cellophane) e ala i se ta'avale fa'amalosi, ona fa'agogo lea i se vevela. ala fa'agogo Avea ma se pa'u tu'ufa'atasi. O lenei metotia e fetaui lelei mo le afifiina o meaai mamago.

② Fa'amamago auala lamination: fa'aaoga muamua le fa'apipi'i fa'avae soli i luga o le substrate, ona tu'uina atu lea i le ala vevela vevela e fa'amalo atoa ai le solvent, ona vave loa lea o le laminate i se isi vaega o ata tifaga. Mo se faʻataʻitaʻiga, oriented polypropylene film (OPP) e masani ona faʻapipiʻiina ma isi mea e faʻaaoga ai se faʻamago lamination faagasologa pe a maeʻa le lolomiina i totonu. O fausaga masani e: biaxially oriented polypropylene film (BOPP, 12 μm), alumini pepa (AIU, 9 μm) ma unidirectional Stretched polypropylene ata (CPP, 70 μm). O le faagasologa o le faʻaaogaina lea o se masini faʻapipiʻi e faʻaofuofu tutusa le solvent-based "dry adhesive powder" i luga o le mea faavae, ona auina atu lea i le ala vevela vevela e faʻamalo atoa ai le solvent aʻo leʻi faʻapipiʻiina i se isi vaega o ata tifaga e faʻaaoga ai se laminating roller.

③ O le auala faʻapipiʻi faʻapipiʻiina e aveese ai le pupuni pei o le polyethylene liusuavai mai le matala o le T mold, oomi i totonu o le pinch roller, ma faʻafefe i luga o pepa poʻo ata mo le polyethylene coating, poʻo le tuʻuina atu o isi ata mai le vaega lona lua fafaga pepa. Fa'aaoga le polyethylene e fai ma apa fa'apipi'i mo le fa'apipi'i.

④ Metotia fa'afefiloi vevela: Polyethylene-acrylate copolymer, ethylene acid-ethylene copolymer, ma le paraffin wax e fa'avevela ma fa'afefiloi fa'atasi, ona ufiufi lea i luga o le mea'ai, vave fa'afefiloi ma isi mea tu'ufa'atasi ma fa'amalieina.

⑤Multi-layer extrusion auala tuufaatasi

O le tele o resini palasitika ma meatotino eseese e pasi atu i le tele o extruders ma faʻapipiʻi i totonu o le limu e fai ai se ata tifaga. O lenei faiga e le manaʻomia ai ni mea faʻapipiʻi poʻo ni solvents organic i le va o laulau, ma o le ata tifaga e leai se manogi poʻo se mea e afaina ai le soli, e talafeagai mo le afifiina o meaʻai ma le umi o le fata. Mo se faʻataʻitaʻiga, o le fausaga lautele o LLDPE / PP / LLDPE e lelei le manino ma o le mafiafia e masani lava 50-60μm. Afai e umi se taimi e teu ai. E sili atu ma le lima laupepa o ata faʻapipiʻi faʻapipiʻi maualuga e manaʻomia, ma o le ogatotonu o loʻo faia i mea maualuga PA, PET ma EVOH.

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Taimi meli: Mati-13-2024