Vanhu vazhinji havazivi kuti zvinhu zvipimabhegi ekurongedza chikafukazhinji anogadzirwa.Honest achatsanangura muchidimbu zvinhu zvechikafu chekuisa bhegis.
Zvokudya zvekuputira zvinhu: PVDC (polyvinylidene chloride), PE (polyethylene), PP (polypropylene), PA (nylon), EVOH (ethylene / vinyl alcohol copolymer), firimu realuminium (aluminium + PE), nezvimwewo, akawanda membranes makuru.
Kugadzirwa kwefirimu kunogona kukamurwa kuva: kutambanudza firimu, firimu rinoputika.
Parizvino, zvinhu zvikuru zvinoshandiswa pakurongedza chikafu PP uye PE, kureva, polypropylene uye polyethylene mapurasitiki.Pazvinhu zvese zviri zviviri, kurongedza chikafu kunogona kugutsikana.
Kana ichienzaniswa neyekurongedza isiri-yechikafu, PP uye PE haina epurasitiki ekuwedzera.Isu tese tinoziva kuti mapurasitiki ekuwedzera ane simba rakakura pamuviri wemunhu, kunyanya hutano hwevana.PP uye PE haizobudisi zvinhu zvine chepfu panguva yekushandiswa.Zvimwe Zvimwe zvinhu zvinogona kukonzera cancer, asi PP nePE hazvidaro.PVC packaging yaishandiswa kushandiswa firimu rekudya, asi nekuda kwekusachengeteka kwayo, zvishoma nezvishoma inotsiviwa nePE cling film.
Hunhu hwePE ndeiyi: zvinyoro, zvigadziriso zvemichina zvakaderera kupfuura PP, zvigadzirwa zvemumiriri zvinosanganisira masaga ezvitoro zvezvitoro, kuputira kwepurasitiki, masaga emarara, etc. PP yakaoma, anisotropic (zviri nyore kubvarura kana paine gap), yakanaka mechanical. zvivakwa, uye yakanyanya tembiricha kuita kuri nani pane PE, zvinoreva kuti chigadzirwa chine masaga echingwa.
Kazhinji zvinoenderana nechimiro chemukati, iyo yemukati layer iPE kana CPP, yekunze layer iPA, PET, yepakati inogona kunge iri EVOH kana PVDC, zvichingodaro, uye mamwe ari aluminized firimu kana aluminium foil.
PE neCPP vane zvakanaka kupisa sealing properties, kureva kuti, zviri nyore kuvhara.
PA uye PET zvine kudhinda kwakanaka uye zvinogona kushandiswa muchikamu chekunze kudhinda mifananidzo yakanaka.
PVDC neEVOH zvine zvipingamupinyi zvakanaka uye zvinodzivirira oxidation.
Aluminium firimu uye aluminium foil ine yakanaka inodzivirira chiedza uye inokodzera zvigadzirwa zvisina kukodzera chiedza.
Zvinhu zvakasiyana-siyana zvine maitiro akasiyana uye kushandiswa kwakasiyana.Mabhegi ezvekudya zvekurongedza haasi chinhu chimwe chete, asi akawanda-layer composite, ayo anogona kuumbwa nemateya maviri, matatu akaturikidzana, mana mana, nezvimwe.
Zvokudya zvakaomauyechikafu chakaomeswa nechandokazhinji anogadzirwa nePET/PE.
Semuyenzaniso,kubika kwepamusoro-soroinowanzogadzirwa nenylon composite CPP, kana mamwe macomposites.
Iyo tsvuku casing ye ham chinhu chimwe chete PVDC.
Candy uye chokoretikazhinji shandisa bepa rakajeka/PP, kraft bepa/PE/AL/PE, AL/PE, nezvimwe.
Nguva yekutumira: Sep-06-2022