1. Ndikofunikira kumvetsetsa zofunikira zoteteza chakudya
Zakudya zosiyanasiyana zimakhala ndi zigawo zosiyana za mankhwala, thupi ndi mankhwala, ndi zina zotero, kotero zakudya zosiyanasiyana zimakhala ndi zofunikira zosiyana zotetezera pakuyika.Mwachitsanzo,pakiti ya tiyiIyenera kukhala ndi kukana kwa okosijeni wambiri (kuteteza zinthu zomwe zimagwira ntchito kuti zisakhale ndi okosijeni), kukana chinyezi chambiri (tiyi amaundana ndikuwonongeka akamanyowa), kukana kuwala kwambiri (chlorophyll mu tiyi isintha pakuwala kwa dzuwa), komanso kukana kwambiri kununkhira.(Zigawo za fungo la mamolekyu a tiyi ndizosavuta kutulutsa, ndipo fungo la tiyi limatayika. Kuphatikiza apo, masamba a tiyi nawonso ndi osavuta kuyamwa fungo lakunja), ndipo gawo lalikulu la tiyi pamsika pano likuphatikizidwa mwachizolowezi. PE, PP ndi matumba ena apulasitiki owonekera, omwe amawononga kwambiri zosakaniza za tiyi , khalidwe la tiyi silingatsimikizidwe.
Mosiyana ndi zakudya pamwambapa, zipatso, ndiwo zamasamba, ndi zina zotero zimakhala ndi njira zopumira pambuyo potola, ndiko kuti, kulongedzako kumafunika kukhala ndi mphamvu zosiyana ndi mpweya wosiyanasiyana.Mwachitsanzo,khofi wokazingaadzatulutsa pang'onopang'ono mpweya woipa mutatha kulongedza, nditchiziadzatulutsanso mpweya woipa mutatha kulongedza, kotero ma CD awo ayenera kukhala otchinga mpweya wambiri komanso mpweya wambiri wa carbon dioxide.Zofunikira zotetezera pakuyika nyama yaiwisi, chakudya chanyama chokonzedwa,zakumwa, zokhwasula-khwasula,ndizinthu zophikidwanawonso ndi osiyana kwambiri.Chifukwa chake, zotengerazo ziyenera kupangidwa mwasayansi molingana ndi mawonekedwe osiyanasiyana a chakudya chokha komanso chitetezo chamadzi.
2. Sankhani zida zonyamula ndi ntchito yoyenera yoteteza
Zipangizo zamakono zopangira chakudya makamaka zimaphatikizapo mapulasitiki, mapepala, zinthu zophatikizika (zambiri zosanjikiza zinthu monga pulasitiki / pulasitiki, pulasitiki / mapepala, pulasitiki / aluminiyamu, zojambulazo / mapepala / pulasitiki, etc.), mabotolo agalasi, zitini zachitsulo Dikirani.Timayang'ana kwambiri zida zophatikizika komanso zopangira pulasitiki.
1) Zida zophatikizika
Zida zophatikizika ndizosiyanasiyana komanso zogwiritsidwa ntchito kwambiri zosinthira ma CD.Pakali pano, pali mitundu yoposa 30 ya mapulasitiki omwe amagwiritsidwa ntchito popakira zakudya, ndipo pali mazana azinthu zophatikizika zambiri zomwe zimakhala ndi mapulasitiki.Zida zophatikizika nthawi zambiri zimagwiritsa ntchito zigawo 2-6, koma zimatha kufikira magawo 10 kapena kuposerapo pazosowa zapadera.Kugwiritsa ntchito pulasitiki, pepala kapena minofu pepala makina, zojambulazo aluminiyamu ndi magawo ena, sayansi ndi wololera compounding kapena lamination ngakhale, akhoza pafupifupi kukwaniritsa ma CD zofunika zakudya zosiyanasiyana.Mwachitsanzo, moyo wa alumali wa Tetra Pak wopaka mkaka wopangidwa ndi zinthu zambiri zosanjikiza monga pulasitiki / makatoni / aluminiyamu-pulasitiki / pulasitiki ukhoza kukhala utali wa theka la chaka mpaka chaka.Nthawi ya alumali ya zitini za nyama zotchinga zotchinga kwambiri zimatha kukhala zaka zitatu, ndipo nthawi ya alumali ya makeke ophatikizika m'maiko ena otukuka imatha kupitilira chaka chimodzi.Pambuyo pa chaka chimodzi, zakudya, mtundu, fungo, kukoma, mawonekedwe ndi tizilombo tating'onoting'ono ta keke timakumanabe Amafuna.Popanga ma CD ophatikizika azinthu, chidwi chapadera chiyenera kuperekedwa pakusankha magawo agawo lililonse, kugawa kuyenera kukhala kwasayansi komanso koyenera, ndipo magwiridwe antchito amtundu uliwonse wosanjikiza ayenera kukumana ndi zofunikira zonse za chakudya chonyamula.
2) Pulasitiki
Pali mitundu khumi ndi isanu kapena isanu ndi umodzi ya mapulasitiki omwe amagwiritsidwa ntchito popanga zakudya m'dziko langa, monga PE, PP, PS, PET, PA, PVDC, EVA, PVA, EVOH, PVC, utomoni wa ionomer, ndi zina zotero. okhala ndi kukana kwa okosijeni wambiri akuphatikizapo PVA, EVOH, PVDC, PET, PA, etc., omwe ali ndi kukana kwa chinyezi chambiri akuphatikizapo PVDC, PP, PE, etc.;omwe ali ndi mphamvu yolimbana ndi ma radiation monga PS onunkhira nayiloni, ndi zina zotero;omwe ali ndi kukana kutentha kochepa monga PE, EVA, POET, PA, etc.;kukana mafuta abwino komanso makina amakina, monga utomoni wa ionomer, PA, PET, ndi zina zotero, zomwe zimagonjetsedwa ndi kutentha kwapamwamba komanso kutentha kochepa, monga PET, PA, ndi zina zotero. ya polymerization ndi yosiyana, mtundu ndi kuchuluka kwa zowonjezera ndizosiyana, komanso katundu wake ndi wosiyana.Ngakhale katundu wa magulu osiyanasiyana a pulasitiki yemweyo adzakhala osiyana.Chifukwa chake, ndikofunikira kusankha mapulasitiki oyenera kapena kuphatikiza mapulasitiki ndi zida zina malinga ndi zofunikira.Kusankha molakwika kungapangitse kuti chakudyacho chichepe kapena kutaya mtengo wake wodyedwa.
3.kugwiritsa ntchito njira zamakono zopangira ma CD
Kuti atalikitse moyo wa alumali wazakudya, matekinoloje atsopano opangira zinthu omwe amapangidwa nthawi zonse, monga kulongedza mwachangu, anti-mold pack, kuyika kwa chinyezi, anti-fog kulongedza, anti-static kupaka, kusankha kopumira, kusatsetsereka. kulongedza katundu, zosungira zosungira, ndi zina zotero, zimagwiritsidwa ntchito kwambiri m'mayiko otukuka.Umisiri watsopano sagwiritsidwa ntchito kwambiri m'dziko langa, ndipo njira zina zikadalibe.Kugwiritsa ntchito matekinoloje apamwambawa kumatha kusintha kwambiri ntchito yoteteza pakuyika.
4. Kusankhidwa kwa makina onyamula ndi zida zothandizira ukadaulo wopangira chakudya
Pofuna kukwaniritsa zofunikira zaukadaulo wopangira chakudya, zida zosiyanasiyana zonyamula zida zatsopano zapangidwa, monga makina onyamula vacuum, makina onyamula a vacuum inflatable, makina onyamula kutentha, makina onyamula matuza, makina onyamula khungu, zida zopangira ma sheet thermoforming, zida zamadzimadzi. Makina odzaza, kupanga / kudzaza / kusindikiza makina osindikizira, zida zonse zonyamula aseptic, etc. Malinga ndi zida zosankhidwa zomwe zimasankhidwa ndi njira zopangira, kusankha kapena kapangidwe ka makina olongedza ogwirizana ndi ukadaulo wopangira chakudya komanso mphamvu yopangira ndi chitsimikizo cha kulongedza bwino.
5. Kujambula ndi mapangidwe apangidwe ayenera kukwaniritsa zofunikira za sayansi
Mapangidwe a ma CD akuyenera kukwaniritsa zofunikira za geometric, ndikuyesera kugwiritsa ntchito zinthu zochepa kwambiri kuti mupange chidebe chachikulu cha voliyumu, chomwe chingapulumutse zipangizo zosungiramo zinthu ndikukwaniritsa zofunikira zotetezera chilengedwe.Mapangidwe a chidebe choyikapo ayenera kukwaniritsa zofunikira zamakina, ndipo mphamvu yopondereza, kukana kukhudzidwa, ndi kukana kwa dontho kuyenera kukwaniritsa zofunikira zosungirako, zoyendetsa ndi kugulitsa phukusi.Mawonekedwe a chidebe choyikapo ayenera kukhala anzeru.Mwachitsanzo, kugwiritsa ntchito chidebe chooneka ngati chinanazi polongedza madzi a chinanazi ndi chidebe chooneka ngati maapulo polongedza madzi a maapulo ndi zoikamo zina zopatsa chidwi n’kofunika kulimbikitsa.Zotengera zoyikamo ziyenera kukhala zosavuta kutsegula kapena kutsegula mobwerezabwereza, ndipo zina zimafunika kutsegulidwa kapena kusindikiza.
6. Tsatirani malamulo a kakhazikitsidwe a dziko langa ndi mayiko omwe akutumiza kunja
Kuyambira koyambira mpaka kumapeto, gawo lililonse la ntchito yolongedza liyenera kusankha zida, kusindikiza, kusindikiza, mitolo ndi kulemba molingana ndi milingo, malamulo, ndi malamulo.Kukhazikika ndi kukhazikika kumayendera njira yonse yolongedza, yomwe imathandizira kuti pakhale zinthu zopangira, kufalikira kwa zinthu ndi malonda apadziko lonse lapansi, ndi zina zambiri, zotengera zonyamula katundu Kubwezeretsanso ndi kutaya zinyalala zonyamula zinyalala kuyenera kukwaniritsa zofunikira zoteteza chilengedwe.
7. Kuyendera ma phukusi
Kupaka kwamasiku ano kumatengera kusanthula kwasayansi, kuwerengera, kusankha zinthu moyenera, kapangidwe kake ndi kukongoletsa, pogwiritsa ntchito ukadaulo wapamwamba wazolongedza ndi makina onyamula ndi zida.Monga chinthu choyenerera, kuwonjezera pa mankhwala (chakudya) chiyenera kuyesedwa, phukusi liyeneranso kuyesedwa kosiyanasiyana.Monga mpweya permeability, chinyezi permeability, kukana mafuta, kukana chinyezi chidebe ma CD, kugwirizana pakati pa ma CD chidebe (zinthu) ndi chakudya, yotsala kuchuluka kwa ma CD zakuthupi minofu chakudya, kukana kwa ma CD zinthu. kwa mmatumba chakudya, ma CD chidebe Compressive mphamvu, kuphulika mphamvu, mphamvu mphamvu, etc. Pali mitundu yambiri ya mayesero ma CD, ndi zinthu mayeso akhoza kusankhidwa malinga ndi mikhalidwe yeniyeni ndi malamulo zofunika.
8. Mapangidwe okongoletsera ma paketi ndi chidziwitso cha mtundu wa ma CD
Kapangidwe kazopaka ndi kukongoletsa kuyenera kugwirizana ndi zomwe amakonda komanso zizolowezi za ogula ndi ogula m'maiko omwe akutumiza kunja.Mapangidwe a chitsanzo amagwirizanitsidwa bwino ndi mkati.Chizindikirocho chiyenera kukhala chowonekera bwino, ndipo kufotokozera malembawo kuyenera kukwaniritsa zofunikira za chakudya.Zofotokozera zamalonda ziyenera kukhala zoona.Zizindikiro zamalonda ziyenera kukhala zokopa, zosavuta kumva, zosavuta kufalitsa, ndipo zitha kutenga nawo gawo pakufalitsa.Mapangidwe azinthu zamtundu wamtundu ayenera kukhala ndi chidziwitso chamtundu.Zopangira zina zimatha kusinthidwa mosavuta, zomwe zimakhudza malonda.Mwachitsanzo, mtundu wina wa viniga ku China uli ndi mbiri yabwino ku Japan ndi kum'mwera chakum'mawa kwa Asia, koma kuchuluka kwa malonda pambuyo posintha ma CD kumachepetsedwa kwambiri.Kuyika kwake ndikukayikira.Choncho, chinthu chiyenera kuikidwa mwasayansi ndipo sichingasinthidwe mosavuta.
Nthawi yotumiza: Jun-20-2022