Kodi Vacuum Packaging ndi chiyani

Kuyika kwa vacuum, komwe kumadziwikanso kuti decompression packaging, ndikutulutsa mpweya wonse m'chidebe chopakira ndikusindikiza kuti chisungidwe chisasunthike kwambiri m'thumba. Kuperewera kwa mpweya kumakhala kofanana ndi zotsatira za mpweya wochepa, kotero kuti tizilombo toyambitsa matenda tisakhale ndi moyo, kuti tipeze chakudya chatsopano komanso palibe matenda. cholinga cha kuchitika. Ntchito zikuphatikizapo vacuum ma CD mu matumba apulasitiki, zotayidwa zojambulazo ma CD, glassware, pulasitiki ndi gulu lake zinthu ma CD, etc. Packaging zipangizo akhoza kusankhidwa malinga ndi mtundu wa zinthu. Popeza zipatso ndi chakudya chatsopano, zimapumabe, ndipo kuchuluka kwa hypoxia kumayambitsa matenda amthupi. Chifukwa chake, kuyika kwa vacuum sikugwiritsidwa ntchito kwambiri pazipatso.

Concept ndi ntchito

Kuyika kwa vacuum ndi phukusi lomwe limateteza zinthu ku kuwonongeka kwa chilengedwe ndikutalikitsa moyo wa alumali wazakudya, zomwe zimatha kukweza mtengo ndi mtundu wazinthu. Tekinoloje yonyamula vacuum idayamba m'ma 1940s. Popeza mafilimu apulasitiki a polyester ndi polyethylene adagwiritsidwa ntchito bwino pakuyika zinthu mu 1950, makina onyamula vacuum apangidwa mwachangu.

M'munda wa moyo wa anthu ndi ntchito, mitundu yonse ya pulasitiki vacuum phukusi limapezeka paliponse. Zopepuka zopepuka, zopanda mpweya, zosungirako mwatsopano, zotsutsana ndi dzimbiri, ndi anti- dzimbiri pulasitiki vacuum matumba amakwirira minda yambiri kuchokera ku chakudya kupita ku mankhwala, zovala zoluka, kuchokera pakupanga zinthu zolondola mpaka zopangira zitsulo ndi ma labotale. Kuchulukirachulukira kwapang'onopang'ono kwa ma pulasitiki a vacuum kwalimbikitsa kukula kwa makina onyamula vacuum ya pulasitiki ndikuyika zofunika kwambiri kwa iwo.

Makina opangira vacuum: cholinga chake ndikuchepetsa kuchuluka kwa okosijeni mu phukusi, kuteteza nkhungu ndi kuwonongeka kwa chakudya chopakidwa, kusunga mtundu ndi fungo la chakudya, ndikukulitsa moyo wa alumali.

Ntchito yayikulu yoyika vacuum ndikuchotsa okosijeni kuti chakudya chisawonongeke. Mfundoyi ndi yosavuta, chifukwa kuwonongeka kwa chakudya kumayamba chifukwa cha ntchito za tizilombo toyambitsa matenda, ndipo kupulumuka kwa tizilombo toyambitsa matenda (monga nkhungu ndi yisiti) kumafuna mpweya. Inde, ndipo kuyika kwa vacuum kumagwiritsa ntchito mfundo iyi kuti atulutse mpweya mu Packaging Chikwama ndi ma cell a chakudya, kotero kuti zinthu zazing'ono zimataya "malo opulumuka". Kuyesera kwatsimikizira kuti: pamene mpweya wa okosijeni mu thumba loyikamo ndi ≤1%, kukula ndi kubereka kwa tizilombo toyambitsa matenda kudzatsika kwambiri, ndipo pamene mpweya wa okosijeni uli ≤0.5%, tizilombo toyambitsa matenda timaletsedwa ndikusiya kuswana. (Zindikirani: Kuyika kwa vacuum sikungalepheretse kukula kwa mabakiteriya a anaerobic ndi kuwonongeka kwa chakudya ndi kusinthika kwamtundu komwe kumachitika chifukwa cha zochita za michere, chifukwa chake ziyenera kuphatikizidwa ndi njira zina zothandizira, monga firiji, kuzizira kwambiri, kutaya madzi m'thupi, kutentha kwambiri, kutsekereza ma radiation, kutsekereza ma microwave, kuzifutsa mchere etc.)

Kuphatikiza pa kulepheretsa kukula ndi kubereka kwa tizilombo tating'onoting'ono, vacuum deoxygenation ili ndi ntchito ina yofunikira yoletsa kutsekemera kwa chakudya. Chifukwa chakuti zakudya zamafuta zimakhala ndi mafuta ambiri osatulutsidwa, zimakhala ndi okosijeni, zomwe zimapangitsa kuti chakudya chizikoma komanso kuti chiwonongeke. Kuphatikiza apo, okosijeni kumapangitsanso chakudya Kutayika kwa mavitamini A ndi C, zinthu zosakhazikika mumitundu yazakudya zimakhudzidwa ndi mpweya, zomwe zimapangitsa mtundu kukhala mdima. Chifukwa chake, kuchotsa okosijeni kumatha kuletsa chakudya kuti chisawonongeke ndikusunga mtundu wake, fungo lake, kukoma kwake komanso zakudya zake.

Ntchito yaikulu ya phukusi lodzaza mpweya wa vacuum sikuti ndi ntchito yosungira mpweya, komanso ntchito ya anti-pressure, air-blocking ndi kusunga mwatsopano. Ikhoza kusunga mtundu woyambirira, kununkhira, kukoma, mawonekedwe ndi khalidwe la chakudya kwa nthawi yaitali. mtengo wopatsa thanzi. Kuonjezera apo, zakudya zambiri sizoyenera kulongedza vacuum koma ziyenera kudzaza ndi kukwera kwa vacuum. Monga crispy ndi osalimba chakudya, chakudya kuti n'zosavuta agglomerate, chakudya mosavuta deform ndi kutaya mafuta, chakudya ndi lakuthwa m'mphepete kapena mkulu kuuma kuti puncture thumba ma CD, etc. Pambuyo chakudya vacuum-odzaza, inflation kuthamanga mkati mwa thumba ma CD ndi wamphamvu kuposa mphamvu ya mumlengalenga kupsinjidwa kunja kwa thumba, amene angathe kuphwanyidwa ndi thumba logwira ntchito kunja kwa thumba la chakudya. pansi pampanipani popanda kukhudza mawonekedwe ndi kusindikiza kukongoletsa kwa thumba loyikamo.

Zovala zodzaza ndi mpweya zimadzazidwa ndi nayitrogeni, kaboni dayokisaidi, mpweya umodzi wa oxygen kapena chisakanizo cha mipweya iwiri kapena itatu mutachotsa. Mpweya wa nayitrogeni ndi mpweya wa inert, womwe umakhala ngati kudzaza kuti ukhalebe ndi mphamvu yabwino mkati mwa thumba kuti ateteze mpweya kunja kwa thumba kuti usalowe m'thumba ndikuteteza chakudya. Nayitrojeni woipa amatha kusungunuka mosavuta m'mafuta kapena m'madzi, ndipo kuwala kwa carbonic acid komwe kumabwera chifukwa cha kusungunuka kumeneku kumalepheretsa ma mircobial monga nkhungu ndi mabakiteriya ovunda. Mpweya wake wa okosijeni ungalepheretse kukula ndi kuberekana kwa mabakiteriya a anaerobic, kusunga zipatso ndi ndiwo zamasamba zatsopano ndi zokongola, ndipo mpweya wambiri umapangitsa kuti nyama yatsopano ikhale yofiira. Kutsitsimuka kwa zipatso ndi ndiwo zamasamba sikutaya zakudya.

Kuchuluka kwa ntchito

1. Mankhwala ochiritsidwa: soseji, nyama yankhumba, bakha wamchere, etc.

2. Zakudya zamasamba: mpiru wothira, radish wouma, kohlrabi, kimchi, etc.

3. Zogulitsa za soya: tofu zouma, nkhuku zamasamba, phala la nyemba, ndi zina zotero.

4. Zakudya zophikidwa: nkhuku yowotcha, bakha wowotcha, ng'ombe ndi msuzi, chakudya chokazinga, ndi zina zotero.

5. Chakudya chosavuta: mpunga, Zakudyazi zonyowa nthawi yomweyo, masamba ophika, ndi zina.

6. Zitini zofewa: nsungwi mphukira m'madzi oyera, zipatso mu madzi, phala eyiti chuma, etc.