Chifukwamafilimu odzaza chakudyaali ndi zida zabwino kwambiri zotetezera bwino chitetezo chazakudya, ndipo kuwonekera kwawo kowoneka bwino kumatha kukongoletsa katundu, makanema onyamula zakudya amatenga gawo lofunikira kwambiri pakuyika zinthu. Kuti akwaniritse kusintha komwe kukuchitika kunja ndi zosowa za ogula osiyanasiyana, makampani ambiri padziko lonse lapansi awonjezera kafukufuku wawo ndi ntchito zachitukuko pamakanema onyamula chakudya.
1. Kanema wazonyamula
Mafilimu omwe amagwiritsidwa ntchito nthawi zambiri amaphatikizapo: PVA coated chotchinga filimu, biaxially oriented polypropylene film (BOPP), biaxially oriented polyester film (BOPET), nayiloni film (PA), cast polypropylene film (CPP) , aluminized film, etc. Mafilimuwa amagwiritsidwa ntchito kwambiri chifukwa cha machitidwe awo abwino kwambiri, kuwonekera bwino, kulimba kwamphamvu kwambiri, zinthu zina zotchinga mpweya ndi madzi komanso mtengo wotsika wopanga.
2. Kanema wazonyamula zodyera
Mafilimu onyamula odyetsedwa amatanthauza zinthu zodyedwa, makamaka zinthu zachilengedwe za macromolecular monga lipids, mapuloteni ndi ma polysaccharides, omwe amawonjezeredwa ndi mapulasitiki odyeka, othandizira ophatikizana, ndi zina zotero, osakanikirana ndi zotsatira za thupi, ndi kukonzedwa pogwiritsa ntchito njira zosiyanasiyana zogwirira ntchito. Malinga ndi mawonekedwe a zida zazikulu zomwe zimagwiritsidwa ntchito, makanema odyedwa amatha kugawidwa m'magulu anayi: makanema odyeka amafuta, makanema odyedwa ndi mapuloteni, makanema odyedwa a lipid, ndi makanema odyedwa. Makanema ogwirika akhala akugwiritsidwa ntchito kwambiri m'moyo watsiku ndi tsiku, monga pepala lodziwika bwino la mpunga wopaka maswiti, makapu oyika chimanga a ayisikilimu, ndi zina zotere, zomwe ndi zonyamula zodyedwa. Poyerekeza ndi zopangira zopangira, mafilimu odyedwa amatha kuonongeka popanda kuipitsidwa kulikonse. Ndi kupititsa patsogolo kuzindikira kwa chilengedwe kwa anthu, mafilimu odyedwa asanduka malo opangira kafukufuku pazakudya ndipo apeza zotsatira zina.
3. Antibacterial chakudya ma CD film
Antibacterialfilimu yopangira chakudyandi mtundu wa filimu yogwira ntchito yomwe imatha kuletsa kapena kupha mabakiteriya apamwamba. Malinga ndi mawonekedwe a antibacterial, amatha kugawidwa m'mitundu iwiri: antibacterial mwachindunji ndi antibacterial osalunjika. Direct antibacterial zimatheka kudzera mwachindunji kukhudzana pakati pa ma CD zipangizo okhala ndi zosakaniza antibacterial ndi chakudya; osalunjika antibacterial makamaka kuwonjezera zinthu zina chonyamulira kuti akhoza kusintha microenvironment mu phukusi, kapena ntchito permeability kusankha wa ma CD zipangizo kulamulira tizilombo. Kukula, monga kusinthidwa m'mlengalenga ma CD filimu.
4. Nanocomposite ma CD filimu
Kanema wa Nanocomposite amatanthauza filimu yophatikizika yopangidwa ndi zigawo zokhala ndi miyeso molingana ndi ma nanometers (1-100nm) ophatikizidwa mumatrices osiyanasiyana. Zili ndi ubwino wa zipangizo zamakono zophatikizika komanso ma nanomatadium amakono. Chifukwa cha mawonekedwe apamwamba, mphamvu ya voliyumu, kukula kwake ndi mawonekedwe ena opangidwa ndi mawonekedwe apadera a mafilimu a nanocomposite, mawonekedwe awo owoneka bwino, makina, antibacterial properties, zotchinga katundu ndi zina zimakhala ndi makhalidwe omwe zipangizo zamakono zilibe, zomwe zimapangitsa kuti zikhale zothandiza. mu chakudya. Amagwiritsidwa ntchito kwambiri pakuyika, osati kungokwaniritsa zofunikira zowonjezera moyo wa alumali wa chakudya, komanso kuyang'anira kusintha kwa zakudya mu phukusi.
5. Kanema wazolongedza wa biodegradable
Mtundu uwu wa filimu makamaka amathetsa vuto kuti n'kovuta akonzanso zinthu zina sanali degradable ma CD zipangizo. Kuzikwirira pansi kudzawononga dongosolo la nthaka, ndipo kuwotcha kudzatulutsa mpweya wapoizoni ndi kuwononga mpweya. Malinga ndi momwe zimawonongera, zimagawika kwambiri kukhala filimu yoyika zithunzi komanso filimu yopangira ma biodegradable.
Chifukwa mafilimu owonongeka amakwaniritsa zofunikira zoteteza chilengedwe, tsopano amaphunziridwa kwambiri ndipo akopa chidwi cha ofufuza osiyanasiyana. Zida zambiri zatsopano zomwe zitha kuwonongeka komanso zoteteza zachilengedwe zapangidwa, monga ma polima opangidwa kuchokera ku zopangira zowuma pogwiritsa ntchito zida zongowonjezeranso (monga chimanga). Lactic acid (PLA), pulasitiki wokonda zachilengedwe polypropylene carbonate (PPC) wopangidwa kuchokera ku carbon dioxide ndi propylene oxide monga zopangira, ndi chitosan (chitosan) chotengedwa kuchokera ku deacetylation ya chitin, yomwe imapezeka kwambiri m'chilengedwe. . Zinthu zakuthupi izi zimachepetsedwa; mawonekedwe a kuwala, kuwonekera, ndi kuwala kwapamwamba nazonso ndizosawonongeka. Sikuti amangokumana ndi kuwonekera kwakukulu kwa mafilimu olongedza, komanso amagwira ntchito yokonza chilengedwe, ndipo ali ndi chiyembekezo chogwiritsa ntchito.
Komabe, ndikofunikira kunena kuti filimu yonyamula zakudya imakhala ndi zofunikira kwambiri paukhondo ndi chitetezo cha zida zonyamula, ndipo zimafunikira miyezo yoyenera ndi njira zoyesera. Ngakhale njira zina zachitidwa kunyumba ndi kunja, pali zofooka zambiri. . Mayiko akunja apanga posachedwa kugwiritsa ntchito ukadaulo wamankhwala a plasma kuti asungunuke SiOx, AlOx ndi zokutira zina za inorganic oxide pamagawo ang'onoang'ono monga PET ndi BOPP kuti apeze makanema onyamula okhala ndi zotchinga zazikulu. Kanema wokutidwa ndi silikoni ndi wosasunthika ku kutentha ndipo ndi yoyenera kuphika ndi kusungunula zakudya. Mafilimu owonongeka, mafilimu odyedwa ndi mafilimu osungunuka m'madzi ndi zinthu zobiriwira zomwe zapangidwa ndi mayiko padziko lonse lapansi m'zaka zaposachedwa. Kafukufuku wokhudzana ndi kugwiritsa ntchito ma polima achilengedwe a macromolecular monga lipids, mapuloteni ndi shuga monga mafilimu onyamula nawonso akhala akuchulukirachulukira.
Ngati muli ndi zofunika filimu ma CD chakudya, mukhoza kulankhula nafe. Monga wopanga ma CD osinthika kwazaka zopitilira 20, tidzakupatsirani mayankho anu oyenera malinga ndi zosowa zanu ndi bajeti.
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Nthawi yotumiza: Dec-27-2023
