Pali mitundu yambiri ya matumba ophikira chakudya omwe amagwiritsidwa ntchito pophikira chakudya, ndipo ali ndi magwiridwe antchito awoawo komanso makhalidwe awoawo. Lero tikambirana za chidziwitso chomwe chimagwiritsidwa ntchito kwambiri pa matumba ophikira chakudya kuti mugwiritse ntchito. Ndiye thumba lophikira chakudya ndi chiyani? Matumba ophikira chakudya nthawi zambiri amatchula mapulasitiki ofanana ndi pepala okhala ndi makulidwe osakwana 0.25 mm ngati mafilimu, ndipo ma CD osinthika opangidwa ndi mafilimu apulasitiki amagwiritsidwa ntchito kwambiri mumakampani azakudya. Pali mitundu yosiyanasiyana ya matumba ophikira chakudya. Ndi owonekera bwino, osinthasintha, ali ndi kukana madzi bwino, kukana chinyezi komanso kuletsa mpweya, mphamvu yabwino yamakina, kukana mankhwala okhazikika, kukana mafuta, osavuta kusindikiza bwino, ndipo amatha kutsekedwa ndi kutentha m'matumba. Kuphatikiza apo, ma CD osinthika chakudya omwe amagwiritsidwa ntchito nthawi zambiri amakhala ndi magawo awiri kapena kuposerapo a mafilimu osiyanasiyana, omwe nthawi zambiri amatha kugawidwa m'magulu akunja, apakati komanso amkati malinga ndi malo awo.
Kodi zofunikira pakugwiritsa ntchito gawo lililonse la mafilimu opukutira chakudya osinthasintha ndi ziti? Choyamba, filimu yakunja nthawi zambiri imasindikizidwa, imakanidwa, komanso imakanidwa ndi media. Zinthu zomwe zimagwiritsidwa ntchito nthawi zambiri zimaphatikizapo OPA, PET, OPP, ndi mafilimu okhala ndi zokutira. Filimu yapakati nthawi zambiri imakhala ndi ntchito monga chotchinga, mthunzi wopepuka, komanso chitetezo chakuthupi. Zinthu zomwe zimagwiritsidwa ntchito nthawi zambiri zimaphatikizapo BOPA, PVDC, EVOH, PVA, PEN, MXD6, VMPET, AL, ndi zina zotero. Kenako pali filimu yamkati, yomwe nthawi zambiri imakhala ndi ntchito zotchinga, kutseka, komanso zotsutsana ndi media. Zinthu zomwe zimagwiritsidwa ntchito nthawi zambiri ndi CPP, PE, ndi zina zotero. Kuphatikiza apo, zinthu zina zimakhala ndi gawo lakunja komanso lapakati. Mwachitsanzo, BOPA ingagwiritsidwe ntchito ngati gawo lakunja losindikizira, ndipo ingagwiritsidwenso ntchito ngati gawo lapakati kuti igwire ntchito inayake yotchinga komanso chitetezo chakuthupi.
Makhalidwe a filimu yolumikizira chakudya yomwe imagwiritsidwa ntchito kwambiri, makamaka, zinthu zakunja ziyenera kukhala ndi kukana kukanda, kukana kubowola, chitetezo cha UV, kukana kuwala, kukana mafuta, kukana zinthu zachilengedwe, kukana kutentha ndi kuzizira, kukana kupsinjika, kukana kupsinjika, kusindikizidwa, kukhazikika kutentha, kununkhira kochepa, kotsika Kopanda fungo, kopanda poizoni, konyezimira, kowonekera, kofiyira ndi zinthu zingapo; zinthu zapakati ziyenera kukhala ndi kukana kukhudza, kukana kupsinjika, kukana kubowola, kukana chinyezi, kukana mpweya, kusunga fungo, kukana kuwala, kukana mafuta, kukana zinthu zachilengedwe, kukana kutentha ndi kuzizira, kukana kupsinjika, mphamvu yophatikizana mbali zonse ziwiri, kukoma kochepa, kununkhira kochepa, kopanda poizoni, kowonekera, kopanda kuwala ndi zina; ndiye kuti zinthu zamkati, kuwonjezera pa zinthu zina zomwe zimafanana ndi zakunja ndi zapakati, zilinso ndi zinthu zake zapadera, zomwe ziyenera kukhala ndi kusungira fungo, kukana kutsika kwa madzi komanso kukana kulowa kwa madzi. Kukula kwa matumba osungira chakudya ndi motere:
1. Matumba ophikira chakudya opangidwa ndi zinthu zosawononga chilengedwe.
2. Pofuna kuchepetsa ndalama ndikusunga ndalama, matumba ophikira chakudya akuchepa.
3. Matumba ophikira chakudya akukula motsatira ntchito zapadera. Zipangizo zophatikizika zokhala ndi zopinga zambiri zidzapitiriza kuwonjezera mphamvu pamsika. M'tsogolomu, mafilimu okhala ndi zopinga zambiri okhala ndi ubwino wosavuta kukonza, mpweya wabwino komanso mphamvu yotchinga nthunzi ya madzi, komanso nthawi yabwino yosungiramo chakudya adzakhala chinthu chofunikira kwambiri pakupanga chakudya m'masitolo akuluakulu mtsogolomu.
Nthawi yotumizira: Novembala-26-2022
