Tiyi yobiriwira imakhala ndi zinthu monga ascorbic acid, tannins, polyphenolic compounds, catechin fats ndi carotenoids. Zosakaniza izi zimatha kuwonongeka chifukwa cha mpweya, kutentha, chinyezi, kuwala komanso fungo lachilengedwe. Chifukwa chake, pakunyamula tiyi, chikoka chazifukwa zomwe zili pamwambazi ziyenera kufowoketsedwa kapena kupewedwa, ndipo zofunikira ndi izi:
Kukana chinyezi
Madzi omwe ali mu tiyi sayenera kupitirira 5%, ndipo 3% ndiyo yabwino kwambiri yosungirako nthawi yaitali; Apo ayi, ascorbic acid mu tiyi idzawonongeka mosavuta, ndipo mtundu, fungo ndi kukoma kwa tiyi zidzasintha, makamaka pa kutentha kwakukulu. , chiwopsezo cha kuwonongeka chidzawonjezeka. Chifukwa chake, zida zoyikamo zokhala ndi ntchito yabwino yotsimikizira chinyezi zitha kusankhidwa kuti zisungidwe zosakwanira chinyezi, monga makanema apakanema otengera zojambulazo za aluminiyamu kapena filimu yopangidwa ndi aluminiyamu yotulutsa mpweya, yomwe imatha kukhala yoteteza chinyezi kwambiri. Chisamaliro chapadera chiyenera kuperekedwa ku chithandizo cha chinyezi cha ma CD a tiyi wakuda.
Kukana kwa okosijeni
Mpweya wa okosijeni mu phukusi uyenera kuyendetsedwa pansi pa 1%. Kuchuluka kwa okosijeni kumapangitsa kuti zigawo zina za tiyi ziwonongeke. Mwachitsanzo, ascorbic asidi mosavuta oxidized mu deoxyascorbic asidi, ndi zina limaphatikizana ndi amino zidulo kukumana pigment anachita, zomwe zimapangitsa kukoma kwa tiyi kuipiraipira. Popeza mafuta a tiyi amakhala ndi mafuta ambiri osatulutsidwa, mafuta acids otere amatha kukhala oxidized kuti apange zinthu za carbonyl monga ma aldehydes ndi ma ketoni ndi ma enol, omwe angapangitsenso kununkhira kwa tiyi kutha, kukomoka kumakhala kopepuka, ndipo mtundu wake umakhala wakuda.
Mthunzi
Popeza tiyi imakhala ndi chlorophyll ndi zinthu zina, polongedza masamba a tiyi, kuwala kuyenera kutetezedwa kuti chlorophyll ndi zinthu zina zisamawonongeke. Kuphatikiza apo, kuwala kwa ultraviolet ndi chinthu chofunikira kwambiri pakuwonongeka kwa masamba a tiyi. Kuthetsa mavuto amenewa, shading ma CD luso angagwiritsidwe ntchito.
Chotchinga gasi
Kununkhira kwa masamba a tiyi kumatayika mosavuta, ndipo zinthu zokhala ndi mpweya wabwino ziyenera kugwiritsidwa ntchito popanga zosunga fungo. Kuonjezera apo, masamba a tiyi ndi osavuta kwambiri kuti atenge fungo lakunja, kotero kuti fungo la masamba a tiyi ali ndi kachilombo. Chifukwa chake, fungo lopangidwa ndi zida zomangira ndi ukadaulo wazonyamula ziyenera kuyendetsedwa mosamalitsa.
Kutentha kwakukulu
Kuwonjezeka kwa kutentha kudzafulumizitsa makutidwe ndi okosijeni a masamba a tiyi, ndipo nthawi yomweyo kumapangitsa kuti kung'anima kwa masamba a tiyi kuzimiririka. Choncho, masamba a tiyi ndi oyenera kusungidwa pa kutentha kochepa.
Kupaka thumba la composite
Pakali pano, tiyi wochulukirachulukira pamsika wapakidwa mkatimatumba amafilimu ophatikiza. Pali mitundu yambiri yamakanema oyika tiyi, monga cellophane / polyethylene / pepala / aluminiyamu zojambulazo / polyethylene, biaxially oriented polypropylene / aluminiyamu zojambulazo / polyethylene, polyethylene / polyvinylidene chloride / polyethylene / polyethylene / polyethylene / aluminium zojambulazo / polyethylene, biaxially oriented polypropylene / aluminium zojambulazo / polyethylene, polyethylene / polyvinylidene chloride / polyethylene / polyethylene / polyethylene / polyethylene / polyethylene zojambulazo, zotchinga madzi, ndi zina zotero. ndi anti-peculiary fungo. Mawonekedwe a filimu yophatikizika yokhala ndi zojambulazo za aluminiyamu ndipamwamba kwambiri, monga shading yabwino kwambiri ndi zina zotero. Pali mitundu yosiyanasiyana yoyikamo yamatumba amafilimu ophatikizika, kuphatikiza kusindikiza mbali zitatu,matumba oima,matumba oyimilira okhala ndi zenera lowoneka bwinondi kupindika. Kuphatikiza apo, chikwama cha filimu chophatikizika chimakhala ndi kusindikiza kwabwino, ndipo chidzakhala ndi zotsatira zapadera zikagwiritsidwa ntchito popanga malonda ogulitsa.
Nthawi yotumiza: Jun-18-2022