Na te piki haere tonu o nga taumata o te oranga, karekau nga paerewa tino kaha o te tangata e herea ki te kai ake.Kei te piki ake ano nga whakaritenga mo tana kohinga.Kua noho haere te takai kai hei waahanga o te hua mai i tona mana apiti.He mea nui ki te tiaki i te hua, He mea nui ki te whakahaere i te rokiroki me te kawe waka, te whakatairanga i nga hoko, me te whakanui ake i te uara hua.
Te tā i ngā rauemi tākai ngāwari kai
① Ko nga tikanga o te ta, ko te taakaha kai he mea hanga i runga i te gravure me te flexographic tā, ka whai i nga mihini ta flexographic ki te tā kiriata kirihou (ko te nuinga o nga mihini ta flexographic e hanga ana i nga raina whakaputa me nga miihini whakakikorua maroke), engari me te whakaputa, ka whakatauritea ki te taarua whanui me te gravure. Ko te ta flexographic e whakamahia ana i roto i te whakaputa taonga, he maha nga rereketanga.Hei tauira: Ka taia te taakete whakangawari ki runga i te mata o te tïpako rite-roi.Mena he kiriata maramara, ka kitea te tauira mai i muri.I etahi wa he mea tika ki te taapiri i tetahi paparanga peita ma, ki te whakamahi ranei i te mahinga o roto.
② Whakamaramatanga o te tukanga o te tuhi whakamuri Ko te tuhinga o muri e pa ana ki tetahi tikanga taarua e whakamahi ana i te pereti taarua me te ahua whakamuri me te tuhinga hei whakawhiti i te mangumangu ki roto o te papanga ta maramara, kia kitea ai te ahua pai me te tuhinga ki mua. o te mea kua taia.
③ Nga Painga o Liyin
Ka whakatauritea ki te ta o te mata, he pai te ahua o te mea taia, he kanapa, he ataahua, he karaehe/kaore e memenge, he makuku me te kakahu-atete.Whai muri i te whakakotahitanga o te taapapa o te paparanga, ka pania te paparanga waituhi ki waenga i nga paparanga e rua o te kiriata, e kore e poke i nga taonga kua kohia.
Te whakahuihui i nga taonga whakangao kai
① Te tikanga whakahuihui makuku: Ka pania he paparanga wairewa-wairewa ki te mata o te papanga turanga (kiriata kirihou, konumohe konumohe), whakahuihui ki etahi atu mea (pepa, cellophane) na roto i te roera pehanga, ka whakamaroke ki te werawera. te kauhanga whakamaroke Ka noho hei membrane hiato.He pai tenei tikanga mo te takai kai maroke.
② Tikanga lamination maroke: tuatahi tono i te whakapiri whakarewa-whakarewa kia taurite ki runga i te tïpako, ka tukuna atu ki te kauhanga whakamaroke wera kia tino whakaeto te whakarewa, katahi ka lamina tonu ki tetahi atu paparanga kiriata.Hei tauira, ka whakakotahihia te kiriata polypropylene (OPP) ki etahi atu rawa ma te whakamahi i te tukanga lamination maroke i muri i te ta o roto.Ko nga hanganga angamaheni ko: te kiriata polypropylene biaxially (BOPP, 12 μm), te konumohe konumohe (AIU, 9 μm) me te kiriata polypropylene Torotoro kotahi (CPP, 70 μm).Ko te tukanga ko te whakamahi i te taputapu whakakikorua roera ki te whakakakahu rite te whakarewa i runga i te "puera whakapiri maroke" i runga i te papanga turanga, ka tukuna atu ki te kauhanga whakamaroke wera kia tino whakaeto te whakarewa i mua i te whakakikorua ki tetahi atu paparanga kiriata ma te whakamahi i te roera laminating.
③ Ko te tikanga whakahuihui tangohanga he tango i te polyethylene rewa rite arai mai i te wehenga o te pokepokea T, ka pehia ki roto i te roera whakawiri, ka ruia ki runga pepa, kiriata ranei mo te paninga polyethylene, ka tuku atu ranei i etahi atu kiriata mai i te waahanga whangai pepa tuarua.Whakamahia te polyethylene hei paparanga whakapiri mo te honohono.
④ Tikanga hiato rewa-wera: Ko te polyethylene-acrylate copolymer, te ethylene acid-ethylene copolymer, me te paraffin wax ka whakawerahia, ka rewa tahi, ka pania ki te tïpako, ka whakahuihui tonu ki etahi atu rauemi hiato ka whakamatao.
⑤Multi-apa Tangohanga tikanga whakahuihui
He momo kapia kirihou he rereke nga ahuatanga ka tukuna ma te maha o nga extruders ka tukuna ki roto i te pokepoke hei hanga kiriata.Ko tenei tukanga kaore e hiahiatia he whakapiri, he whakarewa pararopi ranei i waenga i nga paparanga, a kaore he kakara o te kiriata, he kino ranei te urunga o te whakarewa, e pai ana mo te takai kai me te roa o te oranga o te papa.Hei tauira, ko te hanganga whanui o LLDPE / PP / LLDPE he pai te maarama me te matotoru ko te tikanga 50-60μm.Mena he roa ake te oranga o te papa.Neke atu i te rima nga paparanga o nga kiriata taapiri-nui e hiahiatia ana, a ko te paparanga waenga he mea hanga mai i nga papanga teitei PA, PET me EVOH.
Te wa tuku: Maehe-13-2024
