一、 Te tā i ngā rauemi tākai ngāwari kai
①Tikanga tā
Ko te taarua kai ngawari te nuinga o te taarua o te taarua me te taarua ngawari, whai muri ko te whakamahi i te miihini miihini flexographic ki te ta i te kiriata kirihou (te mihini ta flexographic me te miihini hiato maroke te nuinga he raina whakaputa), engari he maha nga rereketanga ka whakatauritea ki te taarua whanui me tānga flexographic whakamahia i roto i te whakaputa me te tā taonga. Hei tauira, ka mahia te whakaputanga taapitanga ngawari ki runga i te mata o te tïpako rite-roi. Mena he kiriata marama, ka kitea te tauira mai i te tuara, a, i etahi wa me taia he paparanga peita ma, ka whakamahia ranei te mahinga o roto.
②Te whakamaaramatanga o te mahinga o roto
Ko te ta o roto e pa ana ki tetahi tikanga taarua e whakamahi ana i te pereti taarua o te ahua ahua whakamuri ki te whakawhiti i te mangumangu ki te taha o roto o te papanga taaata marama, kia whakaatu ai te ahua ahua pai ki mua o te mea kua taia.
③Nga painga o Inia
Ka whakatauritea ki nga hua o te mata o te mata, ko nga hua o roto o roto he painga o te kanapa me te ataahua, te tae kanapa / te tere, te makuku me te kakahu parenga; Whai muri i te tatanga o roto, ka pania te paparanga waituhi ki waenga i nga papa e rua o te kiriata, e kore e poke i te takai.
二、 Ko te hiato o nga taonga whakangao kai
①Tikanga hiato mākū
Ko te paparanga o te whakapiri wai-wairewa ka pania ki te mata o te papanga turanga (kiriata kirihou, konumohe konumohe), ka whakakotahi ki etahi atu mea (pepa, cellophane) na roto i te roera pehanga, ka whakamarokehia ki te kiriata hiato ma te wera. hongere whakamaroke. E tika ana tenei tikanga ki te takai kai maroke.
②Tikanga pūhui maroke
Tuatahi, whakakakahu taurite i te whakapiri whakarewa-whakarewa ki runga i te tïpako, katahi ka tukuna atu ki roto i te hongere whakamaroke wera kia tino rewa te whakarewa, katahi ka whakahuihui ki tetahi atu paparanga kiriata. Hei tauira, ko te kiriata polypropylene totoro (OPP) ka whakakotahihia ki etahi atu rawa ma te tukanga hiato maroke i muri i te ta o roto. Ko te hanganga angamaheni ko: kiriata polypropylene biaxially (BOPP, 12μ m) Konumohe konumohe (AIU, 9μ m) Me te kiriata polypropylene totoro kotahi (CPP, 70μ m).Ko te tukanga ko te whakakakahu i te momo whakarewa "paura whakapiri maroke" i runga i te papanga turanga me te taputapu whakakikorua roera, katahi ka tukuna atu ki roto i te hongere whakamaroke wera kia tino rewa te whakarewa, ka whakahuihui ki tetahi atu paparanga kiriata me he roera hiato.
③Tikanga pūhui Tangohanga
Ko te polyethylene kua whakarewahia te ahua o te arai i puta mai i te wehenga o te pokepokea T ka pehia e te roera awhi ka toia ki runga i te pepa, kiriata ranei mo te paninga polyethylene, ka tukuna mai etahi atu kiriata mai i te waahanga whangai pepa tuarua, ka herea te polyethylene hei a paparanga here.
④Tikanga hiato wera-rewa
Ko te polyethylene-acrylate copolymer, te vinyl acid-ethylene copolymer me te paraffin ka whakamahana ka rewa ngatahi, ka pania ki runga i te papanga turanga, ka whakahuihui tonu ki etahi atu rauemi hiato ka whakamatao.
⑤Tikanga hiato-papa-maha tohanga
He maha nga momo kapia kirihou he rereke nga ahuatanga ka kohia ki roto i te pokepoke ma te maha o nga extruders hei hanga i tetahi kiriata hiato. Karekau tenei tukanga e whakamahi i nga piripiri me nga whakarewa pararopi i waenga i nga paparanga. Karekau he kakara rereke o te kiriata, karekau he urunga whakarewa kino. He pai mo te takai kai me te roa o te oranga o te papa. Hei tauira, he pai te maramatanga o te hanganga whanui LLDPE/PP/LLDPE, a ko te matotoru ko te tikanga 50-60μ m. Mena he roa ake te oranga o te papa, he mea tika kia neke atu i te rima nga paparanga o te peera teitei o te kiriata taapiri, me te paparanga waenga he papanga arai teitei PA, PET me EVOH.
Wā tuku: Maehe-07-2023
