III. Te hoahoa hanganga o ngā kapu pepa
A. Hangarau paninga o roto o ngā kapu pepa
1. Whakapai ake i ngā āhuatanga ārai wai me te whakamarumaru
Ko te hangarau paninga o roto tētahi o ngā hoahoa matua o ngā kapu pepa, ka taea te whakarei ake i te mahi ārai wai me te wera o ngā kapu.
I roto i te hanga kapu pepa tuku iho, ka pania he paparanga polyethylene (PE) ki roto i te kapu pepa. He pai te mahi ā-wai o tēnei paninga. Ka taea e ia te ārai i ngā inu kei uru ki roto i te kapu pepa. Ā, ka taea hoki e ia te ārai i tekapu pepakei pakaru, kei hē rānei te āhua. I taua wā anō, ka taea hoki e te paninga PE te whakarato i tētahi pānga whakamarumaru. Ka taea e ia te ārai i ngā kaiwhakamahi kei pāngia e te wera nui rawa i te wā e pupuri ana i ngā kapu.
Haunga te paninga PE, kei reira anō ētahi atu rauemi paninga hou e whakamahia whānuitia ana i roto i ngā kapu pepa. Hei tauira, ko te paninga waipiro polyvinyl (PVA). He pai te ātete ki te wai me te turuturu. Nō reira, ka taea e ia te pupuri i te roto o te kapu pepa kia maroke. Hei tāpiri, he tino mārama te paninga polyester amide (PA) me te mahi hiri wera. Ka taea e ia te whakapai ake i te kounga o te āhua me te mahi hiri wera o ngā kapu pepa.
2. Te Whakamana i te Haumaru Kai
Hei ipu e whakamahia ana hei pupuri kai me inu, me tutuki te paninga o roto o ngā kapu pepa i ngā paerewa haumaru kai. Mā tēnei ka taea e te tangata te whakamahi haumaru.
Me whai tiwhikete haumaru kai te rauemi paninga o roto. Pērā i te tiwhikete FDA (Food and Drug Administration), te tiwhikete rauemi pa kai a te EU, me ētahi atu. Mā ēnei tiwhikete ka kore te rauemi paninga o roto i te kapu pepa e poke i te kai me te inu. Me whakarite hoki kia kore e tukuna he matū kino, kia pai ai te hauora me te haumaru o ngā kaiwhakamahi.
B. Te hoahoa hanganga motuhake o ngā kapu pepa
1. Hoahoa whakapakari o raro
Ko te hoahoa whakapakari o raro o tekapu pepahei whakapai ake i te kaha hanganga o te kapu pepa. Mā tēnei ka ārai i te hinga o te kapu pepa i te wā e whakakī ana, e whakamahia ana hoki. E rua ngā hoahoa whakakaha o raro e whakamahia whānuitia ana: he raro kua pikohia, he raro kua whakakahangia.
Ko te raro whakapiko he hoahoa i hangaia mā te whakamahi i tētahi tukanga whakapiko motuhake i te raro o tētahi kapu pepa. He maha ngā paparanga pepa e herea ana kia hanga he hanganga raro pakari. Mā tēnei ka taea e te kapu pepa te tu atu i tētahi nui o te kaha ā-papa me te pēhanga.
Ko te raro whakapakari he hoahoa e whakamahi ana i ngā kakano, i ngā rauemi motuhake rānei i te raro o te kapu pepa hei whakanui ake i te kaha o te hanganga. Hei tauira, mā te whakanui ake i te matotoru o te raro o te kapu pepa, mā te whakamahi rānei i tētahi rauemi pepa pakari ake. Ka taea e ēnei te whakarei ake i te kaha o te raro o te kapu pepa me te whakapai ake i tōna ātete ki te pēhanga.
2. Te whakamahinga o te pānga ipu
I te nuinga o te wā ka whakatakotoria ngā kapu pepa ki roto i ngā ipu i te wā e kawe ana, e rongoa ana hoki. Ka taea e tēnei te penapena wāhi, ka whakapai ake hoki i te whai huatanga. Nō reira, ka whakamahia ētahi hoahoa hanganga motuhake ki ngā kapu pepa. Ka taea e tēnei te whakatutuki i te pānga ipu pai ake.
Hei tauira, mā te hoahoa āhua o te kapu pepa ka taea te hipoki i te raro o te kapu i te tihi o te kapu pepa e whai ake nei. Mā tēnei ka ngāwari te hono o ngā kapu pepa ki a rātou anō, ka penapena wāhi hoki. Hei tāpiri, mā te hoahoa tika o te ōwehenga teitei me te whānui o ngā kapu pepa ka taea hoki te whakapai ake i te pumau o te whakarārangi kapu pepa. Mā tēnei ka ārai i ngā āhuatanga kore pumau i te wā o te whakarārangi.
Mā te hangarau paninga o roto me te hoahoa hanganga motuhake o ngā kapu pepa ka taea te whakapai ake i te mahi me te mahi. Mā te auahatanga me te whakapai tonu, ka taea e ngā kapu pepa te whakatutuki pai ake i ngā hiahia o te tangata mō ngā rauemi e pā ana ki te kai. Heoi anō, ka taea e ia te whakarato i tētahi wheako kaiwhakamahi haumaru, watea, me te taiao.
