He Kupu Whakataki Poto ki te Tukanga Hanga o ngā Ipu PET
Kupu Whakataki
Ko te Polyethylene Terephthalate, e mōhiotia whānuitia ana ko te PET, he momo kirihou kua noho hei mea nui i roto i te umanga takai. E mōhiotia ana mō tōna kaha, tōna māramatanga, me tōna āheinga ki te hangarua, e whakamahia whānuitia ana te PET hei hanga ipu mō ngā inu, ngā kai, ngā rongoā, me ētahi atu hua. Ka whakaratohia e tēnei blog he tirohanga poto mō te tukanga whakaputa ipu PET, mai i ngā rauemi mata ki te hua kua oti..
1. Te Hanga Rauemi Mata
Ka tīmata te tukanga whakaputa mā te hanga i te kapia PET. He pūmua te PET i hangaia mai i te waikawa terephthalic (TPA) me te ethylene glycol (EG). Ka pāngia ēnei matū e te tauhohenga pūmua hei hanga i ngā pire PET, koinei te rauemi mata matua mō te hanga ipu PET.
2. Te Hanganga o mua
Ko te taahiraa e whai ake nei ko te hanga i ngā preforms. Ko ngā preforms he wahi iti o te PET, he āhua ngongo whakamātautau, ā, ka pupuhihia i muri mai ki te āhua o tō rātou ipu whakamutunga. Ko te hanga i ngā preforms ko:
（1）Te whakamaroke i ngā pire PET: Ka whakamarokehia ngā pire PET hei tango i te makuku, ka pā pea tēnei ki te kounga o te hua whakamutunga.
（2）Te Hanga Werohanga: Ka whāngaihia ngā pirepire maroke ki roto i te mīhini hanga werohanga, ka rewahia, ka werohangahia ki roto i ngā pokepoke hei hanga i ngā āhua tuatahi. Kātahi ka whakamataohia ngā āhua tuatahi, ka tukuna atu i ngā pokepoke.
3. Te Whakapūtanga Pupuhi
Ko te whakahāngai pupuhi te tukanga e hurihia ai ngā āhua o mua hei ipu PET whakamutunga. E rua ngā momo matua o ngā tukanga whakahāngai pupuhi: te whakahāngai pupuhi totoro werohanga (ISBM) me te whakahāngai pupuhi extrusion (EBM).
Te Whakarewatanga Pupuhi Totoro Werohanga (ISBM):
（1）Te whakamahana: Ka whakamahanatia ngā preforms ki tētahi pāmahana kua whakaritea kia ngāwari ai.
（2）Te totoro me te pupuhi: Ka whakatakotoria te porowhita wera ki roto i tētahi pokepokea ai. Ka totorohia te tokotoko totoro ki roto i te porowhita, ka totorohia kia roa. I te wā kotahi, ka pupuhihia te hau pēhanga teitei ki roto i te porowhita, ka whakawhanuitia kia uru ki te āhua o te pokepokea ai.
（3）Te Whakamatao: Ka whakamataohia te ipu hou kua hangaia, kātahi ka tangohia mai i te pokepokea ai.
Te Whakapūtanga Pupuhi Whakaputa (EBM):
（1）Te Whakaputa: Ka whakapūwerohia te PET whakarewa ki roto i tētahi ngongo, e kiia nei ko te parison.
（2）Te pupuhi: Ka whakatakotoria te parison ki roto i tētahi pokepokea ai, ka pupuhihia ki te hau kia rite ki te āhua o te pokepokea ai.
（3）Te Whakamatao: Ka whakamataohia te ipu, ka tukuna atu i te pokepokea ai.
4. Te Mana Kounga me te Whakamātautau
He mea nui te whakahaere kounga puta noa i te tukanga whakaputa kia tutuki ai ngā paerewa e hiahiatia ana e ngā ipu PET. He maha ngā whakamātautau e whakahaerehia ana hei tirotiro i ngā āhuatanga pēnei i te kaha, te mārama, me te ātete ki te turuturu. Ka whakamahia ngā pūnaha aunoa me ngā tirotiro ā-ringa hei tautuhi me te whakatika i ngā hapa.
5. Te Tapanga me te Tākai
Kia oti ngā ipu te whakamātautau kounga, ka neke atu rātou ki te wāhanga tapanga me te takai. Ka whakamahia ngā tikanga rerekē hei tāpiri tapanga, pērā i ngā tapanga piri, ngā ringaringa whakaitiiti, te tā tika rānei. Kātahi ka tākaihia ngā ipu kua tohua, ā, ka whakaritea mō te tohatoha.
Whakamutunga
He ranunga whakamīharo o te matū me te hangarau te tukanga whakaputa ipu PET. Mai i te hanganga o ngā rauemi mata ki te takai whakamutunga, ka hangaia ia taahiraa kia tino tika hei whakaputa ipu kounga teitei, pono, me te haumaru. Nā te maha o ngā whakamahinga me te āheinga ki te hangarua o te PET, he mea pai tēnei i roto i te maha o ngā ahumahi, e whakaata ana i te hiranga o te rauemi i roto i ngā otinga takai hou.
Ngā Whakaaro Whakamutunga
Mā te mārama ki te tukanga whakaputa ipu PET, ehara i te mea ka kitea te uaua me te tika o te mahi, engari ka kitea anō hoki te hiranga o te auahatanga me te pumau i roto i te umanga tākai. I te whanaketanga o te hangarau, ka taea e tātou te tumanako ka piki ake te whai huatanga me te pānga ki te taiao o te whakaputa ipu PET.