He kēne inu PET rarawe me te pito tuwhera ngāwari
Te tukanga whakaputa o tētahiKēne inu PEThe tukanga mahi paerewa, maha-taahiraa e whakakotahi ana i te whakarite rauemi, te hanga, te whakaoti, me te whakahaere kounga. Kei raro nei he whakamārama taipitopito, taahiraa-i-te-taahiraa, tae atu ki ngā hangarau matua me ngā arowhai kounga i whakaritea mō ngā tono tākai inu:
| Wāhanga Whakaputa | Ngā Tukanga Matua | Ngā Taipitopito Hangarau me ngā Whakaritenga Kounga | Kaupapa |
| 1. Te Whakarite Rauemi Mata | -Te whiriwhiri rauemi me te whakamaroke-Te whakaranu matū (whiringa) | -Reiti PET wahineNgā pire kai-kai e tutuki ana i ngā paerewa FDA/EFSA (kāore he BPA, he phthalates).-whakaurunga rPETWhakaranua ngā pire PET hangarua (30–100% te ihirangi) me te PET tauhou hei oranga tonutanga; kia tino purea te rPET ki ngā paerewa kai.Te whakamarokeKa whakamaroketia ngā pire PET i te 120–160°C mō ngā hāora 4–6 hei whakaiti i te nui o te makuku ki raro i te 0.02% (ka ārai i te hanganga o ngā mirumiru i te wā e hangaia ana).-Ngā Tāpiringa (whiringa kore)Whakaranua ngā whakau UV (mō ngā inu e pāngia ana e te mārama) ngā puranga tae matua rānei (mō ngā kēne mātotoru) hei hanga i ngā pirepire. | Whakakorea ngā hapa i puta mai i te makuku; kia mau te haumaru o ngā rauemi me te ōritetanga mō te pa ki te kai. |
| 2. Te Hanga Werohanga Whakamua | -Te whakakoi werohanga o ngā preforms PET-Te whakamatao me te kuti | -TukangaKa rewahia ngā pire PET maroke ki te 260–280°C i roto i te mīhini hanga werohanga, kātahi ka werohangahia ki roto i ngā pokepoke hanga-mua (he hua iti, āhua-ngongo whakamātautau te hanga-mua, he kaki miro).-Ngā pokepokea aiNgā pokepokea tika me ngā tau kōhao e rite ana ki te kaha whakaputa (hei tauira, ngā pokepokea 96-kōhao mō te whakaputa nui-rahi).-WhakamataoKa whakamataohia wawetia ngā preforms (10–20 hēkona) ki te wai matao hei pupuri i te pumau o te āhua.Te tapahiTangohia te uira taikaha mai i ngā kaki o te miro kia ōrite ai te rahi. | Whakaputahia he āhua ōrite—ka taea e te turanga o te PET te hanga me te kaha. |
| 3. Whakatōtōhia te Hanga Pupuhi (Taumata Matua) | -Te whakamahana i mua i te āhua-Totoro me te pupuhi i te tauira-Whakamatao whakamutunga | -Te whakamahanaKa whakamahanahia ngā preforms ki te 90–110°C (te pāmahana whakawhiti karāhe o te PET) i roto i te oumu infrared; ka tiakina te rohe kaki mai i te wera hei pupuri i te pumau o te miro.Totoro: Ka panaia te porowhita wera ki runga ake i te poutū e te tokotoko totoro kia 2–3 ngā wā o tōna roa taketake (ka whakarei ake i te aronga ngota mō te kaha).-Te whakakoi pupuhi: Ka werohia te hau pēhanga teitei (20–40 pae) hei whakawhanui i te āhua kua totorohia ki te kōhao o te pokepokea ai te kēne, kia puta ai te āhua whakamutunga o te kēne (porotaka, whakarara, ritenga rānei).-WhakamataoKa whakamataohia te pokepokea ki te wai hei whakapakeke i te kēne PET i roto i te 2–5 hēkona. | Hangaia te tinana whakamutunga o te kēne PET me ngā ine tika, te ātete ki te pēhanga, me te mārama hoki. |
| 4. Te Tukatuka Tuarua me te Whakaoti | -Te kuti me te tango i ngā paru-Te maimoatanga mata (whiringa kore)-Te tā me te tapanga-Huinga taupoki | -Te tapahiTapahia te taha o runga o te kēne kia rite te teitei mō te tāutanga o te taupoki.Te maimoatanga mata: Te maimoatanga korona (te whakanui ake i te taumahatanga o te mata) hei whakarite i te piri o te waituhi mō te tānga; te paninga matte/hukapapa rānei mō ngā waitohu kounga teitei.Te tāngaWhakamahia ngā waituhi haumaru-kai, ka taea te whakamaroke e te UV mō ngā whakairoiro whakamārama-teitei, ngā waitohu, me ngā mōhiohio tutuki i ngā whakaritenga (hei tauira, ngā tapanga hangarua, ngā tuhinga reo maha).Huinga taupokiTāpirihia ngā taupoki ngāwari-tuwhera (EOE) me ngā taupoki tīwiri ka taea te hiri anō—kia mau te hiri ā-hau kia tutuki ai ngā whakaritenga mō te roa o te oranga o te inu. | Whakapai ake i te āhua, te waitohu, me te mahi; me whakarite kia rite te kēne mō te whakakī. |
| 5. Te Mana Kounga me te Whakamātautau | -Tirotiro i ngā āhuatanga-Whakamātautau ātete pēhanga-Whakamātautau turuturu-Whakamātautau haumaru kai | -Tirotiro i ngā āhuatangaManatokohia te teitei o te kēne, te whānui, me te matotoru o te pakitara (ātete ±0.1mm) mā te whakamahi i ngā ine aunoa.Whakamātautau pēhanga: Whakatakotoria ngā kēne ki te pēhanga ā-roto 3–4 pae (mō ngā inu warowaihā) kia kore ai e rerekē te āhua, e pakaru rānei.Whakamātautau turuturuWhakamahia he taputapu kite turuturu korehau, he taputapu kite turuturu rānei hei whakaū i te pai o te hau (he mea nui mō te hou o te inu).Whakamātautau haumaru kaiWhakamātauria ngā monomer toenga, ngā konganuku taumaha, te hekenga kirihou moroiti rānei (kia tutuki ki ngā herenga FDA/EFSA). | Whakakorehia ngā hua hapa; me whakarite kia tutukihia ngā paerewa haumaru kai me ngā paerewa mō te takai. |
| 6. Tākai me te Putunga | -Te whakarōpū me te whakarārangi-Te whakatakoto papa me te rokiroki | -Te whakarōpūtangaKa tākaihia ngā kēne ki roto i ngā pēke kirihou, i ngā kātene rānei hei ārai i ngā karawarawa i te wā e kawe ana.Te whakapapaWhakamahia ngā mīhini whakapūtā aunoa hei whakarārangi i ngā kātene; takaihia ngā pāreti ki te kiriata totoro hei pumau.RokirokiPenapena ki roto i te whare putunga maroke, hauhautanga (te pāmahana 15–25°C, te haumākū <60%) hei karo i te pirau o te PET. | Whakapaia ngā kēne kua oti hei tuku ki ngā whare whakakī inu; kia mau tonu te kounga o te hua i mua i te whakamahinga. |
