whitiki kānawehi nekeneke i roto i te rauemi waihanga tino whakamahia nuitia rite pareaku me nairona rua ngā kāwai. I roto ia ratou, kua wehea pareaku me nairona ki ngā momo rerekē.

Pareaku: Hua ingoa pareaku, he kua polyethylene terephthalate ingoa pūtaiao diester, haapotohia rite PET. Pareaku e te painga o te ātete wera pai, deformation iti, e kore ngāwari ki te takanga mai makuku, kaha tiketike. Ai te miro pareaku rite ki tona mahi taketake, wehea ki te kaha teitei (arā, momo noa), uara tawhiti nui te na'ina'iraa iti, momo na'ina'iraa iti, momo na'ina'iraa iti.

Nairona: hokohoko ingoa nairona, nairona 6 me te nairona 66, nairona wehea ki e rua momo. Ngaiaku 6 Ko ingoa pūtaiao polycaprolactam, haapotohia rite PA6, ko PA66 ingoa pūtaiao adipamide polycaprolactam, PA66 haapotohia. painga whānui o te nairona ko te kaha nui, rohirohi resistance o iti, kiato iti. Ko te drawback ko te makuku tiketike faahou, i haria ki te pānga taiao.