He aha a PP Films?

NGĀ RAWA

He kirihou wera iti te utu o te polypropylene, te PP rānei, he mārama rawa, he kanapa rawa, he kaha hoki te kume. He teitei ake tōna ira rewa i te PE, ā, he pai mō ngā tono e hiahia ana kia whakahoromatatia i ngā pāmahana teitei. He iti ake hoki te kohu, he kanapa rawa hoki. Ko te tikanga, kāore ngā āhuatanga hiri wera o te PP i te rite te pai ki ērā o te LDPE. He pai ake hoki te kaha haehae o te LDPE, ā, he iti hoki te ātete ki te pānga i te pāmahana.

Ka taea te whakakorikori i te PP, ka hua ake he āhuatanga ārai hau pai ake mō ngā tono uaua e hira ai te roa o te ora o te hua.Ngā kiriata PPhe tino pai mō te whānuitanga o ngā tono ahumahi, kaihoko, me te motuka.

He mea hangarua katoa te PP, ā, he ngāwari te tukatuka anō hei hanga i ētahi atu hua mō ngā momo mahi maha. Heoi, kāore te PP e pirau i te āhua koiora, he rerekē ki te pepa me ētahi atu hua cellulose. He painga anō hoki, kāore ngā para PP e whakaputa i ngā hua paitini, kino rānei.

Ko ngā momo e rua tino nui ko te polypropylene kore-whakatakoto (CPP) me te polypropylene whakatakoto-rua (BOPP). He kanapa teitei ngā momo e rua, he tino pai ngā karu tirohanga, he pai, he tino pai rānei te mahi hiri wera, he pai ake te ātete wera i te PE, ā, he pai hoki ngā āhuatanga ārai makuku.

Ngā Kiriata Polypropylene Maka (CPP)

Ko te Polypropylene kore-whakatakoto (CPP) he iti ake te whakamahinga i te polypropylene whakatakoto-rua-axial (BOPP). Heoi, kei te piki haere te rongonui o te CPP hei whiringa pai rawa atu i roto i ngā momo takai ngāwari tuku iho me ngā tono kore-takai. Ka taea te whakarite i ngā āhuatanga kiriata kia tutuki ai ngā whakaritenga takai, mahi, me te tukatuka. I te nuinga o te wā, he nui ake te ātete ki te haehae me te pānga o te CPP, he pai ake te mahi pāmahana makariri me ngā āhuatanga hiri-wera i te BOPP.

Ngā Kiriata Polypropylene Aronga-rua (BOPP)

Ko te kiriata polypropylene whakahāngai rua, BOPP1 rānei, te mea nui rawa atu. He mea pai hei whakakapi i te cellophane, te pepa ware pi, me te pepa konumohe. Ka whakanui ake te whakahāngai i te kaha kume me te pakari, ka whakaiti i te roa (he uaua ake te totoro), ka whakapai ake i ngā āhuatanga whatu, ā, ka whakapai ake i ngā āhuatanga ārai kohu. I te nuinga o te wā, he kaha kume teitei ake te BOPP, he pakari ake te modulus, he iti ake te roa, he pai ake te ārai hau, ā, he iti ake te kohu i te CPP.

NGĀ TONO

E whakamahia ana te kiriata PP mō ngā mahi tākai maha pēnei i te hikareti, te monamona, te kai me ngā takai kai. Ka taea hoki te whakamahi mō te takai whakaitiiti, te rīpene whakakī, te nāpi me te takai parakore e whakamahia ana i roto i ngā mahi hauora. Nā te mea he āhua noa iho te ārai hau o te PP, he maha ngā wā ka pania ki ētahi atu pūmua pēnei i te PVDC, te kiriaku rānei, e tino whakapai ake ana i ōna āhuatanga ārai hau.

Nā te iti o te kakara, te ātete nui ki ngā matū me te kore e mimiti, he maha ngā momo PP e pai ana mō ngā tono takai i raro i ngā ture FDA.