Pehea e koho ai a kūʻai
I ke kūʻai ʻana i kahi kiʻi ʻoniʻoni a i ʻole ka ʻili plastik, e nānā pono i kahi inoa kikoʻī a i ʻole ka hoʻolālā kemika, a e makaʻala inā he inoa Pelekane wale nō ka huahana a ʻaʻohe hōʻailona Kina.Eia kekahi, e koho pono i nā huahana i kaha ʻia me nā huaʻōlelo "no ka meaʻai".
ʻElua ʻano nui o ke kiʻi ʻoniʻoni: polyethylene (PE) a me polypropylene (PP).ʻAʻole nui ka ʻokoʻa kumukūʻai ma waena o nā huahana ʻelua, akā ʻoi aku ka maikaʻi o ka polypropylene (PP) i ka hoʻōki ʻana i ke komo ʻana o ka momona.
I ke kūʻai ʻana i ke kiʻi ʻoniʻoni, ʻōlelo mua ʻia e kūʻai i kahi kiʻiʻoniʻoni pili ponoʻī i hana ʻia me ka polyethylene (PE), ʻoi aku ka maikaʻi o ka mālama ʻana i ka ʻiʻo, nā huaʻai, a me nā mea ʻē aʻe, no ka mea ʻo PE ka mea palekana ma ke ʻano o ka palekana.No ka lōʻihi o ke ola ʻana, ua ʻōlelo ʻia ka polyvinyl chloride (PVDC) no ka mea ʻoi aku ka maikaʻi o ka mālama ʻana i ka makū a ʻoi aku ka lōʻihi o ke ola o nā ʻano kiʻiʻoniʻoni pili ʻekolu.ʻO ka Polyvinyl chloride (PVC) pili kiʻi ʻoniʻoni ke koho ʻia e nā poʻe he nui no ka maikaʻi o ka ʻike, viscosity, elasticity a me ke kumukūʻai haʻahaʻa, akā pono e hoʻomaopopo ʻia ʻaʻole hiki ke hoʻohana ʻia no ka mālama ʻana i ka meaʻai momona no ka mea he resin i haku ʻia me ka polyvinyl chloride. resin, plasticizer a me antioxidant, ʻaʻole ia he mea make.Eia nō naʻe, he mea ʻawaʻawa nā plasticizers a me nā antioxidants i hoʻohui ʻia.ʻO nā plasticizers i hoʻohana ʻia i ka plastik PVC no ka hoʻohana ʻana i kēlā me kēia lā ʻo ka dibutyl terephthalate a me ka dioctyl phthalate, he mau mea ʻona.He hopena pōʻino loa kēia i ka ʻōnaehana endocrine kanaka a hiki ke hoʻopau i ka metabolism hormone o ke kino.ʻO ke kēpau stearate, he antioxidant polyvinyl chloride, he mea ʻawaʻawa nō hoʻi.ʻO nā huahana PVC i loaʻa nā antioxidants paʻakai kēpau e hoʻoheheʻe i ke alakaʻi ke hoʻopili ʻia me ka ethanol, ether a me nā mea hoʻoheheʻe ʻē aʻe.ʻO ka PVC i loaʻa i nā paʻakai kepau i hoʻohana ʻia e like me ka meaʻai a me nā donuts, nā keke palai, nā iʻa palai, nā huahana ʻiʻo i kuke ʻia, nā keke a me nā meaʻai ʻai e hui ai, e hoʻoheheʻe ʻia nā molekala alakaʻi i loko o ka momona, no laila ʻaʻole hiki iā ʻoe ke hoʻohana i nā ʻeke plastik PVC no ka meaʻai me ka aila.Eia kekahi, ʻaʻohe hoʻomehana microwave, ʻaʻohe hoʻohana wela kiʻekiʻe.No ka mea e hoʻoheheʻe lohi nā huahana plastik PVC i ke kinoea hydrogen chloride i nā mahana kiʻekiʻe, e like me ka 50 ℃, a he mea ʻino kēia kinoea i ke kino kanaka, no laila ʻaʻole pono e hoʻohana ʻia nā huahana PVC e like me ka meaʻai.
Ka laulā o ka hoʻohana
Hōʻike nā hoʻokolohua ʻo 100 grams o ka leek i ʻōwili ʻia i loko o ka ʻili plastik, 24 mau hola ma hope o kāna ʻike huaʻai C he 1.33 mg ka nui ma mua o ka wā ʻaʻole i ʻōwili ʻia, a ʻoi aku ka 1.92 mg no ka hoʻopaʻapaʻa a me nā lau lettuce.Eia naʻe, ʻokoʻa loa nā hopena hoʻokolohua o kekahi mau mea kanu.Ua mālama ʻia ka 100 grams o ka radish i ʻōwili ʻia i loko o ka ʻili plastik no hoʻokahi lā, a ua hoʻemi ʻia kona ʻike huaʻai C e 3.4 mg, ʻo ka bean curd e 3.8 mg, a mālama ʻia ka kukumba no hoʻokahi lā a me hoʻokahi pō, a ua like ka nalowale o kāna huaora C me ka. 5 ʻāpala.
ʻO ka meaʻai i kuke ʻia, ka meaʻai wela, ka meaʻai momona, ʻoi aku ka ʻiʻo, ʻoi aku ka maikaʻi o ka hoʻohana ʻole ʻana i ka waiho ʻana i ka ʻiʻo.Wahi a ka poʻe akamai, i ka wā e hoʻopili ai kēia mau meaʻai me ka kiʻiʻoniʻoni pili, hiki i nā kinikona i loko o ka mea ke hoʻoheheʻe maʻalahi a hoʻoheheʻe ʻia i loko o ka meaʻai, hiki ke hōʻino i ke olakino.ʻO ka hapa nui o nā kiʻi ʻoniʻoni i kūʻai ʻia ma ka mākeke i hana ʻia mai ka vinyl masterbatch like me nā ʻeke plastik maʻamau.ʻO kekahi mau mea paʻi kiʻiʻoniʻoni he polyethylene (PE), ʻaʻole i loaʻa nā plasticizers a palekana i ka hoʻohana ʻana;ʻO nā mea'ē aʻe he polyvinyl chloride (PVC), ka mea e hoʻokomo pinepine i nā stabilizers, lubricants, auxiliary processors a me nā mea'ē aʻe e hiki ke hōʻeha i ke kanaka.No laila, pono ʻoe e makaʻala i ke koho ʻana.
Ka manawa hoʻouna: Mar-16-2022