Wahi a nā helu helu i loaʻa, kokoke i ka 2,000 tons i kēlā me kēia mahina i ka 2023 ka mana hana o ka papa wai wai ma Kina, he piʻi nui ia i hoʻohālikelike ʻia i ka 800 tons i kēlā me kēia mahina i ka makahiki i hala.Eia naʻe, ua helu ʻia kēlā mana no kahi hapa liʻiliʻi ma ka ʻoihana pepa pepa o Kina.ʻO ka papa pale wai ma Kina ka mea nui no ka hoʻopili ʻana i ka meaʻai, a kūʻai nui ʻia i ka mākeke o waho.E hoʻomau i ka ulu olakino i ka wā e hiki mai ana ma muli o nā koho kulekele ma ka home a ma waho.
Mai kahi a mākou e kū nei, eia nā ʻano koʻikoʻi o ka papa pale wai.
ʻAʻole ʻoluʻolu nā mea kūʻai aku i ka maikaʻi o ka pale maʻamau.Ke ʻimi nei lākou i nā hoʻonā i hoʻopaʻa ʻia e hiki ai i ka hoʻokō ʻana i ka hoʻopihapiha maikaʻi loa i nā noi like ʻole.Pono ka papa i ka wai a me ka momona me nā waiwai i hoʻopili ʻia e like me ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa (MVTR) a i ʻole ka haʻahaʻa o ka oxygen transmission rate (OTR), i koi ʻia i ke koi ʻana i nā hoʻohana hope.No ka laʻana, ʻo ka OTR, ʻoi aku ka haʻahaʻa e like me 0.02 cm3/m2/lā i kēia manawa, makemake ʻia i loko o ka ʻeke hua maloʻo.Pēlā nō, pono ka hoʻopili ʻana o nā mea pauka i kahi MVTR haʻahaʻa.Hiki i ka hoʻopuehu acrylic kuʻuna ke hāʻawi i nā waiwai MVTR ma waena o 100 a 200g/m 2 / lā, akā hiki i ka hoʻopuehu High Performance Barrier (HPB) ke hāʻawi i kahi waiwai MVTR ma lalo o 50g/m 2 / lā a i ʻole 10g/m 2 / lā.
Ua ʻike ʻia ka hoʻololi mālie ʻana i ka HPB mai ka plastic ma ka hoʻonui ʻana i ka hoʻohana ʻana i ka papa HPB ma ka pae ʻoihana.ʻAʻole like me ka hoʻopili meaʻai i ʻike nui i ka palekana, ʻo ka ʻoihana ʻoihana e hoʻoikaika i ka hana pale a me ke kumukūʻai hana.Hiki ke hoʻokaʻawale ʻia ka pāpaʻi HPB i loko o ka hoʻopili ʻana i ka nui o ka ʻoihana a me ka hoʻopili huahana kemika i kēlā me kēia lā.ʻO ka ʻeke ʻeke piha ʻoihana e pili ana i nā ʻeke valve āpau i hoʻohana ʻia no ka hoʻopaʻa ʻana i nā mea granular, e like me ka sima a me nā pauka kemika.Loaʻa nā ʻeke kīpē pepa i ka nui o 25 kg a i ʻole 50 kg.ʻO ka pale wai, ma ke ʻano he ʻokoʻa hoʻomau i ka plastic, hiki ke hōʻoia i ka hoʻopaʻa ʻana o ka wela a me ka waiwai MVTR i ke kākoʻo maikaʻi ʻana i ka hana ʻana o nā ʻeke pahu pepa i ka hana wikiwiki.ʻO nā hui paionia e hāpai nei i ka hoʻomohala ʻana i nā huahana HPB ʻo Alou, BASF, a me Covestro.Hiki i ka HPB ke hāʻawi i kahi hana pale i makemake ʻia akā loaʻa i kāna pōmaikaʻi ke kālepa-offs.ʻO ke kumukūʻai hana kekahi o nā mea pale o ka ulu ʻana o ka mākeke.ʻO ka ʻeke huahana kemika i kēlā me kēia lā e pili ana i ka ʻeke o nā huahana e like me ka detergent, shampoo, a me ka mālama ʻili, ʻo ka hapa nui o ia mau ʻeke he mau haneli a i ʻelua kilokani.ʻOi aku ka koi ʻana o ka hoʻopili huahana kemika i kēlā me kēia lā ma ke ʻano o ka hana pale ma mua o nā ʻeke valve.Pono ia i nā waiwai koʻikoʻi e like me ka hoʻomalu ʻana i ka haʻahaʻa, ka ea a me ka pale māmā.
Ma muli o ka hiki ʻole ke biodegradable nā plastics, ʻike ʻia nā mea hou me ka makemake e nā mea kūʻai aku eco-conscious a me nā hōʻailona, ʻo ka hapa nui o ia mau mea he mau pale bio-based.No hoʻokahi makahiki, ua hoʻokumu kekahi mau mea hana i kā lākou huahana dispersion bio-based, e hoʻolaha ana i ka noi ma nā ʻoihana like ʻole, ʻoi aku ka ʻoihana meaʻai.Mai ka hoʻopuehu ʻana i ka paʻi ʻana i nā inks, ʻo ka ʻike bio-based o nā huahana ma waena o 30% a me 90%.ʻO ka hoʻokomo ʻana i nā mea nanocellulose i hoʻololi hou i ka waihona o nā mea pale bio-based.ʻO nā hui e hāʻawi nei i nā mea hoʻoheheʻe biodegradable, ʻo Basf, Covestro, Siegwerk, Wanhua, Shengquan, Qihong, Tangju a me nā mea ʻē aʻe.Ua hana ʻia nā noiʻi ma nā noi a me nā ʻoihana he nui, ʻo ia hoʻi ka hana pepa, ka uhi ʻana, nā kemika i kēlā me kēia lā a me nā pā uila.Eia nō naʻe, ʻo ka hapa nui o nā noiʻi i manaʻo ʻia he pāpaʻu i kēia pae, pono ʻia ka noiʻi hohonu a me nā noiʻi.Pono ka noiʻi kumu a me ka hoʻohana pono ʻana e pili kokoke i kekahi i kekahi.Pono ke aʻo ʻana a me ka hoʻokolokolo ʻana ma mua o Cellulose Nanofibrils (CNF) a i ʻole Microfibrillated cellulose (MFC), i mea e hāʻawi ai i nā koho hou aʻe i nā mea kūʻai aku e koho i ka mea hiki ke kākoʻo maikaʻi i kā lākou koi ʻana.
ʻO 80% o ka noi o ka huahana paʻa paʻa mai nā mākeke o Kina, e like me ʻEulopa, ʻAmelika ʻAmelika a me Australia.Ua hoʻonui nui ʻia ka noi o ka papa pale wai i ka mākeke Australia i nā makahiki i hala.Ua kōkua pū ke kulekele hoʻopaʻa paʻa ma Hong Kong i ka ulu ʻana o ka papa pale wai.ʻO kona koi kūloko ma Kina ua nāwaliwali i kēia manawa.ʻAʻole hilinaʻi wale ka hoʻomohala ʻana o ka dispersion coating i ka hoʻoikaika ʻana o nā brand akā pū kekahi i nā kulekele ʻoihana.I ka makahiki i hala iho nei, ua hoʻololi nā luna kūloko ma Kina mai ka hoʻolaha ʻana i ka plastic biodegradable i nā mea ʻokoʻa like ʻole i ka plastic-free, ʻoi aku ka mea hiki ke hana hou ʻia a me nā mea hou.
Ka manawa hoʻouna: Apr-19-2024