ʻO ka hose, kahi mea hoʻopili kūpono a hoʻokele waiwai hoʻi, hoʻohana nui ʻia ma ke kahua o nā kemika o kēlā me kēia lā a kaulana loa. ʻAʻole hiki i kahi hose maikaʻi ke pale wale i nā mea i loko, akā hoʻomaikaʻi pū i ka pae huahana, a laila e lanakila ai i nā mea kūʻai aku no nā ʻoihana kemika o kēlā me kēia lā. No laila, no nā ʻoihana kemika o kēlā me kēia lā, pehea e koho ainā paipu palaki kiʻekiʻehe aha nā mea kūpono no kā lākou huahana?
ʻO ke koho ʻana a me ka maikaʻi o nā mea hana ke kī i ka hōʻoia ʻana i ka maikaʻi o nā hose, ka mea e hoʻopilikia pololei i ka hana ʻana a me ka hoʻohana hope ʻana o nā hose. ʻO nā mea hana o nā hose plastik e komo pū me ka polyethylene (no ke kino paipu a me ke poʻo paipu), polypropylene (uhi paipu), masterbatch, resin pale, ʻīnika paʻi, varnish, a pēlā aku. No laila, ʻo ke koho ʻana o kekahi mea e hoʻopilikia pololei i ka maikaʻi o ka hose. Eia nō naʻe, ʻo ke koho ʻana o nā mea hana e pili pū ana i nā mea e like me nā koi hoʻomaʻemaʻe, nā waiwai pale (nā koi no ka oxygen, ka mahu wai, ka mālama ʻana i nā mea ʻala, a pēlā aku), a me ke kūpaʻa kemika.
Koho ʻana o nā paipu: ʻO ka mea mua, pono e hoʻokō nā mea i hoʻohana ʻia i nā kūlana hoʻomaʻemaʻe kūpono, a pono e kāohi ʻia nā mea ʻino e like me nā metala kaumaha a me nā mea fluorescent i loko o ka pae i kuhikuhi ʻia. No ka laʻana, no nā hose i lawe ʻia aku i ʻAmelika Hui Pū ʻIa, pono e hoʻokō ka polyethylene (PE) a me ka polypropylene (PP) i hoʻohana ʻia i ke kūlana 21CFR117.1520 o ka US Food and Drug Administration (FDA).
Nā waiwai pale o nā mea: Inā ʻo nā mea o loko o ka ʻōpala o nā ʻoihana kemika o kēlā me kēia lā he mau huahana i maʻalahi loa i ka oxygen (e like me kekahi mau mea hoʻonaninani keʻokeʻo) a i ʻole he mea lele loa ka ʻala (e like me nā aila koʻikoʻi a i ʻole kekahi mau aila, waikawa, paʻakai a me nā kemika corrosive ʻē aʻe), pono e hoʻohana ʻia nā paipu co-extruded ʻelima papa i kēia manawa. No ka mea, ʻo ka permeability oxygen o ka paipu co-extruded ʻelima papa (polyethylene/adhesive resin/EVOH/adhesive resin/polyethylene) he 0.2-1.2 mau ʻāpana, ʻoiai ʻo ka permeability oxygen o ka paipu polyethylene single-layer maʻamau he 150-300 mau ʻāpana. I loko o kekahi manawa, ʻo ka nui o ka pohō kaumaha o ka paipu co-extruded i loaʻa ka ethanol he mau ʻumikūmālua mau manawa haʻahaʻa ma mua o ka paipu single-layer. Eia kekahi, ʻo EVOH kahi copolymer ethylene-vinyl alcohol me nā waiwai pale maikaʻi loa a me ka paʻa ʻana o ka ʻala (hoʻokō ʻia ka hopena maikaʻi loa ke 15-20 microns ka mānoanoa).
ʻO ke kūpaʻa o nā mea: He ʻokoʻa nā koi o nā ʻoihana kemika o kēlā me kēia lā no ke kūpaʻa o nā hose, no laila pehea e loaʻa ai ke kūpaʻa i makemake ʻia? ʻO ka polyethylene i hoʻohana pinepine ʻia i nā hose, ʻo ia ka polyethylene haʻahaʻa haʻahaʻa, ka polyethylene kiʻekiʻe, a me ka polyethylene haʻahaʻa linear. I waena o lākou, ʻoi aku ka maikaʻi o ke kūpaʻa o ka polyethylene kiʻekiʻe ma mua o ka polyethylene haʻahaʻa, no laila hiki ke hoʻokō ʻia ke kūpaʻa i makemake ʻia ma ka hoʻoponopono ʻana i ka lakio o ka polyethylene kiʻekiʻe/polyethylene haʻahaʻa.
Ke kūpaʻa kemika o nā mea: ʻOi aku ka maikaʻi o ke kūpaʻa kemika o ka polyethylene kiʻekiʻe ma mua o ka polyethylene haʻahaʻa.
Ke kūpaʻa ʻana o nā mea i ka wā ʻino: No ka hoʻomalu ʻana i ka hana pōkole a lōʻihi paha o nā hose, pono e noʻonoʻo ʻia nā mea e like me ke ʻano, ke kūpaʻa ʻana i ke kaomi/hāʻule ʻana, ka ikaika o ke sila ʻana, ke kūpaʻa ʻana i ka nahā ʻana o ke kaiapuni (ka waiwai ESCR), ka ʻala a me ka nalowale ʻana o nā mea hana.
Koho ʻana o ka masterbatch: He kuleana koʻikoʻi ko Masterbatch i ka kaohi ʻana i ka maikaʻi o nā hoses. No laila, i ke koho ʻana i ka masterbatch, pono e noʻonoʻo nā ʻoihana mea hoʻohana inā he maikaʻi kona dispersibility, kānana a me ke kūpaʻa wela, ke kūpaʻa ʻana i ka wā a me ke kūpaʻa huahana. I waena o lākou, he mea nui loa ke kūpaʻa huahana o ka masterbatch i ka wā e hoʻohana ai i nā hoses. Inā kūlike ʻole ka masterbatch me ka huahana i loko, e neʻe ke kala o ka masterbatch i loko o ka huahana, a he koʻikoʻi loa nā hopena. No laila, pono e hoʻāʻo nā ʻoihana kemika i kēlā me kēia lā i ke kūpaʻa o nā huahana hou a me nā hoses (nā hoʻāʻo wikiwiki ma lalo o nā kūlana i kuhikuhi ʻia).
ʻAno o ka varnish a me ko lākou ʻano: Ua māhele ʻia ka varnish i hoʻohana ʻia no nā hoses i ke ʻano UV a me ke ʻano hoʻomaloʻo wela, hiki ke hoʻokaʻawale ʻia i ka ʻili ʻālohilohi a me ka ʻili matte i ke ʻano. ʻAʻole hāʻawi wale ka Varnish i nā hopena ʻike nani, akā pale pū kekahi i nā mea o loko a loaʻa kahi hopena o ka pale ʻana i ka oxygen, ka mahu wai a me ka ʻala. Ma ke ʻano laulā, he maikaʻi ka hoʻopili ʻana o ka varnish ʻano hoʻomaloʻo wela i ka hoʻopaʻa wela a me ka paʻi pale silika, ʻoiai ʻoi aku ka maikaʻi o ka ʻōlinolino o ka varnish UV. Hiki i nā ʻoihana kemika o kēlā me kēia lā ke koho i ka varnish kūpono e like me nā ʻano o kā lākou huahana. Eia kekahi, pono i ka varnish i hoʻōla ʻia ke hoʻopili maikaʻi ʻia, ʻili laumania me ka ʻole o ka lua, ke kūpaʻa pelu, ke kūpaʻa ʻaʻahu, ke kūpaʻa i ka palaho, a ʻaʻohe hoʻololi ʻana i ka wā e mālama ai.
Nā koi no ke kino paipu/poʻo paipu:
1. Pono ka ʻili o ke kino o ka paipu e laumania, me ka ʻole o nā kaha, nā ʻōpala, nā ʻūmiʻi, a i ʻole ke ʻano o ka emi ʻana o ka ʻili. Pono ke kino o ka paipu e pololei a ʻaʻole e kūlou. Pono e like ka mānoanoa o ka paia o ka paipu. Pono ka mānoanoa o ka paia o ka paipu, ka lōʻihi o ka paipu, a me nā ʻae ʻana o ke anawaena i loko o ka pae i kuhikuhi ʻia;
2. Pono e hoʻopaʻa pono ʻia ke poʻo paipu a me ke kino paipu o ka hose, pono e maʻemaʻe a nani ke kaula hoʻohui, a pono e like ka laulā. ʻAʻole pono e ʻūlū ʻia ke poʻo paipu ma hope o ka hoʻohui ʻana;
3. Pono ke poʻo o ka paipu a me ka uhi o ka paipu e kūlike maikaʻi, e wili mālie i loko a i waho, a ʻaʻohe paheʻe ʻana i loko o ka pae torque i kuhikuhi ʻia, a ʻaʻohe wai a ea paha e liki ana ma waena o ka paipu a me ka uhi;
Nā koi paʻi: Hoʻohana pinepine ka hana ʻana i nā hose i ka paʻi lithographic offset (OFFSET), a ʻo ka hapa nui o ka ʻīnika i hoʻohana ʻia he maloʻo UV, kahi e pono ai ka hoʻopili ikaika a me ke kūʻē ʻana i ka discoloration. Pono ke kala paʻi i loko o ka pae hohonu i kuhikuhi ʻia, pono ke kūlana overprint e pololei, pono ke ʻokoʻa i loko o 0.2mm, a pono e piha a maopopo ka font.
Nā koi no nā pāpale palaki: Hana pinepine ʻia nā pāpale palaki me ka hoʻoheheʻe ʻana i ka polypropylene (PP). ʻAʻohe laina ʻālohilohi a me ka ʻālohilohi o nā pāpale palaki kiʻekiʻe, nā laina ʻālohilohi laumania, nā ana pololei, a me ke kūpono laumania me ke poʻo paipu. ʻAʻole lākou e hōʻino i ke ʻano e like me nā māwae palupalu a i ʻole nā māwae i ka wā o ka hoʻohana maʻamau. No ka laʻana, i ka wā e komo ai ka ikaika wehe i loko o ka laulā, pono e hiki i ka pāpale flip ke kū i nā pelu he 300 a ʻoi me ka ʻole o ka haki ʻana.
Ke manaʻoʻiʻo nei au e hoʻomaka ana mai nā ʻano i luna, pono e hiki i ka hapa nui o nā ʻoihana kemika i kēlā me kēia lā ke koho i nā huahana hose packi kiʻekiʻe.
Ka manawa hoʻouna: Iulai-12-2024