ʻO ke kūʻai ʻana i nā lako lako | Pehea e koho ai i nā huahana hose plastic kiʻekiʻe

ʻO ke koho a me ka maikaʻi o nā mea waiwai ke kī i ka hōʻoia ʻana i ka maikaʻi o nā hoses, e hoʻopili pololei i ka hana a me ka hoʻohana hope ʻana i nā hoses. ʻO nā mea hana o nā paipu plastik he polyethylene (no ke kino paipu a me ke poʻo o ka paipu), polypropylene (ka uhi pahu), masterbatch, pale resin, ka inika paʻi, varnish, a me nā mea ʻē aʻe. Eia nō naʻe, ʻo ke koho ʻana o nā mea e pili ana i nā mea e like me nā koi o ka maʻemaʻe, nā waiwai pale (koi no ka oxygen, wai mahu, mālama ʻala, a me nā mea ʻē aʻe), a me ke kūpaʻa kemika.

Ke koho ʻana i nā paipu: ʻO ka mea mua, pono nā mea i hoʻohana ʻia e kūpono i nā kūlana maʻemaʻe kūpono, a pono e hoʻomalu 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 paipu i lawe ʻia aku i ʻAmelika Hui Pū ʻIa, pono ka polyethylene (PE) a me ka polypropylene (PP) i hoʻohana ʻia e hoʻokō me ka US Food and Drug Administration (FDA) standard 21CFR117.1520.

ʻO nā mea pale o nā mea waiwai: Inā ʻo nā mea i loko o ka ʻeke o nā hui kemika i kēlā me kēia lā kekahi mau huahana e pili pono ana i ka oxygen (e like me kekahi mau mea hoʻonaninani keʻokeʻo) a i ʻole ke ʻala ʻala (e like me nā aila pono a i ʻole kekahi mau aila, nā waikawa, nā paʻakai a me nā paʻakai. nā mea ʻino ʻē aʻe), pono e hoʻohana ʻia nā paipu co-extruded ʻelima i kēia manawa. No ka mea, ʻo ka oxygen permeability o ka ʻelima-layer co-extruded tube (polyethylene / adhesive resin / EVOH / adhesive resin / polyethylene) he 0.2-1.2 mau ʻāpana, ʻoiai ka oxygen permeability o ka polyethylene one-layer tube maʻamau he 150-300 mau ʻāpana. I kekahi manawa, ʻoi aku ka haʻahaʻa o ka nui o ka pohō kaumaha o ka paipu co-extruded i loko o ka ethanol ma mua o ka pahu hoʻokahi. Eia kekahi, ʻo EVOH kahi ethylene-vinyl alcohol copolymer me nā waiwai pale maikaʻi a me ka paʻa ʻana o ka ʻala (ʻo ka mānoanoa o 15-20 microns ka mea kūpono loa).

ʻO ka ʻoʻoleʻa waiwai: Loaʻa i nā hui kemika i kēlā me kēia lā nā koi like ʻole no ka ʻoʻoleʻa o nā hoses, no laila pehea e loaʻa ai ka ʻoʻoleʻa i makemake ʻia? ʻO ka polyethylene i hoʻohana mau ʻia i loko o nā hoses ka nui o ka polyethylene haʻahaʻa haʻahaʻa, polyethylene kiʻekiʻe kiʻekiʻe, a me ka polyethylene haʻahaʻa haʻahaʻa laina. I waena o lākou, ʻoi aku ka maikaʻi o ka polyethylene kiʻekiʻe kiʻekiʻe ma mua o ka polyethylene haʻahaʻa haʻahaʻa, no laila hiki ke hoʻokō ʻia ka paʻakikī i makemake ʻia ma ka hoʻoponopono ʻana i ka ratio o ka polyethylene kiʻekiʻe / haʻahaʻa haʻahaʻa.

Ke kū'ē kemika: ʻoi aku ka maikaʻi o ka polyethylene kiʻekiʻe ma mua o ka polyethylene haʻahaʻa haʻahaʻa.

Ke kū'ē i ka lewa o nā mea waiwai: No ka ho'omalu'ana i ka hana pōkole a lō'ihi paha o ka hose, nā mea e like me ke'ano, ke kū'ē i ke kaomi / ke kū'ē i ka hā'ule'ana, ka ikaika o ka sila'ana, ke kū'ē'ana i ka pō'ai (ESCR waiwai), ka mea'ala a me ka nalowale o nā mea hana pono. e noonooia.

Ke koho ʻana i ka masterbatch: He kuleana koʻikoʻi ka Masterbatch i ka mana o ka hose. No laila, i ke koho ʻana i ka masterbatch, pono e noʻonoʻo ka ʻoihana mea hoʻohana inā loaʻa iā ia ka dispersibility maikaʻi, kānana a me ke kūpaʻa wela, ka pale ʻana i ka wā a me ke kūpaʻa huahana. I waena o lākou, he mea koʻikoʻi ka pale ʻana o ka huahana o ka masterbatch i ka wā o ka hoʻohana ʻana i ka hose. Inā kūpono ʻole ka masterbatch me ka huahana, e neʻe ke kala o ka masterbatch i ka huahana, a he koʻikoʻi loa nā hopena. No laila, pono nā hui kemika i kēlā me kēia lā e hoʻāʻo i ka kūpaʻa o nā huahana hou a me nā hoses (nā hoʻokolohua wikiwiki ma lalo o nā kūlana i kuhikuhi ʻia).

Nāʻano o ka varnish a me ko lākou mau hiʻohiʻona: Ua māheleʻia ka varnish i hoʻohanaʻia i ka hose i keʻano UV a me keʻano maloʻo wela, a hiki ke hoʻokaʻawaleʻia i ka'ālohilohi a me ka matte ma keʻano o ka helehelena. ʻAʻole hāʻawi wale ʻo Varnish i nā hopena hiʻohiʻona nani, akā pale pū nō hoʻi i nā ʻike a loaʻa kekahi hopena o ka pale ʻana i ka oxygen, ka wai wai a me ka ʻala. Ma ka ʻōlelo maʻamau, ʻoi aku ka maikaʻi o ka hoʻopili ʻana i ka varnish hoʻomaloʻo wela i ka paʻi ʻana i ka wela a me ka paʻi kilika, ʻoiai ʻoi aku ka maikaʻi o ka varnish UV. Hiki i nā hui kemika i kēlā me kēia lā ke koho i ka varnish kūpono e like me nā ʻano o kā lākou huahana. Eia kekahi, ʻo ka varnish i hoʻōla ʻia e loaʻa i ka adhesion maikaʻi, kahi ʻili maʻemaʻe me ka ʻole o ka lua, ka pale ʻana i ka pale, ke kūpaʻa ʻana, ke kūpaʻa corrosion, a ʻaʻohe discoloration i ka wā mālama.

Nā koi no ke kino paipu / poʻo puʻupuʻu: 1. Pono ka ʻili o ke kino paipu e maʻemaʻe, me ka ʻole o nā kaha, nā ʻōpala, nā ʻāʻī, a i ʻole ka hoʻohaʻahaʻa ʻana. Pono ke kino paipu pololei a ʻaʻole piʻo. Pono ka mānoanoa o ka pā paipu. Pono ka mānoanoa o ka pā paipu, ka lōʻihi o ka paipu, a me ke anawaena i loko o ka laulā i ʻōlelo ʻia;

2. Pono e hoʻopili paʻa ʻia ke poʻo o ka paipu a me ke kino o ka paipu, ʻo ka laina hoʻopili pono e maʻemaʻe a nani hoʻi, a ʻo ka laulā ke ʻano like. ʻAʻole pono e skewed ke poʻo paipu ma hope o ka hoʻopili ʻana; 3. Pono ke po'o o ka paipu a me ka uhi o ka paipu, e wili i loko a i waho me ka ma'alahi, a 'a'ole pono e pahe'e i loko o ke kaha o ka torque i ho'ākāka 'ia, a 'a'ole e kahe ka wai a me ka ea ma waena o ka paipu a me ka uhi;

Nā koi paʻi: Hoʻohana pinepine ʻia ka hose hose i ka lithographic offset printing (OFFSET), a ʻo ka hapa nui o ka inika i hoʻohana ʻia he UV-maloʻo, ʻo ia ka mea e koi ai i ka hoʻopili ikaika a me ke kūpaʻa ʻana i ka discoloration. Pono ka waihoʻoluʻu paʻi i loko o ka laulā hohonu i ʻōlelo ʻia, pono ke kūlana overprint, pono ka deviation i loko o 0.2mm, a ʻo ka font pono e piha a maopopo.

Nā koi no nā pāpale plastik: Hana mau ʻia nā pāpale plastik me ka polypropylene (PP) injection molding. ʻAʻole pono e loaʻa i nā pāpale plastik kūlana kiʻekiʻe nā laina hōʻemi a me ka uila, nā laina ʻeleʻele maʻemaʻe, nā ana pololei, a me ka maʻalahi me ke poʻo paipu. ʻAʻole pono lākou e hoʻopōʻino i ke kino e like me nā māwae brittle a i ʻole nā ​​māwae i ka wā hoʻohana maʻamau. No ka laʻana, i ka wā o ka ikaika wehe i loko o ka laulā, hiki i ka pāpale flip ke kūpaʻa ma mua o 300 paʻi me ka haki ʻole.