Ihe nkiri coextrusion multilayer
Banyere mmeghe nke ụlọ ọrụ mmepụta ihe, nkwupụta okwu, MOQs, nnyefe, ihe atụ n'efu, imepụta nka, usoro ịkwụ ụgwọ, ọrụ ire ere wdg. Biko pịa FAQ ka ịnweta azịza niile ịchọrọ ịma.
Pịa FAQQingdao Advanmatch Packaging's multi-layer co-extruded composite film na-ekewa n'imeisi oyi akwa, oyi akwa na-arụ ọrụ na nrapado oyi akwa dị ka ọrụ nke ọ bụla oyi akwa nke ihe nkiri n'agbanyeghị ọnụ ọgụgụ nke n'ígwé.
Isi oyi akwa: N'ozuzu, n'ime na elu n'ígwé nke mejupụtara ihe nkiri nke kwesịrị inwe ezi anụ ahụ na n'ibu Njirimara, ịkpụzi na nhazi Njirimara na thermal sealing oyi akwa.Ọ nwere ezigbo ọrụ mkpuchi okpomọkụ yana arụmọrụ ịgbado ọkụ na ọnụ ala dị ala.Ka ọ dị ugbu a, ọ na-enwekwa nkwado dị mma na njigide na-arụ ọrụ na oyi akwa na-arụ ọrụ na oke kachasị elu n'ime akpụkpọ ahụ mejupụtara nke na-ekpebi ihe siri ike nke akpụkpọ ahụ mejupụtara.Isi ihe bụ tumadi PE, PP, EVA, PET na PS.
oyi akwa na-arụ ọrụ:Ihe nkiri nkwakọba ihe na-arụ ọrụ coextrusion bụ nke ukwuu oyi akwa mgbochi, nke bụ n'ozuzu n'etiti ihe nkiri mejupụtara multi-layer.Ọ tumadi na-eji ihe mgbochi resins dị ka EVOH, PVDC, PVA, PA, PET, wdg N'ime ha, ndị kasị eji elu mgbochi ihe bụ EVOH na PVDC, na nkịtị PA na PET nwere yiri ihe mgbochi Njirimara, bụ nke ọkara mgbochi ihe. .
EVOH
Ethylene-vinyl mmanya copolymer bụ ụdị ihe eji eme ihe na-ejikọta usoro nke ethylene polima na ihe mgbochi gas nke ethylene mmanya polymer.Ọ na-egosipụta nke ọma ma nwee ọmarịcha gloss.EVOH nwere ezigbo ihe mgbochi megide gas na mmanụ.Ya n'ibu ike, mgbanwe, eyi na-eguzogide, oyi na-eguzogide na elu ike bụ magburu onwe ya na ọ nwere magburu onwe nhazi arụmọrụ.Ihe mgbochi nke EVOH dabere na ọdịnaya nke ethylene.Ngwaahịa juru eju na ihe EVOH gụnyere condiments, ngwaahịa mmiri ara ehi, ngwaahịa anụ, ngwaahịa cheese, wdg.
PVDC
Polyvinylidene chloride bụ polymer nke vinylidene chloride (1,1-dichlorethylene).Ọnọdụ ire ere nke homopolymer polyvinylidene chloride dị ala karịa ebe agbaze ya, yabụ na ọ siri ike ịgbaze.Ya mere, PVDC dị ka ihe nkwakọ ngwaahịa bụ copolymer nke vinylidene chloride na vinyl chloride nke nwere ezigbo gas tightness, corrosion eguzogide, ezi mbipụta na okpomọkụ-akara àgwà.Na mbido, a na-ejikarị ya eme nkwakọ ngwaahịa ndị agha.Mana a malitere iji ya dị ka ihe nkiri nchekwa nri na 1950s.Karịsịa ngwa ngwa-na na ọhụrụ-na-edebe nkwakọ nke e mepụtara na nnukwu quantities na osooso nke oge a nkwakọ technology na ijeụkwụ nke oge a ndụ ndị mmadụ, mgbanwe nke ngwa ndakwa nri cookers na ndọtị nke shelf ndụ nke nri na ọgwụ nke mere ka ngwa nke PVDC na-ewu ewu karịa.Enwere ike ịme PVDC ka ọ bụrụ ihe nkiri dị oke mkpa, yabụ na-ebelata ego nke akụrụngwa na ọnụ ahịa nkwakọ ngwaahịa, ọ ka na-emeri taa.
Nrapado oyi akwa
N'ihi na-adịghị mma mmekọ nke ụfọdụ isi resins na ọtọ oyi akwa resins, ọ dị mkpa na-etinye ụfọdụ nrapado n'ígwé n'etiti abụọ ndị a n'ígwé na-egwu ọrụ nke gluu, nke mere na-etolite ihe "integrated" mejupụtara film.Ngwunye nrapado na-eji resin nrapado, nke a na-ejikarị bụ maleic anhydride grafted polyolefin na ethylene-vinyl acetate copolymer (EVA).
Njirimara ihe nkiri agbakwunyere ọtụtụ oyi akwa:
1. Akwa mgbochi ihe onwunwe: Iji multilayer polymer kama monolayer polymerization nwere ike imeziwanye ihe mgbochi nke ihe nkiri ahụ ma nweta mmetụta mgbochi dị elu nke oxygen, mmiri, carbon dioxide, ísì, wdg karịsịa mgbe a na-ahọrọ EVOH na PVDC dị ka Ihe mgbochi, nnyefe oxygen ha na nnyefe mmiri dị ntakịrị.
2. Ọrụ siri ike: N'ihi nhọrọ dịgasị iche iche nke ihe nkiri multilayer na ngwa ngwa nke ihe, a pụrụ ịhọrọ ụdị resin dị iche iche dị ka ngwa ngwa nke ihe bara uru na-egosipụta n'ụzọ zuru ezu ọrụ nke ọkwa dị iche iche, iji kwalite ọrụ nke co. ihe nkiri extrusion, dị ka mmanụ na-eguzogide, mmiri na-eguzogide, elu okpomọkụ na-eguzogide nri, obere okpomọkụ oyi na-eguzogide.Enwere ike iji ya maka nkwakọ ihe na-adịghị mma, nkwakọ ngwaahịa na-adịghị mma na ngwugwu inflatable.
3. Ọnụ ego dị ala: E jiri ya tụnyere iko iko, nkwakọ ngwaahịa aluminom na nkwakọ ngwaahịa plastik ndị ọzọ na-enwe ike nweta otu mmetụta mgbochi ahụ.N'otu oge ahụ, ihe nkiri a na-ejikọta ọnụ nwere uru dị ukwuu na ọnụ ahịa.Dịka ọmụmaatụ, iji nweta otu ihe mgbochi ahụ, ihe nkiri a na-emepụta ihe na-ekpuchi okpukpu asaa nwere uru dị ukwuu na ọnụ ahịa karịa ihe nkiri ise nke ihe nkiri.N'ihi mmepụta ya dị mfe, ọnụ ahịa ihe nkiri a na-emepụta nwere ike belata site na 10-20% ma e jiri ya tụnyere ọnụ ahịa ihe nkiri akọrọ akọrọ na ihe nkiri ndị ọzọ.
4. Nhazi nhazi nke na-agbanwe agbanwe: nabata nhazi ihe owuwu dị iche iche iji gboo mkpa mmesi obi ike nke ngwaahịa dị iche iche.
