Ifilimu ye-HSQY enezingqimba ezingu-11 ze-PA/PP/EVOH/PE ehlanganisa isithiyo se-oxygen se-EVOH, ukumelana nokubhoboza kwe-PA kanye nokuvaleka kwe-PE kokupakisha i-vacuum kanye ne-thermoforming. Imiqulu eyenziwe ngokwezifiso engu-30-450μm.
I-HSQY
Amafilimu Okupakisha Aguquguqukayo
Sula, Ngokwezifiso
| Ukutholakala: | |
|---|---|
Ifilimu ye-High Barrier PA/PP/EVOH/PE Co-extrusion
Ifilimu ye-HSQY enezingqimba ezingu-11 ze-PA/PP/EVOH/PE ehlanganisa izithiyo eziphakeme iyinto yokupakisha eguquguqukayo enezingqimba eziningi eyenzelwe izinhlelo zokusebenza ezidinga isithiyo esinamandla se-oxygen, ukumelana nokubhoboza, ukuvalwa kokushisa kanye nemininingwane yokugoqa eyenziwe ngokwezifiso.
Isakhiwo samanje yi-PA/TIE/PP/TIE/PA/EVOH/PA/TIE/PE/PE/PE. I-EVOH inikeza isithiyo esiyinhloko se-oxygen negesi, i-PA inikela ngamandla omshini kanye nokumelana nokubhoboza, kuyilapho izendlalelo ze-polyolefin zisekela ukumelana nomswakama, ukuguquguquka, ukusebenza kokuvala kanye nokuvikelwa kwesakhiwo sesithiyo sangaphakathi.
I-HSQY inikeza ifilimu kusukela cishe ku-0.03mm kuya ku-0.45mm ubukhulu kanye nobubanzi obungu-200mm kuya ku-4000mm. Igeyiji yefilimu, ububanzi, ububanzi bokugoqa, usayizi oyinhloko, izinga lokuvimbela, ukuziphatha kwesivalo, ukwelashwa kwendawo kanye nezidingo zokuphrinta kungenziwa ngokwezifiso ngokuya ngomkhiqizo opakishiwe kanye nomshini wokupakisha.
Ifilimu ingahlolwa ukuze ihlolwe ukupakisha nge-vacuum, ukupakisha ukudla okuguquguqukayo kanye nezinhlelo zokusebenza ezikhethiwe zokulungisa ukushisa. Ukuhlanza okuguquguqukayo, okubilisayo, kwezokwelapha kanye nezinye izinhlelo zokusebenza ezidinga ukushisa noma zokulawula zidinga isakhiwo esiklanywe ngokukhethekile kanye nokuqinisekiswa kwesicelo esithile kunokuba kuthathwe kusukela ekuhlanganisweni kwezinto kuphela.
Ifilimu Yokuxhumanisa I-High Barrier Enezingqimba Eziyi-11
Ifilimu Yokupakisha Eguquguqukayo Yesithintelo Esiphezulu
Ifilimu Yokupakisha Engaphrintwa Enezithiyo Eziphezulu
| Kwendawo | Ukucaciswa |
|---|---|
| Umkhiqizo | 11-Layer PA/PP/EVOH/PE High Barrier Coextrusion Film |
| Isakhiwo Samanje Esinezingqimba Eziyi-11 | I-PA / TIE / PP / TIE / PA / EVOH / PA / TIE / PE / PE / PE |
| Uhlobo lwefilimu | Ifilimu yokupakisha eguquguqukayo enezingqimba eziningi ehlanganisiwe |
| Ubukhulu | 0.03mm-0.45mm (30-450μm), eyenziwe ngokwezifiso |
| Ububanzi | 200mm-4000mm, eyenziwe ngezifiso |
| Umbala | Imibala ecacile; eyenziwe ngokwezifiso kanye nokuphrinta kuncike ekucacisweni |
| Isendlalelo Esiyinhloko Sesithiyo | I-EVOH yokuvimbela umoya-mpilo ophezulu, igesi kanye nephunga elimnandi |
| Izendlalelo Zemishini | Izendlalelo ze-PA zokuqina, ukumelana nokubhoboza kanye namandla omshini |
| Uhlangothi Lokuvala | Izendlalelo zangaphakathi ezisekelwe ku-PE esakhiweni samanje esisohlwini; ukusebenza kokuvala kuncike ekwakhiweni nasekuhlanganiseni izinto |
| Izendlalelo ze-TIE | Ama-polymers e-adhesive tie anamathelayo ahlanganisa izendlalelo ze-polymer ezingahambisani ngaphakathi kwesakhiwo esihlanganisiwe |
| Ukuphrinta | Izinketho zokuphrinta ziyatholakala; ukwelashwa kwendawo, uhlangothi lokuphrinta, uhlelo lweyinki, ubuciko kanye nezidingo zombala kufanele ziqinisekiswe |
| Izinqubo Eziyinhloko Zokupakisha | Ukupakisha nge-vacuum, ukupakisha okuguquguqukayo kanye nezinhlelo zokusebenza ezikhethiwe ze-thermoforming |
| Izicelo Zokudla Ezijwayelekile | Inyama, inyama ecutshunguliwe, ukudla kwasolwandle, ushizi, ukudla okubandayo kanye nokudla okuqandisiwe kuncike ekuqinisekisweni kwephakheji |
| Ukusetshenziswa Kwezokwelapha/Kwezimboni | Izicelo ezikhethiwe kuphela ngemva kokuqinisekisa indlela yokubulala inzalo edingekayo, imibhalo yomthetho, umlingani wophawu kanye nokuhlolwa kokusebenza |
| Ukusetshenziswa Kokuphenduka/Okubilisa | Kudinga isakhiwo esiqinisekisiwe esizinikele; akuyona impahla yendawo yonke yawo wonke amafilimu e-PA/PP/EVOH/PE |
Ukuhlanganiswa kwe-multilayer kuvumela ama-polymer ahlukene ukuthi enze imisebenzi ehlukene ngaphakathi kwefilimu eyodwa. Esikhundleni sokudinga i-polymer eyodwa ukuthi inikeze zonke izakhiwo zemishini, izithiyo, ukuvala kanye nokucubungula, ungqimba ngalunye lungalungiselelwa indima ethile.
| Wesendlalelo | Yomsebenzi Oyinhloko | Inzuzo Yokupakisha |
|---|---|---|
| I-PA - I-Polyamide / Inayiloni | Amandla omshini, ukuqina kanye nokumelana nokubhoboza | Isiza ekuvikeleni amaphakheji aqukethe inyama, amathambo, imiphetho kashizi kanye neminye imikhiqizo edinga amandla amaningi |
| I-EVOH | I-oxygen ephezulu, igesi kanye nesithiyo sephunga | Kusiza ekunciphiseni ukudluliswa komoya-mpilo futhi kuvikele imikhiqizo namaphunga azwela umoya-mpilo |
| I-PP | Isendlalelo esisebenzayo se-polyolefin esinikeza ukumelana nomswakama, ukuqina kanye nezici zokushisa ngokuya ngebanga | Ivumela isakhiwo esinezingqimba eziningi ukuthi sakhiwe ukuze sihambisane nezimo ezithile zokupakisha nokucubungula |
| I-PE | Ukuvalwa kokushisa, ukuguquguquka kanye nokumelana namanzi nomhwamuko | Ihlinzeka ngohlangothi lwangaphakathi lokuvala esakhiweni samanje esisohlwini futhi isiza ukuvikela ungqimba lwe-EVOH emswakama |
| I-TIE | Ukunamathelana kwezingqimba eziphakathi | Ibopha ama-polymer ahlukene abe yisakhiwo esizinzile esinezingqimba eziningi |
I-EVOH isetshenziswa ekupakisheni ngezingqimba eziningi ikakhulukazi ngenxa yokuthi i-oxygen negesi yayo iphansi kakhulu uma iqhathaniswa nepulasitiki yezimpahla ezivamile.
Isithiyo se-oksijini sibalulekile emikhiqizweni engaba ne-oxidation, ukushintsha kombala, ukulahleka kwephunga, ukusha noma okunye ukonakala kwekhwalithi uma ivezwa ku-oxygen ngesikhathi sokugcina.
I-EVOH iyazwela emswakama wemvelo, ngakho-ke ivame ukuvikelwa ngaphakathi kwesakhiwo esinezingqimba eziningi yizingqimba ze-polyolefin ezifana ne-PE noma i-PP. Yingakho ukusebenza kwesithiyo kumele kuhlolwe ifilimu ephelele yezingqimba eziningi kunokuba kuhlolwe kusuka kungqimba ye-EVOH kuphela.
Izinga Lokudlulisa I-Oxygen, noma i-OTR, ingenye yezincazelo ezibaluleke kakhulu zefilimu yokupakisha equkethe i-EVOH. I-OTR ephansi ngokuvamile ikhombisa ukumelana okunamandla kokudluliselwa kwe-oxygen ngaphansi kwezimo zokuhlola ezishiwo.
I-OTR ithonywa yizinga le-EVOH, ukujiya kwe-EVOH, isakhiwo sesendlalelo esiphelele, ukujiya kwefilimu iyonke, umswakama ohlobene, izinga lokushisa kanye nezimo zokwakheka. Ngakho-ke inani elilodwa elijwayelekile le-OTR akufanele lisetshenziswe kuyo yonke ifilimu ye-PA/PP/EVOH/PE.
Uma iphrojekthi yakho ichaza ithagethi ye-OTR, nikeza indlela yokuhlola edingekayo, izinga lokushisa, umswakama ohlobene kanye nenani lethagethi ukuze isakhiwo sefilimu sihlolwe kahle.
Izinga Lokudlulisa Umhwamuko Wamanzi, noma i-WVTR, lichaza inani lomhwamuko wamanzi odlula ezintweni zokupakisha ngaphansi kwezimo ezithile.
Kule filimu enezingqimba eziningi, ukuvikelwa komswakama kusekelwa kakhulu yizingqimba ze-polyolefin kunokuchaza i-EVOH ngokwayo njenge-resin yokuvimbela umswakama. Izingxenye ze-PE ne-PP zisiza ekunciphiseni ukudluliselwa kwamanzi nomhwamuko futhi zivikele ungqimba lwangaphakathi lwe-EVOH lokuvimbela umoya-mpilo emswakama.
Abathengi abanemfuneko ethile ye-WVTR kufanele banikeze izimo zokuhlolwa okuqondiwe ngoba i-WVTR iyahlukahluka ngokwesakhiwo se-polymer, ukujiya, izinga lokushisa kanye nomswakama.
Ukupakishwa kwe-vacuum kususa iningi lomoya ozungeze umkhiqizo ngaphambi kokuba iphakheji ivalwe. Emikhiqizweni ezwela umoya-mpilo, ifilimu enezivikelo eziphakeme ingasiza ekunciphiseni ukungena komoya-mpilo odongeni lwephakheji.
I-PA inegalelo ekuqineni nasekumelaneni nokubhoboza njengoba iphakheji ihambisana eduze nomkhiqizo, kuyilapho i-EVOH inikeza isithiyo se-oxygen kanti uhlangothi lwe-PE lunikeza ukusebenza kokuvala ukushisa esakhiweni samanje esisohlwini.
Amafilimu e-vacuum anezivimbelo eziphakeme angahlolwa ukuze athole inyama entsha, inyama ecutshunguliwe, amasoseji kanye neminye imikhiqizo yamaprotheni lapho ukuvikelwa komoya-mpilo, ukumelana nokubhoboza kanye nokuqina kophawu kubalulekile.
Ukupakishwa kokudla kwasolwandle kudinga ukulawulwa ngokucophelela kobuqotho bephakheji, izinga lokushisa lokugcina kanye nokuphepha kwezinto eziphilayo. Ukukhethwa kwefilimu kufanele kuqinisekiswe kanye nomkhiqizo wangempela wokudla kwasolwandle kanye nezimo ezidingekayo ze-cold chain.
Amafilimu aqukethe i-EVOH angasiza ekuvikeleni ushizi ozwela umoya-mpilo kanye nemikhiqizo yobisi ekhethiwe kuyilapho i-PA inegalelo ekumelaneni nomshini ngesikhathi sokupakisha nokusabalalisa i-vacuum.
Izakhiwo ze-PA/EVOH/polyolefin ezifanele zingasetshenziswa njenge-thermoforming bottom webs. Ngesikhathi se-thermoforming, ifilimu iyashiswa bese idonswa emgodini ngaphambi kokuba ukudla kulayishwe bese i-top web ehambisanayo ivalwa ephaketheni.
Ukwakha kwelula futhi kunciphise ifilimu, ikakhulukazi emakhoneni nasezimbotsheni ezijulile. Ifilimu enikeza isithiyo esanele ngaphambi kokwakheka ingaba nobukhulu bendawo obuhlukile kanye nokusebenza kwesithiyo ngemva kokudonsa okujulile.
Kumaphrojekthi okwakha i-thermoforming, chaza ubude besikhala, ububanzi, ukujula, irediyasi yekona, izinga lokushisa lokwakha, imodeli yomugqa, isisindo sephakheji kanye nokusebenza kwesithintelo okudingekayo ukuze kuhlolwe igeyiji nesakhiwo esifanele.
| Ukuqhathanisa | i-PA/PE Medium Barrier | PA/EVOH/PE High Barrier |
|---|---|---|
| Isithiyo Esiyinhloko Se-Oxygen | Ngokuyinhloko i-PA | I-EVOH isekelwa yizingqimba ze-PA |
| Izinga Lokuvimbela I-Oxygen | Okumaphakathi, kuye ngesakhiwo kanye nobukhulu | Kuphezulu kuya phezulu kakhulu, kuye ngebanga le-EVOH, ukujiya kanye nezimo zokuhlola |
| Ukumelana Nokubhoboza | Kuhle ngokuqukethwe kwe-PA okufanele | Kuhle ngokuqukethwe kwe-PA okufanele |
| Ukukhetha Okuvamile | Ukupakishwa okujwayelekile kwe-vacuum kanye nezidingo zokuvimbela ezimaphakathi | Ukudla okuzwela umoya-mpilo kanye nezicelo ezidinga isithiyo esinamandla |
| Ubunzima Besakhiwo | Uhlelo olulula lwezingqimba eziningi | Uhlelo oluyinkimbinkimbi kakhulu lwezingqimba eziningi olunezithiyo eziphakeme |
Ukupakishwa okuguquguqukayo okuphrintiwe kuvumela ihluzo zomkhiqizo, ulwazi lomkhiqizo, amabhakhodi, imiyalelo yokulungiselela kanye nolwazi lokulawula ukuthi kufakwe ephaketheni.
Ukusebenza kokuphrinta kuncike kungqimba lwangaphandle lwe-polymer, ukwelashwa kwendawo kanye nohlelo lwe-inki olukhethiwe. Uma kudingeka ukuphrinta umbala, chaza indlela yokuphrinta, inani lemibala, umsebenzi wobuciko, uhlangothi lokuphrinta kanye nokwelashwa kwendawo okudingekayo.
Ifilimu ephrintiwe kufanele ihlolwe ngenqubo ephelele yokupakisha, okuhlanganisa ukwakheka lapho kufanele khona, ukuvala ukushisa, i-vacuum, indawo yokugcina ebanda kanye nokuphathwa kwephakheji, ukuqinisekisa ukuthi indawo ephrintiwe igcina ukunamathela nokubukeka okudingekayo.
| Isivivinyo/Ipharamitha | Kungani Kubalulekile |
|---|---|
| I-OTR | Inquma ukumelana nokudluliswa komoya-mpilo ngaphansi kokushisa okucacisiwe kanye nomswakama |
| I-WVTR | Ilinganisa ukudluliswa kwamanzi nomhwamuko ngaphansi kwezimo ezithile |
| Amandla Okuvala | Kusiza ekunqumeni ubuqotho bephakheji nokuthi ngabe izinto zokubopha ezikhethiwe kanye nezimo zokuvala ziyafaneleka yini |
| Ukumelana Nokubhoboza | Kubalulekile emikhiqizweni equkethe imiphetho ebukhali, amathambo noma amakhona aqinile |
| Ukuthamba / Ukwelula | Kubonisa ukusebenza komshini ngesikhathi sokwakha, ukulayisha, ukupakisha nge-vacuum kanye nokusabalalisa |
| Ukusebenza kwe-Thermoforming | Inquma ukudonseka, ukuncipha kwekhona, ukufana kwembobo kanye nokubukeka kwephakeji |
| Izakhiwo Zokubona | Ukucaca, ubumnyama kanye nokucwebezela kuthinta ukubonakala komkhiqizo kanye nokwethulwa kwezitolo |
Izinto zomthombo zamanje azinikezi amanani aqinisekisiwe e-OTR, i-WVTR, amandla okuvala, ukubhoboza noma amanani okudonswa kwale filimu eqondile. Uma lawa mapharamitha ebalulekile ekucacisweni kwakho, cela idatha yobuchwepheshe noma ukuhlolwa okuqondene nebanga elithile kunokusebenzisa amanani ajwayelekile aqinile.
Amafilimu amaningi aqukethe i-PA avame ukubhekwa lapho amaphakheji edinga ukuqina ngesikhathi sokuqandisa, ukuqandisa kanye nokusatshalaliswa. Ukuguquguquka kwefilimu, ukumelana nokushayisana kanye nobuqotho besivalo kufanele kusahlolwe ekushiseni kwangempela kwesitoreji.
Ngemikhiqizo eqandisiwe, chaza izinga lokushisa eliphansi lokugcina, indlela yokuqandisa, isisindo somkhiqizo, ingozi ebukhali, izimo zokuwa kanye nesikhathi esidingekayo seshelufu.
Amafilimu aqukethe i-EVOH anezithiyo eziphakeme angaba yingxenye yezinhlelo ze-Modified Atmosphere Packaging, kodwa ukusebenza kwe-MAP kuncike ekwakhiweni kwephakheji ephelele kunokuba ifilimu yodwa.
Amaphrojekthi e-MAP kufanele acacise umkhiqizo, ingxube yegesi eqondiwe, isidingo se-oxygen esisele, izinga lokushisa lokugcina, isikhathi esifunekayo seshelufu, ukujula kokwakheka, isakhiwo sewebhu ephezulu kanye nezimo zokuvala.
Ukuphepha kokudla kanye nesikhathi sokuphelelwa yisikhathi kumele kuqinisekiswe ngenqubo ephelele ye-MAP ngumkhiqizi wokudla noma ochwepheshe bezobuchwepheshe abafanele.
Ukuba khona kwe-PP kanye ne-EVOH esakhiweni esinezingqimba eziningi akwenzi ngokuzenzakalelayo yonke ifilimu ifanelekele ukusetshenziswa kwe-retort noma ukubilisa.
Ukucubungula i-retort kungaveza ukupakishwa cishe ku-121°C noma eminye imijikelezo yokushisa ephezulu, kuye ngenqubo. Uhlobo lwe-sealant, izendlalelo ze-tie, ibanga le-EVOH, ibanga le-PA, izilinganiso zezendlalelo kanye nokwakhiwa kwefilimu iyonke kumele konke kuklanyelwe inqubo yokushisa edingekayo.
Uma kudingeka ukupakisha okuphendukile noma okubilayo, nikeza izinga lokushisa eliqondile lenqubo, isikhathi sokubamba, ingcindezi, uhlobo lokudla kanye nezidingo zokuvala ukuze i-HSQY iqinisekise ukuthi isakhiwo esikhethekile siyatholakala yini.
Ulwazi lomthombo we-HSQY olukhona lubala ukufakwa kwezokwelapha phakathi kwezicelo ezingaba khona. Kodwa-ke, ukufakwa kwezokwelapha kunezidingo ezengeziwe ezincike kudivayisi, uhlelo lokuvimbela oluyinyumba, umlingani wokuvala kanye nendlela yokubulala inzalo.
Ifilimu ehloselwe ukubulala izinambuzane nge-ethylene oxide, i-gamma, i-electron-beam noma i-steam sterilization kufanele ifaneleke ngqo kuleyo nqubo yokubulala izinambuzane. Ukuhambisana nephepha lezokwelapha, ama-substrate ohlobo lwe-Tyvek, ama-nonwoven noma amanye ama-webs aphezulu nakho kudinga ukuhlolwa okuhlukile.
Ungaphathi isitifiketi sekhwalithi ye-SGS noma ye-ISO njengobufakazi bokuthi yonke inguqulo yale filimu ivunyelwe njengohlelo lokupakisha lwezokwelapha olungenamagciwane.
Ubukhulu obungokwezifiso kusukela ebangeni lokukhiqiza elifanele.
Ububanzi bokugoqa ngokwezifiso bufinyelela emkhawulweni womshini ofanele.
Isakhiwo esenziwe ngokwezifiso sezingqimba eziningi ngokwezidingo zesithiyo.
Izilinganiso ezahlukene ze-PA, EVOH, PP kanye ne-PE layer.
I-OTR eqondiwe ngokwezifiso incike endleleni yokuhlola kanye nemibandela.
Imfuneko ye-WVTR eyenziwe ngokwezifiso.
Izakhiwo zokupakisha i-vacuum.
Izakhiwo ezingaphansi kwewebhu ezishintsha ukwakheka kwe-thermoforming.
Ukuziphatha okulula kokukhuhla noma ukuvala lapho kutholakala khona izakhiwo ezifanele.
Umbala ocacile noma owenziwe ngokwezifiso.
Ukwelashwa kwendawo ephrintekayo.
Ukuphrinta kombala okwenziwe ngokwezifiso.
Usayizi we-core ngokwezifiso kanye nobubanzi bokugoqa.
Ukupakishwa kwe-roll yokuthumela ngaphandle kanye nokulungiselelwa kwephalethi.
Umkhiqizo opakishiwe.
Inqubo yokuhlanza, yokushisa, ye-MAP noma enye inqubo yokupakisha.
Isakhiwo sefilimu samanje uma sitholakala.
Ubukhulu befilimu obudingekayo.
Ububanzi bokugoqa obudingekayo.
Ububanzi be-core kanye ne-OD ephezulu yokugoqa.
I-OTR edingekayo kanye nezimo zokuhlola.
I-WVTR edingekayo kanye nezimo zokuhlola.
Ukujula komgodi olungisa ukushisa kanye nobukhulu bawo.
Uhlobo lomshini wokupakisha kanye nomodeli.
Umlingani wesivalo odingekayo noma izinto ezisetshenziswa kakhulu.
Isidingo sokuvala kalula noma sokuvala ngokukhiya.
Izinga lokushisa lokugcina kanye nesikhathi esidingekayo seshelufu.
Inqubo yokubuyisela emuva, ukubulala amagciwane noma yokubilisa uma ikhona.
Indlela yokuphrinta, imibala kanye nomsebenzi wobuciko uma kudingeka.
Imibhalo edingekayo yokulawula noma yokuxhumana nokudla.
Inani lokuhlola kanye nokusetshenziswa konyaka.
Izwe kanye nechweba lapho uya khona.
Isithombe sesitifiketi esingezansi sigcinwe ekhasini lokuqala. Abathengi kufanele baqinisekise inguqulo yesitifiketi yamanje, ukusebenza kwayo, ububanzi bokukhiqiza nokuthi ngabe imibhalo iyasebenza yini esakhiweni sefilimu kanye nohlelo lokusebenza oluhlosiwe.
Uma ufuna ukudla, ezokwelapha, impendulo noma ezinye izicelo ezilawulwayo, cela imibhalo eqondene nesicelo kunokuthembela kuphela esitifiketini sekhwalithi se-SGS noma se-ISO esijwayelekile.
I-HSQY ihlangana nabacubunguli bokudla, abaguquli bokupakisha, abasabalalisi kanye nabathengi bezimboni emibukisweni yamazwe ngamazwe ukuze baxoxe ngamafilimu anezivikelo eziphakeme, amafilimu okushisa, amafilimu okumboza kanye namaphrojekthi okupakisha aphelele aguquguqukayo.
Umbukiso waseMexico ka-2024
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Umbukiso waseSaudi ka-2023
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Ukukhiqizwa Kwamafilimu Anezithiyo Eziphezulu
Ukupakisha Ifilimu
Ukupakisha Okugoqekile Kokuthumela Ngaphandle
Ifilimu ye-coextrusion enezingqimba ezingu-11 ihlanganisa i-polymer esebenzayo kanye nezendlalelo zokubopha eziyishumi nanye ngesikhathi senqubo eyodwa ye-coextrusion. Izendlalelo zikhethwa ukuze zinikeze izakhiwo ezifana nokuvimbela umoya-mpilo, ukumelana nokubhoboza, ukuvala, ukuvikelwa komswakama kanye nokusebenza kokucubungula.
Isakhiwo samanje esisohlwini yi-PA/TIE/PP/TIE/PA/EVOH/PA/TIE/PE/PE/PE/PE. Izakhiwo ezenziwe ngokwezifiso zingadinga ukukhiqizwa okuhlukile kanye nokuqinisekiswa kobuchwepheshe.
I-EVOH inikeza isithiyo esinamandla se-oxygen, igesi kanye nephunga. Ngokuvamile ifakwa ngaphakathi kwephakheji yezingqimba eziningi futhi ivikelwe ezinye izendlalelo ze-polymer ngoba ukusebenza kwayo kwesithiyo kuthonywa umswakama.
I-EVOH ikhethwa kakhulu ngenxa yokuvimbela umoya-mpilo kanye negesi. Ukumelana nomhwamuko wamanzi esakhiweni esinezingqimba eziningi ngokuvamile kusekelwa izendlalelo ze-polyolefin ezizungezile njenge-PE kanye ne-PP.
I-PA, eyaziwa nangokuthi i-nylon, inezela amandla okusebenza, ukuqina kanye nokumelana nokubhoboza. Lezi zakhiwo ziwusizo kakhulu kumaphakheji e-vacuum kanye ne-thermoforming.
Imininingwane yomkhiqizo wamanje ibala cishe u-0.03mm kuya ku-0.45mm, okulingana no-30-450μm. Ubukhulu bokugcina obutholakalayo buncike esakhiweni kanye nokusetshenziswa okudingekayo.
Ikhasi lamanje libala ububanzi obusukela ku-200mm kuya ku-4000mm. Nikeza imodeli yomshini, ububanzi bomgoqo obudingekayo, ububanzi obuyinhloko kanye ne-OD ephezulu yokugoqa uma ucela ikhotheshini.
Izakhiwo ezifanele zingasetshenziswa ekupakisheni inyama, ukudla kwasolwandle, ushizi neminye imikhiqizo nge-vacuum. Isilinganiso sokugcina sefilimu kanye nesakhiwo kufanele kukhethwe ngokuya ngesimo somkhiqizo, ingozi yokubhoboza, izimo zokuvala kanye nesidingo sokuvimbela.
Amagreyidi afanele angasetshenziswa njenge-thermoforming bottom webs. Ukuze udonse ngokujulile, nikeza ukujula kokwakheka, usayizi we-cavity, i-ekhoneni radius kanye nezimo zomshini ngoba ifilimu iba mncane ngesikhathi sokwakheka.
Izakhiwo eziqukethe izivimbelo eziphakeme ze-EVOH zingasetshenziswa ezinhlelweni ze-MAP ezikhethiwe. Ingxube yegesi, i-geometry yephakheji, i-OTR, ubuqotho besivalo, izinga lokushisa lokugcina kanye nesidingo sokuphila kweshelufu kumele kuqinisekiswe ukuze kuhlanganiswe iphakheji ephelele.
Izinketho eziphrintiwe neziphrintiwe ngombala zingaxoxwa ngazo. Nikeza umsebenzi wobuciko, inani lemibala, indlela yokuphrinta, izidingo zohlangothi lokuphrinta kanye noyinki ukuze ukwelashwa kwendawo kanye nencazelo yokuphrinta kuqinisekiswe.
Amandla okujika akufanele athathwe njengesakhiwo esijwayelekile. Ifilimu ezinikele kumele iqinisekiswe ngokuya ngokushisa kokujika, ingcindezi, isikhathi sokubamba, umkhiqizo wokudla kanye nezidingo zesivalo.
Izakhiwo ezikhethiwe zingahlolwa ukuze zihlolwe ukuze zisetshenziswe ekupakisheni kwezokwelapha, kodwa inqubo eqondile yokubulala inzalo, i-substrate yokuvala, izidingo zomthetho kanye nendlela yokuqinisekisa kumele ichazwe. Ifilimu evamile yokupakisha eguquguqukayo akufanele ichazwe ngokuzenzakalelayo njengokupakisha kwezokwelapha okuhlanzwayo.
Isakhiwo sesithintelo singaxoxwa ngokuya nge-OTR edingekayo, i-WVTR, ukujiya okuphelele, ukujula kokwakheka, izimo zomkhiqizo kanye nesitoreji. Nikeza amanani okuhlolwa okuqondiwe kanye nezimo zokuhlola uma kungenzeka.
Sicela unikeze umkhiqizo opakishiwe, inqubo yokupakisha, ukujiya kwefilimu, ububanzi, isithiyo esidingekayo, ubukhulu bokwakha uma kusebenza, imodeli yomshini, umlingani wesivalo, izimo zokugcina, izidingo zokuphrinta, izidingo zomthetho kanye nenani lonyaka.
I-HSQY ihlinzeka nge-multilayer PA/PE, PA/EVOH/PE kanye ne-PA/PP/EVOH/PE amafilimu okupakisha aguquguqukayo okufaka i-vacuum, i-thermoforming, ukupakisha ukudla kanye nezicelo ezikhethiwe zezimboni.
Ukujiya kwefilimu, ububanzi, isakhiwo sezingqimba eziningi, izinga lesithintelo, incazelo yomquba kanye nokucushwa okuphrintekayo kungaxoxwa ngakho ngokuya ngemishini yokupakisha yomthengi kanye nezidingo zomkhiqizo oqediwe.
Kumaphrojekthi amasha, thumela i-HSQY imininingwane yakho yamanje yefilimu noma isampula yefilimu engokoqobo kanye nomodeli womshini wokupakisha, umkhiqizo kanye nesithiyo esidingekayo. Lokhu kuvumela ifilimu ukuthi ihlolwe njengengxenye yenqubo ephelele yokupakisha kunokuba ihlolwe ngegama le-polymer kuphela.
Isigaba Somkhiqizo
Ake Sithole Isixazululo Esifanele Sepulasitiki