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I-PVC EVOH LDPE
WALLIS
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| Usayizi: | |
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| Ubuningi: | |
I-Wallis ihlinzeka ngeshidi eliqinile le-PVC/EVOH/LDPE elinesithiyo esiphezulu sezinhlelo zokusebenza zokupakisha zemithi, ezokwelashwa, zokuxilonga, ezomsoco nezikhethekile. Isakhiwo se-multilayer sihlanganisa ungqimba oluqinile lwe-PVC eyenza ungqimba, isendlalelo se-EVOH-oxygen-barrier kanye nosendlalelo sokuvala se-LDPE ukuze sinikeze ibhalansi yokusebenza kwe-thermoforming, ukuvikelwa kwegesi kanye nokusebenza kophawu lokushisa.
Impahla inganikezwa ngama-rolls noma amashidi asikwe ngaphambilini anogqinsi, ububanzi, umbala, ukufiphala kanye nokwakhiwa kongqimba. Ingahlolelwa izimbotshana ze-thermoformed, amathreyi aqinile, ukupakishwa komthamo weyunithi, ukupakishwa kwe-reagent yokuxilonga namanye amafomethi okupakisha aguquliwe.
Ngezicelo zemithi nezokwelapha, ukukhethwa kwezinto zokugcina kufanele kusekelwe esilinganisweni esidingekayo sokudluliswa komoyampilo, izinga lokudluliswa komhwamuko wamanzi, ukujula kokwakheka, isistimu yokuvala uphawu, ukwakheka okupakishiwe, inqubo yokuvala inzalo kanye nezidingo zokulawula imakethe yendawo. Ukufaneleka ngokomzimba kwephakheji eliphelele kunconywa ngaphambi kokukhiqizwa kwezentengiso.
Isakhiwo sokupakisha se-multilayer sihlanganisa ama-polymer ahlukene ngoba ayikho into eyodwa ehlinzeka ngokuqina okuphezulu, ukuvimbela umoya-mpilo, ukuvikela umswakama, ukuvala nokusebenza kokucubungula kulo lonke uhlelo lokusebenza.
I-PVC yakha isendlalelo sesakhiwo esiqinile noma esiqinile kancane. Ihlinzeka ngokuzinza kwe-dimensional futhi isekela ukushisa, ukwakheka kwe-cavity, ukusika nezinye izinqubo zokuguqula ukupakisha.
I-EVOH ikhethelwe ngokuyinhloko ngenxa ye-oksijeni yayo ephansi kakhulu kanye nokungena kwegesi. Ukufaka isendlalelo sesithiyo se-EVOH esincanyana kungathuthukisa kakhulu ukusebenza kwesithiyo komoya-mpilo sephakheji yezendlalelo eziningi uma kuqhathaniswa nama-polymer wempahla evamile.
Ukusebenza kwesithiyo se-EVOH kuthintwa umswakama, ngakho isendlalelo se-EVOH ngokuvamile sivikelwa ngaphakathi kwesakhiwo sezendlalelo eziningi kunokuba sisetshenziswe njengesendlalelo esiveziwe sokuvimbela umswakama.
I-LDPE ingasebenza njengesendlalelo sokuvala futhi ingasiza ukuvikela umgoqo we-EVOH ekuchayekeni umswakama. Ukusebenza kokugcina kokuvimbela umswakama kuncike ekugqineni kwe-LDPE, ukwakheka okuphelele kwe-laminate kanye nezimo zemvelo ezisetshenziselwa ukuhlolwa.
Amanani alandelayo amelela ububanzi bamanje bomkhiqizo we-Wallis. Ukubekezelelana kokugcina, izilinganiso zezingqimba kanye nokusebenza okusebenzayo kufanele kuqinisekiswe kuphrojekthi ngayinye yokupakisha yezokwelapha noma yezemithi.
| Ipharamitha | Ukucaciswa Okujwayelekile / Amanothi |
|---|---|
| Umkhiqizo | Ishidi lokupakisha eliqinile le-PVC/EVOH/LDPE |
| Isakhiwo | Isendlalelo sesakhiwo se-PVC / isendlalelo se-EVOH se-oxygen-barrier / isendlalelo sokuvala se-LDPE |
| Ubukhulu obuphelele | Cishe 0.055–2.00 mm; egcizelele ngokusho isicelo |
| Isilinganiso Sendlalelo | Kwenziwe ngokwezifiso ngokuya nge-OTR ehlosiwe, i-WVTR, ukuqina, ukujula kokwakha kanye nezidingo zokubeka uphawu |
| Ububanzi | Cishe 50-1400 mm |
| Ifomethi yokuhlinzeka | Ama-Rolls noma amashidi asikwe ngaphambilini |
| Ukuminyana Okujwayelekile | Cishe 1.3–1.5 g/cm³, ngaphansi kwesakhiwo sokugcina |
| Umbala | Imibala esobala, emhlophe, ephuzi, e-orange esobala kanye nemibala eyenziwe ngezifiso |
| Isithiyo Se-oksijini | Ukusebenza okuphezulu kwe-oxygen-barrier okunikezwa yi-EVOH; cacisa i-OTR eqondiwe nezimo zokuhlola |
| Isithiyo Somswakama | Kuncike ku-LDPE, ukwakheka okuphelele kwezingqimba eziningi, ukujiya kanye nezimo zokuhlola; cacisa i-WVTR eqondiwe |
| Isendlalelo Sokuvala Ukushisa | I-LDPE; ukuhambisana nempahla yesivalo sokukhwelana kumele kuqinisekiswe |
| Iyacubungula | I-Thermoforming, ukusika, ukufaka uphawu, ukuphrinta kanye nokuguqula okuqondene nephrojekthi |
| Ukwenza ngokwezifiso | Ubukhulu, isilinganiso sesendlalelo, ububanzi, usayizi weshidi, umbala, ukufiphala, ukumiswa kwendawo kanye nomqulu |
Ishidi Eliqinile le-PVC/EVOH/LDPE
I-PVC/EVOH/LDPE Pharmaceutical Packaging
Isithiyo somoya-mpilo kanye nesithiyo somswakama yizinto ezihlukene zokupakisha futhi kufanele zicaciswe ngokwehlukana. Into echazwe kalula 'njengesithiyo esiphezulu' ayinikezi ulwazi olwanele lwezobuchwepheshe ekukhetheni amaphakheji ekhemisi.
I-EVOH isetshenziswa ngokuyinhloko ngenxa yokumelana kwayo kahle ne-oxygen nokunye ukudluliswa kwegesi. Lokhu kungaba wusizo emikhiqizweni esengozini yokuwohloka kwe-oxidative.
I-EVOH ngokwayo iyazwela kumswakama. I-LDPE nezinye izendlalelo ze-polymer ezizungezile zisiza ukuhlukanisa i-EVOH emanzini futhi zibe negalelo ekusebenzeni okuphelele kokuvimbela umswakama kwe-laminate eqediwe.
Imikhiqizo yemithi ene-hygroscopic ephezulu ingadinga ukuvikeleka okunamandla komhwamuko wamanzi kunesakhiwo esijwayelekile se-PVC/EVOH/LDPE esingahlinzeka. Kuye ngedatha yokuzinza, i-PVDC-, i-PCTFE- noma okunye ukwakhiwa okukhethekile okuvimba umswakama ophezulu kungase kudingeke ukuthi kuhlolwe.
I-OTR ikala ukungena kwe-oxygen ngokusebenzisa isakhiwo sokupakisha ngaphansi kwezimo ezichaziwe. Abathengi kufanele banikeze inani eliqondiwe kanye nezinga lokushisa lokuhlola, umswakama ohlobene, indawo yokuhlola nendlela esebenzayo.
I-WVTR ikala ukudluliswa komhwamuko wamanzi futhi kufanele icaciswe ngokuzimela ku-OTR. I-WVTR edingekayo incike ekuzweleni komswakama womkhiqizo kanye nendawo elindelekile yokugcina.
Amanani e-OTR kanye ne-WVTR angashintsha kakhulu ngezinga lokushisa, umswakama kanye nogqinsi lwempahla. Ngakho-ke amanani abahlinzeki kufanele aqhathaniswe kuphela uma izimo zokuhlola zilingana.
I-Thermoforming yelula i-multilayer futhi inciphisa ukushuba kongqimba ezindongeni zomgodi nasemakhoneni. Kuzinhlelo zokusebenza ezibucayi, ukusebenza kwesithiyo kufanele kuhlolwe kuphakheji elakhiwe kanye naseshidini eliyisicaba langempela.
Isendlalelo se-EVOH sinciphisa kakhulu ukungena komoyampilo uma kuqhathaniswa nezakhiwo ze-polymer zempahla evamile futhi singasekela ukuthuthukiswa kokupakishwa kwemikhiqizo ezwela umoya-mpilo.
I-PVC ihlinzeka ngesisekelo esiqinile sesakhiwo se-thermoforming, esiza ukudala izimbotshana eziqinile, amathreyi nezinye izinto zokupakisha eziguquliwe.
Isendlalelo se-LDPE sidala indawo esebenza ngokuvala uphawu futhi singamataniswa nesivalo esifanelekile noma izakhiwo zokukhwelana ngemva kokuhlolwa kophawu.
Izakhiwo ezibonisa ngale zinganikeza ukubonakala komkhiqizo ngenkathi igcina isendlalelo se-EVOH-oxygen-barrier. Izinguqulo ezinemibala ne-opaque nazo zingaxoxwa ngamaphrojekthi adinga ukubukeka okuhlukile okubonakalayo.
Ubukhulu obuphelele kanye nezilinganiso zezingqimba zomuntu ngamunye zingahlolwa ngokuvumelana nokuqina okudingekayo, izinga lokuvimbela, i-geometry yomgodi, izimo zokuvala kanye nenqubo yokuguqula.
Ukusebenza kwe-heat-seal kuncike ohlelweni oluphelele lokuvala. I-LDPE inganikeza isendlalelo se-sealant esisebenzayo, kodwa amandla ophawu awakwazi ukubikezelwa egameni le-polymer kuphela.
Abathengi kufanele banikeze ucwecwe oluqondile lwe-aluminium, ifilimu elaminethiwe, isivalo esixebukayo noma esinye isakhiwo sokukhwelana ngoba ama-sealant ahlukene kanye nama-coatings adinga izimo ezihlukene.
Izinga lokushisa lokuqalisa uphawu, isikhathi sokuhlala, ingcindezi kanye nesivinini somugqa kufanele kusungulwe kusetshenziswa umshini wangempela wokupakisha nezinto zokuvala.
Amaphakheji aqediwe kufanele ahlolwe amandla ophawu, iziteshi, ukuvuza nobuqotho ngaphansi kwezimo ezilindelekile zokuhamba nezokugcina.
I-PVC/EVOH/LDPE ingathuthukiswa ukuze kufakwe i-thermoformed, kodwa uhlaka oluphelele lwesendlalelo kufanele luhlolwe ngaphansi kwezimo zokwakheka ezihlosiwe.
Izimo zokushisa kufanele zivumele ukwakha i-PVC eyanele ngenkathi igwema ukulimala ku-interface ye-laminate noma ukuhlanekezela ngokweqile kwengxenye eqediwe.
Izimbobo ezijulile zidala ukunwebeka okukhulu kwempahla. Nikeza ububanzi bomgodi, ubude, ukujula kanye nejiyomethri yekhona lapho uhlola ukucaciswa okusha kwezendlalelo eziningi.
Imikhiqizo ebucayi ezwela komoyampilo kufanele ihlolwe kusetshenziswa ukuhlolwa kwesithiyo sephakheji esakhiwe ngenxa yokuthi ukujiya kwe-EVOH kungahluka kuyo yonke indawo ngemva kokwelula.
I-laminate kufanele ihlolwe ngemva kokwakhiwa ukuze kuhlukaniswe izingqimba ezingaphakathi, zibe mhlophe, ziqhekeke noma ezinye izinguquko zesakhiwo ngaphambi kokugunyazwa kwezohwebo.
I-PVC/EVOH/LDPE ingahlolelwa amaphilisi, amaphilisi kanye neminye imikhiqizo yomthamo oqinile lapho ukuvikelwa komoyampilo, ukuziphatha okwakhayo nobuqotho bophawu kubalulekile. Imikhiqizo ezwela kakhulu umswakama kufanele ihlolwe ngokuhlukana ngokumelene nezakhiwo ezinamandla zokuvimbela umswakama.
Ama-reagents okuxilonga nezingxenye zokuhlola zingazuza ekufakweni kwesithiyo se-oxygen, kodwa ukuhambisana kufanele kuqinisekiswe nokwakhiwa kwe-reagent yangempela, isendlalelo sokuxhumana nezimo zokulondoloza ezihlosiwe.
Izinhlelo zokusebenza ezikhethiwe zokupakisha uketshezi noma umthamo weyunithi zingahlolwa lapho ungqimba lokuxhumana lwe-LDPE, ukwakheka kophawu nokuhambisana kwamakhemikhali kulungele ukwakheka.
Isakhiwo sezendlalelo eziningi esiqinile singahlolwa ukuze kutholwe amathreyi ezokwelapha noma okunakekelwa kwezempilo adinga ukusebenza kwe-thermoforming kanye ne-oxygen-barrier. Ukupakishwa kwedivayisi yezokwelapha okuyinyumba kudinga ukufaneleka okuhlukene kwephakheji eliphelele kanye nenqubo yokuvala inzalo.
Amavithamini angezwani komoyampilo, izithasiselo kanye nokwakhiwa kwe-nutraceutical kungaba amakhandidethi wokupakisha okusekelwe ku-EVOH lapho ukucaciswa okuphelele komgoqo kufana nemfuneko yokuqina komkhiqizo.
I-PVC/EVOH/LDPE Pharmaceutical Packaging
I-PVC/EVOH/LDPE Medical Packaging
I-Pharmaceutical Solid Dosage & Liquids
I-Capsule Packaging
| Sesakhiwo | Kwesivimbela Esiyinhloko | Ukugxila |
|---|---|---|
| I-PVC/PE | Ukwakha + ukubeka uphawu | Sebenzisa lapho amazinga okuvimbela ajwayelekile anele |
| I-PVC/EVOH/LDPE | Okuthuthukisiwe komoyampilo / umgoqo wegesi + ukubekwa uphawu | Linganisela imikhiqizo ezwela umoya-mpilo edinga amaphakheji abonisa ngale thermoformable |
| I-PVC/PVDC | Umswakama othuthukisiwe kanye nomgoqo we-oxygen | Inketho evamile lapho ukuvikelwa komswakama okunamandla kuyadingeka |
| I-PVC/PE/PVDC | Ukubeka uphawu kanye nomswakama othuthukisiwe / umgoqo wegesi | Linganisa ngokuhambisana nezidingo zokwakha, zokuvala kanye nezithiyo |
| Isakhiwo Esisekelwe ku-PCTFE | Isithiyo somswakama esiphezulu kakhulu | Cabangela imikhiqizo ezwela kakhulu umswakama ngokusekelwe kudatha yokuzinza |
Ishidi lokupakisha lezendlalelo eziningi akufanele lichazwe njengelihambisana mhlaba wonke nayo yonke imithi, izinyibilikisi, uwoyela, ama-reagents okuxilonga noma ukwakheka kwe-biologic. Ukuhambisana kuncike kungqimba yokuxhumana ngqo nomkhiqizo opakishiwe.
Lapho i-LDPE iyindawo yokuxhumana nomkhiqizo, izinga layo eliqondile, izithasiselo nokuhambisana kwayo kufanele kuhlolwe ngokuya ngokwakheka okupakishiwe.
Uketshezi, ama-reagents, uwoyela kanye nezakhi eziqukethe i-solvent kufanele kuhlolwe ukuvuvukala, ukuqhekeka kwengcindezi, ukukhishwa, ukufuduka, ukushintsha kombala kanye nezinguquko ekusebenzeni kwe-seal noma isithiyo.
Ukupakishwa okunezithiyo eziphezulu kungaba nomthelela ekuvikelweni komkhiqizo, kodwa izinto zokupakisha ngokwazo azikwazi ukuqinisekisa impilo yeshelufu yemithi ethile. Impilo yeshelufu yokugcina kufanele isungulwe ngohlelo lokuzinza lomkhiqizi.
Ukufaneleka kokuvala inzalo kuncike ekwakhiweni okuyi-PVC/EVOH/LDPE kanye nobuchwepheshe bokuvala inzalo. Ungacabangi ukuthi isakhiwo esisodwa sihambisana ngokuzenzakalela nesitimu, ukushisa okomile, i-ethylene oxide, imisebe ye-gamma, i-electron beam noma ezinye izinqubo.
Abathengi kufanele banikeze izinga lokushisa lokuvala inzalo, ingcindezi, umthamo wemisebe, isikhathi sokuchayeka kanye nenani lemijikelezo lapho kufanele khona. Iphakheji eliqediwe kufanele lihlolwe ukuguquguquka, ukuguquguquka kombala, i-delamination, ukuguqulwa kwamandla e-seal kanye nokugcinwa kwesithiyo.
Iziqu zokupakisha zezokwelapha nezemithi kufanele zisekelwe emibhalweni yebanga eliqondile lempahla ethengiwe. Isitatimende esijwayelekile 'njengebanga lezokwelapha' noma 'ibanga lezemithi' asithathi indawo yokubuyekezwa kokulawula okuqondene nohlelo lokusebenza.
Abathengi kufanele bacele imininingwane yobuchwepheshe ehlanganisa ukwakheka okuqondile, ukujiya, ukubekezelela, ububanzi kanye nezakhiwo zokusebenza ezifanele.
Lapho kudingwa uhlelo lwekhwalithi yekhasimende, iqoqo langempela lokukhiqiza kufanele lisekelwe yi-COA okuvunyelwene ngayo kunokuthembela kusitifiketi esivela kusakhiwo esihlukile.
Ikhasi le-Wallis elikhona lihlanganisa amadokhumenti alandelayo e-PVC kanye ne-PVDC. Ngenxa yokuthi lo mkhiqizo uyi-PVC/EVOH/LDPE kune-PVC/PVDC, abathengi kufanele bacele amadokhumenti asebenza ngokuqondile ebangeni langempela le-PVC/EVOH/LDPE elifaneleka.
Qinisekisa ukusebenza kwesithiyo se-oxygen ngaphansi kwezimo zokuhlola ezihambisana nomkhiqizo oqediwe nendawo yokugcina.
Kala ukudluliswa komhwamuko wamanzi ngokuzimela lapho ukwakheka kwemithi kuzwela umswakama.
Linganisa ukwakheka komgodi, ukusatshalaliswa kogqinsi, ukumhlophe, ukuqhekeka kanye nokuzinza kwe-interlayer empahleni ehlosiwe yokwakha.
Hlola indawo eqondile ye-LDPE kanye nezinto ezihlosiwe zokuvala ukuze uthole iwindi lokukhiqiza elisebenzayo.
Izicelo zokuthintwa ngqo kufanele zihlolwe kusetshenziswa ukwakhiwa kwemithi, ukuxilonga noma ukunakekelwa kwezempilo.
Iziqu zokupakisha kufanele zibandakanye ukugcinwa kommeleli, izimo zokuhamba kanye nokuzinza ngaphambi kokuba impahla ivunyelwe ukusetshenziselwa ukuhweba.
Ukushuba okuphelele kungaxoxwa phakathi kwebanga lokukhiqiza ngokuya ngokuqina, i-cavity geometry kanye nokwakhiwa kokupakisha kokugcina.
Isendlalelo se-EVOH kufanele sidizayinwe ngokuya ngethagethi edingekayo yesivimbelo se-oxygen kunokukhetha isilinganiso sogqinsi esinganaki.
Ukujiya kwe-LDPE kanye nebanga kungahlolwa ngokuya ngezinto zokuvala, indlela yokuvala kanye nezidingo zokuxhumana nomkhiqizo.
Ububanzi beroli kanye nobukhulu bokusikwa ngaphambili bungafaniswa ne-thermoforming, ukuvala uphawu nokuguqula imishini ngaphakathi kwebanga lokukhiqiza elitholakalayo.
Okungafihli, okumhlophe, okuphuzi, okusawolintshi obala kanye nemibala eyenziwe ngokwezifiso kungaxoxwa ngakho. Izidingo zokuvikela ukukhanya kufanele zichazwe ngokuhlukene lapho kubalulekile ukutholakala kwezithombe zemithi.
Thola ukuthi ingabe iphakethe liqukethe amaphilisi, amaphilisi, izimpushana, izinto ezisiza ukuxilonga, uketshezi, izingxenye zokwelapha noma omunye umkhiqizo.
Nikeza ngezidingo zesendlalelo se-PVC/EVOH/LDPE noma i-TDS yamanje uma imiselela okokusebenza okukhona.
Cacisa ingqikithi yogqinsi oluqondiwe kanye nezidingo zesendlalelo ngasinye uma sesivele simisiwe.
Nikeza izinga lokudlulisa umoya-mpilo elidingekayo kanye nezinga lokushisa, umswakama ohlobene nendlela yokuhlola.
Nikeza isilinganiso esidingekayo sokudluliswa komhwamuko wamanzi nezimo zokuhlola ezifanele lapho ukuvikela umswakama kubalulekile.
Cacisa ububanzi bomqulu, usayizi weshidi, usayizi oyinhloko kanye nobukhulu bobukhulu beroll ngokuya ngemishini yokuguqula.
Bandakanya imodeli yomshini wokwakha, ubukhulu bomgodi, ukujula komdwebo kanye nebanga lokushisa elikhona lapho litholakala khona.
Khomba impahla yesivalo sokukhwelana kanye nezinga lokushisa lokuvala, ingcindezi, isikhathi sokuhlala kanye nesivinini sokukhiqiza.
Uma kusebenza, hlinzeka ngendlela yokuvala inzalo, izinga lokushisa noma umthamo wemisebe, isikhathi sokuchayeka kanye nezidingo zomjikelezo.
Nikeza ngezwe okuyiwa kulo kanye nezimfuneko ezisebenzayo zemithi, idivayisi yezokwelapha, yokuxhumana nomkhiqizo noma imibhalo eqondene nekhasimende.
Bandakanya inani lesampula, inani leziqu, i-oda lenqwaba yokuqala kanye nevolumu yokuthenga yonyaka okulindelekile lapho itholakala.
I-Pharmaceutical Material Packaging Production Line
Ukubambisana Kwamakhasimende
Ukubambisana kwamazwe ngamazwe kwe-B2B
Umbukiso wokupakisha
Umbukiso Wokupakishwa Kwemithi
Kuyisakhiwo sokupakisha esiqinile noma esiqinile kancane esihlanganisa i-PVC yokusekelwa kwesakhiwo kanye ne-thermoforming, i-EVOH yokuvimbela umoya-mpilo negesi, kanye ne-LDPE yokuvala uphawu nokuvikela umswakama.
I-EVOH isetshenziswa ngokuyinhloko ukunciphisa umoya-mpilo kanye nokudluliswa kwegesi. Kuwusizo ikakhulukazi lapho umkhiqizo opakishiwe uzwela ukuwohloka kwe-oxidative.
I-EVOH ngokuyinhloko iyisithiyo somoya-mpilo negesi futhi izwela umswakama. I-LDPE ezungezile nezinye izendlalelo ze-polymer zivikela i-EVOH futhi zifaka isandla ekusebenzeni kokuswakama okuphelele kwesakhiwo. Imikhiqizo ezwela kakhulu umswakama ingase idinge esinye isakhiwo esizinikele esivimbela umswakama ophezulu.
Ibanga lamanje lomkhiqizo we-Wallis libala cishe ugqinsi oluphelele luka-0.055–2.00 mm. Izilinganiso zokugcina zesendlalelo kanye nokubekezelelana kokuqina kufanele kuqinisekiswe ngokuvumelana nesithiyo esidingekayo, ukwakheka nokusebenza kokuvala.
Uhlu lwamanje lomkhiqizo lubala ububanzi obucishe bube ngu-50–1400 mm, kanye nama-rolls namashidi asikwe ngaphambilini atholakalayo ngokuya ngephrojekthi.
Izinketho zamanje zifaka okusawolintshi okukhanyelayo, okumhlophe, okuphuzi nokukhanyelayo, okunemibala eyengeziwe yangokwezifiso namazinga okukhanya angaphansi kwezidingo zephrojekthi.
Izakhiwo ezifanele zingashintshwa zibe yizimbotshana noma amathreyi. Izinga lokushisa lokwakha, ukujula komgodi, isilinganiso sokudweba kanye nokugcinwa kwezithiyo kufanele kuqinisekiswe kusetshenziswa okokusebenza kwangempela kokukhiqiza.
Izinhlelo zokusebenza ze-deep-draw zingahlolwa, kodwa ukujula kokwakheka okukhulu kubangela ukunwebeka okwengeziwe. Ukuzinza kwesendlalelo, ukujiya kodonga kanye nesithiyo sephakheji esakhiwe kufanele kuhlolwe ngaphambi kokugunyazwa.
Ukuhambisana kwe-seal kuncike ebangeni le-LDPE kanye nokwembozwa kophawu lokushisa lwe-aluminium foil. Iwebhu yokwakha yangempela kanye ne-liding foil kufanele ihlolwe ndawonye ukuze kutholakale iwindi lokuvala elilungile.
I-OTR efanele incike ekuzweleni komoyampilo womkhiqizo opakishiwe kanye nempilo yeshelufu edingekayo. Nikeza inani eliqondiwe kanye nezinga lokushisa, umswakama ohlobene kanye nendlela yokuhlola ehlosiwe.
I-WVTR edingekayo incike ekuzweleni komswakama womkhiqizo nendawo yokubeka. Imikhiqizo ene-hygroscopic ephezulu ingadinga isakhiwo esilungiselelwe ngokukhethekile ukuvikela okuqinile komhwamuko wamanzi.
I-PVC/EVOH/LDPE igcizelela kakhulu isithiyo komoyampilo se-EVOH esihlanganiswe nokuvalwa kwe-LDPE. Izakhiwo ze-PVC/PVDC zivame ukukhethwa lapho kokubili umswakama kanye nokuvimbela igesi kudingeka kwandiswe. Isakhiwo esifanele kufanele sikhethwe ekuzinzeni kwangempela kanye nezidingo zokuvimbela.
Kuya nge-WVTR edingekayo kanye nomklamo wephakheji ophelele. Ngezidakamizwa ezizwela kakhulu umswakama, i-PVDC-, i-PCTFE- noma esinye isakhiwo esizinikezele sokuvimbela umswakama ophezulu kungase kudingeke ukuthi sihlolwe.
Ukuhambisana akunakucatshangwa kukho konke ukwakhiwa. Izinhlelo ezithintana ngqo kufanele zihlolwe kusetshenziswa uketshezi lwangempela noma i-reagent kanye nongqimba lokuxhumana olukhethiwe lwe-LDPE.
Ukuhambisana nokuvala inzalo kuncike ekwakhekeni kwezingqimba eziningi kanye nenqubo yokuvala inzalo. Nikeza indlela, izinga lokushisa, umthamo noma ingcindezi nezimo zomjikelezo ukuze ukusebenza kwephakheji kuhlolwe.
Alikho igama lempahla ejwayelekile eliqinisekisa ukugunyazwa ngokomthetho kulo lonke uhlelo lokusebenza. Ukufaneleka kuncike ebangeni eliqondile, izimo zokuthintwa komkhiqizo, ifomu lomthamo, imakethe yendawo kanye nezimfuneko zokulawula ezisebenzayo noma zekhasimende.
Yebo. Ukuhlolwa kwesampula kunconyelwe i-OTR, i-WVTR, i-thermoforming, ukuvala ukushisa, ukuhambisana komkhiqizo, ukujiya, umbala nokuhlolwa komugqa wokukhiqiza ngaphambi kokugunyazwa kwezentengiso.
Sicela unikeze ngomkhiqizo opakishiwe, isakhiwo esidingekayo, ugqinsi oluphelele, i-OTR eqondiwe kanye ne-WVTR, ubukhulu beroli noma ishidi, izimo zokwakheka, okokufaka kwesivalo, izimo zokuvala, izidingo zokuvala inzalo, izimfuneko zokulawula kanye nenani elilinganiselwe lokuthenga.
Thumela u-Wallis isakhiwo sakho esidingekayo, ukujiya, ububanzi, okuqondiwe kwe-OTR/WVTR, ubukhulu bendawo, isistimu yokuvala, izidingo zokuxhumana nomkhiqizo kanye nenani elilinganiselwe lokuthenga. Singaxoxa ngamashidi aqinile e-PVC/EVOH/LDPE enziwe ngezifiso amaphrojekthi okupakisha emithi, okuxilonga nawokupakisha.
Uma ushintsha impahla ekhona enesithiyo esiphezulu, hlinzeka nge-TDS yamanje, iphakheji elakhiwe noma isampula yereferensi ukuze izithiyo, i-thermoforming kanye nezidingo zokuvala zihlolwe ngaphambi kokukhiqizwa kwezentengiso.
