Ukusetshenziswa Koyinki Wokuvikelwa Kwemvelo Osuselwe Emanzini Ekupakishweni Kokudla Isithombe Esifakiwe

Ukusetshenziswa Koyinki Wokuvikelwa Kwemvelo Esekelwe Emanzini Ekupakishweni Kokudla

Incazelo emfushane:

Njengohlobo olusha lwezinto zokupakisha nokuphrinta, inzuzo enkulu ye-inki esekelwe emanzini ukuthi ayinazo izinyibilikisi zemvelo eziguquguqukayo.Ukusetshenziswa kwayo kunciphisa inani lezinto eziphilayo ezishintshashintshayo (VOCs), akulimazi impilo yabakhiqizi beyinki nabanyathelisi, futhi kuthuthukisa ikhwalithi yemvelo.Ngakho-ke, ingabizwa ngokuthi inkino yemvelo.Izici ezinkulu zikayinki osuselwe emanzini akukhona ukungcoliswa kwemvelo, akukho mthelela empilweni yomuntu, akukho ukusha, nokuphepha okuhle.Akukwazi nje ukunciphisa ubuthi obusele ebusweni bemikhiqizo ephrintiwe, kwenze kube lula ukuhlanza imishini yokunyathelisa, kodwa futhi kunciphise ingozi yomlilo ebangelwa ugesi omile kanye nezincibilikisi ezivuthayo.Ngaphezu kokuvikelwa kwemvelo, izici zokuphrinta zikayinki osekelwe emanzini nazo zinhle.I-inki esekelwe emanzini inokusebenza okuzinzile, ayigqwali ipuleti, ukusebenza okulula, intengo ephansi, ukunamathela okuhle ngemva kokunyathelisa, ukumelana kwamanzi okuqinile nokomisa ngokushesha.Ama-inki asekelwe emanzini awasetshenziswa kuphela ekunyatheliseni kwe-flexographic kanye nokunyathelisa kwesikrini okunamandla amakhulu okuthuthukiswa.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

I-Development Prospect And Trend Of Waterborne Ink

Uyinki osuselwe emanzini ubizwa ngokuthi uyinki osuselwe emanzini ngamafuphi.I-flexographic water-based inki ibizwa nangokuthi i-liquid inki.Ikakhulukazi yenziwe nge-resin encibilika emanzini, i-organic pigment, i-solvent nezinye izithasiselo ezihlobene nokugaya okuhlanganisiwe.I-aqueous resin iwuhlobo olusha lwesistimu ye-resin esebenzisa amanzi esikhundleni se-organic solvent njengendlela yokuhlakazeka.Ihlanganiswe namanzi ukwenza isisombululo.Ngemva kokuba amanzi eguquguquka, kwakheka ifilimu ye-resin.I-resin esekelwe emanzini ayiyona i-resin-based based resin ngokwayo kodwa into yefilimu etholakala ngemva kokuguqulwa kwamanzi.I-Waterborne polyurethane, njengommeleli, ingasetshenziswa kabanzi embotsheni, ekunamathiseleni, embotsheni yendwangu kanye nama-ejenti wokuqeda, ama-agent okuqeda isikhumba, ama-ejenti okwelapha angaphezulu kwephepha kanye nama-ejenti okwelashwa kwe-fiber surface.I-inki esekelwe emanzini ifaneleka ngokukhethekile ukudla, isiphuzo, imithi, ugwayi, iwayini, amathoyizi ezingane kanye neminye imikhiqizo yokupakisha nokunyathelisa enezidingo eziqinile zokuhlanzeka, esikhundleni semikhiqizo esekelwe ku-solvent emikhakheni ehlukahlukene.Njengenye yezinto ezinhlanu zokunyathelisa, uyinki osuselwe emanzini udlala indima ebalulekile enqubweni yokunyathelisa kanye nekhwalithi yokunyathelisa.Ukwabiwa okuphusile kukayinki kuyisixhumanisi esibalulekile sokuqinisekisa ikhwalithi yemikhiqizo ephrintiwe.Uyinki osuselwe emanzini ube nengxenye enkulu ekuphrinteni kwe-flexographic ngenxa yezinzuzo zayo zokuvikela imvelo nomnotho.
Ukuthuthukiswa okuqinile kwemboni yokuphrinta yokupakisha okuluhlaza kuzoqinisa ukuncintisana emakethe ye-inki yokuphrinta ye-offset.Manje abakhiqizi be-inki bathumele isignali yokuthi izindleko zezinto zokusetshenziswa kwe-inki zikhuphuke kakhulu, okuzokwandisa izindleko zokukhiqiza nokucubungula.Lokhu kubangelwa ikakhulukazi ukushoda komhlaba wonke kochungechunge lwama-ejenti amakhemikhali, okuyizinto zokusetshenziswa ezibalulekile ekukhiqizeni uyinki.Kuze kube manje, ukukhuphuka kwentengo kawoyela ongahluziwe kanye nokuphuma kwe-petrochemical kuyisizathu esiyinhloko sokwenyuka kwamanani e-inki.Kodwa-ke, ngisho noma intengo kawoyela yehla, ngenxa yokuthi imboni ye-inki ihlaselwa ukushoda kwezinto zokusetshenziswa zamakhemikhali, ikakhulukazi izinto zokusetshenziswa njenge-nitrocellulose, i-acrylic acid, i-acetic acid ne-titanium dioxide, intengo kayinki isazokhuphuka kuphela.Njengamanje, amazwe athuthukile nezifunda azama ukuthuthukisa nokusebenzisa uyinki ukuze ashintshe kancane kancane uyinki osuselwe ku-solvent.Ukupakisha ukuphrinta ngokuphrinta kweyinki okusekelwe emanzini njengento eyinhloko yokuthuthukiswa kuye kwakha inkambiso emhlabeni.

Izici Zesakhiwo Soyinki Osekelwe Ngamanzi: Umehluko Phakathi Kwe-ejenti Noyinki Osekelwe Ngamafutha

Ikhwalithi ye-polyurethane kayinki ikakhulukazi isebenzisa i-aliphatic polyester kanye ne-aliphatic isocyanate njengezinto zokwenziwa eziyinhloko ekulungiseni.Uma iqhathaniswa ne-polyurethane enamakha, eyokuqala inokuqina okuhle kakhulu kokubona futhi ifilimu ngemuva kokwakheka kwefilimu inokumelana nokuphuzi okungcono.Kunamaqembu amhlophe njenge-carbamate, i-urethane, i-ester bond kanye ne-ether bond engxenyeni ye-polyurethane molecular chain kayinki, akha amabhondi e-hydrogen namaqembu asezindaweni ezishisayo ebusweni bezindawo ezihlukahlukene ze-polar njengezilwane ezifuywayo kanye ne-PA, ngaleyo ndlela zakhe inhlanganisela amandla athile okuxhumana.Ngemuva kokuthi i-polyurethane resin eguquliwe yenziwe uyinki, ingaphrintwa ebusweni be-polar plastic substrate ngokunamathela okuhle kokunamathela.I-polyurethane resin kayinki ngokuvamile ilungiswa nge-polyester noma i-polyether polyol, i-ester ring diisocyanate kanye ne-diamine chain extender.Ngenxa yokwethulwa kwesibopho se-urea ku-polyurethane resin, kwakheka i-polyurethane urea resin (PUU) enezinto ezinhle zokumanzisa nokuhlakaza umbala.
I-polyurethane resin kayinki inokuhambisana kahle ne-aldehyde ketone resin, i-chloroacetic resin, njll. ingangezwa kahle kufomula yenqubo ngokuya ngesimo sangempela ukuze kuthuthukiswe ukusebenza okuphelele kukayinki.I-polyurethane resin kayinki ilungiswa ngokwethula iqembu le-urea engxenyeni yengqamuzana ye-polyurethane yendabuko, ethuthukisa kakhulu amandla okuhlangana kanye nesakhiwo sokwenza ifilimu ye-resin ngokwayo.I-polyurethane resin yendabuko inokuhlukahluka okuhlukahlukene kokuxubene nezincibilikisi eziphilayo.Kodwa-ke, ngesikhathi sokulungiselela uyinki, ukuze ulungise ukugeleza kwe-inki nokubonakala kwe-viscosity, kuyadingeka ukwengeza ama-solvents e-alcohol, okuzonciphisa kakhulu ukuzinza kwesistimu ye-resin futhi kubangele i-turbidity, imvula ye-flocculent nezinye izenzakalo zendabuko. I-polyurethane resin.Engxenyeni yamangqamuzana e-polyurethane resin yokuphrinta uyinki, ngenxa yokuba khona kweqembu le-urea, i-polyurethane resin notshwala kungancibilika.Kodwa-ke, kufanele kuqashelwe ukuthi i-solvent yotshwala iseyi-solvent ye-pseudo.Esimeni esincane kakhulu, isincibilikisi sotshwala simboza kuphela i-polyurethane resin molecule, esikhundleni sokungena ku-molecular polarity ku-molecule njenge-solvent yangempela, ukuze uyinki olungiselelwe nge-polyurethane resin ube nomswakama omuhle.
Umehluko omkhulu phakathi kukayinki osuselwe emanzini kanye noyinki osuselwa kuwoyela yi-solvent.Uyinki osekelwe emanzini usebenzisa amanzi (45% - 50%) njengesincibilikisi, esinokuqukethwe okuphansi kwe-VOC nokungcoliswa kwemvelo okuncane;Uyinki onamafutha usebenzisa izincibilikisi zemvelo (i-toluene, ixylene, utshwala bezimboni, njll.) njengesincibilikisi.Uyinki osuselwe emanzini usebenzisa i-solvent yamanzi ne-soluble emanzini njengezingxenye eziyinhloko zesisekelo sombala esincibilikisiwe;Kukhona futhi uyinki odayi kanye noyinki wombala kuyinki osuselwe emanzini, futhi i-pH ngokuvamile ayithathi hlangothi;Uwoyela nawo unoyinki kadayi noyinki wombala, futhi i-pH ngokuvamile ine-asidi.Uyinki osuselwe emanzini noyinki osuselwe emafutheni awukwazi ukuxutshwa ekhanda lokuphrinta elifanayo.
Kuyinki osekelwe emanzini, i-resin esekelwe emanzini iyingxenye ebalulekile ye-inki esekelwe emanzini.Into yokuxhuma uyinki ithinta ngokuqondile ukusebenza kokunamathela, isivinini sokumisa, ukusebenza kwe-anti fouling nokumelana nokushisa kukayinki, futhi kuthinta nokusebenza kokucwebezela nokudlulisa uyinki.Ngakho-ke, ukukhethwa kwe-resin esekelwe emanzini efanelekile kuyisihluthulelo sokulungiselela uyinki osekelwe emanzini.Kumelwe ibe nokuhlobana okuhle nama-colorants, ukushesha kokunamathela okuphezulu ngemva kokunyathelisa nokwakheka kwefilimu, ukumelana nokugqokwa, ukumelana nokuklwebheka, ukumelana nokushisa okuhle, ukunqamula ukuxhumana kalula kanye nokwakheka kwefilimu.Ama-resin asetshenziswa kakhulu emanzini afaka i-polyurethane resin yamanzi, i-acrylic resin, i-polyvinyl alcohol ne-epoxy resin.
I-polyurethane resin yasemanzini ihlakazeka emanzini ngokwethula amaqembu e-hydrophilic ochungechungeni lwamangqamuzana e-polyurethane.I-polyurethane resin yamanzi inezinzuzo zokusebenzisa okulula, ukusebenza okuzinzile, ukunamathela okuqinile, ukucwebezela okuphezulu kanye nokumelana nokushisa okuhle.Kungaba ngokufanele izindlela ezihlukahlukene zokunyathelisa, ikakhulukazi ukuphrinta isikrini, amabhokisi okupakisha epulasitiki namafilimu ayinhlanganisela.