Ibiranga nubuhanga bwo gucapa wino ishingiye kumazi kumpapuroagasanduku ka shokora
Irangi rishingiye kumazi nigicuruzwa cyangiza ibidukikije cyitabiriwe cyane mumyaka yashizeagasanduku. Ni irihe tandukaniro riri hagati ya wino ishingiye ku mazi na wino rusange yo gucapa, kandi ni izihe ngingo zikeneye kwitabwaho mu gukoresha? Hano, Meibang azagusobanurira birambuye kuri wewe.
Irangi rishingiye ku mazi ryakoreshejwe mugucapisha impapuro zometse igihe kinini mumahanga no mumyaka irenga 20 murugo. Gucapura impapuro zacishijwe bugufi byateye imbere kuva icapiro (icapiro ryubutabazi), icapiro rya offset (icapiro rya offset) hamwe na reberi yamashanyarazi yogejwe kugeza icapiro ryoroshye ryamazi ashingiye kumazi. Ihinduka ryoroshye ryamazi ashingiye kuri wino nayo yateye imbere kuva acide ya rosin-manic yahinduwe resin ikurikirana (urwego rwo hasi) kugeza acrylic resin series (urwego rwo hejuru). Isahani yo gucapa nayo iva mu isahani yerekeza ku isahani. Imashini icapura nayo yagiye itera imbere gahoro gahoro kuva ibara rimwe cyangwa amabara abiri afite imashini nini kugeza kumabara atatu cyangwa amabara ane ya FLEXO.
Ibigize nibiranga wino ishingiye kumazi ni nkibya wino rusange yo gucapa. Irangi rishingiye kumazi mubusanzwe rigizwe namabara, binders, abafasha nibindi bice. Amabara ni amabara ya wino ashingiye kumazi, atanga wino ibara ryihariye. Kugirango ugaragaze neza mu icapiro rya flexografiya, amabara asanzwe akoresha pigment ifite imiti ihamye kandi ifite amabara menshi; Binder igizwe n'amazi, resin, ibimera bya amine nibindi bimera. Resin nikintu cyingenzi mubice byamazi ashingiye kumazi. Amazi ashonga acrylic resin isanzwe ikoreshwa. Ibigize binder bigira ingaruka kumikorere ya adhesion, umuvuduko wo kumisha, imikorere irwanya-gufatira, nibindi bya wino, kandi bigira ingaruka kumurabyo no kwanduza wino. Amine ivanze ahanini igumana agaciro ka alkaline PH ya wino ishingiye kumazi, kugirango resin ya acrylic itange ingaruka nziza zo gucapa. Amazi cyangwa andi mashanyarazi akoreshwa cyane cyane ashonga, Hindura ubwiza bwumuvuduko wumye wino; Ibikoresho bifasha cyane cyane birimo: defoamer, blocker, stabilisateur, diluent, nibindi.
Nkuko wino ishingiye kumazi ari isabune, biroroshye kubyara ibibyimba bikoreshwa, bityo amavuta ya silicone agomba kongerwamo nka defoamer kugirango abuze kandi akureho ibibyimba, kandi atezimbere imikorere ya wino. Inzitizi zikoreshwa mukubuza umuvuduko wumye wino ishingiye kumazi, kubuza wino gukama kumuzingo wa anilox no kugabanya paste. Stabilisateur irashobora guhindura PH agaciro ka wino, kandi irashobora no gukoreshwa nkumuti wo kugabanya ububobere bwa wino. Amazi akoreshwa mu kugabanya ibara rya wino ishingiye ku mazi, kandi irashobora no gukoreshwa nk'urumuri kugira ngo urumuri rwa wino rushingiye ku mazi. Byongeye kandi, ibishashara bimwe bigomba kongerwamo wino ishingiye kumazi kugirango byongere imbaraga zo kwambara.
Irangi rishingiye ku mazi rishobora kuvangwa n'amazi mbere yo gukama. Irangi rimaze gukama, ntirizongera gushonga mumazi na wino. Kubwibyo, wino ishingiye kumazi igomba gukangurwa byuzuye mbere yo kuyikoresha kugirango irangi irangire. Iyo wongeyeho wino, niba wino isigaye muri tank yino irimo umwanda, igomba kubanza kuyungurura, hanyuma igakoreshwa na wino nshya. Mugihe cyo gucapa, ntureke ngo wino yumuke kumuzingo wa anilox kugirango wirinde guhagarika umwobo. Guhagarika ihererekanyabubasha rya wino bitera gucapa bidahungabana. Mugihe cyo gucapa, flexplate igomba guhora ihanaguwe na wino kugirango wirinde guhagarika igishushanyo cyanditse kuri plaque nyuma yuko wino yumye. Byongeye kandi, usanga iyo ubwiza bwa wino ishingiye ku mazi ari hejuru gato, ntibikwiye ko wongeramo amazi byanze bikunze kugirango wirinde kugira ingaruka kuri wino. Urashobora kongeramo urugero rukwiye rwa stabilisateur kugirango uhindure.
Igihe cyo kohereza: Werurwe-15-2023
