Umhlahlandlela: Ukuphrinta kukasilika kuyinqubo evame kakhulu yokuphrinta imidwebo ekwenzeni izinto zokupakisha zezimonyo. Ngenhlanganisela kayinki, isikrini sokuphrinta isikrini, nezinto zokuphrinta zesikrini, uyinki udluliselwa ku-substrate nge-mesh yengxenye yesithombe. Phakathi nenqubo, ukuphrinta kwesikrini Umbala uzothintwa ezinye izici futhi ushintshe. Lesi sihloko sihlanganiswe nguiphakethe le-shanghai rainbow, futhi ngizokwabelana nawe ngezinto ezimbalwa ezithinta ukushintsha kombala kwesikrini sikasilika.
ukuphrinta kwesikrini
Inqubo yokuphrinta isikrini iwukuthi uyinki udlula engxenyeni ye-mesh yesikrini bese uvuza ku-substrate. Ingxenye esele yesikrini ivinjiwe futhi uyinki awukwazi ukungena. Lapho uphrinta, uyinki uthululwa esibukweni. Ngaphandle kwamandla angaphandle, uyinki ngeke avuze nge-mesh kuya substrate. Uma i-squeegee iklwebha uyinki ngokucindezela okuthile kanye ne-engeli yokutsheka, izodlulisa esikrinini. Ku-substrate elandelayo ukuze uthole ikhophi yesithombe.
01 Ukuhlanganisa uyinki
Uma kucatshangwa ukuthi izingulube kuyinki zakhiwe kahle, imbangela evamile yokushintsha kombala i-solvent eyengeziwe. Endaweni yokusebenzela elawulwa kahle, inki kufanele inikezwe emshinini wokunyathelisa nganoma yisiphi isikhathi ngemva kokuba isilungile, okusho ukuthi, iphrinta akufanele ixube uyinki. Ezinkampanini eziningi, u-inki awulungiswa futhi unikezwe emshinini wokunyathelisa, kodwa ushiyelwa kumaphrinta ukuba alungise, bese bengeza futhi baxube uyinki ngokuvumelana nemizwa yabo. Ngenxa yalokho, ibhalansi ye-pigment kuyinki iphukile. Kuyinki ovamile osuselwe emanzini noma uyinki we-UV, amanzi ayinki asebenza ngendlela efanayo nesincibilikisi kuyinki we-solvent. Ukwengeza amanzi kuzonciphisa ifilimu ye-inki eyomile futhi kuthinte umbala weyinki, ngaleyo ndlela kunciphise ukuminyana kombala. . Izizathu zezinkinga ezinjalo zingalandelelwa ngokuqhubekayo.
Endaweni yokugcina uyinki, izisebenzi zokuxuba uyinki azisebenzisi idivayisi yokukala, futhi zithembele kuphela ekwahluleleni kwazo siqu ukwengeza inani elifanele le-solvent, noma ukuxuba kokuqala akulungile, noma inani lokuxuba uyinki lishintshile ngesikhathi sokuphrinta, ukuze uyinki oxubile uzoba Khiqiza imibala ehlukene. Lapho lo msebenzi unyatheliswa futhi esikhathini esizayo, lesi simo sizoba sibi nakakhulu. Ngaphandle uma kunoyinki owanele wokurekhoda, cishe akunakwenzeka ukukhiqiza kabusha umbala.
02 Ukukhetha isikrini
Ububanzi bocingo lwesikrini kanye nendlela yokweluka, okungukuthi, i-plain noma i-twill, kunethonya elikhulu kubukhulu befilimu kayinki ephrintiwe. Umphakeli wesikrini uzohlinzeka ngolwazi oluningiliziwe lwezobuchwepheshe lwesikrini, ivolumu yeyinki yetiyori ebaluleke kakhulu, emele inani likayinki elidlula kunemeshi yesikrini ngaphansi kwezimo ezithile zokuphrinta, ngokuvamile ezivezwa ngo-cm3/m2. Isibonelo, isikrini esingu-150 mesh/cm esinobubanzi bemeshi obungu-31μm sizokwazi ukudlula u-11cm3/m2 kayinki. I-mesh enobubanzi obungu-34μm kanye nesikrini se-150-mesh izodlula u-6cm3 kayinki imitha yesikwele ngayinye, okulingana nezingqimba zikayinki ezimanzi ezingu-11 no-6μm. Kungabonakala kulokhu ukuthi ukumelwa okulula kwe-150 mesh kuzokwenza ukuthi uthole ukujiya kongqimba lweyinki okuhluke kakhulu, futhi umphumela uzodala umehluko omkhulu embala.
Ngokuthuthukiswa kobuchwepheshe bokweluka i-wire mesh, kuyadingeka ukuthola inombolo ethile ye-twill wire mesh esikhundleni se-plain wire mesh. Nakuba lokhu ngezinye izikhathi kungenzeka, ithuba lincane kakhulu. Kwesinye isikhathi abahlinzeki besikrini bagcina izikrini ze-twill ezindala. Ngokuvamile, ivolumu ye-inki yethiyori yalezi zikrini ihluka ngo-10%. Uma usebenzisa isikrini se-twill weave ukuze uphrinte izithombe ezinezinhlamvu ezinhle, isenzakalo sokuphuka komugqa ocolekileyo singaphezu kwalokho kwesikrini se-plain weave.
03Ukushuba kwesikrini
Ukucindezela okuphansi kwesikrini kuzobangela ukuthi isikrini sihlukane kancane nendawo ephrintiwe, okuzophazamisa ukuhlala kwe-inki esikrinini futhi kubangele imiphumela efana nokungalingani kombala. Ngale ndlela, umbala ubonakala ushintshile. Ukuze uxazulule le nkinga, ibanga lesikrini kufanele linyuswe, okungukuthi, ibanga phakathi kwepuleti lesikrini elibekwe ngokuvundlile kanye nezinto zokuphrinta kumele linyuswe. Ukwandisa ibanga lesikrini kusho ukukhulisa ukucindezela kwe-squeegee, okuzothinta inani likayinki odlula esikrinini futhi kubangele izinguquko ezengeziwe kumbala.
04Ukusetha kwe-squeegee
Uma kusetshenziswa i-squeegee, uyinki uzodlula esikrinini. Uma ukucindezela okukhulu ku-squeegee, i-blade enqenqemeni ye-squeegee igqoka ngokushesha ngesikhathi sokuphrinta. Lokhu kuzoshintsha indawo yokuxhumana phakathi kwe-squeegee nento ephrintiwe, okuzophinde kuguqule inani likayinki odlula esikrinini, futhi ngaleyo ndlela Ibangele ukushintsha kombala. Ukushintsha i-engeli ye-squeegee kuzophinde kuthinte inani lokunamathela kukayinki. Uma i-squeegee igijima kakhulu, lokhu kuzonciphisa ukushuba kongqimba lukayinki olunamathiselwe.
05Ukusetha ummese wokubuyisela uyinki
Umsebenzi wombese obuyisela uyinki uwukugcwalisa izimbobo zesikrini ngenani elizinzile likayinki. Ukulungisa ukucindezela, i-engeli kanye nobukhali bommese obuyisela uyinki kuzobangela ukuthi inetha ligcwale kakhulu noma ligcwale kancane. Ukucindezela okwedlulele kommese wokubuyisela uyinki kuzophoqa ukuthi uyinki udlule enezikhala, okubangele ukunamathela kukayinki ngokweqile. Ukucindezelwa okunganele kommese obuyisela uyinki kuzobangela ingxenye kuphela yemeshi ukuthi igcwaliswe ngoyinki, okuholela ekunamatheleni kweyinki okunganele. Isivinini sokugijima sommese wokubuyisela uyinki sibaluleke kakhulu. Uma igijima kancane kakhulu, uyinki uzochichima; uma igijima kakhulu, izobangela ukushoda kwe-inki okukhulu, okufana nomphumela wokushintsha isivinini sokugijima se-squeegee.
06Ukulungiselelwa komshini
Ukulawula inqubo ngokucophelela kuyisici esikhulu esibalulekile. Ukulungiswa okuzinzile nokuqhubekayo komshini kusho ukuthi umbala uzinzile futhi awuguquki. Uma ukulungiswa komshini kushintsha, umbala uzolahlekelwa ukulawula. Le nkinga ngokuvamile iba lapho izisebenzi ezinyathelisayo zishintsha amashifu, noma kamuva izisebenzi zokunyathelisa zishintsha izilungiselelo emshinini wokunyathelisa ngokuthanda kwazo ukuze zivumelane nemikhuba yazo, eyobangela ukushintsha kombala. Umshini wakamuva wokuphrinta isikrini esinemibala eminingi usebenzisa isilawuli esizenzakalelayo sekhompuyutha ukuqeda lokhu okungenzeka. Yenza lezi zilungiselelo ezizinzile nezingaguquguquki zomshini wokuphrinta futhi ugcine lezi zilungiselelo zingashintshiwe kuwo wonke umsebenzi wokuphrinta.
07Izinto zokuphrinta
Embonini yokuphrinta isikrini, isici esivame ukunganakwa ukuhambisana kwe-substrate ezophrintwa. Iphepha, amakhadibhodi kanye nepulasitiki okusetshenziselwa ukuphrinta ngokuvamile kukhiqizwa ngamaqoqo. Umhlinzeki wekhwalithi ephezulu angaqinisekisa ukuthi yonke inqwaba yezinto azihlinzekayo zinokushelela okuhle kwendawo, kodwa izinto azihlali zinjalo. Ngesikhathi sokucutshungulwa kwalezi zinto, noma yiluphi ushintsho oluncane enqubweni luzoshintsha umbala nombala wento. Ukuqedwa kobuso. Uma lokhu sekwenzekile, umbala ophrintiwe ubukeka ushintsha, nakuba kungekho okushintshile phakathi nenqubo yokuphrinta yangempela.
Uma sifuna ukuphrinta iphethini efanayo ezintweni ezihlukahlukene, kusukela ebhodini likathayela ukuya ekhadini lobuciko obuhle, njengesikhangiso sokukhangisa, amaphrinta azohlangabezana nalezi zinkinga ezingokoqobo. Enye inkinga esivame ukuhlangana nayo ukuthi ukuphrinta kwesikrini kwethu kufanele kuhambisane nesithombe se-offset. Uma singakunaki ukulawulwa kwenqubo, asinalo ithuba. Ukulawulwa kwenqubo okucophelela kuhlanganisa ukukalwa kombala okunembile, ukusetshenziswa kwe-spectrophotometer ukuze kunqunywe umbala womugqa, kanye ne-densitometer ukuze sinqume imibala emithathu eyinhloko, ukuze sikwazi ukuphrinta izithombe ezinzile nezingashintshi ezintweni ezihlukahlukene.
08umthombo wokukhanya
Ngaphansi kwemithombo yokukhanya ehlukene, imibala ibukeka ihlukile, futhi amehlo omuntu azwela kakhulu kulezi zinguquko. Lo mphumela ungancishiswa ngokuqinisekisa ukuthi imibala yemibala esetshenziswa kuwo wonke umsebenzi wokunyathelisa inembile futhi ayiguquki. Uma ushintsha abahlinzeki, lokhu kungaba inhlekelele. Ukulinganisa umbala nokubona kuyinkambu eyinkimbinkimbi kakhulu. Ukuze kuzuzwe ukulawula okungcono kakhulu, kufanele kube neluphu evaliwe eyakhiwe abakhiqizi beyinki, ukuhlanganisa uyinki, ukufakazela nokulinganisa okunembile enqubweni yokuphrinta.
09 womile
Ngezinye izikhathi umbala ushintsha ngenxa yokulungiswa okungalungile kwesomisi. Lapho uphrinta iphepha noma amakhadibhodi, uma izinga lokushisa lokumisa lilungiswa liphezulu kakhulu, isimo esijwayelekile siwukuthi umbala omhlophe uphenduka ophuzi. Izimboni zengilazi neze-ceramic zikhathazwa kakhulu ukushintsha kombala ngesikhathi somiswa noma sokubhaka. I-pigment esetshenziswe lapha kufanele ishintshwe ngokuphelele kusukela kumbala ophrintiwe kuya kumbala osikiwe. Le mibala e-sintered ayithinteki kuphela ukushisa kokubhaka, kodwa futhi nge-oxidation noma ikhwalithi yomoya encishisiwe endaweni yokubhaka.
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Isikhathi sokuthumela: Nov-04-2021