A zamanin yau, an yi amfani da injin buga allo a masana'antu daban-daban.A cikin aikin bugu na allo na injin bugu na allo, ba za a iya gurɓata allon bugu ba, amma galibi muna amfani da injin bugu na allo don nunawa daban.Nau'in samfurori sukan haifar da datti akan allon don tsaftacewa, yana haifar da lalacewa, yana shafar ingancin bugawa da rage rayuwar sabis na samfurin.To, menene hanyar descreening allon bugu na allo?
Lokacin da datti ko busassun tawada akan ɓangaren hoton da aka buga, yakamata a ƙazantar da allon.Bayan dakatar da latsawa, za a ɗaga firam ɗin.A wannan lokacin, wasu masu aiki za su yi amfani da kyalle mai ƙyalli don shafa samfurin.A gefen ƙasa, sautin yana da ƙarfi sosai don a ji a cikin shagon bugawa, kuma samfuri yakan lalace.
Ma'aikaci mai ilimi da gaske ba ya yin amfani da ƙarfi don goge saman da aka buga ta stencil saboda ya san cewa tsabtar hoton da aka buga yana buƙatar duk gefuna na hoton su kasance a sarari tare da ƙirar ƙirar emulsion.Shafa mai wuya na iya lalata ƙirar ƙirar ƙirar emulsion, har ma da goge Layer ɗin emulsion, barin ragar raga kawai.
Lokacin buga hotuna masu launi masu tsayi-net, fim ɗin emulsifier a ƙarƙashin waya yana da kauri 5-6um kawai, kuma diamita na raga na kanta na iya zama 30um kawai, wanda ba za a iya shafa shi da ƙarfi ba.Don haka, mabuɗin don guje wa ƙazanta mai ƙazanta shine a hana stencil daga gurɓatar da farko.
Babban abin da ke haifar da gurɓacewar stencil shine sarrafa tawada mara kyau, wanda ke haifar da bushewar tawada ya kasance a cikin raga.Lokacin da aka yi amfani da tawada mai ƙarfi ko tawada mai ruwa, dalilin shi ne tawada ya yi kauri sosai ko kuma ya yi kauri.Kada ya canza a yanayin daidaitawar tawada.Lokacin amfani da tawada masu warkewa UV, yakamata a yi ƙoƙari don guje wa fallasa allon zuwa hasken UV da kuma guje wa faɗuwar rana.
Wata matsala tare da sarrafa tawada da rashin daidaita saurin bugu na iya haifar da rashin daidaituwar wadata da bushewar ragamar karɓar tawada da sauri.
Dalili na ƙarshe na bushewar tawada shi ne cewa squeegee ɗin an saita ko sawa ba daidai ba.Lokacin buga hoto mai kyau tare da adadi mai yawa na layin allo, ana buƙatar amfani da gefen squeegee don lalata ko sawa yayin amfani na yau da kullun.An rage kaifin hoton, wanda ke nuna cewa tawada ba zai iya wucewa ta cikin raga ba akai-akai.Idan ba a magance wannan matsalar cikin lokaci ba, tawada zai bushe a cikin raga.Don guje wa waɗannan matsalolin, ya kamata a jujjuya mashin ɗin lokaci-lokaci don tsawaita rayuwar mashin ɗinsa, ko kuma a canza shi zuwa sabon matse kafin ingancin bugawa ya ragu.
Domin raga ya yi aiki da kyau, ya kamata a kula don cire datti daga tawada ko a kan abin da ke cikin ƙasa.Sakamakon tallan electrostatic na gurɓataccen iska a cikin iska da kuma yanayin ajiya mara kyau, saman ƙasan na iya zama gurɓata.Ana iya magance matsalolin da ke sama ta hanyar inganta yanayin ajiya da sarrafa tsari.Bugu da ƙari, ana iya amfani da na'urar lalata da kuma na'urar lalata kayan aiki.Hana ƙura da datti daga canjawa daga saman bugu zuwa raga.
Menene zan yi idan stencil ya gurɓata?Lokacin amfani da firintar allo, dakatar da firinta bayan buga saitin zanen gado, sa'an nan kuma shigar da takarda mai gogewa don haɗa allo tare da mai rufe fuska..
Bari allon ya kasance a cikin matsayi na bugu, sa'an nan kuma goge datti a saman stencil tare da zane mai laushi mara lahani tare da mai tsaftace fuska.Kar a yi amfani da karfi da yawa, don haka datti za ta fado ta cikin raga.A kan takardar da ke ƙasa, idan ya cancanta, maimaita tsaftacewa na raga tare da takarda mai shayarwa.Wasu daga cikin ɓangarorin da suka faɗo a saman na iya yin girma da yawa don wucewa ta raga, amma ana iya manna su da kyalle mai laushi.Bayan tsaftacewa, ana iya busa samfur ɗin tare da busa (kira "iska mai sanyi").
Lokacin tsaftace firintar allon madauwari, ana fuskantar yanayi daban-daban.Saboda tsarin ƙira, ba zai yiwu a wanke datti a kan takarda mai sha ba kamar firinta na al'ada.Abin farin ciki, saboda saurin bugun bugu, da wuya tawada zai bushe a cikin raga.Idan wannan ya faru, da farko dakatar da latsa lokacin buga ƙungiyar, sannan yi amfani da zane mai laushi mara lahani don shafa mai tsabtace allo ko siriri zuwa saman samfurin inda aka buga hoto.Mai ƙarfi yana goge datti a cikin raga.
Wani lokaci ana cire datti a ƙarƙashin samfurin.A wannan yanayin, ya kamata a shafe datti a hankali tare da zane mai laushi.Kar a yi amfani da karfi fiye da kima.Ya kamata a yi amfani da hanyoyin tsaftacewa da tsaftacewa na sama akai-akai a cikin tsarin samarwa don tsawaita rayuwar sabis na stencil da na'urar bugu na allo da rage raguwar raguwa.
Lokacin aikawa: Nov-26-2020