Xana ku kandziyisiwa ka rotogravure i yini .
Ku kandziyisa ka gravure i ku endla vuandlalo hinkwabyo bya pulati yo kandziyisa leyi funengetiweke hi inki, ivi u tirhisa endlelo ro hlawuleka ro khwaxa ku susa inki eka xiphemu lexi nga riki na nchumu xa inki, leswaku inki yi vekiwa ntsena eka swipfalo swa mesh swa xiphemu xa xifaniso xa inki, ivi ehansi ka xiendlo xa ntshikelelo lowukulu, inki yi ta hundziseriwa ehenhla ka xiphemu xa le hansi, ku kuma nchumu lowu kandziyisiweke. Ku kandziyisa ka gravure i ku kandziyisa hi ku kongoma. Xiphemu xa graphic xa printing plate xi concave, naswona degree ya concavity na level ya xifaniso yina ti shades to hambana hambana, xiphemu lexi nga riki na nchumu xa printing plate xi tlakusiwile, naswona eka cylinder plane yin’we.
Endlelo ra rotogravure i ndlela yo hundzisela hiku kongoma yo kandziyisa eka ti wood-pulp fiber based, synthetic, kumbe laminated substrates, kukatsa na:
—Tifilimi to tanihi xifuwo xa le ndlwini, OPP, nylon, na PE,PVC,Cellophane .
—Maphepha .
—Bodo ya khatoni .
—Xifunengeto xa aluminum .
Endlelo ro kandziyisa ra rotogravure .
Rotogravure printing hikokwalaho ka xiyimo xale henhla xa automation ya muchini wo kandziyisa, khwalithi ya plate yi kahle, naswona xisweswo ntirho wa maendlelo wu olovile kutlula ku kandziyisiwa ka lithographic, swi olova ku switiva, ku khuluka ka maendlelo hindlela leyi landzelaka:
Ku lunghiselela ka le mahlweni ka ku kandziyisa → Eka pulati ya silindara → Lulamisa ku tsarisa ka mihlovo → ku kandziyisa hi ndlela ya xivumbeko → Ku lulamisiwa ka le ndzhaku ka ku kandziyisa .
Nhlamuselo ya phurosese .
Hi nkarhi wa endlelo ro kandziyisa ra gravure silindara yo kandziyisa yi rhendzeleka eka pani ra inki laha tisele leti vatliweke ti tataka hi inki. Loko silindara yi ri karhi yi rhendzeleka yi nga ri na pani ra inki, inki yihi na yihi leyi tlulaka mpimo yi susiwa hi dokodela. Kuya emahlweni, cylinder yiyisiwa eka contact na substrate, leyi tshikileriwaka eka yona hi rubber covered impression roller.
Ntshikelelo wa roller, xikan’we na capillary draw ya substrate, swiendla leswaku kuva na ku hundziseriwa ka inki hiku kongoma kusuka eka ti cells eka silindara yo gandlisa kuya e henhla ka substrate. Loko roller yo kandziyisa yi ri karhi yi rhendzeleka yi tlhelela endzeni ka pani ra inki, ndhawu leyi kandziyisiweke ya substrate yi ya emahlweni hi ku tirhisa xigwitsirisi ni le ka yuniti yo kandziyisa leyi landzelaka, leyi hi ntolovelo yi nga muvala lowu hambaneke kumbe yi nga ha va varnish kumbe xifunengeto.
Ku tsarisiwa ka muvala hi ku kongoma ku ya eka muvala swi endliwa swi koteka hi ku tirhisa tisisiteme ta vulawuri bya rhijisitara bya le tlhelo na ku leha ka ku leha.
Eka muchini wo kandziyisa lowu dyiwaka hi webu, endzhaku ka loko muvala wun’wana ni wun’wana wu kandziyisiwile naswona swifunengeto swihi na swihi leswi endliweke, webu yi ‘rhendzeleka’ eka roll leyi hetiweke.
Sweswi hi kongomisa eka endlelo ro kandziyisa swi nga khumba hi ku kongoma khwalithi ya ku kandziyisa ya yin’wana ya swihlanganisi swa nkoka swinene - ku tsarisa mihlovo .
Sweswi, vunyingi lebyikulu bya michini yo kandziyisa ya gravure yi ta tirhisa endlelo ro tsarisa mihlovo ya otomatiki eka ku tsarisa swifaniso, leswi antswisaka swinene vuswikoti byo tsarisa na khwalithi ya ku kandziyisa.
Eka muchini wo kandziyisa wa Web Gravure, ku ni xitirhisiwa xo kandziyisa lexi tlulaka mpimo lexi tirhaka hi ku tisungulela. Xitirhisiwa lexi xi na nhloko yo skena, jeneretara ya pulse, xilawuri xa elektroniki, motor wo lulamisa, roller yo lulamisa ku kandziyisiwa ngopfu na swin’wana.
Loko mfungho wa ku kandziyisa ehenhla eka phepha leri kandziyisiweke hi nhloko yo skena, xigingi xa pulse xi ta hundziseriwa eka mulawuri wa elektroniki, loko muvala wa vumbirhi wa mfungho wa ku kandziyisa ku tlula mpimo wu hoxile emahlweni kumbe endzhaku ka muvala wo sungula wa mfungho, ku humelela ka nkarhi wa ku ba ka mbilu ku ta va ku nga ringani, leswaku mulawuri wa elektroniki a sungula ku lawula mpimo wutsongo wa ku famba-famba, leswaku muvala wo sungula ni muvala wa vumbirhi wa ku kandziyisiwa ka le henhla exikarhi ka swiphemu leswi lawulaka swi va ni swiphemu leswi lawulaka.
Ku engetela kwalaho, ku tlhela ku va ni swilo leswi landzelaka leswi nga khumbaka khwalithi ni ku tirha kahle ka ku kandziyisa, kambe hi ta va ni swintshuxo leswi faneleke .
a) t he inki a yi ringani hi muvala .
Xiendlakalo xa ku cinca ka mihlovo ya inki ya nkarhi na nkarhi eka swilo leswi kandziyisiweke. Maendlelo yo herisa ya katsa: ku lulamisa xirhendzevutani xa silindara ya pulati yo gandlisa, ku lulamisa angle na ntshikelelo wa squeegee kumbe ku siva squeegee hi leyintshwa.
b) Swifaniso swa Fuzzy na Linty .
Tilevhele ta swifaniso leswi kandziyisiweke na levele, namarheta, xiendlakalo xa ti-burrs etlhelo ka xifaniso. Maendlelo yo herisa ya katsa: ku susa gezi leri nga cinciki ehenhla ka substrate, ku engetela swin’wetsin’wetsi swa polar eka inki, hi ndlela leyi faneleke ku engetela ntshikelelo wa ku kandziyisa, na ku lulamisa xiyimo xa squeegee na swin’wana.
C) Vuhundzuluxeri lebyi pfaleriweke .
Ku omisiwa ka inki eka mesh ya plate yo gandlisa, kumbe khumbi ra mesh ra plate yo gandlisa ri tatiwa hi misisi ya phepha, xiendlakalo xa paper powder, lexi vuriwaka blocking. Maendlelo yo herisa i: Ku engetela nhlayo ya swin’wetsin’wetsi eka inki, hunguta rivilo ra ku omisiwa ka inki, ku tirhisiwa ka ku kandziyisiwa ka maphepha ya matimba ya le henhla.
D) Ku chuluriwa ka inki .
Xiendlakalo xa swivati leswi humelelaka ensin’wini xiphemu xa ku kandziyisiwa. Maendlelo yo herisa ya katsa: ku engetela hard inki blending oil, antswisa viscosity ya inki. Lulamisa angle ya squeegee, engetela rivilo ro kandziyisa, naswona u cinca pulati yo kandziyisa ya deep-cavity hi shallow-cavity printing plate.
E) Xitlhokovetselo .
Kuna swikombiso swa squeegee eka print. Maendlelo yo herisa i: tirhisa inki leyi tengeke handle ka swilo swa matiko mambe leswi pfanganisiweke eka ku kandziyisiwa. Lulamisa viscosity, ku oma na ku namarhela ka inki. Tirhisa squeegee ya xiyimo xale henhla, lulamisa angle exikarhi ka squeegee na printing plate.
Vainjhiniyere va Oyang va kambisisile no antswisa xivumbeko xa muchini hi ku ya hi nxaxamelo wa swiphiqo eka endlelo ro kandziyisa, naswona va endle muchini wo kandziyisa wa Honor Sereis ELS Rotog Ravure ku suka eka mavonelo yo tlhantlha tinhla ta ku vava ta vatirhisi na indasitiri.
Rotogravure Process Swipfuno na Switirhisiwa .
Endlelo leri ri nyika vuswikoti byo hundzisela inki hi ku landzelelana, ku tsemakanya nhlayo yo hambana ya ti densities, naswona hi rivilo lerikulu, ku endla leswaku yi faneleka eka switirhisiwa leswi lavaka khwalithi ya le henhla ya swifaniso, ku fana na ku kandziyisa, ku paka, malebvu, ku kandziyisiwa ka vuhlayiseki, na ku kandziyisa ko khavisa.
Ntumbuluko wo tiya wa tisilinda to kandziyisa leti tirhisiwaka wu endla leswaku ku kandziyisa ka gravure ku va endlelo lerinene ro nyika ku kandziyisiwa ka xiyimo xa le henhla eka ku tsutsuma ko leha swinene kumbe loku phindha-phindhiwaka nkarhi na nkarhi, ku tisa swipfuno swa ntsengo eka maendlelo man’wana.
Vutshila bya Oyang na vutivi .
Mutumbuluxi wo chavisa, loyi a kongomisiweke eka ku tumbuluxa nkoka eka tiklayenti ta yona, swikumiwa ku suka eka Oyang Rotogravure Press Making, eka malembe manharhu ntsena Oyang Rotogravure Press yi ake ndhuma ya kahle na vito lerinene eChina, naswona ku na matiko yo tala na swifundzha emisaveni hinkwayo laha tifektri ta vaxavi ti nga na tifemeni ta hina ta xichavo Electronic Rotogravure printing presses, naswona ti fambisiwa hi ndlela yo tiya swinene.
Mutumbuluxi loyi a hlamarisaka hi ku ringana, Oyang u vekile swipimelo leswintshwa eka ku kandziyisa ka web-film gravure eka tindhawu leti lavaka ku fana na ku pakiwa loku cinca-cincaka hi ku kandziyisa ka yona ka Honor® Series Rotogravure . Ku fikelela mbuyelo wo hlamarisa wa ku kandziyisa eka ku paka ka xiyimo xa le henhla loku laminated flexible swi tisa mintlhontlho leyintshwa eka endlelo ro kandziyisa ra gravure, kambe nhluvukiso wa thekinoloji, ku olova ka ku tirhisiwa, nkarhi wo hatlisa wo hundzuka na ku hunguta ku tlanga hi michini ya Oyang swi endla leswaku ku va yin’wana ya tindlela ta le henhla eka vaxavi eChina na le misaveni hinkwayo.
