Qhov txawv thiab cov luag hauj lwm ntawm qhov kev sib tshuam rau cov menyuam nyob rau ntawm cov xim multi-color offset
Peb yog ib lub tuam txhab luam ntawv loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv xov xwm luam ntawv, phau ntawv luam ntawv, phau ntawv nyuaj, phau ntawv luam tawm, phau ntawv luam tawm, phau ntawv luam tawm, lub thawv ntim, daim qhia ntawv, txhua yam ntawm PVC, cov ntawv luam tawm, ntawv sau cia, hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
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Ua ntej, lithographic number case tshuav
Peb txhua tus paub tias lithography yog raws li lub hauv paus ntsiab lus uas roj thiab dej tsis sib ncag (tshwj tsis yog tsis offscreen luam tawm), yog li ntawd qhov seem ntawm qhov xub thawj adsorbs dej nyob rau hauv lub phaj ntws kom tiv thaiv tus cwj mem. Cov duab seem ces adsorbed tsim ib daim ntawv sau tawm. Vim li no, tswj tus lej tus nqi ntawm qhov tsim qhov teeb meem yog qhov tseem ceeb hauv lithography, uas yog ncaj qha ntsig txog kev khiav hauj lwm: qhov tseem ceeb ntawm txoj kev thiab qhov khoom.
Dab tsi yog qhov seem ntawm tus number case thiab dej? Lub tswvyim ntawm static yog hais tias cov dej nyob hauv ib qho ntawm ib qho ntawm cov ntawv xov xwm thiab tus cwj mem nyob hauv daim duab nrig tsis muaj kev cuam tshuam. Tab sis nyob rau hauv kev muaj tiag no yog tsis yooj yim sua. Vim tias cov roj-incompatibility yog tsuas yog tus txheeb ze, hauv qee qhov kev mob, piv txwv li, kev ntxhov siab ntawm qhov kev quab yuam thiab qhov kev txiav txim ntawm cov hluav taws xob, cov roj thiab dej yuav tawg mus ua emulsion. Hauv cov txheej txheem ntawm cov dej hloov thiab cov inking ntawm lithographic luam ntawv, tus number case thiab dampening kua yog ib txwm nyob rau hauv qhov kev sib zog extrusion. Cov tub ntxhais uas muaj lub plhaub thiab cov seem ntawm daim ntawv sau ua ke yuav tsum sib zog, thiaj li hais tias tus cwj mem ntawm cov tub rog uas muaj cov plhaub dej muaj dej. . Cov taub dej thiab cov phaj hauv daim duab phaj yog sib txuam nrog, kom lub plhaub ntim hauv cov duab nrawm ntawm cov phaj ntawv tseem muaj dej. Qhov ntau seem ntawm qhov sau thiab ntau dua cov dej ntawm cov dej hauv lub pas dej, ntau cov dej muab tso rau hauv tus cwj mem. Tsis tas li ntawd, ntau yam ntawm cov dej kub ntxhov feem ntau kuj tuaj yeem nyob hauv cov ciav dej thiab cov phev. Nws tuaj yeem pom tau tias tus lej membroidery hauv lithography yog unavoidable, thiab qhov teeb meem yog li cas los tswj qhov luaj li cas ntawm tus nqi emulsification thiab stability ntawm tus nqi emulsification. Vim tias cov lej ntawm cov lithographic luam yuav tsum to taub raws li kev hloov ntau yam, qhov tsawg kawg nkaus ntawm cov dej yog siv los lwv nrog tus cwj mem hauv qhov seem ntawm cov ntawv xov xwm los ua tus lej micro-emulsified, thiab cov emulsified tus nqi ntawm tus number case yog stabilized. Tus nqi ntawm cov ntawv sau rau ntawm lub phaj yog me me, thiab cov ntsiab lus dej yog me me; Qhov no yuav ua rau me ntsis emulsion duav. Nws tsis yooj yim los ntsuas qhov tseeb emulsification tus nqi nyob rau hauv cov ntau lawm, tab sis ib yam yog cuab kev: tus loj dua tus nqi emulsification, ntau tus drawbacks yog. Piv txwv, cov kev lag luam yog loj zuj zus, cov phom ntsaws, qhov xim xim tsis ruaj tsis khov, tom qab cov khoom qias neeg, thiab cov ntawv luam tsis yooj yim rau kev qhuav.
Thib ob, number case balance
Kev luam ntawv, tswj tus cwj pwm thiab dej tshuav nyiaj muaj feem xyuam nrog ntau yam. Piv txwv: qhov sib piv ntawm tus lej ntawm cov dej, qhov chaw ntawm lub qhov dej txhim kho nws tus kheej, qhov concentration thiab qhov kub ntawm qhov chaw sib tov, qhov ntawm tus lej nws tus kheej, lub siab ntawm tus number case roller, qhov kub thiab txias humidity ntawm ib puag ncig, thiab cov zoo li. Rau cov cav tov qub, cov kev tswj ntawm kev sib nrauj no yog los ntawm kev xav. Raws li kev paub, muaj ntau cov qhob. Hauv cov ntawv luam tawm, yog tias dej tsawg, nws yuav yooj yim dua. Vim hais tias qhov tsim teeb meem qis heev ces cov dej ntawd me heev, qhov tsim yuav tsaus ntuj. Yog li no, qhov tsis txaus siab ntawm tus number case thiab ntxuav tshwm sim, thiab feem ntau cov dej loj heev. Yog hais tias nws tsis yog hloov nyob rau hauv lub sij hawm, nws yuav ua rau loj emulsification ntawm tus number case. Ob xyoo dhau los, cov neeg ua haujlwm ntawm lub koom haum luam ntawv tau hais tias lawv lub cav (cov tshuab qub qub) cov khoom siv luam tawm tsuas muaj txog 20 cov ntawv sau dub (tag nrho plaub zaug), thiab lawv kho tus nqi ntawm tus lej tsawg kawg (Cov thawv rau lub voj voos thiab tus cwj pwm ntawm cov quav ciav hlau tau muab tso tseg lawm, Txawm li cas los xij, thaum tshaj li ntawm 2,000 nplooj ntawv luam tawm, tus cwj mem yog loj heev, ua rau sab nraum qab ntawm nplooj ntawv yuav tsum tau xaj. Yog li ntawd, qhov teebmeem no yog qhov uas lawv tsis hloov tus lej thiab dej ntxuav hauv qhov xwm txheej no. Tamsim no yog qhov tseem ceeb tshaj plaws rau lub neej ua haujlwm tseem ceeb, tab sis yog tias txoj hauv kev tua neeg tsis muaj zog, nws tseem muaj qhov txawv txav, qhov txawv ntawm qhov teeb meem ntawm qhov qub qub offset xovxwm thiab lub Heidelberg CP2000 offset xovxwm dej system:
1. Lub dampening system ntawm Heidelberg CP2000 offset xovxwm yog thauj nrog dej tsis tu ncua. Dej rau cov menyuam thiab cov txheej txheem ntsuas dej yog cov khoom xyaw ywj siab. Tus nqi ntawm cov dej muaj peev xwm muab kho tau los ntawm kev ceev ceev ntawm tus ciav dej thiab tus cag dej, thiab qhov loj ntawm qhov dej yog kho ntawm qhov chaw nruab nrab ntawm tus ciav dej thiab cov txheej txheem ntsuas.
2. Lub tshuab no feem ntau siv cawv dampening kua. Qhov kev nruj ntawm qhov cawv dampening kua yog tus qis, thiab kev kis tau zoo. Ib qho me me ntawm cov dej nyob hauv seem ntawm daim ntawv luam tawm yuav tsim tau cov dej uas tsis muaj xim zoo nkauj, uas ua rau cov dej muaj tsawg tshaj plaws rau lub phaj. Tsuas yog -
Rooted nyob rau hauv ib cov dej rau cov menyuam, tsis tas siv ib daim ntaub npog dej.
3. Lub tshuab yog nruab nrog hnoos qeev (uas yuav tsum tau muaj lub cawv ciav dej) thiab qhov kev tswj tsis siv neeg. Qhov chaw nro thiab pH ntawm dampening tshuaj yuav tswj los ntawm nruj me ntsis tswj cov cawv concentration, cov concentration ntawm cov kua daws, thiab qhov kub ntawm dampening kua.
4. Nrog rau txhua lub cheeb tsam ntawm cheeb tsam, ib qho tshuab xoos xaim tshuab raj tso rau hauv txoj kev ua kom tsis txhob ntub dej ntau hauv cov cheeb tsam kom av sai sai.
5. Lub tshuab cwj pwm inkjet yog muab nrog cov kua npluas (circulating fluid) uas muaj peev xwm tiv thaiv tau qhov ntsuas kub kom tswj tau tus lej cim ntawm tag nrho number case cuav thiab txo qhov hloov ntawm tus cwj pwm ntawm lub sij hawm luam tawm.
6. Txuas nrog lub zog CP ua ke, uas muaj peev xwm pre-ntub thiab nplua-qhib rau number case volume; pre-damp lub dampening tov, tom qab ntub thiab teev cov kev taug qab dampening, teem lub ntim number case thiab cov yam ntxwv cwj pwm curve, thiab li ntawm.
Cov yam zoo li no ncaj qha ntsig txog qhov teeb meem ntawm tus cwj pwm thiab dej tshuav nyiaj. Yog li, lub niaj hnub offset tshuab luam ntawv, txawm tias nws yog teem kom cais cov lej txoj kab, qhov tsoos offset tshuab luam ntawv yuav tsis muab piv rau nws. Uas yog hais, nws yog ib qho yooj yim rau niaj hnub offset presses tswj tus number case thiab dej tshuav nyiaj li cas.
Qeb peb, tus cwj pwm ntawm cov cuav txoj kev
Nws tau hais saum toj no tias tus lej nyiaj tshuav ntawm lithography yog tsim los ua ib tug qauv me me emulsion. Yog tias txoj hlua ntawm txoj kab sib cais, nws yuav siv sij hawm ntau npaum li cas (luam ntawv) kom ua tiav qhov nyiaj no. Tus nqi ntau ntawm tus cwj mem, nws ntev npaum li cas. Uas yog hais tias, qhov xim ntawm tus cwj pwm tsis txaus ntseeg thaum lub sijhawm no. Yog hais tias tus lej ntawm txoj hlua khi tau sib txuas lus, luam ntawv pib, thiab thawj tus tub ntxhais plhaub yog muab nrog ib qho xaj emulsion. Yog tias cov xwm txheej muaj feem xyuam rau ntawm tus cwj pwm ntawm tus cwj pwm thiab dej tau raug tswj tau, tus lej rov ua tau tus nqi thiab tus yees hauv ib qho luv luv ntawm cov luam tawm, yog li ntawd tus lej xim ntawm cov khoom yog hom teeb thiab tsis tsim nyog.
Ntxiv tsom, siv tshuaj cawv dampening, cov dej dej ntawm lub tso zis tso quav yuav ua rau nyias. Yog li, thaum cov tub rog dej hloov tsheb mus rau hauv seem ntawm daim ntawv luam tawm, tus number case ntawm lub phaj luam ntawv yog ntau dua los yog tsawg dua mus rau lub taub dej. Yog hais tias txoj hlua khi xaws txoj hlua khi, feem ntau ntawm cov cwj pwm uas muab xa mus rau tus cag dej tawm rov qab rau tus cwj mem. Cov ntau ntawm cov cwj mem ntawm lub phaj, ntau tus cwj mem yog xa rov qab rau cov quav cuav quav. Nyob rau hauv txoj kev no, yog tias lub tshuab luam tawm tom qab ua haujlwm hauv nruab nrab ntawm kev luam ntawv, nws tsis yog yooj yim los ua tus ntu ntawm thawj ob nplooj ntawv yuav tsaus tshwj xeeb, los yog ua kom muaj xim xiav xim.
Thiab yog hais tias nws tau teem caij cais ob kab ke, qhov teeb meem no txawv. Txij li cov thickness ntawm tus number case txheej ntawm tus number case roller yog ceev nrooj redistributed thaum lub tshuab yog khiav npliag, thickness ntawm tus number case txheej ntxiv. Tom qab ua dab tsi lawm, tus cwj pwm xa mus rau lub phaj luam yog dheev ntau zog, tshwj xeeb tshaj yog rau cov khoom siv nrog ntau tus number case. Muaj ntau zaus ob zaug: ib qho yog tias cov hlau dej muaj cov dej noo ntau dua, thiab tus cwj mem ntawm lub phaj luam tawm tuaj yeem tsis pauv mus rau cov taub dej. Yog li ntawd, lub plhaub ntim ntawm lub plhaub ntim ntawm cov quav rov rau cov qub, thiab tus cwj pwm xim ntawm daim ntawv luam tawm tsuas rov qab coj mus rau qhov qub (cov nab npawb cov nplooj ntawv muaj feem xyuam nrog cov lej cim tsim). No.: Hauv ob qho tib si, cov dej ntawm cov dej hauv cov dej yog qhov tsawg dua, thiab tus cwj mem ntawm lub phaj raug xa mus rau cov taub dej. Yog hais tias tus cwj mem ntawm tus cwj pwm ntawm tus cwj pwm tsis yog lawm, tus number case npav tswj zoo dua qub, thiab tus cwj mem ntawm tus cag dej tawm maj mam tshem tawm ntawm phaj luam ntawv - ib feem ntawm qhov uas ua rau tus number case xim ruaj khov. Yog hais tias tus npau npau npau npau siab tsis zoo thiab tus lej feem ntau tsis zoo, tus cwj mem ntawm lub khob dej yuav tsim ib "tuag number case", thiab ntau tshaj thiab ntau dua, qee zaus yuav tau nres, ntxuav tus cwj mem ntawm lub khob dej thiab qhib. Saib xyuas lub tshuab plaub-xim ntawm qee tus tuam ntxhab. Yog hais tias nws yog teem rau lub xeev ntawm kev cais ntawm tus lej, feem ntau ntawm lawv yog cov thawj zaug, uas yog, cov dej hauv dej muaj ntau txoj kev ya raws, thiab cov taub dej uas tsis muaj ntawv sau cia.