Grey tshuav nyiaj li cas thiab qhov khoom poob nyiaj (3)
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.
Yog xav paub ntxiv, thov mus saib
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Plaub, tom qab xim tshem tawm thiab tshauv chaw hloov
(1) Dub version
Qhov zoo tshaj plaws xim luam yeeb xim, tsuas yog xav tau Y, M, C thawj peb lub plawv muaj xim plhis, koj tuaj yeem ua ke ntau tsheej lab ntawm cov xim thiab sib txawv ntawm qhov sib txawv, qhov no yog qhov peb thawj xim tu zauv. Txawm li cas los xij, peb lub thawj phev tsis tsim qhov nruab nrab ntawm qhov nruab nrab ntawm qhov nruab nrab, uas tsis tuaj yeem ncav cuag qhov yuav tsum tau ceev (qhia hauv daim duab 4-4-2). Lub zog ntawm cov ntawv plaub-xim yog siab tshaj qhov ntawm peb daim xim, uas yog ntawm qhov nyiaj dub version. Yog tias muaj ntau lub xim, nws yog nyob rau hauv ib lub xeev ntub dej, thiab thaum lub plhaub taum plig yog tuab, nws tsis yooj yim rau qhuav, thiab nws yog ib qho yooj yim los ua ib qho tshwm sim xws li overprinting. Tus nqi ntawm lub npuaj kab thawj tsaus yuav tsum tau muab rho tawm, yog li nws yuav tsum tau hloov nrog rau xim dub.
Lub dub version plays lub luag hauj lwm tseem ceeb hauv kev txhim kho cov khoom tsim los ntawm kev them nqi rau cov cim tseem ceeb ntawm cov teeb meem thiab ua kom haum rau cov kev xav tau ntawm cov xim multi-xim high-speed printing presses.
1 yuav txhim khu lub qhov sib txawv ntawm cov duab. Raws li cov xwm txheej luam tawm tam sim no, qhov sib txawv ntawm Y, M, thiab C peb cov xim thev yog 1.6 txog 1.7, thiab qhov kev daws teeb meem yog feem ntau 1.8 rau 1.9. Yog li, qhov dub version ntawm lub suab tsim nyog siv los txhim khu lub peev xwm ntawm daim ntawv, ua li qhov ntau qhov sib npaug ntawm cov duab, ua qhov sib txawv ntawm daim duab, qhov peb-dimensionality, thiab kev txhim kho cov khoom zoo.
2 Kho cov xim rau lub suab tsaus nti. Raws li qhov feem ntawm qhov sib piv ntawm qhov sib piv yuav tsum tau xim nrog cov xim uas yuav tsum tau, tiam sis tus nqi luam ntawv loj loj, cov xwm txheej tsis ruaj tsis khov, xws li qhov sib txawv ntawm kev ua ntawv ntawm tus ntawv number case, lub kev hloov ntawm lub cav ntau, thiab lwm yam. Cov kev sib txawv tsaus ntuj, tshwj xeeb tshaj yog thaj tsam ntawm 70% rau 100% dot yog tsawg, feem ntau cov khoom muaj xim xim av thiab xim tsis ruaj tsis khov. Qhov tseeb, feem ntau ntawm cov qauv tseem tsaus thiab tsaus, uas yog inconsistent nrog rau cov cai. Qhov tsim nyog dub version yuav siv tau los tswj cov xim thiab kov cov xim tsaus muag.
3 ntxiv dag zog rau qhov nruab nrab mus rau theem tsaus. Nyob rau hauv cov xim luam yeeb, txoj cai dav dav yog los tuav lub suab nrov los yog qhov tseem ceeb me ntsis, kom muaj lub suab nrov los sis lub nruj me ntsis, lub suab qis dua lub suab qis dua ntau dua, tus duab ntxoov ntxoo nruab nrab muaj qhov tshwm sim ncaj nraim, tsuas yog daj, khoom Cov xim liab thiab xiav xim yog superimposed, thiab qhov hloov ntawm qhov nruab nrab mus rau qhov tsaus ntuj yog fab xav hauv siab, thiab cov txheej tsis tuaj yeem qhib. Cov txheej txheem dub yog pom tseeb, cov khaubncaws sab nraud povtseg yog qhov txawv txav, thiab cov ntsiab lus tsaus nti meej meej.
4 txhim kho kom zoo thiab txo nqi. Nrog lub siab ntawm high-speed multi-xim printing presses, lub sij hawm overprinting ib xim yog luv heev, thiab ntau heev heev number case coj ntau failures luam tawm. Yog li, nws yuav tsum txo cov xim ntawm tus cwj pwm ntawm cov plaub hau ntawm qhov tsaus nti ntawm daim duab, thiab hloov nws nrog cov xim dub, uas yog txo cov luam ntawv tsis ua thiab txhim kho cov ntawv pov thawj. Nyob rau tib lub sijhawm, tus cwj mem dub yog pheej yig thiab tus nqi qis dua.
5 Txhim kho qhov teeb meem ntawm cov ntawv luam tawm thiab xim kev luam. Cov ntaub ntawv xws li duab piav qhia, kev tshaj tawm txog advertisement, qauv daim ntawv lo thiab daim ntawv qhia hnub nyoog tag nrho cov qauv hauv dub. Los ntawm txoj kev xav tau, cov cim dub ua haujlwm zoo tshaj. Nws yog tsis muaj tseeb rau overprint ntawv nyob rau hauv peb qhov xim versions.
(2) Tom qab xim tshem tawm (UCR)
Sab nraud tshem tawm, kuj yog hu ua UCR (Nyob Hauv Xim Xim), hais txog tus txheej txheem uas muaj tus lej ntawm cov xim uas muaj xim sib txawv kom sib txawv, thiab hloov cov xim dub.
Kev tshem tawm keeb kwm yav dhau los tau los ntawm cov kev cai ntawm ntub dej-rau-ntub luam tawm thiab thawj cov qauv ntawm lub zeem muag ntawm cov qib high-speed printing presses. Nws muaj qhov zoo ntawm kev yooj yim ntawm kev ceev nrhav, txuag kim xim (piv txwv li yog tshem cov nqi ntawm Y, M, C inks thiab hloov lawv nrog ib tug me me ntawm dub number case) thiab facilitating nruab nrab gray tshuav nyiaj thiab nruab nrab grey luam. .
1. Ntsiab cai ntawm kev tshem tawm keeb kwm yav dhau los
Nyob rau hauv kev tshawb xav, yog tias Y tagnrho Y, M, C yog hauv qhov sib npaug sib npaug, qhov kev zoo nkauj nruab nrab tsis muaj peev xwm yuav tsim, qhov no yog qhov tsawg kawg ntawm peb cov xim ntawm Y, M, thiab C xim muaj xim nyob ntawm lawv, tshauv tivthaiv yog tshwm nyob hauv daim duab 4-4-3. Hauv ua ke, qhov sib xyaw xim ntawm peb daim xim xim Y, Y, M, thiab C thiab cov xim xim ntawm ob qho xim ntawm Y, M, thiab C muaj qhov pom kev zoo tib yam. Yog vim li cas thiaj li yog tus cwj mem dub uas muaj peev xwm muab tsim tawm ntawm cov tawv ntoo uas tsis yog nruab nrab, uas yog tshem tawm cov xim nruab nrab ntawm qhov nruab nrab ntawm Y, M, thiab C thiab hloov nws nrog tus cwj mem dub, ua rau tib qhov muag pom tau rau tib xim.
Nrog rau txoj kev tsim cov qauv siv niaj hnub siv thiab cov duab cov duab hluav taws xob, cov xim xim tshem tawm tom qab raug tsim kho thiab tsim, thiab tus txheej txheem tshiab uas cov xim tom qab tshem tawm thiab hloov tshauv hloov txheej txheem coexist tau tsim. Tshauv hloov tsis tas tsuas ua tiav tag nrho cov hauj lwm ntawm kev tshem xim tom qab, tab sis kuj siv ntau tus cwj mem kua dub siv Y, M, C thiab lwm cov xim muaj xim, thiab ua kom muaj qhov zoo ntawm luam cov ntawv luam.
2. Lub hom phiaj ntawm kev tshem tawm tom qab
(1) Txhim kho cov ntawv pov thawj thiab cov inkj dryness. Hauv kev luam, tsis nruab nrab thiab xim, feem ntau yog muab los ntawm Y, M, thiab C overprinting. Yuav kom them nyiaj rau qhov tsis muaj txheej ceev hauv nruab nrab kev hloov, dub ntxiv. Version. Txawm li cas los xij, rau ntau lub xim high-speed luam nrog ceev ceev ceev hnub no, nws tsis yog yuav tsum tau tos tus number case rau luam tawm ua ntej, thiab nws yog qhov tsim nyog rau overprint tus number case ntawm tus tom ntej xim, tsis tuaj yeem hloov mus rau thawj tus ntawv luam tawm, uas ua rau tsis muaj kev tshaj tawm. Tus cwj mem xaws yog tsis sib luag, thiab txawm tus thawj luam tawm tus cwj mem muab tshem tawm ntawm tus cwj mem muab luam tawm rau tom qab. Lawv yog cov hnov tshwj xeeb tshaj tawm hauv qhov tsaus ntim-uas tau kho dua ntawm plaub hom xim ntub dej ntau dhau ntub. Niaj hnub no cov xim multi-colour printing presses feem ntau yuav tsum muaj ib qho uas muaj me ntsis-kho nrog cov ntawv sau zoo. Tag nrho cov cheeb tsam ntawm cov khoom pov thawj overprinted yuav tsum yog tas rau 250% mus rau 270%. Yog li, kom thiaj li ua tau raws li cov txheej txheem ntawm kev luam ntawv thiab txhim kho cov kev xav tau uas tsis txhom hais los saum toj saud, nws tsim nyog yuav tau txais ib qho xim tshem tawm hauv av kom txo tau tag nrho tus nqi ntawm cov xaum, ua kom cov lej sij hawm qhuav, thiab txhim kho cov ntawv pov thawj.
(2) Txo cov nqi ntawm cov nqi tsim Tus nqi ntawm Y, M, C, thiab BK plaub-xim thev siv hauv kev luam ntawv tsis sib npaug. Thaum siv xim tshem tawm tom qab, tag nrho txog 50% txog 80% ntawm cov dots yuav raug tshem tawm, thiab tsuas yog li ntawm 15% ntawm cov phuam dub yuav tsum ntxiv, uas yog, nws tuaj yeem hloov li ntawm 50% mus rau 80% ntawm daj, magenta, thiab xiav overprint. Cov nyhuv yog kom txuag tau ntau xim xim, thiab cov txiaj ntsim nyiaj txiag yog cuab yig rau qhov luam tawm high-volume. Feem ntau, qhov nce ntawm 50% ntawm kev tshem tawm xim tom qab tuaj yeem txo tus nqi txo nqi ntawm 10% mus rau 15%.
(3) Cov Nyiaj Raug Xim Thaj Them Xim Xim thawj ntawm cov duab xim, txawm tias cov duab muaj qhov sib npaug zoo ntawm qhov nruab nrab mus rau hauv nruab nrab, nws feem ntau tawm ntawm kev sib luag hauv qhov tsaus ntuj nti thiab tuaj yeem ua haujlwm ib qho xim. Yog tias tsim nyog rau tus mob uas muaj xim zoo nkauj thiab qhov xim raug muab kho, nws zoo heev los daws qhov teeb meem los ntawm qhov siv xim daj. Raws li tau pom hauv daim duab 4-4-3, muaj ib qho liab ploog thawj, tsaus nti xim yog tsim los ntawm Y7, M9, C6. Kom ua kom muaj xim tsaus nti tawm, xim tom qab tuaj yeem muab tshem tawm Y, Yog tias M lossis C yog sib npaug los sis tsis sib npaug kom tshem tawm ib qho, xim muaj pes tsawg leeg yuav raug hloov los ua grey tshuav nyiaj li cas. Piv txwv, yog cov Y, M, thiab C raug muab tshem tawm los ntawm tus nqi sib npaug, xim muaj pes tsawg YU, M7, thiab C4. Obviously, 7: 9: 6 ≠ 5: 7: 4, tsuav yog cov cim Y, M, thiab C raug txiav txim siab. Kho cov xim cam.
(4) Ntsuas cov xim ntawm keeb kwm yav dhau Cov tshem tawm tsuas ua rau thaj chaw nruab nrab xwb, yog li cov teeb ntawm lub tsaus nti raug hloov los ntawm cov xim tom qab, thiab lub hom phiaj ntawm kev siv xim av kom tshem tawv xim tuaj yeem tiav.
Feem ntau, thaum twg xim nqaij yog kev nyuab siab raws li tag nrho, nws yog qhov zoo uas yuav tau siv qhov tom qab tshem tawm xim. Yog tias tsuas yog ib qho lossis ob xim xwb, qhov kev kho kom haum xim zoo dua. Daim duab 4-4-3 tseem qhia txog kev tshem tawm xim av ntawm lwm lub kaum sab xis. Hais meej.
(5) Stabilizing qhov sib npaug ntawm qhov nruab nrab ntawm cov xim (gray balance) Nyob hauv cov xim zoo tib yam, cov xim nruab nrab ntawm Y, M, thiab C tsuas yog ntau dua, tiam sis muaj ntau ntau cov cim ntau ntawm cov ntawv thiab number case ntau hauv cov txheej txheem luam ntawv. Tsis tshua muaj xim ntau overprints tsis pub kom tsis ruaj tsis khov. Thaum ib qho tseem ceeb uas tau muab tso ua ib qho ntsiab lus ntawm lub suab sib xws li lub tshuab los sis lub koob yees duab tsis yooj yim, nws yuav ua rau ib nrab xim nrau. Yog li, qhov tsim nyog ntawm cov xim tom qab raug tshem tawm kom tshem tawm tus lej ntawm Y, M, thiab C uas yog Grayed tawm ntawm Y, M, thiab C, thiab dub phaj yog ntxiv rau kom tsis muaj cov xim puag , yog li ntawd ib tug txaus siab ua tau yuav tau, thiab qhov nruab nrab grey nruab nrab yog khaws cia. ruaj khov.