Ncuav mog qab zib Box Nrog Paj Xim Management Printing Workflow thiab txheej txheem tswj

Ncuav mog qab zib Box Nrog Paj xim tswj luam ntawv workflow thiab txheej txheem tswj

Raws li peb txhua tus paub, lub hom phiaj ntawm kev tswj xim yog siv cov txheej txheem ntawm software thiab kho vajtse ua ke los kho thiab tswj cov xim txiav thiab sib npaug hauv cov txheej txheem tsim khoom, txhawm rau xyuas kom meej tias qhov sib xws ntawm cov xim yog khaws cia nyob rau hauv tag nrho cov txheej txheem ntawm cov tswv yim. , tso saib thiab tso zis, thiab thaum kawg paub txog kev ua kom ncaj ncees ntawm cov xim (qhov koj pom yog qhov koj tau txais). Yog li, yuav ua li cas los tswj cov xim kom sai thiab ua tau zoo? Tus kws sau ntawv xav tias tsim kom muaj kev ntsuas tau thiab rov ua dua cov txheej txheem tswj hwm, tswj hwm cov ntaub ntawv luam tawm, cov khoom siv cuam tshuam thiab ib puag ncig, thiab ua kom zoo dua cov ntaub ntawv ntws thiab cov ntaub ntawv ntws hauv cov txheej txheem luam ntawv tuaj yeem ua tiav qhov kev xav tau.

I. Taw qhia txog kev tswj xim

Lub ntsiab lus ntawm kev tswj xim xim kev tswj xim yog kev siv thev naus laus zis ntawm kev txhais lus kom raug thiab ua tiav cov ntaub ntawv xim. Nws tau lees paub tias yog txoj kev ua tau zoo tshaj plaws kom ua tiav kev tsim kho ntawm cov xim thiab kom tau txais cov xim ruaj khov dua. Nyob rau hauv tag nrho cov txheej txheem ntawm kev luam cov duab xim thiab cov ntaub ntawv, cov xim tswj xyuas kom zoo ib yam ntawm cov duab thiab cov ntaub ntawv cov ntaub ntawv nyob rau hauv tus txheej txheem ntawm hloov xim los ntawm ib tug ntaus ntawv qhov chaw xim mus rau lwm qhov chaw xim nrog qhov tsawg kawg nkaus xim distortion.

Ob, xim tswj kev ua haujlwm

Cov txheej txheem ntawm kev tswj cov xim tuaj yeem muab faib ua plaub Cs: Calibration, Characterization, Conversion, thiab Check.

① Calibration. Qhov no yog cov txheej txheem yooj yim rau kev tswj cov xim zoo, yog hais txog kev hloov kho ntawm txhua lub cuab yeej, xws li cov saib, scanners, digital prototyping machines thiab printing presses, kom ntseeg tau tias nws ua tau raws li qhov tseeb ntawm cov chaw tsim khoom specifications, thiab tswj tau ib co degree ntawm kev ruaj ntseg los xyuas kom meej tias cov xim ua tau raws li los yog ze rau tus qauv ib txwm muaj. Calibration yog lub hauv paus ntawm kev tswj xim thiab qhov pib ntawm kev ua haujlwm. Nws lub hom phiaj yog txhawm rau ntsuas cov khoom siv thiab cia nws khiav ruaj khov, thiab kev ruaj ntseg ntawm cov cuab yeej yog qhov yooj yim rau kev tswj xim kom ua tau zoo. Yog li ntawd, calibration tseem ceeb heev nyob rau hauv cov txheej txheem ntawm kev tswj xim.

② Tus cwj pwm. Nws yog hais txog cov tswv yim los yog cov zis ntawm tus qauv xim code ntawm lub calibrated ntaus ntawv, thiab tom qab ntawd kev ntsuas ntawm cov xim codes, raws li cov ntaub ntawv tau los txiav txim cov xim kev ua tau zoo ntawm cov cuab yeej, tsim cov xim profile (ICCCProfile). Lub hom phiaj yog los tsim kom muaj ntau yam xim ntawm cov khoom siv lossis cov khoom siv thiab sau lawv cov yam ntxwv hauv kev ua lej rau kev hloov xim xim. Kev ua tus cwj pwm yog ib feem tseem ceeb ntawm kev tswj xim, tab sis kuj yog qhov precondition ntawm kev tswj xim.

③ Hloov pauv. Hais txog kev hloov dua siab tshiab ntawm cov xim ntawm cov duab lossis lwm yam khoom los ntawm qhov chaw xim ntawm ib lub cuab yeej mus rau qhov chaw xim ntawm lwm lub cuab yeej thiaj li tau txais cov xim zoo ib yam.

④ Tshawb xyuas. Ntawd yog, kev tshuaj xyuas thiab kev ntsuam xyuas cov xim sib txuam ntawm txhua lub cuab yeej.

3. Printing txheej txheem tswj raws li kev tswj xim

1. Tswj kev ruaj ntseg ntawm cov ntaub ntawv luam tawm

Kev ruaj ntseg ntawm cov ntaub ntawv yog lub hauv paus ntawm tau txais cov ntawv luam tawm zoo. Nyob rau hauv cov txheej txheem tsim khoom txhua hnub, nws yog ib qho tseem ceeb heev los tswj kev ruaj ntseg ntawm cov ntaub ntawv luam ntawv xws li luam ntawv phaj, tus tsim tawm, tus ciav dej, ntawv thiab number case. Qhov zoo ntawm tus thawj ncaj qha cuam tshuam thiab txiav txim siab qhov zoo ntawm cov ntawv luam ntawv, ua kom lub tshuab luam ntawv zoo tshaj plaws, peb yuav tsum xub muaj qhov zoo ntawm cov khoom qub rau kev lees paub. Kev teeb tsa ntawm tus tsim tawm thiab cov dej ciav dej yuav tsum tau ua raws li nruj raws li cov kev qhia tshwj xeeb thiab cov kev cai, thiab nws lub xeev yuav tsum tau saib xyuas tsis tu ncua, thiab cov ntsiab lus tswj hwm tau qhia hauv Table 1. Daim ntawv thiab tus number case ncaj qha cuam tshuam rau kev luam ntawv zoo, yog li nws yog tshwj xeeb yog ib qho tseem ceeb los saib xyuas kev ruaj ntseg ntawm daim ntawv thiab number case. Daim ntawv thiab tus cwj mem raug tswj raws li cov qauv tsim nyog ntawm ISO12647-2 thiab ISO2846-1 raws, saib Table 2 thiab Table 3.

2. Tswj kev ruaj ntseg ntawm cov khoom siv luam ntawv

Lub xeev ruaj khov ntawm lub tshuab luam ntawv yog lub zog lav kom tau txais cov khoom zoo thiab ruaj khov. Lub tshuab luam ntawv xav tau kev saib xyuas tsis tu ncua thiab kev saib xyuas kom ntseeg tau tias lub tshuab yog ib txwm nyob rau hauv lub xeev ua haujlwm ruaj khov kom ntseeg tau tias qhov sib xws thiab rov ua dua ntawm kev luam ntawv, yog li txhawm rau xyuas qhov zoo ntawm cov ntawv luam tawm.

Rau kev tswj xim, kev ruaj ntseg ntawm CTP phaj-ua thiab tshuab luam ntawv yog qhov tseem ceeb. CTP phaj ua tshuab tuaj yeem ntsuas tau los ntawm kev tso tawm cov phaj luam ntawv, tshuaj xyuas thiab kho qhov tso zis dot cheeb tsam piv kom tau txais cov txiaj ntsig linearized. Txhawm rau kom muaj kev ruaj ntseg ntawm cov xovxwm luam ntawv, lub xeev kev ntsuam xyuas thiab kev kho ntawm cov xovxwm luam ntawv tuaj yeem ua los ntawm GATF lossis G7 txoj kev xeem.

3. Tswj kev ruaj ntseg ntawm qhov chaw luam ntawv

Qhov chaw tsim khoom ruaj khov ua lub luag haujlwm tseem ceeb hauv kev ua kom ruaj khov ntawm kev luam ntawv zoo. Lub tshuab luam ntawv yuav tsum nruj me ntsis tswj qhov kub thiab txias (raws li qhia hauv Table 4). Kev hloov ntawm qhov kub thiab av noo nyob rau hauv lub rooj cob qhia yuav ua rau cov ntawv deformation, ua rau tsis raug overprinting, cuam tshuam qhov sib npaug ntawm tus number case thiab number case kom qhuav, thiab thaum kawg cuam tshuam rau kev luam ntawv zoo.

4. Tswj kev ruaj ntseg ntawm kev luam ntawv zoo

Kev ruaj ntseg luam ntawv zoo tuaj yeem ua tiav los ntawm kev ua kom ruaj khov dot hloov thiab tus number case ruaj khov, ruaj khov dot hloov tuaj yeem ua tiav los ntawm kev ua kom ruaj khov luam ntawv, thiab tus number case ruaj khov tuaj yeem tswj tau los ntawm kev tswj cov av ntom ntom lossis chromaticity, xws li kev tswj cov txheej txheem ntawm G7. .

G7 yog raws li CTP lub computer ncaj qha phaj ua thiab spectrophotometerry, los ntawm spectrophotometer los ntsuas thiab tswj qhov nruab nrab grey tshuav nyiaj li cas ntawm daim ntawv luam ntawv, Siv HighlightContrast (HC), HighlightRange (HR), thiab ShadowContrast (SC) raws li kev tswj, Ib qho tshiab luam tawm. Txoj kev tswj xyuas zoo raws li qhov nruab nrab grey luam ntawv ntom ntom nkhaus (NPDC) kom phim cov txiaj ntsig pom ntawm daim duab tau thov.

Kev xeem G7 tau ua tiav ob zaug. Hauv kev luam ntawv thawj zaug, CMYKRGB tau tswj raws li ISO tus qauv number case xim txheej txheem hauv Table 3. Tom qab ua tau raws li qhov yuav tsum tau ua, 1000 nplooj ntawv tau luam tawm nyob rau hauv tib lub sijhawm rau kev sib khi. Tom qab ntawd, qhov nruab nrab grey luam ntawv ntom ntom nkhaus NPDC tau kos manually (siv G7FanGraph daim ntawv, raws li qhia hauv daim duab 1) lossis nrog kev pab los ntawm IDEAlinkTMCurve software, thiab cov nqi tso tawm tau suav thiab kho kom tau txais RIP nkhaus tshiab.

Lub sijhawm thib ob yog luam tawm thiab hu rau tus yam ntxwv kuaj version ntawm RIP nkhaus cov zis tau txais tom qab thawj luam ntawv. Ua ntej, CMYKRGB raug tswj kom ua tau raws li ISO ntsig txog tus cwj pwm xim xim (saib Table 3), thiab tom qab ntawd cov hmoov tshauv yog tswj. Ua kom HC, HR thiab SC ua tau raws li cov cai ntawm G7 (saib Table 5). Tom qab kev tswj xyuas cov ntaub ntawv pov thawj ua tau raws li qhov yuav tsum tau ua thiab kev luam ntawv zoo ruaj khov, cov ntaub ntawv ntawm IT8.7/4 digital label ntsuas yog muab rho tawm los ntawm cov ntaub ntawv pov thawj. Raws li IT8.7/4 ntsuas cov txiaj ntsig, peb tuaj yeem ua ICCProfile, uas qhia txog qhov xwm txheej ntawm cov xovxwm luam ntawv, thiab ua tiav kev npaj rau kev tswj xim.

Iv. Xaus

Kev siv ntawm kev tswj xim yuav tsum tau ua raws li kev tsim khoom ruaj khov, uas yog, cov khoom siv luam ntawv, lub xeev lub tshuab thiab ib puag ncig yuav tsum nyob ruaj khov. Tsim kom muaj kev tswj xyuas cov txheej txheem zoo kom ntseeg tau tias cov khoom tsim tau ruaj khov tsis yog tsuas yog pab tau rau kev siv cov xim tswj, tab sis kuj los xyuas kom meej tias kev tswj cov xim tuaj yeem ua nws lub luag haujlwm siab tshaj plaws thiab txhawb kev txhim kho txuas ntxiv ntawm kev luam ntawv zoo.