Kev txheeb xyuas cov xim tshwj xeeb hauv Kev Tsim thiab Luam Ntawv

Dab tsi yog txhais los ntawm plaub -xim offset luam ntawv rau cov ntsiab lus?
Plaub- xim txheej txheem luam ntawv feem ntau yog hais txog ntau yam kev luam ntawv uas siv peb lub ntsiab xim ntawm daj, magenta, cyan, thiab dub los tsim cov xim ntawm cov xim qub.
2. Dab tsi yog qhov chaw xim luam ntawv rau lub hau?
Spot color printing yog hais txog cov txheej txheem luam ntawv uas siv cov xim inks ntxiv nrog rau plaub xim thawj (daj, magenta, cyan, thiab dub) los tsim cov xim ntawm cov ntaub ntawv qub. Hauv kev ntim khoom, cov txheej txheem xim xim luam ntawv feem ntau yog siv los luam ntau qhov chaw ntawm cov xim tom qab.
3. Yam khoom twg yuav tsum tau luam tawm siv plaub - xim txheej txheem luam ntawv?
Cov duab uas ntes cov xim nplua nuj thiab ntau hom kev hloov pauv hauv qhov xwm txheej los ntawm kev yees duab xim, cov duab kos duab zoo nkauj ntawm cov neeg pleev kob, lossis lwm cov duab uas muaj ntau yam xim sib txawv, yuav tsum muaj xim sib cais los ntawm lub tshuab hluav taws xob xim sib cais lossis cov xim desktop system scanning txheej txheem. Tom qab ntawd, lawv rov tsim dua siv plaub - xim luam ntawv txheej txheem. Qhov no yog ua tiav rau kev xav tau lossis kev xav txog nyiaj txiag.
4. Yam khoom twg yuav siv xim xim luam ntawv?
Cov npog ntawm cov khoom ntim khoom lossis cov ntawv teev npe feem ntau yog tsim los ntawm cov xim sib txawv ntawm cov xim sib txawv lossis cov xim gradient tsis tu ncua nrog rau cov ntawv nyeem. Cov xim blocks thiab cov ntawv no tuaj yeem luam tawm siv plaub - xim number case tom qab tau muab cais ua xim, lossis cov xim tshwj xeeb tuaj yeem sib xyaw, thiab tom qab ntawd tsuas yog qee hom xim tshwj xeeb number case luam tawm ntawm tib xim thaiv. Xav txog kev txhim kho kev luam ntawv zoo thiab txuag tus lej ntawm kev luam ntawv, qee zaum xim tshwj xeeb luam ntawv raug xaiv.
5. Yuav ua li cas qhov pom kev ntawm cov xim blocks hauv cov xim luam ntawv thiab cov uas tsim los ntawm plaub -xim overprinting txawv?
Cov inks siv rau hauv qhov chaw xim luam ntawv yog tau los ntawm kev sib xyaw ua ke raws li kev sib xyaw xim sib xyaw. Lawv cov xim brightness kuj tsawg thiab saturation kuj siab. Uniform spot colour blocks feem ntau yog luam tawm nyob rau hauv cov khoom siv thiab cov number case ntim yuav tsum tau nce kom tsim nyog. Thaum tus number case txheej thickness ntawm lub phaj luam ntawv loj, qhov rhiab heev ntawm tus number case txheej thickness hloov mus rau xim variation yuav txo qis, ua kom nws yooj yim dua kom ua tau zoo thiab tuab luam ntawv.
Cov xim blocks luam tawm los ntawm plaub- xim txheej txheem luam ntawv yog tsim los ntawm ntau yam xim, feem ntau yog tsim los ntawm qee qhov kev faib ua feem ntawm cov ntawv luam tawm. Thaum lub sij hawm luam ntawv, lub thickness ntawm tus number case txheej yuav tsum nruj me ntsis tswj. Kev hloov pauv ntawm tus number case txheej thickness thiab variations nyob rau hauv cov txheej txheem luam ntawv tej yam kev mob yuav yooj yim ua rau cov kev hloov nyob rau hauv cov xim siv. Kev hloov pauv hauv qhov nthuav dav ntawm cov dots, yog li ua rau kev hloov xim. Tsis tas li ntawd, txhua qhov kev hloov pauv ntawm cov xim uas ua rau cov xim thaiv yuav ua rau cov xim thaiv hloov, uas ua rau muaj kev nce hauv cov xim xim xim tsis sib xws. Yog li ntawd, cov xim blocks luam tawm los ntawm plaub - xim txheej txheem luam ntawv tsis yooj yim kom ua tiav cov xim xim xim. Yog tias cov xim ntawm cov xim thaiv no tsis tuaj yeem luam tawm hauv ib qho dhau los siv lub tshuab ntau- xim, nws kuj yog xim sib txawv vim qhov nyuaj ntawm kev tswj cov xim ntawm semi- cov khoom tiav. Tsis tas li ntawd, plaub -xim luam ntawv ua tiav cov txiaj ntsig sib xyaw ntawm kev nqus xim xim thiab ntxiv xim sib xyaw ntawm cov dots. Cov xim blocks muaj qhov ci ntsa iab thiab qis saturation. Rau lub teeb- xim xim blocks, vim qhov tsis tshua muaj nqi ntawm tus number case ntawm daim ntawv, cov xim number case yog tiaj thiab tsis muaj qhov tuab thiab ruaj khov. Vim yog lub kaum sab xis ntawm cov dots, nws tseem yog qhov kev zam uas tib neeg yuav hnov ​​​​qhov muaj cov qauv.
6. Los ntawm qhov kev xav ntawm kev txhim kho cov khoom zoo, hom khoom twg tsim nyog rau kev siv xim xim luam ntawv?
Thaum luam ntawv loj ntawm cov teeb pom kev zoo- cov xim pleev xim, nws feem ntau yog ua los ntawm kev ntxiv ib qho nruab nrab- teeb pom kev zoo rau lub hauv paus number case los npaj cov xim xim xim, thiab tom qab ntawd ua cov khoom luam tawm - xim xim. Txoj kev no, cov kua nplaum txheej yog thicker, thiab nws yooj yim dua kom ua tiav cov nyhuv sib xws thiab tuab ntawm cov xim. Yog tias siv plaub - txheej txheem luam ntawv xim, qis- tau txais cov ntxaij vab tshaus offset yuav tsum tau siv. Txawm li cas los xij, qis -tau txais cov ntxaij vab tshaus offset yog qhov ua rau me ntsis deteriorated number case faib vim cov xuab zeb me me los yog cov cua tsis zoo thaum lub sij hawm ua phaj, ua rau tus number case dots me me, ua rau cov xim tsis sib xws: thaum luam ntawv, nws kuj muaj dej ntau dhau ntawm cov phaj phaj. Daim ntawv hmoov sib sau rau ntawm daim ntawv luam ntawv thiab daim pam roj hmab, thiab qhov smoothness ntawm daim ntawv yog tsawg, uas ua rau tsis zoo hloov ntawm cov cwj mem me me. Yog li, xim yuav sib dua thiab xim tsis sib xws.
Rau thaj chaw loj ntawm cov xim tsaus nti, plaub - xim txheej txheem luam ntawv tau txais yuav, uas tuaj yeem tsim los ntawm ntau qhov siab - qhov ntom ntom ntawm ntau xim. Yog hais tias tus number case txheej yog tuab heev, nws yooj yim rau rov staining. Txawm li cas los xij, siv cov txheej txheem xim xim luam ntawv, tsuas yog ib qho xim yuav tsum tau luam tawm, thiab muaj tsawg dua qhov rov qab staining. Nrog rau plaub- txheej txheem luam ntawv xim, qee qhov ntawm cov duab thiab cov ntawv yuav muaj ntau xim; thaum nrog cov txheej txheem xim xim luam ntawv, cov khoom sib thooj tau luam tawm nrog tsuas yog ib qho xim, zam qhov ua tau ntawm kev sau npe yuam kev.
7. Los ntawm kev xav ntawm cov txiaj ntsig kev lag luam, hom khoom twg tsim nyog rau kev luam ntawv monochrome?
Los ntawm kev xav ntawm cov txiaj ntsig kev lag luam, qhov tseem ceeb yog qhov kev siv tshuab luam ntawv xim xim tuaj yeem txo cov xim sib cais. Vim tias txo tus naj npawb ntawm cov xim sib cais tsis tsuas yog txuag cov nqi luam ntawv xwb tab sis kuj txuag cov nqi rau ua ntej - xovxwm ntau lawm.
8. Cov khoom puas tuaj yeem siv plaub - xim luam ntawv thiab xim xim luam ntawv tib lub sijhawm?
Yog tias cov khoom lag luam cov duab muaj ob txheej xim thiab cov xim loj, cov xim txheej tuaj yeem luam tawm siv plaub- xim luam ntawv, thaum qhov loj ntawm cov xim tuaj yeem luam tawm siv cov xim xim luam ntawv. Qhov kom zoo dua ntawm txoj hauv kev no yog tias cov xim txheej txheej tuaj yeem ua tiav cov duab tsim tawm los ntawm kev tswj qhov ntom ntom ntawm cov khoom, thiab cov xim xim tuaj yeem tau txais cov xim zoo nkauj thiab cov xim tuab los ntawm qhov tsim nyog nce tus number case ntim. Txoj kev no feem ntau yog siv rau hauv kev luam ntawv ntawm high - cov khoom ntim khoom kawg thiab cov nyiaj muas noj, tab sis vim muaj cov xim ntau ntxiv, nws kuj ua rau muaj kev nce nqi ntawm cov phaj ua rau luam ntawv.
9. Thaum siv plaub- xim txheej txheem luam ntawv, yog tias muaj thaj tsam loj ntawm cov xim dub, yuav ua li cas lub phaj- yuav ua kom cov xim dub tuab dua?
Thaum siv plaub- xim txheej txheem luam ntawv, txhawm rau kom ntseeg tau tias cov khoom tsim tawm ntawm cov suab thiab cov xim muaj tseeb, lub thickness ntawm txhua xim txheej number case yuav tsum tau tswj nruj me ntsis. Feem ntau, hauv plaub - xim luam ntawv, cov khoom ntom ntom ntawm cov xim dub yuav tsum tsis pub tshaj 1.8. Kev luam tawm ib cheeb tsam loj ntawm cov khoom dub ntawm qhov ntom ntom yuav tsis muaj qhov pom kev zoo. Txoj kev siv feem ntau yog sib tshooj txog 40% cyan ntawm thaj tsam loj ntawm cov khoom dub.
Ib qho me me ntawm cyan yog overlaid ntawm lub hauv paus dub. Los ntawm lub ntsej muag xim, nws tseem zoo li dub, tab sis qhov pom kev pom yuav muaj ntau yam ntxiv. Thaum tsuas yog ib qho xim ntawm cov xim dub tau luam tawm ntawm daim ntawv dawb, thaum lub sij hawm luam ntawv, cov ntawv fibers thiab cov ntawv plua plav tau sau rau ntawm daim pam roj hmab, lossis rau lwm yam, nws cuam tshuam rau kev hloov ntawm tus number case, uas yuav ua rau cov xuab zeb dawb tshwm rau ntawm cov khoom dub. Qhov sib piv dub thiab dawb yog pom tseeb heev. Yog hais tias cyan screen printing yog overlayed, txawm yog hais tias muaj ob peb xuab zeb qhov nyob rau hauv cov khoom dub, vim hais tias qhov chaw tsis yog lub hauv paus ntawv dawb tab sis lub cyan dots, piv rau cov dub thiab dawb sib piv, cov dub -cyan contrast tsis yog ib qho tseem ceeb. Qhov no tuaj yeem ua rau cov keeb kwm yav dhau dub zoo ib yam thiab zoo nkauj dua.