Yuav ua li cas kho cov teeb meem prepress system ntawm cov ntawv xov xwm xim
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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Cov xov xwm niaj hnub tshaj tawm txoj kev lag luam twb tau hloov los ntawm cov kev sib txuas ntawm cov kev kawm rau lub sijhawm ntawm lub computer laser phototypesetting, tshwj xeeb tshaj yog qhov tshwm sim ntawm cov xim duab publishing uas tau ua rau kev lag luam luam tau zoo tshaj plaws lub kiv puag ncig. Nyob rau hauv xyoo tas los, tus xov tooj ntawm cov ntawv xov xwm xim muaj ntau zog. Nws muaj kev tawm tsam rau cov nyeem nrog cov yeeb yuj xim, cov duab tseeb thiab cov novels muaj tswv yim. Nws txaus siab rau cov neeg nyeem cov qib siab ntawm kev txaus siab. Txawm li cas los, qhov zoo ntawm cov ntawv xov xwm xim yog tam sim no tsis ncaj ncees. Gorgeous, ntuj, zoo-txhais, yog overprinting: ib txhia yog dim, tsis tshua txhais, thiab qhov muag plooj. Ntxiv nrog rau cov teebmeem tsis muaj tseeb thiab tsis sib txig xim ntawm cov txheej txheem luam ntawv, kev ua haujlwm tsis zoo, tshwj xeeb tshaj yog cov txheej txheem pre-press system parameter chaw kuj yog qhov tseem ceeb.
Tam sim no, yuav luag txhua tus siv qhov kev tsim duab ntawm tus Thawj Tsim los yog Huaguang, thiab cov duab ua tiav hauv Photoshop software. Nws yog ib qhov tseem ceeb ntawm kev txhim kho cov txheej txheem. Txhim kho cov kab ntawv kho tsis zoo ntawm Photoshop software, koj yuav tsum xub to taub cov yam ntxwv ntawm cov ntawv xov xwm xim luam ntawv.
Vim tias nws ceev npaum licas, muaj ntau ntau, thiab tsis tshua tsim nyog rau cov ntaub ntawv luam tawm, cov ntawv xov xwm luam ntawv txiav txim siab nws cov ntawv sau ua cov duab raws li cov duab kev luam, xim xim, hloov pauv, thiab lwm yam. Muaj ntau qhov sib txawv ntawm cov ntawv luam tawm ntawv.
1. Cov ntawv xov xwm tau muaj qhov qis tshaj
Whiteness yog lub cev muaj nuj nqi uas siv los piav txog cov khoom siv ntawm cov ntaub ntawv. Feem ntau ntawm cov ntawv xov xwm muaj tsawg tus xaj dawb. Ntawm qhov one hand, nws yuav ua luam xim xim nrig vim xim ntawm daim ntawv; ntawm qhov tod tes, nws yuav ua rau muaj teeb meem xws li loj loj gray ntawm cov luam, sib txawv me ntsis ntawm daim duab, thiab tsis txaus txaus.
2. Cov ntawv xov xwm tsis tshua muaj qhov sib luag
Xov xwm tshaj tawm yog ntau rougher tshaj lwm cov ntaub ntawv, tshwj xeeb tshaj yog coated ntawv, nrog tsawg smoothness. Qhov txo ntawm daim duab xim yog sau raws li cov teev uas yog lub hauv paus loj. Cov cwj mem muaj qhov qis hloov qis dua rau cov ntawv xov xwm ntxhib, thiab rov qab kho dua qub dua.
3. Cov ntawv xov xwm dimensional stability yog pluag
Lub ntsiab ntawm cov ntawv xov xwm yog cov slurry, uas muaj cov ntsiab lus loj impurity thiab cov dej tsis haum, thiab qhov ntev ntawm daim ntawv tsis zoo. Nws yog ib qho yooj yim uas yuav ua rau duab misalignment thaum lub sij hawm xim luam ntawv. Kev yuam kev overprint yog generated. Qhov no yog ib pob taws ntawm cov ntawv xov xwm thiab ib qho tseem ceeb hauv kev luam ntawv uas nyuaj kawg rau kev tswj thiab cuam tshuam txog kev luam kom zoo.
4. Cov ntawv xov xwm tseem ceeb heev
Cov hlwv capillary ntawm cov ntawv xov xwm xoob ntawm cov ntawv xov xwm yog cov loj loj, yog li qhov nqus ntawm daim ntawv yog loj thiab nthuav ntawm tus cwj mem ntawm daim ntawv ua kom yooj yim los ua rau cov dots yuav tsum smeared thiab graded hauv qhov tsaus ntuj ntawm cov duab. , yuav ua rau kev ploj zuj zus tsis yooj yim.
5. Cov ntawv sau tau nce siab loj heev
Cov pam ntawm cov ntawv luam tawm yog deformed los ntawm kev luam ntawv siab, ua rau cov lus qhia kom nthuav dav. Vim tias cov ntawv xov xwm luam ntawv siv cov ntaub ntawv ntxeem tau thiab osmotic cim, qhov txiaj ntsim ntawm cov khoom poob yog 20% -30% siab dua ntawm cov ntaub ntawv.
6. Cov xim gamut ntawm luam ntawv number case yog me me
Xim luam ntawv Vim muaj qhov zoo ntawm daim ntawv, cov xim gamut ntawm tus number case yog me dua cov xim gamut rau ntawm daim ntawv coated, uas yog, cov xim uas tuaj yeem ua tswv cuab yog tsawg dua reproducible.
Vim yog cov nta. Qee qhov teeb meem xim xws li tsis muaj tseeb, tsis muaj xim, ua kom luv luv, tsis muaj teebmeem xim, thiab lwm yam ntxiv, nrog rau ntau xyoo ntawm kev xyaum ua haujlwm, hais txog ntau cov phau ntawv uas muaj feem xyuam. Tus neeg sau tau piav qhia txog cov txheej txheem ntawm kev tsim kho qhov kev npaj ua ntej. Tus qauv ntawm cov parameter. Txhim khu qhov zoo tshaj ntawm cov ntawv xov xwm xim luam ntawv.
Luam theej duab
1. Kev txheeb xyuas qhov scan yuav tsum yog ob npaug ntawm cov xov tooj dai. Yog tias qhov screen yog 120 kab / nti, qhov kev daws teeb meem yuav tsum yog 240 tawm ntu / inch.
2. Ua kom muaj xim zoo nkauj thiab kev kho me ntsis rau hauv RGB Hloov kev hloov me ntsis hauv CMYK.
3. Kev ua kom zoo. Txij li ntawm qhov txho ntawm cov ntawv xov xwm loj loj, daim duab yuav tsum kom zoo tuaj. Ntxiv mus, txij li qhov sib piv ntawm daim duab luam tawm ntawm cov ntawv xov xwm me me, qhov sib txawv ntawm qhov sib txawv me me yog qhov tsim nyog tau nce, thiab cov suab nrov ntau ntau yog tsim nyog kom txo qhov half-hour dot nyob rau hauv lub siab tseem ceeb, thiab qhov kev ntsuas ntawm lub suab nrab yog lowered nyob rau hauv lub suab tsaus nti. Txoj kev kho kom zoo nkauj tuaj yeem ua tau zoo kom ua tau zoo dua qub kom zoo dua qub.
Kev sib cais xim
1. Kev luam tawm tus number case
Nyob rau hauv cov ntawv qhia zaub mov Photoshop, xaiv cov CMYK kev cai ntawm CMYK kev nqis-siab, raws li qhia hauv daim duab 1.
Pop tuaj rau lub qhov rais CMYK raws li qhia hauv daim duab 2;
Teem cov nram qab no rau hauv cov xaum kua kev xaiv:
1 case xim (Inks Colours). Qhov "case number one" yog thawj zaug hauv "printing number case". Feem ntau yog ib qho ntawm Swap (web offset luam ntawv) chaw siv.
2 teev poob (Dot Gain). Cov nyiaj poob haujlwm no tseem hu ua qhov nce qhov nce ntawm qhov nyiaj poob haujlwm raug mob, uas txhais tau hais tias cov teev yog 50% hauv nruab nrab, thiab qhov txiaj ntsim tau nce thaum lub sijhawm luam tawm. Vim hais tias qhov loj tshaj plaws ntawm qhov teev yog kis ntawm ntug kev thaum lub sij hawm luam tawm, ntawm ntug kev ntawm 50% yog qhov ntev thiab qhov loj tshaj plaws yog qhov loj tshaj plaws. Tom qab cov txiaj ntsig tau muab nthuav tawm lawm, qhov sib txawv ntawm cov xim sib cais txo yog nyob hauv nruab nrab kom paub meej tias cov duab tom qab luam ntawv tsis tsaus. Raws li tus nqi ntawm qhov nce nyiaj nce, cov ntaub ntawv uas tau txais los ntawm cov xim sib cais yog txo. Cov kev txo tawm no txhais tau hais tias kom them nyiaj rau qhov loj ntawm qhov loj tshaj thaum lub sijhawm kawg tom qab luam ntawv. Yog tias qhov txiaj ntsim ntawm qhov nyiaj tau los rau sab nraud loj dua, cov ntaub ntawv yuav tsum tau ua kom tsawg dua thaum cov xim sib cais ua, yog li ntawd cov ntawv luam yuav yog.
3 xim sib cais xaiv (sib cais hom GCR, UCR). GCR yog ib lub qauv uas tsis yog xim, uas yog, Hloov Chaw Grey; UCR nyob hauv qab xim.
GCR pub tus cwj mem dub los hloov xim xim rau hauv lub suab nrov tas nrho. Dub Generation muab 5 txoj kev ua rau cov neeg siv xaiv los ntawm cov suab nrov uas pib dub hloov chaw, namely tsis muaj (tsis muaj dub hloov chaw), Light40% (ib sab hauv 40% cov laus tsis yog tus neeg hloov cev), Tshaj plaws (Tag nrho cov hloov chaw dub) Qis qis duab ntawm daim duab muaj ntau qhov loj, qhov hloov ntawm ib nrab grey hloov yuav tsum tau tsim nyog kom tsis txhob cia tus cab thiab qhov tsis tuaj yeem ua rau ntau dhau ntawm kev luam ntawv.
4 dub version tsim cov dub version ntawm lub suab nrov. Cov kev cai dub version ntawm cov khoom nkhaus yog qhia nyob rau hauv daim duab 3. Qhov dub version ntawm lub suab tso cai rau tus neeg siv xaiv cov dub version ntawm lub suab hloov. Cov kev cai nyob rau hauv lub suab nrov laus dub tso cai rau tus neeg siv los kos cov dub version ntawm daim duab kom muaj qhov pib taw tes, qhov siab kawg nkaus, thiab qhov kev hloov ntawm qhov nruab nrab ntawm qhov nruab nrab. Photoshop software tau ua ntau txoj kev tshawb fawb ntawm lub suab ntawm cov dub version vim hais tias cov dub version plays lub luag hauj lwm tseem ceeb heev hauv kev luam duab. Dub tau ntxiv rau YMC peb thawj xim. Qhov no ua rau theem tsaus ntuj ntawm cov duab luam feem ntau nce qhov ceev ntawm 0.4-0.8, uas yog qhib qhov sib npaug hauv tag nrho ntawm cov duab, ua rau cov txheej thiab qhov sib txawv ntawm cov xim tuab qhov, thiab ua kom cov duab ntau dua hauv stereoscopic. Muaj cov cai hauv qab no nyob rau hauv txoj kev cai dub:
Yog hais tias nws yog xim dub thiab tsaus sib xyaw xim laus thiab xim muaj xim, koj tuaj yeem siv qhov dub version ntawm lub teeb, pib ntawm 20% - 30% ntawm ntsuab version. Lub suab tsaus nti yog nruab nrab ntawm 80% thiab 90%, thiab midtones yuav tsum tau hloov raws li cov duab tshwj xeeb.
Yog hais tias nws yog achromatic, xim yog tus pab pawg, qhov dub version yuav tsum tau siv los ntawm qhov chaw kaj, thiab qhov tsaus ntuj tshaj plaws yuav tsum tau tob rau 100%.
5 Dub InkLimit Qhia qhov siab tshaj tus nqi ntawm qhov sib npaug ntawm plaub xim nqaij tawv. Rau cov ntawv xov xwm luam tawm, qhov nqi no feem ntau yog kwv yees li 260%, uas yog txiav txim ncaj qha los ntawm cov txheej txheem luam ntawv. Yog hais tias qhov dot yog loj tuaj thaum luam ntawv, tus nqi yuav tsum tsawg. Txwv tsis pub, qhov tsaus nti yuav tuag thiab qhov yuav poob.
6 Dub InkLimit: Ntau hom keeb kwm yuav tsum muaj qhov sib txawv. Feem ntau, qhov siab tshaj tus nqi hluav taws xob sib cais yog 70%. Nyob rau hauv xim ntawv luam ntawv luam ntawv, peb feem ntau siv 85% vim tias cov ntaub ntawv no tuaj yeem xyuas kom meej tias dub dub ntawm cov ntawv luam tawm yog dub txaus, uas yog, muaj qhov sib txawv txaus.
7UCA (Nyob rau hauv Xim Ntxiv) Amonunt tom qab xim nce: mas kom nce cov ntaub ntawv CMY hauv maub.
Tom qab teeb qhov kev sib cais ntawm cov xim, nws tseem tau ua tiav hauv Photoshop raws li cov qauv qub. Ua raws li tus qauv tseem ceeb hauv koj cov kev ua: xyuas kom grey tshuav nyiaj thaum lub sijhawm luam ntawv. Qhov nyiaj tshuav grey yog superimpose tus nqi ntawm cov cyan, magenta, thiab daj cov phev raws li cov yam ntxwv luam ntawv kom tau qhov muag pom nruab nrab gray xim, uas hu ua lub grey tshuav. Nyob rau tib lub sij hawm, qhov feem pua ntawm cov xim ntsuab, xim daj thiab daj yog xa mus raws li daim npav txheeb nyiaj ntawm qhov point. Nws tuaj yeem hais tau tias tsis hais tus phaj ua los yog luam ntawv, tsuav yog qhov ntsuas tshav ntawm tus cwj mem ntawm tus cwj pwm kom zoo zoo, nws yog ib nrab qhov teeb meem daws tau.