Hnov xim muaj peev xwm tswj xyuas kev txawj ntse
Peb yog ib lub lag luam loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv nyuaj, 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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Nyob rau hauv xyoo tsis ntev los no, nyob rau hauv lub luam ntawv ntawm cov ntawv ntim cov khoom, ntau qhov chaw ntawm cov xim colour printing tau txais. Cov yam ntxwv ntawm qhov chaw xim luam tawm yog: qhov loj hauv cheeb tsam muaj xim pob zeb yog dazzling, thiab cov khoom siv txee tso tau zoo; qhov txawv xim tshwm sim los ntawm dot overprinting thiab dot deformation txo, xim yog ruaj khov, thiab yooj yim kom pom. Cia peb tham txog daim ntawv thov thiab kev tswj xim xim ntawm qhov chaw xim xim nrog cov neeg ua haujlwm kev lag luam.
Ua ntej, qhov kev paub ntawm cov xim nqaij ntawd
Tam sim no, feem ntau cov ntim thiab cov luam ntawv muag kuj rov qab rau kev ntsuas thiab kev tswj ntawm qhov chaw xim, thiab feem ntau vam khom rau kev paub txog cov neeg ua hauj lwm los tso xim xim. Qhov tsis zoo ntawm qhov no yog qhov sib piv ntawm cov xim muaj xim ntawm qhov tsis muaj tseeb, lub sij hawm muab sij hawm ntev ntev, thiab tus cwj pwm tsis muaj txiaj ntsim zoo. Muaj qee lub zog loj ntim thiab luam ntawv tau txais ib qho chaw xim xim kua mis los tswj lawv.
Qhov chaw xim xim kua cuav tis tau muaj hauv computer, xim txuam software, spectrophotometer, analytical balance, ink number meter, thiab number case meter. Siv qhov system no, daim ntawv thiab tus cwj mem feem ntau tsis yog siv los ntawm lub tuam txhab tso rau hauv cov ntaub ntawv, thiab xim txuam software yog siv rau lub computer kom xim xim qhov chaw muab los ntawm tus qhua, thiab CIE yog ntsuas los ntawm tus spectrophotometer. Tus nqi ntsuas, qhov muaj nqis, △ E, uas muaj peev xwm paub cov ntaub ntawv tswj ntawm qhov chaw xim xim cim faib.
Cov spectrophotometers tam sim no nyob rau hauv lub khw muag khoom muaj nyob hauv US X-Rite thiab Swiss Gretag hom. Txawv spectrophotometers siv ntau txoj kev xam thaum ntsuas chromatic aberration, uas yuav coj txawv tolerances.
Cov xim txawv qhov chaw uas tau piav qhia los ntawm cov xim kam rau ua tau muab faib ua lub voos kam rau siab (CIE Lab), kab mob siab ua haujlwm (CIE LCH), thiab kev siab dav kheej (CMC). 2: 1) 3 hom. Qhov me me qhov ntim ntawm qhov chromatic aberration chaw tau piav los ntawm kev kam rau siab, ntau dua qhov tseeb ntawm qhov xim.
Cov xim sib txawv ntawm qhov sib txawv ntawm kev sib raug zoo yog txawv ntawm qhov muag ntawm tib neeg lub qhov muag ntawm xim. Qhov tseeb ntawm lub thawv xws li 75%, qhov tseeb ntawm qhov kev ua siab zoo li kev ua siab ntev yog 85%, thiab qhov tseeb ntawm cov kev ua haujlwm kheej kheej yog 95%. Nws pom tau tias cov spectrophotometers sib txawv nyias muaj nyias qhov txawv ntawm cov lus piav qhia vim muaj kev sib haum siab txawv.
Nws tuaj yeem pom tau tias lub vev xaib (CIE) siv nyob hauv lub tebchaws tus qauv Lab, thiab nws cov lus piav qhia ntawm cov xim, qhov tseeb yog 75%. Uas yog hais, hauv qhov tseeb ntau, txawm tias nws yog xoom, tus nqi ΔE ntsuas los ntawm tus spectrophotometer tseem muaj qhov 25% sib txawv. Txij li thaum tib neeg lub qhov muag xiav rau xim xiav, qhov sib txawv no yog qhov tshwm sim hauv xiav. Rau cov neeg tuaj yeem tsim nyog tshaj tawm cov ntawv luam tawm lub teb chaws, qhov kev hloov me me no yuav tsum tau kov yeej. Yog li, hauv qhov kev npaj ntawm cov nqaij ntshiab muaj xim, kev siv tib neeg qhov muag kev soj ntsuam thiab kev ntsuas spectrophotometer feem ntau yog siv los daws qhov teeb meem no.
Cov ntawv zoo, luam qhov chaw tiav, thawv rau lub teeb, thawv qhuav, qhov sib txawv ntawm qhov sib txawv thiab lwm yam yuav cuam tshuam rau cov xim ntawm qhov chaw muaj xim xim luam ntawv.
Qhov thib ob, qhov tseem ceeb ntawm cov xim txawv ntawm qhov chaw xim
Hauv kev luam ntawv, muaj ntau ntau yam uas ua rau cov xim txawv ntawm qhov xim muaj xim xim uas yuav tsum tau ua. Cov xwm txheej hauv qab no yog sib tham nyob hauv qab no.
1. Cov nyhuv ntawm daim ntawv rau xim
Cov cawv ntawm daim ntawv ntawm cov xim ntawm tus number case txheej yog feem ntau reflected nyob rau hauv peb yam.
(1) Cov ntawv dawb: Daim ntawv uas muaj cov xim dawb (los yog ib qho xim) muaj cov nyhuv txawv ntawm cov xim ntawm cov ntawv luam tawm plhaub. Rau tib hom ntawv ntawm cov ntawv dawb, qhov xim dawb yog txawv, thiab qhov txawv xim ntawm cov ntawv luam tawm txheej ntawm cov zauv feem ntau yog nyob hauv cov xim dub number case hauv qhov chaw xim xim, tshwj xeeb tshaj yog rau cov xim nrog lub ci ntsa iab ntawm 70 los sis ntau tshaj, yog tshwj xeeb yog cuab kev, uas ua rau cov xim muaj xim xim. Qhov piv nws txawv heev. Yog li ntawd, nyob rau hauv cov ntaub ntawv ntau lawm, daim ntawv nrog cov xim dawb tib si yuav tsum tau siv ntau li ntau tau kom txo tau tus cawv ntawm daim ntawv dawb ntawm luam ntawv xim.
(2) Absorbency: Thaum tib tus cwj mem muab luam tawm rau ntawm daim ntawv nrog absorbency sib txawv nyob rau hauv tib lub tej yam mob, nws yuav muaj ntau yam lus ci. Cov qauv ntawm daim ntawv txiav txim siab tias muaj cov xiam oob qhab thiab pores tsim tau los ntawm daim npav tsob nroj ntawm daim ntawv. Yuav kom ua tiav txoj kev sib haum thiab smoothness ntawm daim ntawv, nws yog ib qho siv rau coatings ntawm txawv thicknesses nyob rau ntawm daim ntawv. Qhov xwm txheej thiab txheej txheem ntawm txheej coating seb lub peev xwm ntawm daim ntawv deg kom nqus tau kua. Txo haum qhov ua kom txaus tsim nyog yuav ua rau kom muaj qhov sib txawv ntawm cov xim ntawm cov ntawv luam tawm plhaub. Cov ntawv tsis-coated Piv nrog cov ntawv coated, dub dub rau sab txheej yuav tshwm tuaj grey thiab npub, thiab xim pleev xim txheej yuav txav, thiab xim ntawm cyan number case thiab magenta number yuav yog cov cuab kev tshaj.
(3) Gloss thiab smoothness: Lub ci ntawm cov ntawv luam yuav yog nyob ntawm qhov ci thiab qhov muag ntawm daim ntawv. Qhov saum npoo ntawm ntawv luam tawm yog ib qho chaw seem ntawm ib sab, tshwj xeeb tshaj yog cov ntawv.
Hauv cov xim luam yeeb, thaum lub teeb pom tshwm nyob rau ntawm daim ntawv ntawm ib qho xwm txheej ntawm 45 °, kwv yees li 4% ntawm lub teeb pom tau tias tawm. Qhov no yog thawj txheej ntawm lub teeb ci. Qhov teeb meem ntxiv ntawm lub teeb kis tau los ntawm cov ink tab thiab xaiv xyaw xim los ntawm tus cwj pwm, thiab tom qab ntawd thim rov qab los ntawm tus number case los nkag rau tib neeg lub qhov muag thiab pom tau tias yog tib neeg qhov muag. Qhov no yog xim peb saib. Yog hais tias gloss thiab smoothness ntawm daim ntawv yog siab, lub teeb reflected nyob rau saum npoo ntawm thawj txheej yog specularly thaws rov thiab tsis yooj yim nkag mus rau tib neeg qhov muag. Cov xim uas tau pom ntawm lub sij hawm no yog qhov xim xim ntawm lub cim ntim quav. Yog hais tias qhov saum npoo ntawm daim ntawv yog ntxhib thiab qhov ci ntsa iab qis, qhov sib npaug ntawm qhov zis ntawm txheej thawj yuav pom txawv. Lub sijhawm no, cov xim uas peb pom yog qhov sib xyaw xim ntawm lub ntsiab xim thiab lub teeb pom kev ntawm qhov chaw ntawm thawj txheej. Txij thaum lub teeb dawb teeb uas muaj nyob rau ntawd, lub teeb ntawm lub teeb xim tseem ceeb qis dua, yog li ntawd cov xim pom tau tias yog lub teeb pom kev, thiab qhov nqi qis yog qis thiab qhov ci ntsa iab dua thaum ntsuas los ntawm densitometer.
2. Cov nyhuv ntawm qhov kev kho rau saum npoo xim
Cov txheej txheem deg ntim tshuaj ntawm cov khoom ntim feem ntau yog cov yeeb yaj kiab (cov yeeb yaj kiab, cov yeeb yaj kiab duab), glazing (npog vanish, matt roj, UV varnish). Tom qab cov chaw no kho, cov luam tawm yuav muaj qhov sib txawv ntawm kev hloov hawj thiab hloov xim xim. Cov kev hloov no raug muab faib ua lub cev thiab kev hloov tshuaj. Cov kev hloov ntawm lub cev yog feem ntau tshwm sim nyob rau hauv qhov kev nce ntawm cov qauv kev xav thiab diffuse xav txog saum npoo ntawm cov khoom, uas muaj ib tug cawv rau ntawm cov xim census. Thaum lub teeb pom kev zoo, cov kua roj vanish thiab cov UV roj them, cov xim xim nce; thaum matte zaj duab xis los yog matte roj yog thov, xim xim yog qis. Cov tshuaj hloov tau los ntawm cov kua nplaum laminating, UV cov roj roj, thiab ntau yam khoom xyaw organic uas muaj nyob hauv cov roj UV, uas hloov cov xim ntawm cov ntawv luam tawm txheej.
3. Cov nyom ntawm tus neeg sawv cev ntawm tus neeg sawv cev ntawm xim
Tus neeg saib xyuas lub teeb ci ntsa iab yog xim tsis muaj xim nyob rau hauv daim ntawv ntawm ib qho muab tshuaj, uas yog lub luag haujlwm nyob rau hauv qhov chaw xim xim. Tus nqi ntawm tus neeg sawv cev ntawm tus choj ntxiv yog txawv, thiab cov nyhuv ntawm Hawj txawm txawv, tshwj xeeb tshaj yog cov xim xiav yog qhov cuab kev tshaj lij.
Nyob rau hauv tus txheej txheem ntawm kev npaj cov xim muaj xim, tus cwj mem thiab tus cwj pwm tshuab luam yeeb ua rau qis qis zog thiab siab ntawm tus cwj mem dua ntawm lub tshuab luam ntawv. Nws tsis tsim nyog ntxiv rau ib tus neeg saib xyuas lub teeb tawm thaum luam ntawv, tab sis tsuas yog thaum muaj xim pleev xim uas muaj kev sib txuas nrog cov neeg ua hauj lwm pom lub teeb pom kev zoo, ib qho chaw xim xim kua xim xim xim npav tuaj yeem tsim tau. Nyob rau hauv cov ntaub ntawv ntawm tib xim xim, cov xim ntawm daim npav xim thiab cov teeb meem luam yog chromatic aberration. Qhov no yog vim hais tias qhov sib ntxiv ntawm cov kua hlau hloov qhov kev hloov lub xeev ntawm cov xim hauv tus cwj pwm, yog li ntawd qhov kev nqus, kev tawg thiab kev xav ntawm tus cwj pwm tshwm sim. Qhov hloov, thiab yog li lub chromatic aberration, uas yog tshwm sim los ntawm qhov sib txawv hauv lub system.
4. Cov nyhuv ntawm qhov sib txawv hauv cov ntaub qhwv qhuav qhuav
Tsuas muab luam tawm, tus number case no tseem nyob rau hauv lub xeev ntub, thiab muaj qhov sib txawv nrog lub xeev qhuav. Qhov tshwm sim uas ntub xim xim ntim ntau dua li cov xim qhuav ntom yog hu ua tus qauv ceev ntom nti. Qhov no yog vim hais tias tus number case layer cia li luam tawm muaj qee yam khoom txaus siab, yog li ntawm qhov kev xav tau saum npoo yog qhov tseem ceeb ntawm kev xav, uas zoo nkaus li ci ntsa iab thiab siab zoo. Thaum lub plhaub taum plauv nyob rau hauv lub xeev qhuav, qhov saum toj no xav tias yog diffuse reflection, thiab xim yog ib qho kev duller dua li thaum nws cia li luam tawm.
Vim tias cov xim qhuav yog feem ntau tom qab ziab rau 30 mus rau 60 nas this, qhov no ua rau nws nyuaj rau kev ntsuas thiab tswj qhov nqaij tawv xim ceev.
Lub densitometer nrog lub tshuab ntaus ntawv tuaj yeem tshem tawm lub teeb uas tau tsim los ntawm cov zauv ntawm cov zauv ntawm cov lej ntawm txheej, thiab cov ntsuas ntub feem ntau yog nyob ze rau qhov qhuav ntom ntom nti, kom qhov ntsuas qhov ntsuas tsis cuam tshuam los ntawm ntub thiab qhuav ntawm tus number case txheej. Rau coated ntawv, qhov sib txawv ntawm kev ntsuas yog 0.05 txog 0.15, thiab qhov sib txawv ntawm qhov ntsuas ntawm cov ntawv tsis-coated yog 0.1 mus 0.2. Cov xim txawv yog txawv rau cov xim sib txawv, qhov sib txawv daj yog qhov tsawg tshaj plaws, dub yog qhov loj, thiab xiav thiab liab yog qhov chaw nyob nruab nrab. Yog li no, thaum ntsuas nrog tus densitometer, tus nqi ntsuas yuav tsum tsim nyog siab dua tus nqi ntawm tus qauv xim coj los ua tus tswj tuav lub luag haujlwm.
5. Kev hloov ntawm qhov txawv ntawm qhov system
Cov txheej txheem ntawm kev tsim daim npav xim nrog tus lej cim thiab tus xaws xaws yog ib qho "qhuav luam ntawv" txheej txheem, tsis muaj kev koom tes dej, thiab luam ntawv yog "txheej txheem luam ntawv", thiab cov kua dej ua ke koom rau hauv kev luam ntawv, yog li number case yuav tsum tau tsim nyob rau hauv tus number case printing. Cov txheej txheem emulsification ntawm cov dej hauv dej, cov cim xaj emulsified hloov hloov lub xeev ntawm cov xim pigment hauv tus number case, thiab qhov txawv xim yog inevitably ua, thiab cov khoom luam tawm tau tsaus nti thiab tsis ci.
Tsis tas li ntawd, qhov ruaj ntseg ntawm tus cwj pwm uas siv los pleev xim rau qhov chaw xim, lub thickness ntawm tus number case, qhov tseeb ntawm qhov cwj mem kua hnyav, qhov qub thiab tshiab txawv hauv cov number case ntawm thaj chaw luam ntawv, tus ceev ntawm lub tshuab luam ntawv , tus nqi ntawm cov dej nyob rau hauv lub printing, thiab lwm yam., kuj yuav muaj txawv chromatic aberrations. Qhov cuam tshuam.
Qhov peb, kev tswj ntawm cov xim nqaij tawv
Nyob rau hauv txoj kev, kom paub meej tias cov xim sib txawv ntawm cov khoom siv sib npaug thiab cov khoom sib txawv sib txawv raws li cov kev cai hauv lub teb chaws thiab cov neeg siv yuav tsum muaj, peb muaj kev tswj xyuas qhov xim ntawm qhov chaw luam ntawv.
1. Ua daim npav xim
Ua ntej, raws li cov qauv xim muab los ntawm tus neeg muas zaub, qhov feem pua ntawm cov xim muaj xim muaj xim yog muab los ntawm lub computer xim sib system; ces tus mem piv txog tus qauv ntawm tus qauv, thiab cov xim uas txawv ntawm cov duab sib txawv yog tshwm sim los ntawm cov lej ntsuas ntawm lub laub thiab lub cim ntim kabmob; (raws li lub teb chaws tus qauv (lossis tus qhua tuaj noj mov) Rau ntau qhov yuav tsum muaj xim txawv, siv cov spectrophotometer los txiav txim siab txog tus qauv, qhov kev txwv, thiab kev sib sib zog nqus, thiab ua tus txheem daim npav xim (xim txawv dhau tus qauv thiab xav tau ntxiv lus kho). Ib nrab ntawm daim npav xim yog ib qho qauv xim, thiab lwm qhov ib nrab yog xim tawv nqaij, uas yog siv rau kev yoojyim ntawm kev soj ntsuam zoo, raws li pom hauv daim duab.
2. Tshawb xyuas cov xim nqaij tawv
Xav tias qhov ntawv yog qhov tseem ceeb tshaj plaws uas cuam tshuam rau chromatic aberration, nws yog ib qhov tsim nyog siv daim ntawv luam ntawv rau "ua yeeb yam" ua ntej txhua yam luam ntawv, thiab ua kom me me corrections ntawm daim npav xim kom tshem tawm tus cawv ntawm daim ntawv.
3. Kev tswj luam ntawv
Lub tshuab luam ntawv siv lub luam tawm daim npav xim kom tswj tau qhov thickness ntawm qhov chaw xim xim ploj txheej, thiab tib lub sij hawm pab ua ntsuas cov ntsiab ceev thiab Bk tus nqi ntawm cov xim los ntawm kev ntsuas tus cwj pwm los mus kov yeej cov xim qhuav thiab ntub xim qhov txawv ntawm tus number case.
Nyob rau hauv luv luv, nyob rau hauv ntim thiab luam ntawv, muaj ntau yam vim li cas rau chromatic aberration tshwm sim los ntawm qhov chaw xim. Nws yog ib qho tsim nyog los soj ntsuam thiab daws qhov teeb meem rau ntau yam hauv qhov tseeb, sim tswj cov kev sib txawv kom tsawg, thiab tsim ib pob ntawv uas txaus siab rau tus qhua tuaj noj mov.