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1. Ua ntej-Nias Preparation
1.1 Technical Review of Print Specifications
- Ua tib zoo tshuaj xyuas cov xim pom zoo-cov qauv siv tau raug (cov ntawv pov thawj tswv), nrog rau kev saib xyuas tshwj xeeb rau xim fidelity, duab clarity, tonal reproduction, thiab tseem ceeb technical parameters (piv txwv li, dot nce, ntxiab, solid number case density).
- Txheeb xyuas cov ntawv sau tus cwj mem; txheeb xyuas thiab sau ib qho kev sib txawv ntawm qhov kev txiav txim xim zoo nkauj thiab nthuav tawm cov pov thawj- raws li kev hloov kho.
- Ntsuas cov yam ntxwv substrate-xws li lub zog saum npoo av, qhov nqus dej, qhov ruaj khov ntawm qhov ntev, thiab cov txheej txheem kev ncaj ncees- kom ntseeg tau tias muaj kev sib raug zoo nrog cov txheej txheem luam ntawv npaj.
- Paub meej tias tus number case formulation specifications (piv txwv li, hom pigment, tsheb system, tshuab ziab khaub ncaws) thiab hnyav compatibility, tshwj xeeb tshaj yog nyob rau hauv relation to substrate adhesion thiab drying kev ua tau zoo.
- Txheeb xyuas qhov kev qhia tshwj xeeb: txiav qhov loj me, qhov ntev ntawm cov ntshav, cov npoo kev nyab xeeb, kev tso npe kos npe, qhov kev ua haujlwm siab (± 0.1 hli), thiab cov kev xav tau ntawm txhua yam (xws li, kev xav siab, lub tog raj kheej sib koom tes).
1.2 Ua ntej- Cov Khoom Siv Ua Haujlwm thiab Kev Tshuaj Xyuas Khoom
- Tshawb xyuas txhua lub phaj luam ntawv rau kev puas tsuaj rau lub cev (scratches, dents, ntug hnav), qhov tseeb qhov tseeb (phaj tuab, cov duab hauv cheeb tsam conformity), thiab mounting haum.
- Txheeb xyuas qhov ua tau zoo thiab ua kom zoo ntawm cov cim npe ntawm txhua lub tog raj kheej xim; ntsuas lub tog raj kheej circumferences kom paub meej tias qhov tseeb iav khub thiab rov ua kom ntev li qub.
- Ntsuas cov kabmob: axial thiab radial clearance yuav tsum ua raws li OEM specifications; Qhov chaw yuav tsum tsis muaj corrosion, khib nyiab, los yog lubrication tsis txaus.
- Ua kev kuaj xyuas kev lees paub zoo ntawm txhua yam khoom siv tau txais txiaj ntsig- suav nrog cov substrates, inks, cov tshuaj tua kab, cov tshuaj ntxiv, thiab cov tshuaj ntxuav tu- tawm tsam cov ntaub ntawv pov thawj cov ntaub ntawv thiab batch- cov ntawv qhia tshwj xeeb.
1.3 Lub Tshuab Ntxuav thiab Kev Tshawb Fawb Txog Kev Npaj
Ua ntej kev sim ua haujlwm, ua kom tiav kev tu thiab kev ua haujlwm ntawm cov xovxwm, tshwj xeeb tshaj yog thaum hloov ntawm txoj haujlwm:
ib. Tshem tawm thiab tshuaj xyuas spool shafts rau deformation, qhab nia, los yog coj tus cwj pwm coj.
b. Ua kom huv si huv cov tais, cov hniav kws kho mob, thiab txhua tus number case -hu rau cov menyuam siv cov kuab tshuaj pom zoo thiab lint- cov ntaub ntawv dawb.
c. Flush ink twj tso kua mis, hoses, thiab metering systems kom tshem tawm cov residue thiab xyuas kom tsis muaj kev cuam tshuam.
d. Ntxuav thiab tshuaj xyuas anilox rollers thiab phaj cylinders rau number case buildup, engraving kev ncaj ncees, thiab nto defects.
1.4 Mechanical thiab Registration Calibration
- Txhim kho thawj chav luam ntawv rau OEM specifications:
• Parallelism ntawm phaj lub tog raj kheej thiab lub tog raj kheej impression (ntsuas nrog 0.05 hli thickness gauge);
• Parallelism ntawm phaj lub tog raj kheej thiab anilox roller;
• Parallelism ntawm anilox rollers thiab number case distribution rollers.
- Calibrate pem hauv ntej- seem sau npe: kho cov ntawv sau npe rau sab nraud thiab ntev kom ua tiav tsawg dua lossis sib npaug li ± 0.15 hli sib txawv thoob plaws lub vev xaib dav.
- Tsim tus cwj mem hloov pauv hauv paus rau cov chaw nres tsheb pem hauv ntej los ntawm kev tswj cov twj tso kua mis ua kom muaj zog thiab kev sib koom ua ke ntawm cov menyuam.
- Rov sau npe calibration thiab number case hloov chaw rau cov chaw luam ntawv tom qab.
- Ua kom zoo dua tus number case rau nip chaw thiab kev sib hloov synchronization kom zoo ib yam, ntsuas tus number case zaj duab xis tuab (hauv ± 5% ntawm lub hom phiaj ntom).
- Teem thiab ruaj khov web nro thoob plaws txhua qhov chaw (tso tawm, luam ntawv, rov qab) kom tswj tau qhov chaw rov ua haujlwm (± 0.05 N kam rau ua).
2. Kev sim luam ntawv thiab txheej txheem tsim nyog
2.1 Kev sim ua thawj zaug
- Txhawb nqa xovxwm; tso lub embossing / siab lub tog raj kheej ntawm nominal nip chaw; ua thawj zaug qis-kev sim luam tawm nrawm (tsawg dua lossis sib npaug li 30 m / min).
2.2 Thawj-Khiav Kev Ntsuam Xyuas
- Txheeb xyuas cov qauv luam tawm rau:
• Kev sau npe raug (ntev thiab sab nraud);
• Kev tso duab duab txheeb ze rau luas thiab quav kab;
• Ntog teeb meem (mottling, scumming, hickeys).
- Cov ntaub ntawv sib txawv thiab siv cov kev kho kho tshuab lossis cov txheej txheem kho kom raug kom txog thaum kev ua raws li kev qhia tshwj xeeb.
2.3 Ink Optimization thiab sim thib ob
- Ua kom tus number case ncig system; Incrementally kho ink metering kom ua tiav lub hom phiaj ntawm tus cwj mem ntom ntom (SID) rau ISO 12647-2.
- Ua qhov kev sim thib ob hauv kev tsim khoom-tus neeg sawv cev ceev thiab nruj.
2.4 Kev lees paub zoo ntawm kev sim thib ob
Ntsuas cov zis tawm tsam cov qauv hauv qab no:
- Xim density: Kho tus number case viscosity (ntawm hnyav ntxiv) los yog hloov anilox rollers nrog lwm txoj kab suav yog SID deviates los ntawm> ± 0.05 ΔE₀₀.
- Colorimetric raug: Hloov cov number case batch yog ΔE₀₀ tshaj 2.0 tiv thaiv cov ntaub ntawv pov thawj hauv qab D50 illumination (CIE 2000).
- Kev daws teeb meem tsis zoo: Chaw nyob hauv substrate-cov teeb meem ntsig txog (piv txwv li, cockling, zoo li qub), mechanical anomalies (xws li, slur, ob npaug), los yog ib puag ncig yam (piv txwv li, RH-induced expansion) los ntawm lub hauv paus- ua rau kev tsom xam thiab kev cuam tshuam cov phiaj xwm.
2.5 Kev Pom Zoo Npaj Ntau Lawm
- Thaum ua tiav validation, tsim ib tug luv luv qualification khiav (yam tsawg kawg yog 500 linear meters) nyob rau hauv tag nrho cov tsis ntau lawm.
- Ua 100% hauv -kab tshuaj xyuas ntawm qhov kev khiav no rau kev sau npe, xim sib xws, thiab qhov tsis xws luag; khaws cov qauv rau archival QA tshuaj xyuas.
- Tsuas yog thaum kos npe raug cai-tso tawm los ntawm Lub Tsev Haujlwm Saib Xyuas Kev Ua Haujlwm Zoo thiab Prepress tuaj yeem ua tiav - nplai pib.
2.6 Hauv -Cov Txheej Txheem Saib Xyuas Txheej Txheem
Thaum lub sijhawm tsim khoom nyob, ua haujlwm txuas ntxiv tiag tiag- lub sijhawm saib xyuas ntawm:
- Kev tso npe ruaj ntseg (qhov system tsis pom kev tsis pom kev lossis qhov chaw ntawm phau ntawv- xyuas txhua 15 feeb);
- Xim sib xws (kev ntsuas spectrophotometric txhua 30 feeb);
- Ink zaj duab xis thickness (ntawm densitometer lossis inline spectrometer);
- Substrate drying kev ua tau zoo (cov kuab tshuaj residual kuaj los yog gloss / khawb kuj pov thawj);
- Web nro variation (cov ntaub ntawv-logged hla txhua qhov nro).
Txhua qhov kev sib txawv dhau qhov kev txwv yuav tsum ua kom muaj kev kho tam sim ntawd thiab tau sau tseg tsis yog- qhia txog kev ua raws.
