Xim luam ntawv tshaj qhov tseeb
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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Xim phaj txiav txim siab yog xim txheej txheem, thiab xim luam ntawv yog xim txheej txheem sib xyaw ua ke. Txoj kev sib xyaw xim no yog hu ua overprinting. Qhov yuav tsum tau ua kom zoo tshaj plaws rau cov xim luam tawm yog qhov tshaj qhov muaj tseeb, uas yog, txhua daim duab monochrome yog nyob rau tib txoj hauj lwm ntawm tib txoj hauj lwm, thiab thaum kawg qhov kev sib tw ntawm cov ntawv luam yuav ua ib daim qauv ntawm qhov tseem ceeb. Txawm li cas los xij, vim muaj ntau yam, nws yooj yim los ua qhov yuam kev ntawm qhov khoom kom tshaj tus qauv, kom ntau cov khoom ua cov khoom puas los yog cov khoom pov tseg, uas ua rau muaj kev piam sij rau lub tuam txhab. Yog li ntawd, feem coob ntawm cov neeg ua haujlwm luam ntawv tau ua txoj haujlwm tsis txaus siab rau qhov kawg no thiab tau ua tiav ib co kev ua tau zoo. Yuav kom sib txuas lus zoo dua thiab paub zoo, qhov teeb meem ntawm luam tawm xov xwm tshaj tawm yog tham txog ntawm no.
Ua ntej, qhov teeb meem uas cuam tshuam qhov tseeb ntawm overprinting
Muaj ntau ntau yam cuam tshuam rau qhov tseeb ntawm overprinting. Ntxiv rau qhov kev ua yuam kev zaj duab xis los ntawm lub phaj ua yam, ob peb lub ntsiab ntawm kev luam tawm tau piav raws li nram no:
1. Cuam tshuam ntawm cov phaj luam ntawv ntawm qhov tseeb tshaj qhov qub
Lithographic luam daim hlau yog tam sim no feem ntau nyias thiab lub teeb txhuas. Thaum lub sij hawm luam ntawv, qhov tseeb ntawm cov pov thawj yog cuam tshuam los ntawm cov kev hloov hauv nws cov duab los yog ntim.
Tus deformation ntawm cov phaj luam yog roughly tshwm sim los ntawm ob yam, thawj yog ncab deformation, thiab qhov thib ob yog qhov deformation ci. Kev deformation deev yog hais txog qhov tsis zoo uas ua rau muaj kev hloov ntawm lub phaj hlau uas ua los ntawm tus neeg teb xov tooj txoj kev tsis raug cai thaum lub sijhawm phaj-txheej txheem. Cov kab laug ci ci hais txog kev hloov ntawm cov phom loj ntawm cov ntawv luam tawm vim kev tsis zoo los ua kom lub zog ntawm cov ntawv phaj PS qhuav. Raws li peb txhua tus paub, feem ntau ntawm cov hlau muaj cov cuab yeej ntawm ua thevally nthuav. Thaum lub phaj ntub kom sov 250 degrees Celsius nyob rau hauv qhov cub, lub phaj hauv paus yuav ci muag, uas yuav cuam tshuam rau cov phaj siab loj. Qhov kub nyob hauv qhov cub yog tsis sib luag lossis ntau heev ci. Thaum mob hnyav, nws yuav ua rau pov tseg.
2. Cov khoom ntawm tus neeg ntxaij nyob rau ntawm cov khoom pov thawj muaj peev xwm xyuas kom paub tseeb tias qhov ceev ceev ntawm cov ntawv xov xwm, cov roj hmab thiab cov hlua khau pob txha 3 zoo ib yam, thiab kev hloov pauv tuaj yeem ua raws nraim li lwm lub siab. Yog hais tias lub phom lub tog raj kheej liner yog tuab heev, lub nruas tawg yog nce raws li. Nyob rau ntawm tib lub npoo sab nraud, txoj kab ceev ntawm tus menyuam qhov chaw uas muaj lub vojvoog ceev ceev. Lub txiaj ntsim ntawm qhov sib txawv ntawm qhov sib txawv yuav tsis tsuas yog ua rau lub phaj luam tawm los hnav tawm, tab sis tseem ua rau cov duab loj loj "compressed" nyob rau sab pem hauv ntej thiab nram qab. Yog hais tias tus nruas linear tseem thim thiab lub vojvoog sib txuas kom sib haum, qhov ncaj tawm ntawm lub npoo yuav qeeb qeeb, thiab cov teev yuav tsum nyob rau hauv lub sij hawm hloov cov txheej txheem, uas yuav ua rau thaj chaw duab "magnified", ua rau tsis muaj tseeb overprinting. Ntawm ob lub tshuab xim, qhov tshwm sim no tseem ceeb tshaj plaws.
3, qhov feem cuam ntawm daim ntawv ntawm overprint qhov tseeb
Hauv lithography, qhov feem xyuam tseem ceeb ntawm kev tshaj saud yog daim ntawv, tshwj xeeb tshaj yog offset paper. Qhov no yog qhov uas ua dhau los ntawm daim ntawv tsis yooj yim.
Cov lus sau ntawm daim ntawv no tsuas yog fiber ntau. Cov yam ntxwv ntawm lub fiber yog dej o thiab syneresis. Hauv kev xa ntawv luam tawm, thaum cov xim thawj zaug thiab cov xim thib ob muab teev cia, qhov tshaj ntawm qhov kev nthuav tawm thiab kev cog lus ntawm daim ntawv tsis pom tseeb. Daim ntawv muaj kev ruaj ntseg zoo, zoo smoothness, tuab txheej thiab me me dej. Nws yog tshwj xeeb tshaj yog rau qee cov ntaub ntawv nrog xoob qauv, lub teeb sizing thiab muaj zog txaus nqus dej.
Txoj kev nthuav dav thiab daim ntawv cog lus ntawm daim ntawv yog cuam tshuam los ntawm qhov ntsuas kub thiab cov av pauv ntawm qhov chaw ib puag ncig, thiab tseem muab cov nruas pov tseg thaum lub sij hawm luam ntawv. Lub zuaj cia ua rau daim ntawv nthuav tawm sab nrauv tawm ntawm lub qhov ncauj ntawm lub qhov ncauj, thiab qhov yuam kev ntawm qhov yuam kev yog ntau dua ntawm ob sab ntawm lub hau. Qhov tshwm sim no feem ntau hu ua "kaum".
4, kev cuam tshuam ntawm cov khoom sib txuas ntawm overprinting
Cov ntawv luam tawm yuav tsum raug tswj los ntawm cov khoom siv yam khoom los ntawm pib kom tiav, thiab txoj hauj lwm txheeb ze yuav tsum nyob ruaj khov thaum muaj kev sib kis thiab xa mus. Tsuas yog nyob rau hauv txoj kev no yuav ua rau cov lus tshaj ntawm overprinting qhov tseeb yuav tsum tau ntsib, txwv tsis pub lub qhov tseeb tshaj qhov yuav raug cuam tshuam zoo heev. Lub hauv paus loj yog raws li nram no: Ua ntej, daim ntawv tso, uas yog, qhov teeb meem ntawm kev ua txhua yam kev cai los ntawm kev tshaj saud; Qhov thib ob, daim ntawv nyob hauv txoj kev xa thiab hloov, vim yog tsis hloov mus, ua rau qhov chaw ntawm daim ntawv hloov. Tsis pub tshaj saud.
Tsis tas li ntawd xwb, thaum daim ntawv tawm ntawm lub nruas los, nws tau ua rau adhesion thiab tev daim tawv. Yog tias tus neeg tua neeg tsis muaj zog tiv thaiv tsis tau lub hwj chim sib luag, daim ntawv twitching tshwm sim thiab muaj me me tawm. Cov phenomenon no tshwm sim li tsis muaj tseeb overprinting ntawm ib lub cav xwb thiab ua ib tug duab dab tsi rau ntawm lub tshuab luam yeeb.
Thib ob, txoj kev tswj ntawm kev tshaj qhov qub
Rau cov xwm txheej uas cuam tshuam qhov tseeb ntawm overprinting, cov tswj kev coj ua tau txais yuav los ua tiav lub hom phiaj ntawm yog overprinting.
1. Rau cov txheej txheem ci ntawm lub phaj luam ntawv, qhov kub nyob hauv qhov cub yuav tsum yog ...
Lub tsev kawm ntawv version yuav tsum tau ua tus qauv, qhov chaw ntawm lub phaj yog centered, lub phaj yog qhov zoo, thiab lub phaj screws yog fastened. Thaum rub tawm lub phaj, rub lub screws. Tsuav lub zog qis, nws yuav tiv thaiv tsis tau lub cev ntawm lub phaj.
2. Qhov nruab nrab ntawm tus neeg nyob ntawm qhov chaw ntsuas yog ntsuas raws li tus txheej txheem. Nws yog ib qho tsim nyog yuav ua rau cov axis ntawm cov menyuam qhov taub hau thiab kab ncaj qha. Tom qab lub qhov quav zoo, ua kev ntsuam xyuas kev nyuab siab. Feem ntau, txoj hauv kev "ua si qhov screen", "teeb daim duab" thiab "nias qhov bar" yog saws los xyuas kom meej tias "siab ncaj" kom ua tau raws li qhov yuav tsum tau luam tawm precision.
3. Kev daws cov khoom ntawm cov ntaub ntawv tshaj tawm yog qhov yooj yim thiab muaj ntau yam muaj feem xyuam. Txhawm rau txhawm rau txhim kho cov ntawv ntawm daim ntawv thiab txhim khu kev ruaj ntseg, qhov kub thiab qhov av ntawm qhov chaw luam ntawv yuav tsum khaws cia zoo ib yam li tau. Nyob rau tib lub sijhawm, raws li "cov nyhuv ntawm cov ntawv", daim ntawv sau ua ntej ntawm daim ntawv ua tiav. Cov txheej txheem niaj zaus yog dai thiab dai daim ntawv, kom cov dej ntsiab lus ntawm daim ntawv yog qhov ntsuas nrog cov av noo, uas yuav txo tau cov kev zoo ntawm daim ntawv mus rau qhov chaw.
Rau cov ntawv luam nrog ntau dua qhov tseeb, koj tuaj yeem siv cov qauv ntawm daim ntawv luam thawj daim ntawv rau ntawm daim ntawv kom daim ntawv tuaj yeem nqus thiab nias daim ntawv ua ntej lub xov tooj. Qhov no yog qhov zoo rau qhov "ces kaum" thiab qhov nthuav ntawm kev hloov, tab sis tus nqi ntau dua.
4, cov txheej txheem luam ntawv yuav tsum tau ua, yog hais tias tsis muaj kev txwv version, siv cov dej tsawg tshaj plaws.
5. Kev ua haujlwm dhau los ntawm lub tshuab tsis yog, qhov tseem ceeb tshaj plaws ntawm cov khoom tsis tu ncua. Cov kev cai ntawm cov kev cai ua ntej ua ntej yog: raws qhov thickness ntawm daim ntawv, qhov siab ntawm txoj hauj lwm yog raug kho, thiab kev sib txuas ntawm kev sib txuas ntawm daim ntawv pov thawj rau hauv pem hauv ntej yog ib qho uas tig mus rau lub nruas lub nruas; qhov uas yuav tsum tau ua rau pom deb tshaj plaws yog: daim ntawv rub yog ntseeg tau. Txhua daim ntawv thiab cov ntawv xa khoom yuav tsum xyuas kom meej tias daim ntawv sau ncaj nraim. Lub zog ntawm txhua daim ntawv yuav tsum hnav thiab hnav, thiab qhib lub ntawv yuav tsum yog. Thaum ob lub kaus hniav tso tes, daim ntawv yuav tsum muaj sijhawm txaus los tswj xyuas cov ntawv zoo. Tsis tas li ntawd, lub ncuav thiab txoj hlua khi yuav tsum xyuas kom tsis muaj cua hlob.
Yuav kom ua tau raws li cov kev cai saum toj no, raws li qee qhov xwm txheej, qhov tseeb tshaj qhov tseeb tuaj yeem kho kom muaj peev xwm ua tau kom tswj tau.