Gravure ntau faults thiab kev daws teeb meem
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.
Yog xav paub ntxiv, thov mus saib
http://www.joyful-printing.com. HMONG xwb
http://www.joyful-printing.net
http://www.joyful-printing.org
email: info@joyful-printing.net
Nyob rau hauv cov txheej txheem ntawm gravure printing, luam ntawv tsis tau tshwm sim los ntawm yam tseem ceeb xws li tshuab, cov txheej txheem, raw thiab lwm yam ntaub ntawv, thiab chaw ua haujlwm feem ntau tshwm sim, uas cuam tshuam cov khoom zoo thiab cov khoom ua tau zoo. Hauv qab no, tus neeg sau ntawv yuav muab cov kev tsim tawm hauv kev ua hauj lwm ntawm gravure luam tawm rau txhua tus neeg qhov kev siv.
Txiav kab
Cov riam kab yog ib qho kev txhaum, uas tshwm sim feem ntau hauv cov duab tsis yog. Nws yog tshwm sim los ntawm khawb ntawv tsis scraping tus number case tawm ntawm qhov chaw seem ntawm lub phaj luam ntawv. Cov kab txiav feem ntau raug muab faib ua cov kab txiav tas thiab cov kab sib cais tsis sib thooj.
Cov riam uas ruaj ruaj tau tshwm nyob rau tib qho chaw ntawm cov khoom luam tawm, feem ntau vim tias cov nplai tiav ntawm cov ntawv xov xwm tsis zoo, thiab qhov ntawm lub qhov xov tooj ntawm tes yog burred thaum lub sijhawm fais fab tuag. Lub burr tsis yog ntxuav thaum lub sij hawm polishing, resulting nyob rau hauv ib tug burr nyob rau hauv luam tawm saum npoo. Cov cwj mem tsis yog yooj yim scratched, uas ua rau cov kab txiav tas. Maj mam txhuam cov phaj nrog 1200 mesh fine sandpaper solvent kom cov nplais ntawm lub phaj du thiab burr-dawb.
Txoj hauj lwm ntawm kev sib tw riam kab ntawm cov ntawv luam tawm tsis ruaj, qee zaus nws tsis muaj, qee zaum nws tsawg dua, thiab tsis muaj qhov ua raws li tus cwj pwm ntawm cov cwj pwm uas txav mus rau sab nraud thiab sab nraud ntawm qhov teeb tsa. Qhov tseem ceeb rau qhov tshwm sim yog tias tus number case yog tov nrog impurities, tus number case pigment tsis yog tag nrho hauv av, cov khoom muaj coarse thiab insoluble hauv cov ntaub ntawv txuas thiab qhov hnyav, thiab tus number case sticks thaum sau ntawv, uas cuam tshuam rau cov cwj pwm cuam tshuam ntawm kev zais thiab ua rau lub zais muag. Tsis huv, tsim ib rab riam. Tsis tas li ntawd xwb, yog hais tias tus cwj pwm tsis zoo lawm, qhov khau npev tsis tuaj yeem kho tsis tau thiab cov riam yuav ua rau. Txoj kev daws teeb meem yog hloov cov hlab ntsha tawg, lim lub xaj kua mis nrog lub cav 2000-3000, lim tawm cov impurities hauv tus cwj pwm, thiab ntxiv ib lub raj xa mus rau ntawm cov xoom kua hluav taws xob. Ob qhov pom tseeb tias tus number case yog huv thiab tsis muaj khib nyiab.
Ghosting
Kev ywj pheej yog hais txog qhov pom ntawm ntiav ntawm kab xov los yog sab ntxoov ntxoo nyob ze cov ntawv luam tawm. Lub silhouette yog sib dua li ntawm txoj kab loj los yog lub ntsiab mesh. Tus dab no qhia txog lo lus "hnyav", uas yog, ob txoj kev ntxoov ntxoo ntawm ib qhov tob, ib lub teeb, los yog tib xim muaj dua ib zaug los yog duab. Tus ghosting yuav txo qhov ntsej ntawm ntug ntawm cov ntawv luam tawm, cuam tshuam cov xim luam yeeb ntawm daim duab duab, thiab cov xim ntawm tag nrho cov ntawv luam tawm yog qhov muag plooj, lub txheej yog distorted, thiab lub sharpness yog significantly txo. Tus ghosting yog ua los ntawm kev siab ntev ntawm tus neeg nyaum heev, lub siab ntawm lub cwj mem thiab lub unadjusted angle. Yog hais tias muaj ib tug dab nyob rau ntawm qhov kev coj ua ntawm sab nraud thiab txoj kev qhia ntawm cov khoom muag, nws txhais tau hais tias lub siab ntawm cov tub ntxhais kev siab loj dhau los ua kom muaj tus lej los ua extruded. Lub sij hawm no, peb yuav tsum txo qhov kev xav ntawm cov tub ntxhais ntawm qhov siab kom tsim nyog mus txog rau thaum cov dab hauv ploj lawm. Yog tias tsuas yog ib qho dab hauv kev coj ua, qhov no txhais tau hais tias lub siab ntawm tus kws kho mob lub siab me heev, kev sib txuas nrog cov ntawv xov xwm tsis zoo, los yog lub kaum ntse ntse ntawm tus kws kho hniav yog qhov tsawg heev. Nyob rau lub sij hawm no, lub siab ntawm tus kws kho mob lub siab yuav tsum tau nce thiab tus number case yog tsim nyog kho. Riam kaum. Thaum twg tus ghosting tsis loj, nws yuav daws tau los ntawm kev tsim nyog kom nce ceev ceev.
Nplaum
Zuaj av yog muab cais ua peb hom: adhesion, smear, thiab qab tack tom qab luam ntawv. Adhesion yog luam tawm ntawm sab tom qab ntawm cov ntawv luam tawm mus rau sab pem hauv ntej ntawm cov ntawv luam dhau los thaum lub sijhawm kev sib tw, kom lub siab thiab qis prints yog adhered ua ke, ua kev puas tsuaj rau cov ntawv luam tawm. Moj av yog qhov lej feem ntawm daim ntawv luam tawm yav dhau los uas muab luam tawm mus rau sab nraum qab ntawm daim ntawv luam, tom qab ntawm daim ntawv luam ntxiv tom qab muaj cwj pwm, thiab hauv daim ntawv sau ua ntej yog nyob rau hauv daim ntawv ntawm piebald. Tom qab-tack yog qhov tshwm sim nyob rau hauv cov khoom luam tawm tau nruj qaum rov qab rau sab nraum qab thaum kev tso kawm.
Cov teeb meem saum toj no tshwm sim los ntawm qhov tseeb tias tus cwj mem yog qhuav heev dhau los tom qab luam ntawv, los yog tus cwj mem tsis tau qhuav los ua kom tsis muaj drying, qhov hnyav evaporation tus nqi tsawg tsawg, thiab qhov hnyav hauv cov ntawv luam tawm ntau heev. Nyob rau hauv cov txheej txheem ntau lawm, tus number case printing thickness tau paug txo, cov ziab khaub ncaws yuav muaj zog, luam ceev yuav qis dua, tus number case zauv tshuab tau zoo tuaj, thiab hnyav nrog high evaporation tus nqi siv tau.
Kev tso lus tsis raug tso cai
Tsis pub tshaj qhov tsis tau txhais hais tias cov xim ntau thiab cov duab tsis raug xa mus rau qhov chaw geometric ntawm qhov substrate. Qhov tseeb tshaj ntawm txhua qhov xim nrig tsis tau raws li cov qauv hauv kev lag luam, uas ua rau muaj kev sib txawv loj ntawm cov ntawv luam tawm thiab qhov tseem ceeb. Cov xwm txheej uas cuam tshuam rau qhov kev tshaj tawm yog cov ntawv tseem ceeb, luam ntawv kev ntsuas kub thiab cov av noo, thiab tshuab luam ntawv ziab tshav kub.
Ntawv
Daim ntawv nws tus kheej muaj qee cov dej, thiab feem ntau cov tshuaj tau li ntawm 6%. Txawm li cas los xij, thaum lub ntsuas sov thiab cov av ntawm qhov chaw Rhiav yeej tsis haum nrog lub ntsuas kub thiab cov av noo thaum lub sij hawm ntawm cov ntawv, cov ya raws hauv daim ntawv hloov mus deform daim ntawv, ua rau tsis muaj tseeb luam yeeb overprint. Hauv no hais txog, daim ntawv yuav muab tso rau hauv qhov kev luam ntawv rhiav ob peb hnub ua ntej thaum luam ntawv, kom daim ntawv zoo tuaj yeem hloov tau qhov kub thiab txias ntawm cov luam ntawv, kom daim ntawv deformation me me thaum luam ntawv, thiab qhov luam ntawv tshaj tawm yuav tsum tau lav.
2. Kev Rhiav kev kub ntxhov thiab cov av noo
Cov Rhiav luam ntawv yuav tsum raug kaw, tswj kev ruaj khov thiab cov av noo kom ntseeg tau tias daim ntawv tsis ua kom poob qab.
3. Luam tshuab tshuab ziab khaub ncaws
Txo qhov kom siab kub ntawm cov xovxwm luam thaum uas kom ntseeg tau tias cov luam ntawv muaj peev xwm ua kom qhuav tawm, yog li ntawd daim ntawv yog deformed nyob rau hauv ib chav me me.
Ntawv wrinkles
Wrinkling ntawm daim ntawv txhais tau hais tias daim ntawv yog ntsws ntsws thiab ntsws vim lub siab thiab cov zoo li thaum lub sijhawm luam ntawv, yog li ntawd cov ntawv luam tawm tau muaj wrinkles thiab cuam tshuam qhov zoo ntawm cov khoom. Lub ntsiab tseem ceeb rau qhov tshwm sim yog tias qhov siab ntawm ob qho tag nrho ntawm cov tub ntxhais ntawm kev ua haujlwm tsis txaus siab, los yog cov tub ntxhais ntawm kev raug siab puas ntsoog. Thaum lub npoo ntawm qhov sib npaug ntawm cov tub ntxhais muaj kev sib raug zoo nrog cov ntawv thaum lub sij hawm hloov, lub zog ntawm ob qho tag nrho ua rau daim ntawv ntsws. Lub siab ntawm ob hnub ntawm qhov kev sib tw rau cov menyuam yuav tsum raug kho thaum luam ntawv. Lub lag luam tshwj xeeb: muaj kev ntsuas siab ntawm lub tshuab luam ntawv, thiab lub siab raug kho raws li lub siab ntsuas cua; siv qhov ntsuas kev ntsuas kom ntsuas seb qhov kev rau siab raug puas ntsoog, thiab yog tias nws raug mob lawm, hloov nws lub sijhawm; xyuas tag nrho Cov ntawv xov xwm nyuab siab rau cov tub kawm ntawv hais tias tag nrho cov ntawv pub rollers nyob hauv txoj hauj lwm tib yam.
Kev thaiv
Kev thaiv cov cuab yeej txhais tau hais tias tus cwj mem nyob hauv kab ntawv luam tawm thaum lub sij hawm luam ntawv yuav raug qee yam qaug ntawm qee yam caws pliav, tus lej number case hloov yuav raug txo, thiab lub hlwb yuav thaiv ntau thiab ntau dua ntiav kom txog thaum kev thaiv cov teeb meem tshwm sim. Tom qab qhov txhaws, cov duab kos tau zoo tsis raug, thiab cov xim ntawm cov khoom luam tawm yog inconsistent thiab tsis tuaj yeem ua me tub kom zoo. Nws tuaj yeem daws qhov teeb meem ntawm kev thaiv ntawm kev luam tawm los ntawm kev txo cov ziab kom ceev ntawm tus cwj mem los yog nce lub ceev ntawm lub tshuab luam ntawv kom phim txoj kev ziab ntawm tus zauv.