Cov kua luam ntawv gravure qhuav thaum ib tus siv txoj kev siv lub cev, uas yog, los ntawm kev ua kom cov kuab tshuaj yaj, thiab cov kua ntawm ob yam khoom los ntawm kev kho tshuaj.
Gravure Printing yog dab tsi
Cov kua luam ntawv gravure qhuav thaum ib tus siv txoj kev siv lub cev, uas yog, los ntawm kev ua kom cov kuab tshuaj yaj, thiab cov kua ntawm ob yam khoom los ntawm kev kho tshuaj.
Dab tsi yog qhov zoo thiab qhov tsis zoo ntawm gravure printing?
Kev luam ntawv zoo
Tus nqi ntawm cov kua siv hauv kev luam ntawv gravure yog loj, cov duab thiab cov ntawv muaj qhov zoo li convex, thiab cov khaubncaws sab nraud povtseg yog nplua nuj, cov kab yog meej, thiab qhov zoo yog siab. Feem ntau ntawm kev luam ntawv ntawm cov phau ntawv, cov ntawv xov xwm, cov duab, ntim khoom thiab kho kom zoo nkauj yog gravure luam ntawv.
Kev luam ntawv ntau heev
Lub voj voog ua phaj ntawm kev luam ntawv gravure yog ntev, qhov ua tau zoo yog qis, thiab tus nqi yog siab. Txawm li cas los xij, lub phaj luam ntawv yog ruaj khov, yog li nws yog qhov tsim nyog rau kev luam ntawv loj. Qhov loj dua qhov ntau, qhov ntau dua qhov txiaj ntsig, thiab rau kev luam ntawv nrog cov khoom me me, qhov txiaj ntsig qis dua. Yog li ntawd, txoj kev gravure tsis haum rau kev luam ntawv ntawm cov khoom me me ntawm cov cim lag luam.
(1) Qhov Zoo: cov kua mem yog li 90%, thiab cov xim nplua nuj. Muaj zog xim rov ua dua tshiab. Muaj zog tiv taus qhov teeb tsa. Tus lej ntawm cov ntawv luam tawm yog loj heev. Daim ntawv thov ntawm ntau yam ntawv, tsis suav nrog cov ntaub ntawv ntawv kuj tseem tuaj yeem luam tawm.
(2) Qhov tsis zoo: cov nqi ua phaj kim heev, cov nqi luam ntawv kuj kim heev, kev ua phaj nyuaj dua, thiab cov ntawv luam tawm me me tsis haum.
Cov khoom siv hauv qab
Gravure siv tau rau ntau yam khoom siv, tab sis feem ntau nws siv los luam cov ntawv zoo thiab yas zaj duab xis.
Cov tsos ntawm cov ntawv luam tawm: Qhov kev teeb tsa yog huv si, sib xws, thiab tsis muaj cov cim av pom tseeb. Cov duab thiab cov ntawv tau muab tso rau qhov chaw raug. Cov xim ntawm lub phaj luam ntawv yeej zoo ib yam, qhov yuam kev loj ntawm kev luam ntawv zoo tsis pub ntau tshaj 0.5 hli, kev luam ntawv dav dav tsis pub ntau tshaj 1.0 hli, thiab qhov yuam kev luam ntawv dhau ntawm sab pem hauv ntej thiab sab nraub qaum tsis pub ntau tshaj 1.0 hli.
Cov Lus Nug Feem Ntau
Qhov ua tsis tiav hauv kev luam ntawv gravure feem ntau yog tshwm sim los ntawm cov phaj luam ntawv, cov kua mem, cov khoom siv, cov squeegists, thiab lwm yam.
(1) Cov xim ntawm tus cwj mem yog lub teeb thiab tsis sib npaug
Cov xim number case hloov pauv tas li ntawm cov ntawv luam tawm. Cov txheej txheem tshem tawm suav nrog: kho qhov puag ncig ntawm lub phaj dov, kho lub kaum sab xis thiab lub siab ntawm lub squeegee lossis hloov nws nrog ib qho tshiab.
(ii) Lub cim luam tawm yog mushy thiab plaub hau
Daim duab ntawm cov khoom luam tawm yog qib thiab pasty, thiab ntug ntawm daim duab thiab cov ntawv zoo li burrs. Cov txheej txheem ntawm kev tshem tawm yog: tshem tawm cov hluav taws xob static ntawm qhov chaw ntawm lub substrate, ntxiv cov kuab tshuaj polar rau hauv cov kua mem, nce qhov siab ntawm kev luam ntawv kom haum, kho qhov chaw ntawm squeegee, thiab lwm yam.
3) Qhov xwm txheej uas cov kua nplaum thaiv qhuav hauv qhov mesh ntawm lub phaj luam ntawv, lossis qhov mesh ntawm lub phaj luam ntawv puv nrog cov plaub hau ntawv thiab hmoov ntawv, hu ua thaiv lub phaj. Cov txheej txheem tshem tawm yog: nce cov ntsiab lus ntawm cov kuab tshuaj hauv cov kua nplaum, txo qhov ceev ntawm cov kua nplaum qhuav, thiab luam ntawv nrog ntawv nrog lub zog siab.
4) Cov kua mem uas nchuav thiab muaj cov xim av ntawm qhov chaw luam tawm. Cov txheej txheem tshem tawm yog: ntxiv roj kua mem tawv kom txhim kho qhov viscosity ntawm cov kua mem. Kho lub kaum sab xis ntawm lub squeegee, ua kom qhov ceev ntawm kev luam ntawv nce ntxiv, hloov lub phaj luam ntawv mesh tob nrog lub phaj luam ntawv mesh ntiav, thiab lwm yam.
5) Cov cim khawb: Cov cim ntawm cov squeegee ntawm cov ntawv luam tawm. Cov txheej txheem tshem tawm suav nrog kev luam ntawv nrog cov kua mem huv yam tsis muaj cov khoom txawv teb chaws nkag mus. Kho qhov viscosity, qhuav, thiab lo rau ntawm cov kua mem. Siv cov squeegee zoo los kho lub kaum sab xis ntawm cov squeegee thiab lub phaj.
6) Cov xim los nag
Qhov xwm txheej ntawm kev ua kom cov xim ntawm daim ntawv luam tawm sib dua. Cov txheej txheem tshem tawm yog: luam ntawv nrog cov kua mem uas muaj kev sib kis zoo thiab kev ua haujlwm ruaj khov. Cov tshuaj tiv thaiv kev sib sau ua ke thiab cov tshuaj tiv thaiv nag lossis daus ntxiv rau hauv cov kua mem. Dov kom zoo thiab do cov kua mem hauv lub tank kua mem ntau zaus.
(7) Qhov tshwm sim ntawm cov xim kua mem ntawm cov ntawv luam tawm nplaum. Cov txheej txheem tshem tawm yog: xaiv cov ntawv luam tawm kua mem nrog qhov ceev ceev volatilization, nce qhov kub kom qhuav lossis txo qhov ceev ntawm kev luam ntawv kom raug.
(8) Kev poob kua mem
Cov kua mem uas luam tawm rau ntawm daim yas yas tsis nplaum zoo thiab raug txhuam los ntawm tes lossis siv zog. Cov txheej txheem tshem tawm yog: tiv thaiv cov yas yas kom tsis txhob ntub, xaiv cov kua mem uas muaj kev sib raug zoo nrog cov yas yas, rov ua kom daim yas yas zoo li qub, thiab txhim kho qhov nro ntawm qhov chaw.
Cov qauv kev loj hlob
Vim yog kev tiv thaiv ib puag ncig thiab kev noj qab haus huv, zaub mov, tshuaj, luam yeeb, cawv thiab lwm yam lag luam them sai dua rau kev tiv thaiv ib puag ncig ntawm cov ntaub ntawv ntim khoom thiab cov txheej txheem luam ntawv, thiab cov tuam txhab luam ntawv gravure them sai dua rau ib puag ncig ntawm kev luam ntawv. Cov kua mem thiab cov varnishes uas zoo rau ib puag ncig yuav nrov dua, cov kab ke squeegee kaw thiab cov khoom siv hloov pauv sai yuav nrov dua, thiab cov tshuab gravure hloov kho rau cov kua mem dej yuav siv dav.
Lub sijhawm tshaj tawm: Tsib Hlis-22-2023
