Kua gravure luam ntawv number case dries thaum ib tug siv lub cev txoj kev, uas yog, los ntawm evaporation ntawm cov kuab tshuaj, thiab inks ntawm ob yam khoom los ntawm tshuaj kho.
Gravure Printing yog dab tsi
Kua gravure luam ntawv number case dries thaum ib tug siv lub cev txoj kev, uas yog, los ntawm evaporation ntawm cov kuab tshuaj, thiab inks ntawm ob yam khoom los ntawm tshuaj kho.
Dab tsi yog qhov zoo thiab qhov tsis zoo ntawm gravure printing.
High printing zoo
Tus naj npawb ntawm cov cwj mem siv hauv gravure luam ntawv yog loj, cov duab thiab cov ntawv muaj qhov zoo li convex, thiab cov khaubncaws sab nraud povtseg yog nplua nuj, cov kab yog qhov tseeb, thiab qhov zoo yog siab. Feem ntau ntawm cov luam ntawv ntawm cov phau ntawv, periodicals, pictorials, ntim thiab kho kom zoo nkauj yog gravure printing
High ntim luam ntawv
Lub phaj ua lub voj voog ntawm gravure luam ntawv yog qhov ntev, kev ua haujlwm tsawg, thiab tus nqi siab. Txawm li cas los xij, lub phaj luam ntawv yog ruaj khov, yog li nws tsim nyog rau kev luam ntawv loj. Qhov loj dua cov batch, 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 lag luam me me.
(1) Qhov zoo: tus cwj mem qhia txog 90%, thiab xim yog nplua nuj. Muaj zog xim luam tawm. Muaj zog layout kuj. Tus naj npawb ntawm prints yog loj. Daim ntawv thov ntawm ntau yam ntaub ntawv, uas tsis yog cov ntaub ntawv ntawm cov ntaub ntawv tuaj yeem luam tawm.
(2) Qhov tsis zoo: phaj ua cov nqi kim, cov nqi luam ntawv kuj tseem kim, phaj ua haujlwm nyuaj dua, thiab cov ntawv luam me me tsis haum.
Substrates
Gravure tuaj yeem siv ntau yam khoom siv, tab sis nws feem ntau yog siv los luam cov ntawv qib siab thiab yas zaj duab xis.
Qhov tshwm sim ntawm cov ntawv luam tawm: Cov txheej txheem yog huv si, zoo ib yam, thiab tsis muaj qhov pom tseeb ntawm cov av. Cov duab thiab cov ntawv tau raug muab tso rau. Cov xim ntawm cov ntawv luam ntawv yog qhov zoo ib yam, qhov yuam kev loj ntawm kev luam ntawv zoo tsis ntau tshaj 0.5mm, kev luam ntawv dav dav tsis ntau tshaj 1.0mm, thiab qhov yuam kev overprinting ntawm sab pem hauv ntej thiab nraub qaum tsis ntau tshaj 1.0mm.
FAQ
Kev ua tsis tiav hauv gravure luam ntawv feem ntau yog los ntawm cov ntawv luam ntawv, inks, substrates, squeegists, thiab lwm yam.
(1) Cov xim number case yog lub teeb thiab tsis sib xws
Kev hloov xim ntawm tus cwj mem ib ntus tshwm sim ntawm cov ntawv luam tawm. Cov txheej txheem tshem tawm muaj xws li: kho lub roundness ntawm lub phaj roller, kho lub kaum sab xis thiab siab ntawm lub squeegee los yog hloov nws nrog ib tug tshiab.
(ii) Lub imprint yog mushy thiab plaub hau
Cov duab ntawm cov ntawv 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 zoo li qub rau ntawm qhov chaw ntawm lub substrate, ntxiv cov polar solvents rau tus number case, tsim nyog nce lub siab, kho txoj hauj lwm ntawm lub squeegee, thiab lwm yam.
3) Qhov tshwm sim uas thaiv cov number case dries nyob rau hauv lub mesh kab noj hniav ntawm lub phaj luam ntawv, los yog lub mesh kab noj hniav ntawm lub phaj luam ntawv yog sau nrog ntawv plaub hau thiab ntawv hmoov, yog hu ua thaiv lub phaj. Cov txheej txheem ntawm kev tshem tawm yog: nce cov ntsiab lus ntawm cov kuab tshuaj nyob rau hauv tus number case, txo qhov ceev ntawm number case kom qhuav, thiab luam ntawv nrog ntawv nrog lub zog saum npoo.
4) Ink spillage thiab spotting ntawm thaj tsam ntawm cov ntawv luam tawm. Cov txheej txheem ntawm kev tshem tawm yog: ntxiv cov roj tawv tawv los txhim kho cov viscosity ntawm tus number case. Kho lub kaum sab xis ntawm lub squeegee, ua kom cov luam ntawv ceev, hloov lub sib sib zog nqus mesh luam ntawv phaj nrog ib tug ntiav mesh luam ntawv phaj, thiab lwm yam.
5) Scratch marks: Cov cim squeegee ntawm cov ntawv luam tawm. Txoj kev tshem tawm muaj xws li luam ntawv nrog cov inks huv yam tsis muaj teeb meem txawv teb chaws nkag. Kho cov viscosity, dryness, adhesion ntawm number case. Siv lub squeegee zoo los kho lub kaum sab xis ntawm lub squeegee thiab phaj.
6) Pigment nag lossis daus
Lub phenomenon ntawm lightening xim ntawm lub luam. Cov txheej txheem ntawm kev tshem tawm yog: luam ntawv nrog inks nrog zoo dispersion thiab ruaj khov. Anti-agglomeration thiab anti- nag lossis daus additives yog ntxiv rau tus number case. Dov zoo thiab do cov number case nyob rau hauv lub tank ntau zaus.
(7) Qhov tshwm sim ntawm tus cwj mem stains ntawm cov ntawv nplaum nplaum. Cov txheej txheem ntawm kev tshem tawm yog: xaiv tus number case luam ntawv nrog ceev ceev volatilization ceev, ua kom qhuav kub los yog tsim nyog txo cov luam ntawv ceev.
(8) Ink shedding
Cov cwj mem luam tawm ntawm cov yas zaj duab xis muaj qhov adhesion tsis zoo thiab raug rub tawm ntawm tes los yog lub zog siv tshuab. Cov txheej txheem ntawm kev tshem tawm yog: tiv thaiv cov yas zaj duab xis los ntawm ya raws, xaiv tus number case printing nrog zoo affinity nrog cov yas zaj duab xis, re-surface cov yas zaj duab xis, thiab txhim kho cov nto nro.
Txoj kev loj hlob
Vim muaj kev tiv thaiv ib puag ncig thiab kev noj qab haus huv, zaub mov, tshuaj, luam yeeb, cawv thiab lwm yam lag luam tau them nyiaj ntau dua rau kev tiv thaiv ib puag ncig ntawm cov ntaub ntawv ntim khoom thiab cov txheej txheem luam ntawv, thiab gravure printing tuam txhab tau them nyiaj ntau dua rau ib puag ncig ntawm kev lag luam luam ntawv. Ib puag ncig tus phooj ywg inks thiab varnishes yuav dhau los ua neeg nyiam, kaw cov tshuab kaw lus thiab cov cuab yeej hloov pauv ceev yuav tau nrov, thiab gravure presses yoog rau cov dej raws li cov inks yuav tau siv dav.
Post lub sij hawm: May-22-2023
