Koj puas paub cov teeb meem ntawm flexo preprinting?
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
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Qhov nce hauv flexo dot yeej ib txwm yog qhov laj thawj loj tshaj rau cov neeg ua hauj lwm zoo rau cov neeg ua hauj lwm zoo, vim hais tias muaj ob txoj hauv kev flexo txheej txheem, ib qho yog tus lej ntawm lub npov anilox, thiab lwm qhov yog lub siab . Lub tshuab luam yeeb ntawm cov luam yeeb rau cov menyuam. Vim tias qhov nyuaj ntawm lub phiab flexographic phaj siv ua ntej luam tawm feem ntau ntawm 70 ° Shore, lub phaj yog deformed los ntawm qhov kev ua yuam kev vim los ntawm lub tangent ntawm txhua tus menyuam, thiab cov txiaj ntsim ntawm qhov tshwm sim tau ua tiav yuav tsis tshua muaj. Lub hom phiaj ntawm kev tswj cov nyom thaum ntxov ua rau tus thawj coj tau tswj ntawm ob qhov kev ntxhov siab, yog li ntawd qhov kev luam zoo tau zoo txog tus kheej ntawm tus neeg ua haujlwm. Tus neeg ua haujlwm thiab thawj tus neeg ua haujlwm tau pom zoo ntawm txhua qhov kev sau, yog li qhov zoo ntawm lub flexo yog floating, thiab qhov nce qhov khoom tsis ruaj khov. Vim hais tias cov flexo dot yog tsam, cov xov tooj ntawm cov phaj kab siv rau cov luam ntawv flexo tsis tau ntau tshaj 133lpi ua ntej, thiab qhov tsawg kawg nkaus me me yog 2%. Piv nrog rau 175lpi ntawm gravure thiab offset printing, nws yog obviously tsis txaus ntawm lub ntsiab theem.
Kev lag luam txhaum rau cov khoom flexo zoo
Cov xov tooj ntawm cov ntawv luam tawm tsawg heev, thiab cov theem ntawm cov ntawv luam kev luam ntawv yog loj dhau;
Lub ntsiab lus yuav tsum hloov maj mam hloov mus rau zero tsis muaj lub qhov ncauj nyuaj, thiab lub suab tsaus nti yuav tsum muaj cov txheej txheem qhib tsis tau muab tso rau. Tam sim no, feem ntau ntawm cov flexo luam ntawv nyuaj ua kom tiav;
Offset plaub-xim overprint muaj peev xwm ua tau ntau yam xim, flexo zov qhov muag thiab ob lub overprints, ua luam nqi ntau dhau;
Tus nqi them tus nqi ntau tshaj qhov offset luam ntawv.
Cov nab npawb ntawm cov paib
Cov xov tooj ntawm cov phaj kab yog thawj qhov teeb meem. Muaj ntau ntau txoj hauv kev siv cov yas hlau hauv cov ntawv luam tawm flexo, uas yog ib lub phaj. Qhov ciam ntawm lub phaj rau xoom, uas yog, qhov tsawg kawg nkaus dot inch yog hais txog seb qhov muag liab qab tau pom qhov ncauj tawv. Lub 1% dot inch ntawm 150 lpi yog 19 μm, thiab cov gradient mesh yog qhov txawv ntawm 1% mus rau 0%. Lub 1% dot txoj kab ntawm 175lpi yog 16μm, thiab qhov gradient rau 0% ntawm txoj kab tseem ceeb tsis yooj yim los qhia qhov txawv. Ib qho nruab nrab ntawm qhov nruab nrab ntawm 15 mus rau 16 μm cov ntaub ntawv qhia tau zoo. Yog li, yog tias tus qauv tsim yuav tsum tau qhab nia mus rau 0%, ib tug 150 lpi phaj yuav tsum tau siv nrog ib tus kab meb, thiab qhov ceev ntawm FM xov yog siv los npog ntau qhov nruab nrab. Thaum siv 175lpi phaj, nws tuaj yeem ncaj qha ntawm tus yam ntxwv ntawm AM network. Offset luam ntawv tau ua qhov no rau ib lub sij hawm ntev, thiab txoj kev no yog heev paub tab. Cov cuab yeej hluav taws xob lub phaj uas ncav cuag qhov tsawg kawg nkaus dot yog thawj tsav lub Kodak NX phaj vim qhov square laser aperture uas generates cov dots yog 10 μm. Esko HD tshuab kuj yuav ua tiav, txawm hais tias lub laser yeej siv loj dua, tab sis cov yam ntxwv ntawm cov phaj khoom siv hauv UV tua tau kuj ua rau cov ntawv nruab nrab me me los ntawm kev txhuam ntawm lub phom ntxuav hnyav. Daim ntawv qhia kev lag luam siv ntau tshaj tawm hauv HD, thiab nws tau pov thawj los ua kom zoo los ntawm kev sib ntaus los tiag.
Lwm qhov teeb meem tseem ceeb nrog cov kab ntawv siab yog qhov kev xaiv ntawm anilox rolls. Thaum kuv nyob hauv thawj kab ntawm flexographic luam ntawv, kuv siv qhov kev sib cav ntawm qhov sib piv ntawm cov xov tooj luam thiab cov xov tooj ntawm anilox rolls nyob rau hauv kev lag luam thaum lub sij hawm. Nws tau npaj siab los laij cov kab lus qhib ntawm lub anilox yob raws li qhov tsawg kawg nkaus dot inch ≥ Xaiv ib qho anilox menyuam. Lub tswv yim tseem ceeb ntawm txoj kev no yog kom tsis txhob cog rau hauv cov kab noj hniav ntawm lub cev vim qhov tsawg me me ntawm cov teev. Tus cwj mem xeb xaim ib ncig ntawm lub dot yuav lo rau cov ntawv xov xwm, tshwj xeeb tshaj yog adhered mus rau thaj tsam ntawm non-inking ntawm qhov ob dots, ua rau blockage (los yog hu ua net), ua rau tsis ua haujlwm zoo. Txawm li cas los xij, qhov no yuav ua rau tus naj npawb ntawm anilox rolls, thiab anilox rolls nrog ib lub siab ntawm cov thauv me me muaj kev tsis pom nriav. Tib lub npoj anilox, tus nqi ntawm txoj kab thiab kab tsawg tsawg heev. Nyob rau tib lub sijhawm, tus nqi tsawg tsawg ntawm tus menyuam anilox kuj tuaj yeem tsim kho qhov tsis zoo ntawm cov xim tsis txaus. Vim li no, cov txheej txheem flexo luam feem ntau rov qab ua haujlwm ntawm ob qho tib si ntawm cov xim zoo tib yam los mus kov yeej qhov tsis zoo. Kuv tau siv hom kev xaiv qhov nro ntawm cov ntawv xov xwm kom phim siab nro ntawm tus cwj pwm los daws qhov teeb meem no. Kuv cia siab tias txawm hais tias qhov teeb meem yog qhov ua kom poob rau hauv lub xovtooj, tus number case yuav tsuas yog nyob rau saum toj ntawm cov dot uas yuav tsum tau xa, thiab qhov tsis yog-inking yuav tsis. Raug lim nrog cov cwj mem pliaj. Los yog txawm tias nws yog kab mob, qhov chaw luam tawm ntawm lub phaj ntawv yuav tsum yog nws tus kheej tu nws qhov chaw uas nws yuav tsum tsis txhob muab inked, tsis siv lub phaj. Tus neeg sau cov cuab yeej no siv los ua qhov kev tu yus tus kheej ntawm tus qauv flexographic, uas tau raug tshuaj xyuas nyob rau hauv qhov kev ntsuas ntawm lub tshuab flexo luam tawm.
Dot puab
Qhov teeb meem thib ob yog qhov kev xaiv ntawm cov flexo dot nce curve, hauv txhais tau tias, kev xaiv ntawm cov duab ntawm qhov teeb meem teev. Qhov teeb meem no yog cov kev xav tau ntawm kev ua lag luam rau cov roj hmab kom muag, feem ntau peb yuav tsum tau siv cov flexo raws li cov xeeb ceem zoo ntawm offset printing. Zoo li nws, qhov no tseem ceeb heev. Qhov tseeb, ntev li ob txoj kev siv tau los ua tiav lub voj voos, tsis muaj teeb meem hauv txoj kev xav, tab sis nyob rau hauv cov ntsiab lus ntawm 50% dot, uas yog, nyob ze qhov chaw pib dav, nws yog qhov tshwj xeeb. Nws yog ib qho tsim nyog kom tsis txhob dhia tsis ua hauj lwm los ntawm kev nce ntawm qhov nyuaj, uas yog lub ntsiab lus ntawm "ink ink in", uas yog qhov tseem ceeb nyob ze qhov chaw tseem ceeb uas yuav tsum tau zam.
Grey tshuav nyiaj li cas
Qhov thib peb lo lus nug yog li cas lub flexo controls tus nqi tshev gray thaum lub sij hawm luam ntawv. Yog hais tias nws muaj peev xwm yuav tiav, flexo luam ntawv kuj siv tau cov xim txheej txheem pib rau ntau yam xim xws li offset printing. Nws tuaj yeem xav tias thaum flexo luam ntawv tsis tuaj yeem sau nrog 6-xim, 8-xim lossis txawm tias 10 xim tshuab, ntau npaum li cas cov nqi khoom siv, khoom noj, thiab lwm yam. Tab sis ntev ntev, qhov gray tshuav ntawm flexo luam tawm tsuas yog nyob rau hauv cov xim sib cais ntau ntawm lub phaj ua lub tuam txhab, uas yog ib qho nyuaj kawg ntawm cov tshuab luam ntawv. Vim txhua lub luam ntawv, tus lej siab thiab luam tawm siab ntawm flexo luam tawm yuav hloov, thiab qhov kev nce nqi yuav hloov. Tus qauv tsim thawj C, M, Y, thiab K xim xim yuav yog qhov tsis zoo.
Li ntawd, koj yuav ua tau grey tshuav? Nws yog tib txoj kev los tswj cov tib neeg yam tseem ceeb rau theem qis tshaj los ntawm kev siv cov yam ntxwv ntawm lub tshuab khoom xws li offset printing. Qhov zoo ces, cov khoom siv no tau ua dua sia mus thoob ntiajteb, thiab nws tuaj yeem tsim ua nyob rau hauv Suav teb. Qhov no yog lub hauv ncoo tus qauv ntawm lub tshuab luam ntawv flexographic. Tus neeg sau tau cov txheej txheem no hauv ib tsab xov xwm los xyuas qhov tshiab ntawm flexo labeling ob peb xyoos dhau los. Lub teb chaws txawv teb chaws yog petal, tab sis nws cov tub ntxhais technology yog lub suab tswj ntawm cov iav. Kuv tau muab sau ua ke rau hauv ib lub hauv siab hauv lub hauv ncoo, zoo li lub xub pwg hlau ntawm ib qho kev tshaj tawm, tab sis nws txawv.
Flexo tswj cov nyiaj tshuav ntawm cov txheej txheem luam, thiab qhov tseem ceeb yog los tswj tus kheej ntawm tus cwj mem. Qhov teeb meem no tsis yooj yim rau cov luam ntawv sau luam tawm siv UV hauv phom, tab sis nws yog qhov nyuaj rau cov tuam txhab uas siv siv kuab kuab los yog cov dej hauv lub hauv paus ntev ntev. Rau ib lub sij hawm ntev, txoj kev xav ntawm lub ntiaj teb flexo, cov kua hauv cev yuav tsum siv tsawg viscosity, txwv tsis pub muaj teeb meem hauv kev luam ntawv. Qhov tseeb, qhov kev txiav txim siab ntawm tus lej viscosity yog txiav txim los ntawm cov yam ntxwv ntawm cov inking mechanism. Yog hais tias lub flexo nias inking mechanism yuav ua kom haum dua viscosity inks, xws li flexo UV inks, yog vim li cas thab kom txo cov ink viscosity?
Txoj kev txhim kho, nrhiav kom pom thiab kho ntawm qhov txo qhov nkhaus yuav tsum yog ib qho haujlwm tseem ceeb. Nws yog tsim nyog yuav tau siv qhov txo curve ntawm lub phaj luam tawm ua rau cov kev tsis txaus siab hauv cov ntawv luam tawm.
Combining cov ntsiab lus saum toj no, nws yuav tsis yooj yim kom ua tiav qhov sib tw ntawm grey hauv cov txheej txheem luam ntawv. Raws li qhov no, peb yuav txo qee tus yam ntxwv ntawm tus neeg teb xov tooj hauv kev luam ntawv, yog li ntawd qhov zoo ntawm lub tshuab luam ntawv ntau hom tshuab zoo ib yam, zoo li txo cov nqi flexo luam ntawv.
Tus nqi phaj
Plaub lo lus nug yog yuav ua li cas txo cov flexo luam ntawv. Tau ntev, cov duab ci ximxoo flexo tau monopolized los ntawm cov tuam txhab lag luam loj loj, thiab tus nqi siab tshaj plaws ntawm tus qauv siv hauv Suav tau raug thuam los ntawm kev lag luam. Qhov teeb meem loj no uas tau plagued Tuam Tshoj tus flexo ntiaj teb twb tau loosened nyob rau hauv xyoo tas los. Lub hnub yug ntawm lub flexo thiab kev nce qib, yam tsawg kawg hauv thaj teb ntawm daim ntawv tuab, tus nqi ntawm lub flexo tau raug teeb tsa tau meej heev. Txawm li cas los xij, nyob hauv thaj teb ntawm nyias daim hlau, tshwj xeeb tshaj yog nyob rau hauv thaj av ntawm laser flexography, tus nqi tseem qis heev. Sib piv cov nqi sib txawv ntawm cov qauv thiab cov khoom siv nyias thiab ob yam khoom, yog tias peb sau cov khoom zoo tib yam nrog tus nqi qis dua, peb tsis tau tso siab rau cov nqi txo ntawm cov chaw muag khoom, tab sis peb yuav tsum tswj fate. Nws puas yog hauv koj txhais tes? Nyob hauv thaj chaw ntawm flexo preprinting, tus nqi qis-luag flexo phaj yog siv los ua kom muaj kev txhim kho ntawm tus thawj ntawv zoo, uas yog tsim nyog ntawm peb kev tshawb nrhiav.