5 tus neeg raug mob uas qhia koj siv offset inks
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 khoom ntawv, cov ntawv me, cov ntawv nplaum, tag nrho hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
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Hais txog kev siv tus cwj pwm ntawm tus cwj pwm, tus sau ntawv xav ua kom pom tseeb ntawm kev sib raug zoo ntawm tus lej thiab qhov zoo ntawm cov khoom luam tawm los ntawm cov feem ntau raug mob uas kuv tau ntsib.
Rooj plaub no 1: Txom nyem tus number case dhau heev lawm
Thaum peb lub tuam txhab luam tawm ib pawg ntawm cov hnab tes taw qhia, cov magenta dots ntawm cov tom kawg xim pawg thiab cov cyan teb overlay ntawm yav dhau los cov xim pawg tshwm los ua phem, ua rau muaj ntau me ntsis ntawm cov ntawv luam tawm. Txawm hais tias tus sau tau pheej yig txo cov viscosity ntawm cov ntaub ntawv magenta thiab kev cia siab kom nws cov nqi ntawm overprinting, nws tsis muaj kev pom tseeb. Reluctantly, Kuv yuav tsum rov qab qhov kev txiav txim ntawm ntsuab thiab magenta, thiab qhov teeb meem yog tag daws.
Case study: Lub tshuab ua xim tshuab luam ntawv tiav hauv ib lub sijhawm luv luv. Txoj kev ua tus ntaiv ntawm tus qauv yog qhov ntub thiab ntub. Yog tias qhov luam yeeb xim raws qhov ua tsis raws cai, tus number case tshaj tus nqi yuav raug txo kom tsawg. Yog li, raws li cov yam ntxwv ntawm lub tshuab muaj xim, yuav tsum tau ua raws li cov ntsiab lus nram qab no thaum npaj cov xim luam tawm.
(1) Daim xim xim txheej txheem yog npaj raws li cov ntawv ntawm tus cwjpwm. Cov cwj mem xaj uas luam tawm sab nraud yog luam tawm ua ntej, thiab tus number case uas muaj ntau dua daim ntawv qhia tawm tom qab, uas tuaj yeem txhim kho cov xim zoo tom qab tus ntiv tes ntau dhau.
(2) Txhim kho cov xim txheej txheem raws li qhov chaw ntawm daim txiag phaj. Ntawd yog, cov phaj luam ntawv muaj thaj chaw me me uas muaj xim me me, thiab duab loj loj nrog cov xim loj loj.
(3) Kho cov xim luam tawm raws li cov xim ntawm tus cwj pwm viscosity. Cov cwj mem xaj uas muaj cov viscosity loj yog luam tawm ua ntej, thiab tus number case uas muaj lub viscosity me me luam tawm, thiab tus cwj pwm ntawm tus cwj pwm ntawm cov xim muaj qis dua. Yog hais tias xim xim nrog high viscosity yuav tsum tau muab tso rau hauv cov xim tom ntej no, cov viscosity yuav tsum tau txo thawj nrog cov de-nplaum. Txwv tsis pub, qhov kev tshaj tawm tsis ua haujlwm yuav tshwm sim, uas yog, qhov tshwm sim ntawm tus cwj pwm kua mem tes yuav tshwm sim. Piv txwv li, thaum lub tshuab lub ris gripper hnav thiab cov xim dub muaj qhov ua yuam kev, qhov xim sib lawv liag tau kho, thiab tus cwj mem dub yog teem rau hauv ob, peb lossis plaub xim pawg luam ntawv, tiam sis cov xim ntawm cov xim dub yuav qis qis hauv lub sijhawm.
(4) Txhim kho cov duab xim raws li cov yam ntxwv ntawm daim tseem. Piv txwv, thaum luam cov ntaub ntawv xws li xim sov thiab Caixia, lub cyan yuav tsum tau muab tso rau hauv cov xim dhau los, thiab yuav tsum muab tso rau hauv nraub qaum. Yog hais tias tus qauv xws li glacier thiab daus siab yog luam tawm nyob rau hauv cov xim txias, lub magenta yuav tsum tau muab tso rau. Lub qub xim pab pawg, lub cyan yog teem caij.
Nyob rau hauv cov ntaub ntawv saum toj no, qhov ua rau tsis ua hauj lwm yog tias cyan cwj mem yog nyob rau hauv av, tus number case yog tuab, thiab tus cwj mementa magenta yog lub teeb ci, thiab tus number case yog nyias. Thaum muab tus cwj mem kua luam tawm los ntawm cov ntub dej thiab cov cyan plua plav txheej, cov lej yog muaj tseeb. Qhov tshwm sim ntawm cov neeg pluag overprinting, cov ntawv luam tawm yog vain, irregularly enlarged, thiab txawm tshwm sim tau streaked, heev tsis ncaj ncees. Thaum twg cov xim sib lawv liag, qhov kev txhaum no raug tshem tawm.
Case 2: Tshaj tawm ntawm qhov teeb meem ntawm kev sib taum ntawm tus cwj mem ntawm daim ntawv
Thaum ib lub tshuab luam ntawv tag nrho cov nqaij nyug sau nqaij ntawm cov nqaij nyug sau ntawv (daim ntawv yog 80g / m2 single-coated coated paper), nws ib txwm overprinted, thiab cov plaub pim pawg pam tas li nyam thiab peeled. Ntev ntau xav tias hniav lwj, rov tu thiab lubrication ntawm cov hniav lwj, tseem tsis tau daws. Tom qab tus neeg sau ntawv tau tshawb xyuas, xub thawj tshem tawm cov xim dub, magenta, thiab daj hauv nrog tus neeg ua haujlwm de-adhesive, thiab txo qhov kev nyuaj siab ntawm txhua pawg xim ntau li ntau tau, thiab teeb meem.
Cov ntaub ntawv kawm: Rau txhua yam loj-loj prints, cov viscosity thiab printing ntawm tus cwj mem xaj yuav tsum tsis txhob loj dhau. Txwv tsis pub, yog tias daim ntawv nyias nyias, daim ntawv yuav tsis yooj yim los mus kov yeej ntau tshaj tawm kev sib tw, ua rau tsis muaj tseeb thiab ntawv curling. Txawm tias cov hniav lwj tsis tuaj yeem tev daim ntawv los ntawm daim pam mus ua tiav qhov qub tes, kom daim ntawv tsis tu ncua thiab tev. Thaum tus neeg sau ntawv siv kev ntsuas los ntxiv tus neeg ua haujlwm de-adhesive thiab txo cov kev luam ntawv siab, lub siab tawv ntawm daim khawm ntawm daim ntawv zoo heev txo, thiab cov khoom ua tau tuaj yeem ua tau zoo li niaj zaus.
Rooj plaub no 3: Tus cwj pwm ntawm tus cwj pwm ntawm xim muaj xim dub
Muaj plaub daim xim tshuav nyiaj tso cai, thiab lub ntsiab xim ntawm daim npav npog yog tshaj tawm los ntawm 100% medium daj thiab magenta. Thaum tus neeg muas zaub kos npe rau ntawm lub tshuab, nws pom tau tias liab xim yog me ntsis ib tsos tsaus dua li kub liab thiab ci ntsa iab, uas nyob deb ntawm kev luam ntawv. Nyob rau hauv lub ntsej muag ntawm qhov teeb meem, tus sau yog heev txaj muag, vim hais tias yog hais tias koj re-phaj, lub sij hawm yog lig dhau lawm, thiab yuav ua rau kom tus nqi, yog li koj tsuas siv tau lub hlwb xim.
Tom qab ntawd, raws li cov cai hloov ntawm cov zauv xim, tus neeg sau tau txiav txim siab hloov qhov nruab nrab daj siv hauv plaub-xim cuav rau lub teeb daj thiab lub magenta kom loj liab. Thaum thawj tus qauv sau tawm, peb pom tias lub ntsiab xim ntawm daim npav ntawm daim ntawv muaj tag nrho mus txog qhov kub nyhuv kub, xim zoo nkauj heev, thiab tus neeg tau txaus siab heev.
Case study: Nws yog ib qho tsis ntseeg tias feem ntau siv peb hom colour inks, ntau qhov sib txawv ntawm cov inks yuav muaj qee yam txawv ntawm qhov tseem ceeb xws li nqi thiab nqi, xws li reddish daj, reddish magenta, thiab reddish blue. Cov xim uas muaj tshaj, xim liab los yog ntsuab, muaj xim tsawg dua thiab ntau dua grayscale. Lub sijhawm no, peb yuav tsum txheeb xyuas qhov tseemceeb, khaws cov xim tseemceeb, xaiv tus cwjpwm uas zoo tshaj plaws, thiab luam tau qhov zoo tshaj plaws.
Tom qab ntawd, raws li qhov kev ua tau zoo no, tus sau tau siv ntau hom xim daj thiab xim xiav xiav los sau tus xim ntsuab kuj, uas ua rau tus neeg mob siab txaus siab heev. Hom no muaj peev xwm kho qee qhov teeb meem ntawm cov teeb meem hauv cov phaj thiab ua tiav kev xav tau. Cov kev ntsuas zoo li no yog qhov yooj yim thiab yooj yim, thiab tsis tas yuav ntxiv cov nqi.
Case 4: "Ghosts" tshwm sim ntawm tus lej
Hauv ib lub sijhawm, lub tshuab luam tawm ib lub hnab rau tus menyuam phau ntawv. Lub qhov ncauj ntawm daim ntawv yog ib qho qauv ntawm cov ntoo me, thiab qhov taub ntawm cov ntawv luam tawm yog ib qho qauv loj heev. Thaum lub sij hawm luam ntawv, nws tau pom tias muaj ib tug "dab" ntawm nplooj me me nyob rau hauv lub qauv qauv ntawm lub hau ntawm lub qhov ncauj. Thaum xub thawj peb xav hais tias muaj teeb meem nrog txoj hlua ntawm cyan pawg. Ua ntej, lub siab ntawm dej thiab tus lej khov ntawm cov xim pawg tau hloov dua tshiab raws li tus txheej txheem. Yog li ntawd, tus "dab ntxoov ntxoo nkauj" tseem muaj nyob. Yog li, peb rov kho tus cwj pwm tsis zoo ntawm cov pab pawg neeg daj, thiab qhov tshwm sim tseem tsis zoo. Tom qab ua tib zoo xav, tus sau cia tias nws yog tshwm sim los ntawm tus lej, yog li ntawd nws tau ntxiv 3% tus neeg ua hauj lwm deev rau tus npuas daj, thiab tom qab ntawd pib lub luam ntawv, "Ntsuj Plig" tau tawm tam sim ntawd.
Case Study: Peb paub hais tias lub ntsiab tseem ceeb ntawm kev tsim "ghosts" yog qhov tsim tsis zoo ntawm cov khoom luam tawm thiab tsis muaj mob xiam oob qhab. Hauv qhov no, tsis muaj qhov teeb meem zoo li no. Raws li kev luam cov xim sib lawv liag, tus cwj mem daj muaj lub siab tshaj plaws thiab qhov qis tshaj plaws, thiab nws yog qhov tseeb kom muab tso rau hauv lub xeem xim pab pawg. Thiab peb siv cov tub ntxhais kawm ntawv qib siab zoo rau siab, npaj txhij siv, tsis tas yuav tau ntxiv cov kev pabcuam ntxiv. Vim li cas koj tau ua "ghosts" lub sijhawm no?
Thawj coj, vim muaj qhov sib txawv ntawm qhov sib txawv ntawm thaj tsam ntawm cov ntawv luam plaub-xim luam ntawv, kev noj cov xiav kua xaj yog me me, tus number case nyob rau hauv cov menyuam rubber tsis muaj zog, thiab tus number case yog eroded thiab emulsified los ntawm dampening tov, thiab viscosity ntawm tus number case yog zoo heev txo; Cov cwj mem kua daj yog loj heev, thiab nws tuaj yeem ua tiav nrog tus cwj mem tshiab, thiab cov ink viscosity tsis hloov ntau ntau. Thaum lub tshuab ntaus xov tooj, daim npuag daj yuav lo cov xim ntsuab ntawm daim npog rau ntawm qhov kev txiav txim siab ntawm kev luam ntawv siab ua ib qho yooj yim dua overprint, thiab ces hloov los ntawm cov pab pawg neeg daj los ntawm cov phaj tus menyuam, ntawm qhov ntxeev ntawm cov ntawv luam tawm khoom. Nyob rau hauv lub kua qauv, muaj ib tug "dab" ntawm nplooj me me. Uas yog hais, lub viscosity ntawm ob paug ntawm cyan thiab daj yog raug kaw, uas ua rau lub cim ntawm "dab ntxoov ntxoo". Thaum tus sau ntawv ntxiv tus neeg sawv cev ntxiv rau tus cwj mem daj, lub viscosity ntawm tus npiv daj daj dauv ntau heev, thiab "tus duab ntxoov ntxoo" yog qhov muab tshem tawm.
Rooj plaub no 5: Hloov qau mis hloov, luam tawm zuaj xim yog lub teeb
Qhov ua rau ntawm tus cwj pwm ntawm cov ntawv luam tawm yog: (1) lub xauv npo tsawg heev; (2) tus lej feem ntau yog emulsified, tsim cov roj-hauv-dej, yog li ntawd cov ntawv luam yuav ntiav; (3) lub siab ntawm cov yas rubber yog tsis sib txig, los yog kua nplaum Crystallization ntawm qhov npoo ntawm cov quav ua rau tus cwj mem tsis ua txhua zaus; (4) Lub plhaub zuag ntawm cov ntawv phaj tseem tsis zoo, los yog cov ntawv xov xwm luam tawm hauv cov txheej txheem luam ntawv vim hnav thiab rhuav, kom tus lej xim yog qhov kaj; (5) Cov pam pwm ntawv hmoov, hmoov, thiab lwm yam.
Rau cov teeb meem saum toj no, peb muaj ib txoj kev los daws lawv sai sai, tab sis muaj qee qhov tshwj xeeb uas yuav tsum tau ceev faj thiab ua siab ntev. Thaum tus thawj coj ntawm plaub lub taub hau ntawm peb lub lag luam luam tawm ib phau ntawv, nws pom tau hais tias cov zauv xim ntawm cov ntawv luam tawm tau teeb pom kev zoo, thiab txawm tias cov pa ntsuas xws li kev txo dej tsawg thiab nce tus nqi ntawm cov xoom xoom tau siv , nws yuav tsis pab. Thaum tus tus nom tau pom qhov teeb meem rau tus neeg sau ntawv, tus neeg sau tau mus rau tom tsev kawm ntawv kom pom thiab pom tias muaj ntau tus lej ntawm lub rubber roller. Ntev li ntev tau siv lub tshuab me me, tus naj npawb yuav tau hnov thaum tus number case yog sib cais ntawm cov roj hmab cov menyuam. Nws qhia tau hais tias lub xauv npo ntawm tus cwj pwm yog siab heev, thiab tus sau ntawv maj mam txav cov nplaim rubber nrog nws txhais tes, uas zoo li yuav kub me ntsis. Nyob rau ntawm lub sij hawm no, tus neeg sau tau to taub txog ntau yam, vim yog, qhov kub ntawm cov roj hmab ntawm cov roj hmab yog siab dhau.
Case study: Qhov teeb meem no tsis yog tshwm sim los ntawm ntau tus emulsification ntawm tus number case, tab sis vim tias qhov kub ntawm qhov Rhiav kev siab ntau, thiab lub tshuab ceev ceev heev, qhov kub ntawm lub tshuab nws tus kheej nce sai. Nyob rau tej qhov chaw siab kub, qhov ntsuas ntawm cov organic hnyav hauv tus cwj pwm Accelerate, xwv kom tus cwj pwm yuav qhuav thiab tuab ntawm cov roj hmab rau cov menyuam, thiab cov dej tsis zoo tuaj; tib lub sij hawm, cov xim qhuav thiab tuab ntawm cov quav yuav ua rau cov kev sib txhuam ntawm cov rubber rubers tsis tu ncua, kom qhov kub ntawm cov roj hmab ntawm cov ris tsho coj mus ntxiv. Nqe Lus Nug: Hauv qhov no, yuav ua li cas muab tus number case rau txhua zaus? Cas nws yuav haum rau kev kub ceev printing?
Hauv no hais txog, nws yuav tsum tau ua raws li cov lus hauv qab no:
(1) tu tus number case nyob rau hauv cov menyuam rubber thaum uas maj mam txo qhov ntsuas kub;
(2) Tswj kev ceev ceev kom tiv thaiv tau qhov kub ntawm lub tshuab luam ntawv nws tus kheej los ntawm kev siab dhau;
(3) Txwv kom txo tau qhov ntsuas kub ntawm lub cawv ciav dej kom sai sai los ntawm lub npoo ntawm lub plhaub kheej kheej tawm, uas yog txo qhov kub ntawm lub tshuab luam ntawv;
(4) Ntxiv qus 6 # vijtsam rau tus cwj mem xwv kom muaj zog ntawm tus cwj pwm ploj thiab tiv thaiv tus cwj mem tawm ntawm ziab sai dhau ntawm cov ris tsho rubber;
(5) Tig kom txhim kho lub siab ntawm tus cwj mem rov qab los tiv thaiv cov roj hmab ntawm cov cua kub tuaj dhau ntawm siab vim ntau qhov siab.
Los ntawm qhov kev siv ntawm cov kev ntsuas saum toj no, qhov kub ntawm cov roj hmab ntawm cov tub ntxhais hluas raug txo qis, thiab cov xim ntawm cov khoom luam tawm tau dua ib zaug thiab tag nrho.