Offset Printing Phaj Ua Thiab Nws Cov Txheej Txheem Tswj Kev Ceev faj

Offset luam ntawv phaj ua thiab nws cov txheej txheem tswj kev ceev faj

Niaj hnub no kev lag luam luam ntawv tau dhau los ua kev sib tw, thiab offset luam ntawv thev naus laus zis tau dhau los ua neeg paub tab. Txhawm rau txhim kho cov khoom lag luam zoo, feem ntau yuav tsum pib nrog cov ntsiab lus luam ntawv, thiab xav txog nws cov khoom siv thiab cov txheej txheem thev naus laus zis meticulously thiab thinkfully. Offset luam ntawv muaj cov yam ntxwv ntawm kev luam ntawv tsis tshua muaj siab, me me luam ntawv deformation tus nqi, cov txiaj ntsig zoo qub qub, cov xim mos mos, cov duab meej meej, cov khaubncaws sab nraud povtseg, luam ntawv ceev thiab tsawg dua, yog li nws tau siv dav hauv kev luam ntawv ntawm ntau yam khoom, tshwj xeeb tshaj yog haum rau luam ntawv xim sau npe. Kev hloov pauv dot version, kab, cov ntawv me me, thiab lwm yam Tam sim no, raws li kuv lub xyoo dhau los ntawm kev ua haujlwm, kuv yuav tham nrog kuv cov npoj yaig hauv kev lag luam ntawm kev tswj hwm ntawm offset printing txheej txheem technology.

1. Tsim phaj ua cov txheej txheem thev naus laus zis tswj

1. Lub tshuab luam ntawv yuav tsum tsis txhob muaj cov cim me me, kab thiab cov dots hloov pauv nyob rau hauv tib xim version, yog li kom tsis txhob muaj qhov tshwm sim ntawm smearing, dot expansion lossis number case tsis txaus vim tsis muaj peev xwm coj mus rau hauv tus account siab thiab number case ntim, uas yuav cuam tshuam cov khoom zoo.

2. Yog hais tias muaj ib qho overprint ntawm cov ntawv luam ntawv, lub overprint ntug ntawm ib qho ntawm cov phaj yuav tsum tau nthuav dav thiab cog lus kom kov yeej qhov tshwm sim ntawm "whitening" ntawm ntug uas tshwm sim los ntawm qhov tsis raug overprinting.

3. Thaum luam ntawv nrog plaub xim, xyuam xim rau lub kaum sab xis ntawm lub network cable thaum ua lub phaj thiab tso tawm cov yeeb yaj kiab. Raws li ib txwm muaj, lub kaum sab xis ntawm lub vijtsam cable yog Y90 degree, M45 degree, C75 degree, K15 degree, thiab lub vijtsam cable kaum ntawm lub ntsiab xim yog feem ntau 45 degree.

2. Txheej txheem thev naus laus zis tswj hauv kev luam ntawv

1. Kev tswj kub thiab av noo ntawm qhov chaw luam ntawv.

Kev tswj qhov kub thiab av noo ntawm lub rhiav kev tsim khoom yog ib feem tseem ceeb ntawm kev txhim kho qhov tseeb overprinting ntawm cov khoom. Qhov kub thiab av noo ntawm qhov chaw ua haujlwm offset luam ntawv yuav tsum muaj qhov sib npaug thiab qhov kub yuav tsum tau khaws cia ntawm 20 txog 25 degree, thiab cov av noo yuav tsum tau khaws cia ntawm 50 feem pua ​​​​thiab 60 feem pua.

2. Tsim nyog xaiv offset PS version. PS phaj plays lub luag haujlwm tseem ceeb hauv kev luam ntawv offset. Nws yog tsim los ntawm photosensitive txheej thiab phaj puag. Lub thickness feem ntau yog 0.15 ~ 0.3mm. Nws yuav tsum tau hais tias cov txheej txheej txheej txheej txheej yuav tsum muaj lipophilicity zoo thiab cov phaj hauv paus yuav tsum muaj hydrophilicity zoo. PS version yuav tsum ua kom tau raws li cov yam ntxwv ntawm cov qauv tiaj tus, cov tuab tuab, ruaj khov, tsis yooj yim rau deform, huv si, txo qhov zoo, siab luam ntawv durability, zoo number case thaum luam ntawv, thiab tsis yooj yim kom tau qias neeg.

3. Tsim nyog xaiv daim pam. Raws li qhov nruab nrab rau kev hloov pauv hloov pauv, daim pam muaj qhov cuam tshuam zoo ntawm cov khoom lag luam offset. Kev xaiv kom raug ntawm daim pam ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov khoom zoo. Lub pam yog tsim los ntawm hluavtaws roj hmab thiab textile ntaub, thiab cov ntaub ntawv textile txheej feem ntau yog ua los ntawm laminating 3 mus rau 4 txheej ntawm ntaub rau cov hluavtaws roj hmab. Kev xaiv ntawm daim pam yuav tsum yog raws li cov hauv paus ntsiab lus ntawm cov tsos zoo, siab flatness, zoo elasticity, zoo number case hloov, me compression deformation, siab tensile lub zog, me elongation, thiab zoo nto roj hmab zog. Tsis tas li ntawd, ntau hom pam yuav tsum raug xaiv raws li cov ntaub ntawv luam ntawv sib txawv, inks thiab graphics.

4. Kev tswj ntawm offset printing number case tshuav nyiaj li cas. Muaj ntau yam uas cuam tshuam rau qhov sib npaug ntawm tus number case thiab dej hauv offset printing, nrog rau cov thickness ntawm cov imprinted number case txheej, cov khoom ntawm cov ntawv luam ntawv, kev ua tau zoo ntawm tus number case, qhov kub thiab av noo ntawm lub rhiav, thiab cov kav dej. . Ntawm lawv, cov yam ntxwv ntawm cov dej ciav dej muaj kev cuam tshuam zoo, tshwj xeeb tshaj yog tus nqi pH thiab kev ua haujlwm ntawm cov ciav dej ncaj qha cuam tshuam rau qhov zoo ntawm cov ntawv luam ntawv, qhov ziab ceev ntawm tus number case, thiab qhov cuam tshuam ntawm lub ntsej muag. Nyob rau hauv ib txwm muaj xwm txheej, qhov conductivity ntawm tus ciav dej yuav tsum nyob nruab nrab ntawm 800 ~ 1200μΩ / cm, nyiam dua ntawm 800 ~ 900μΩ / cm, yog tias nws siab tshaj 1200μΩ / cm, emulsification ntawm tus number case yuav aggravated. , ua rau pom qhov muag plooj; Yog tias nws qis dua 800μΩ / cm, nws yuav ua rau lub phaj qhuav thiab ua rau qhov khoob ntawm cov khoom luam tawm qias neeg. Tus nqi pH ntawm cov ciav dej yuav tsum khaws cia ntawm 4.5 thiab 5.5, thaum cov dots yog qhov tseeb tshaj plaws. Yog tias nws qis dua 4.0, nws yooj yim rau poob, thiab yog tias nws siab tshaj 5.5, nws yooj yim rau paste. Yog li ntawd, txhawm rau tswj qhov sib npaug ntawm tus number case thiab dej, nws yog ib qho tsim nyog yuav tsum tau siv qhov tsawg tshaj plaws ntawm cov kav dej tso kua dej raws li qhov ua tau los ua kom tus lej txaus txaus ua raws li cov khoom luam tawm, thiab tsis txhob siv txoj kev sib npaug ntawm "loj number case thiab loj. dej" rau luam ntawv.

5. Kev tswj hwm ntawm offset luam ntawv xim sib lawv liag. Tam sim no, kev teeb tsa ntawm cov xim luam ntawv tsis sib xws. Hauv kev tsim khoom tiag tiag, cov xim luam ntawv yuav tsum tau txiav txim siab raws li cov yam ntxwv ntawm cov qauv, number case, ntawv, thiab lwm yam thiab cov xwm txheej tshwj xeeb ntawm kev tsim khoom. Raws li ib txwm muaj, kev luam xim xim raws li kev npaj yuav tsum ua raws li cov hauv qab no: cov xim number case uas muaj zog npog lub hwj chim yog luam tawm ua ntej, thiab cov xim uas siab transparency yog luam tawm tom qab; tus number case nrog me me ntawm tus number case yog luam tawm ua ntej, thiab tus number case nrog ntau tus number case yog luam tawm tom qab;

6. Kev tiv thaiv kev luam ntawv ib nrab ntawm cov khoom tiav thiab kev tswj xyuas lub voj voog ntau lawm. Cov khoom lag luam zoo feem ntau yog tsim los ntawm kev sib xyaw ua ke ntawm ntau cov txheej txheem raws li nws cov yam ntxwv ntawm cov khoom. Nyob rau hauv cov txheej txheem ntau lawm, ntau yam luam ntawv thiab kev sib xyaw ua ke xws li bronzing, embossing, thiab tuag-txiav yuav inevitably tshwm sim. Yog hais tias qhov kub thiab av noo ntawm lub rhiav kev tsim khoom tsis ruaj tsis khov, cov khoom semi-tiav yuav tsum tau muab ntim nrog cov yas zaj duab xis nyob rau lub sijhawm no, kom tsis txhob nthuav dav thiab deformation ntawm cov khoom luam tawm, ua rau tsis raug overprinting nyob rau hauv cov txheej txheem tom ntej. Nyob rau tib lub sijhawm, raws li kev nce qib ntawm cov khoom lag luam, lub voj voog ntau lawm yuav tsum tsim kom muaj txiaj ntsig, thiab ntau cov txheej txheem yuav tsum tau txuas nrog kom txo tau txoj haujlwm ntawm kev cob qhia ntau lawm thiab txhim kho kev tsim khoom.