Dab tsi yog cov teebmeem ntawm daim ntawv, number case thiab plates rau offset zoo?
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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Ua ntej, daim ntawv txiav txim siab
Lub cev thiab tshuaj muaj zog thiab kev qhia ntawm cov ntawv, nrog rau lub cev nqaij daim tawv, cov khoom siv kho qhov muag, cov ntawv luam yeeb, cov yeeb yam tshuaj. Ntawm lawv, ze rau qhov kev pom zoo ntawm offset printing yog: ceev, tensile zog, stretchability, whiteness, absorbency, smoothness, gloss, pH thiab cov zoo li.
Qhov ceev nruj ntawm ntawv thiab tus nqi ntawm lub zog tensile. Thaum lub siab raug sib cais thaum lub sij hawm luam ntawv, lub khob ntawm tus cwj pwm thiab cov nplaum ua tau los ntawm qhov dej ntawm daim pam yuav ua kom plaub hau thiab hmoov poob, ua rau cov pob txha zoo xws li cov pob cwj pwm zoo lossis cov pob khaus ntawm cov ntawv luam tawm. Ntxuav hniav tsis ua hauj lwm.
Lub stretchability ntawm daim ntawv muaj feem xyuam rau cov kev taw qhia uas cov fibers raug teem, thiab qhov nce ntawm cov filaments nyob rau hauv cov kev taw qhia ntawm cov filaments yog me dua piv txwv nyob rau hauv cov kev taw qhia ntawm ob sab ntawm cov fiber ntau array, yog li ntawd qhov offset printing ntawm cov filaments nyob rau hauv cov kev taw qhia mus tib seem rau lub axis ntawm lub nruas yog ua kom txo cov luam ntawv. Daim duab yog overprinted vim ntub elongation.
Cov xim dawb thiab ua kom zoo ntawm daim ntawv muaj feem xyuam rau xim vividness thiab saturation ntawm daim duab luam. Tom qab xim dawb kua number case nyob rau ntawm daim ntawv uas muaj lub siab dawb, lub teeb cia rau hauv daim ntawv yog tsawg absorbed los ntawm daim ntawv thiab muaj ntau tus thiaj. Zoo los qhia cov xim thawj ntawm tus number case xim. Daim ntawv nrog pluag whiteness muaj ib tug khub, absorbs ntau lub teeb projection, tsawg dua reflected lub teeb, thiab daim duab duab yog grey. Daim ntawv nrog pluag smoothness muaj ntxhib saum npoo, muaj zog txaus nqus, dullness tom qab blotting, thiab lub teeb duab projection yog absorbed ntau, thiab lub teeb reflected yog diffusely reflected. Qhov muag pom tau qhov teeb meem ntawm cov ntawv luam tawm yog pluag, thiab xim yog grey thiab tsis kaj.
Cov ntaub ntawv roj-absorbbs absorbs cov binder hauv tus cwj mem naj npawb hauv tus nqi loj ua ntej qhov kev txav tsis qhuav cov conjunctiva, uas ua rau cov tawv nqaij conjunctiva nyob rau ntawm cov luam ntawm cov luam thiab cov khoom tsis zoo. Nyob rau hauv loj heev mob, muaj kuj yog blotting tsis ua hauj lwm.
Feem ntau, cov pH ntawm daim ntawv yog me ntsis acidic ntawm 5.5 los yog siab dua. Thaum lub p p poob qis qis dua 5.5, lub acidity ntawm daim ntawv nce. Daim ntawv no tuaj yeem ua kom lub pob txha poob qis thiab ua rau tsis tiav ntawm daim ntawv.
Thib ob, tus lej feem ntau
Cov cwj mem uas siv los nthuav qhia cov duab thiab xim ntawm daim duab yog cov kua fluid, uas yog thauj khoom los ntawm ib tus cuav quav hlau, coated ntawm daim duab ntawm daim ntawv luam tawm, coated nrog ib daim pam, thiab thaum kawg muab xa mus rau ntawm daim ntawv, thiab qhuav thiab conjunctiva. Nws tiav niam txiv tom qab. Cov ntaub ntawv luam tawm yuav tsum muaj cov cim tseem ceeb ntawm cov ntawv luam tawm xim: fixability, dryness, coloration, fineness, viscosity, fluidity, thiab ua rau acid, alkali, dej, lub teeb thiab lub teeb.
Nrog kev nce hauv kev ceev ceev ntawm kev tshaj tawm thiab qhov tshwm sim ntawm cov tshuab luam yeeb ntau, qhov kev daws teeb meem ceev ceev dua yog qhov tseem ceeb dua. Tsav zauv luam ntawm lub tshuab luam yeeb ntau tshaj li ntawm 8000 nplooj / xuab moos, thiab txhua daim ntawv luam tawm yuav siv li 0.5 vib nas this (s) muab xa mus rau ob qho xim luam ntawv. Yog tias qhov kho ceev ntawm tus cwj pwm xij qeeb qeeb, lub hau xim tom qab yuav muab khaws cia ntxiv rau tom qab xim pam thiab maj mam thim, xwv cov xim rov tom qab yuav ua rau cov xim tsis haum. Kev ziab ntawm lub cug quav ntim yog feem ntau ntau tshaj plaub teev, thiab tus cwj pwm qhuav ntxov yog crusted rau ntawm cov yas rubber, ua teeb meem rau kev luam ntawv thiab ua haujlwm tu. Yog tias cov ntawv luam tawm ntawm daim ntawv no qhuav heev, cov ntaub nplaum (vitrification) tuaj yeem ua rau, tom qab tsis muaj xim tso xim. Ntawm qhov tsis sib thooj, yog tias qhov luam tsis qhuav, tom qab xim tsis tuaj yeem sau tsis tau, uas txo cov khoom ua tau haujlwm zoo.
Qhov ntau dua cov xim ntawm tus number case, zoo dua, nws yuav tsum tau mus txog 100%, tab sis qee tus number case coloring tus nqi tsuas yog mus txog 80-90%. Yuav kom ua tau raws li cov xim xim saturation, tus neeg ntaus xov tooj tua hluav taws muaj cov qauv ntawm kev txhim kho lub thickness ntawm cov ink ink ink los kho. Txawm li cas los xij, tus number case yog luam tawm tuab tuab heev, uas yuav ua rau sab nraum qab ntawm cov khoom yuav tsis huv thiab cov dots hauv cheeb tsam tsaus nti yuav plooj.
Feem ntau, txoj kab uas hla ntawm txoj hnyuv qis yog txog 7.5 μm. Yog nws suav raws qhov kab thaj tsam ntawm 1613 μm 2 ntawm 200 txoj kab, nws tuaj yeem tau 68 phom sij, thiab daim ntawv pov thawj raws cai yuav tsum yog ntau tshaj 15 npav, uas yog ntau tshaj li txaus. Txawm li cas los xij, hauv cov ntawv luam tawm, tus qauv ntawm lub cev tsis muaj zog tuaj yeem tiv thaiv tsis tau cov polymerization. Vim tias tus cwj mem xauv khawm rub tawm ntawm ib lub tshuab, lub viscosity ntawm tus number case increases, thiab cov hmoov ntawm daim ntawv yog sib xyaw nrog cov ntaub plaub, uas ua rau cov xim coarser thiab thicker, cuam tshuam cov teeb meem luam tawm. Lub meej thiab theem ntawm expressiveness.
Thib peb, qhov kev xav luam tawm
Cov ntawv luam tawm ntawm cov offset tau tam sim no nkag mus rau PS theem theem, tab sis kuj tseem muaj coob tus zauv ntawm cov khoom siv cov khoom siv roj hmab, PVA daim hlau, ntau txheej hlau daim hlau, thiab cov xyoo dhau los, Zinc Oxide ntawv phaj cov ntawv tau tsim. Cov ntawv no muaj ntau phaj ua cov txheej txheem. Raws li cov txheej txheem luam ntawv, PS phaj yog qhov yooj yim, thiab cov PVA phaj thiab cov txheej txheem txheej txheem txheej ntau txheej txheem ntau nyuab dua.
Txoj kev loj hlob, kev txhim kho thiab tha xim ntawm PVA version yog tag nrho cov kev tswj ntawm tes. Yog li ntawd, cov ntawv luam ntawm cov ntawv xov xwm luam tsis yooj yim yog tswj hwm, thiab cov xim luam yeeb ntawm qhov teeb meem luam tawm feem ntau tsis ua raws li qhov yuav tsum tau ua. Tsis tas li ntawd, qhov thickness ntawm zinc-coated version ntawm matte yog tswj los ntawm kev. Zoo tsis ruaj khov kho. Qee zaus tus zauv ntawm daim tawv nqaij zinc yog ntau dua, phaj cov ntaub ntawv txo los ntawm tus thawj 0.55mm mus rau 0.45mm, thiab cov neeg teb xov tooj tus neeg ua hauj lwm tseem vam khom rau kev ua haujlwm rau daim phaj printing, feem ntau cov padding yog ntau dhau lawm lossis dhau me ntsis, uas yog sib npaug ntawm hloov lub phom lub tog raj kheej. Lub vojvoog tseem pauv qhov loj ntawm daim duab sab hauv, ua cov duab puab sab hauv.
Cov txheej txheem multi-layer hlau muaj kev ua haujlwm ntev ntawm ntau lab lab, thiab yog tsim rau luam ntawv, nqi se, thin phau ntawv, cov phau ntawv, thiab lwm yam uas muaj kev sib sau thiab cov ntawv loj loj. Txawm li cas los xij, hauv txheej txheem luam ntawv, yog tias cov av xuab zeb poob los ntawm daim ntawv yog rubbed, chrome txheej ntawm lub phaj feem ntau yog crushed thiab raug rau tooj liab, uas ua rau cov tawv nqaij khov heev. Nws yog ib qho teeb meem heev rau kev tshem tawm cov chrome plating thiab crushing smear. Nws yog tsim nyog yuav tau siv cov poov tshuaj citrate ua ntej. Nws yog siv sij hawm ntau kom tshem tawm cov av thiab tom qab siv cov cuab yeej tshwj xeeb los chrome.
Zinc oxide daim ntawv phaj txoos muaj tsawg tus nqi, thiab cov txheej txheem tsim tau yooj yim, tiam sis qhov kub thiab txias, qhov voltage ntawm lub tshuab electrostatic phaj ua, cov ntsiab lus dej ntawm lub hauv paus ntawm daim ntawv phaj, thiab cov electrostatic conductivity ntawm toner yuav tsum tau siab. Feem ntau, qee cov kev sib txuas tau me ntsis, thiab cov ntawv luam tawm ntawm cov ntawv nyeem yog dawb los yog tag nrho cov qias, thiab muaj ntau yam kev phem.