Lub luag hauj lwm thiab kev tswj hwm ntawm qhov chaw muab tshuaj tua tawm (ob qho)
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.
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Qeb peb, kev tswj kev dampening kua
Muaj peb yam rau kev tswj ntawm dampening kua.
1. Tus nqi pH ntawm cov tshuaj tov yog tshuaj.
2. Qhov kev siv tshuaj tsis haum yog tshuaj.
3. Kev tswj cov ntsiab lus ntawm cov tshuaj tsis haum.
(1) kev tiv thaiv pH ntawm dampening kua
Tus nqi pH qhia tias lub zog los yog acidity ntawm kev daws, uas yog, pH. Tus nqi paab tau muab faib ua 14 theem;
PH = 7 yog qhov nruab nrab tsis haum;
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PH> 7 yog ib qho kua alkali;
Cov pH ntawm txhua theem ntawm pH yog 10 zaug. Qhov ntawd yog PH = 5 yog 10 npaug qis dua li PH = 6 pH. PH = 5 yog 100 zaus sib cais los ntawm PH = 7 pH. Qhov no yog 10 × 10 = 100.
Feem ntau, lub pH ntawm PS phaj dampening kua yog tswj ntawm 5 thiab 6, uas yog weakly acidic.
Cov nyhuv ntawm qhov ntxa kua pH ntawm printing:
Ntau acidity thiab tsawg pH:
1 Ua kom tsis txhob muaj cov txheej txheem ntawm lub hnab ntim ntawm lub plhaub nplaum, lub plhaub ntawm lub phaj yog corroded los ntawm cov kua qaub, thiab luam tawm yooj yim luam tawm.
2 Cov phaj luam ntawv yog cov neeg tawg rog, ua rau me dua, thiab muaj mob loj, cov phiaj yuav poob.
3 Ua kom puas hlwb cov duab ntawm oxidative conjunctiva, kom lub sij hawm qhuav ntawm tus cwj mem ntev, thiab yog tias nws yog qhov loj, tus cwj mem tsis qhuav. Kev sim tau pom tias yog tus pH poob los ntawm 5.6 mus rau 2.5, lub sij hawm ziab ntawm tus cwj mem yog ntxiv ntawm thawj 6 xuab moos mus txog 24 xuab moos.
4 Txhawb cov emulsification ntawm tus cwj pwm, cuam tshuam qhov kev kis ntawm cov xwm txheej txheej.
5 ua rau tus number case yuav npub thiab npub.
Thaum lub acidity tsis muaj zog thiab cov pH loj heev:
Lub hydrophilicity ntawm dawb paug ntawm lub phaj luam yog tsis muaj zog, yog li ntawd tus number case ntawm qhov nraaj yog kis, uas yog yooj yim ua rau muab tshuaj txhuam.
Nws yog qhov nyuaj ua kom muaj kev tiv thaiv nyob rau hauv seem dawb ntawm lub phaj luam ntawv, uas ua rau cov seem ntawm daim ntawv luam tawm yuav tsis huv.
3 Txhawb lub xaj kua mem ntawm daim npav, kom qhov sib txawv ntawm daim duab raug txo, cov nyhuv luam tawm ncaj nraim, lub teeb, thiab xim tsis kaj.
Daim duab nraaj ntawm 4 lub duab zoo PS version yog yooj yim yaj, ua rau tsis tiav cov duab thiab tsis muaj cwj nrag.
Txoj kev dav dav rau kev txiav txim siab txog cov pH ntawm dampening kua yog:
1. Oily number case, cov kua qaub qaub ntawm dampening kua yog qhov loj dua, uas yog, tus nqi paab me me, txwv tsis pub nws yog ib qho yooj yim rau qias neeg.
2. Cov npauj npaim muaj ntau dua acidic dua cov dampening tov ntawm tus cwj mem xiav, uas yog, tus nqi p ntsuas me me.
3. Thaum lub sij hawm luam tawm, ib qho khoom tuab ntawm cov inkinted ink plhaub yuav tsum muaj cov kua qaub ncaug kua dua ntau dua ib qho nyias.
4. Lub dampening kua siv nyob rau hauv lub tshav pob version muaj acidity ntau dua qhov screen version, thiab cov tuab hlau version muaj txoj kev sib raug zoo piv rau cov nplua xaim.
5. Hauv qhov kev sib tw luam ntawv uas muaj qhov kub thiab txias, vim tias tus cwj mem muaj ntsis yooj yim dua, lub acidity ntawm cov kua txhuam tsev yuav tsum tsim nyog kom zoo ntxiv.
6. Cov khoom luam tawm nrog cov ntawv pluag zoo yuav tsum muaj cov kua qaub ncaug ntau dua ntawm cov tshuaj tsis haum.
7. Cov ntawv luam ntawv feem ntau yog tsis nruab nrab los sis tsis muaj zog alkaline, uas zoo rau cov zauv kua ziab. Txawm li cas los xij, lub pH ntawm daim ntawv yuav tsis ruaj khov, qee zaus kuj yog acidic los yog alkaline, uas yuav cuam tshuam rau qhov ziab thiab xim ntawm tus cwj mem. Yog li ntawd, lub tshuab luam ntawv yuav tsum kho lub pH ntawm dampening daws raws li acidity thiab alkalinity ntawm daim ntawv. Thaum daim ntawv yog acidic, lub pH ntawm dampening daws yog loj dua thiab ntau dua alkaline. Thaum daim ntawv yog alkaline, lub pH ntawm dampening kua yog me thiab lub acidity yog muaj zog. Khaws tus cwj mem qhuav kom qhuav thiab qoos los ntawm acid acid.
8. Qhov txiaj ntsig pH ntawm dampening solution yuav tsum tau kwv yees thiab npaj ua ntej luam tawm, thiab yuav tsum raug kho raws li lub sijhawm tshwj xeeb thaum luam ntawv. Xav kom cov khoom zoo.
Dampening solution P ntsuas tus nqi ntsuas:
Nws yog feem xyuam los ntsuas cov pH ntawm cov tshuaj tsis haum nrog lub tshuab ntsuas pa (pH). Qhov electrode ntawm lub ntsuas cua (pH) yog nyob rau hauv ib lub khob raj. Thaum muab pov rau hauv lub qhov ciav dej, qhov ion them nqi hauv qhov ciav hlau muaj qhov cuam tshuam tus electrode hauv lub khob raj. Tus nqi them rau hauv electrode ua ib qho me me tam sim no hauv Circuit nyob rau hauv lub tshuab ntsuas pa (pH). Tam sim no muaj zog thiab digitized thiab ces muab piv rau tus nqi uas twb tau muab cia rau hauv lub xov tooj hluav taws xob hauv lub tshuab ntsuas pa los ntsuas nws qhov nqi. Thaum kawg qhov tshwm sim ntawm LCD vaj huam sib luag. Cov pa ntsuas phaus raug muag hauv cov khoom siv tshuaj lom neeg.
(2) Kev tswj ntawm qhov nyiaj dampening kua
Kev haus ntawm cov kua nruab nrag: Cov khoom noj tau ntawm qhov chaw pom zoo yog tsuas yog rau cov hauv qab no:
1. Lub xaj kua mis ntawm tus cwj pwm xaws dej haus. Cov cim me ntsis ntawm tus cwj mem qhuav yuav ua kom zoo sib npaug ntawm tus cwj mem thiab dej, thaum tus loj dua tus lej ntawm tus cwj pwm, qhov dej ntau dua yuav tsum tau ua kom zoo.
2. Daim ntawv absorbs tus dej haus tau noj. Txij li cov qauv muaj fiber ntau thiab cov kev ua haujlwm tsis sib luag, kev tsis sib haum, qhov dej loj, qhov dej, thiab qhov nce ntawm ntau cov ntaub ntawv sib txawv, qhov dej txaus ntawm daim ntawv thaum lub sij hawm luam tawm yog txawv. Feem ntau, cov ntawv uas tsis-coated absorbs dej ntau dua li daim ntawv coated.
3. Thaum lub sij hawm luam ntawv, dej tau ntim ntawm lub thoob dej, dej lo, ntawv phaj, thiab cov zoo li.
4. Nyem thiab pov cov dej.
Offset txiav txim xyuas cov dej num ntawm kev siv dej
Thaum luam ntawv, ntau npaum li cas yuav tsum siv cov ntsiab lus ntawm qhov kev luam tawm, qhov no yog qhov txheej txheem kev sib haum xeeb, vim tias muaj ntau yam yuav hloov thaum lub sijhawm luam ntawv, tsis hais cov ntawv xov xwm, ink, paper, they will change, tus nqi ntawm dampening daws siv. Yog li ntawd, cov neeg ua haujlwm luam ntawv tsuas yog txiav txim siab tau raws li qhov tseeb raws li qhov chaw luam tawm thaum lub sij hawm ntawd. Feem ntau xav txog cov nram qab no:
1. Lub cheeb tsam thiab kev faib tawm ntawm qhov tsim qhov ntawm qhov teeb tsa. Daim duab nraaj ntawm lub phaj luam tawm muaj thaj tsam loj thiab muaj dej ntau.
2. Lub plhaub taum zuag ntxiv ntawm cov ntawv luam tawm txheej, qhov loj dua cov dej siv, thinner lub plhaub ntim quav, thiab me me dej ntau;
3. Cov ntawv xov xwm fiber ntau yog xoob, lub npoo yog qhov ntxhib, daim ntawv muaj qhov dej tsis haum, thiab kev siv dej yog loj. Coated paperboard, cardboard thiab lwm cov qauv yog ntom, qhov saum npoo yog du, dej nqus dej me, thiab kev siv dej yog me me.
4. Cov nab npawb muaj dej tsis haum, siab viscosity, me me emulsification thiab tsawg dua cov dej siv. Cov cwj pwm muaj cov dej tsis muaj zog, me viscosity, loj emulsification nqi, thiab dej loj noj.
5. Qhov siab tshaj qhov ceev ntawm qhov offset xovxwm, qhov dej nws siv ntau dua.
6. Qhov kub ntawm qhov kub nyhiab yog siab, cov av noo tsis tshua muaj, thiab huab cua zoo yog loj, thiab cov dej siv yog loj.
7. Qhov zoo dua qhov zoo ntawm lub phaj, qhov zoo dua qhov kev kho mob xuab zeb, thiab me me dej.
8. Lub tshuab luam ntawv loj ntawm cov ntawv luam tawm loj yog qhov loj, thiab kev noj cov zaub mov ntawm qhov chaw sib txawv yog qhov siab.
9. Qhov siab tshaj qhov nyuaj ntawm daim pam, qhov ntau dua qhov noj tau ntawm dampening daws.
Thaum lub caij offset luam tawm, qhov seem ntawm daim ntawv luam ntawm cov ntawv luam tawm yeej ib txwm cia nyob rau ntawm ib qho thickness thiab cov dej dej yog balanced nrog tus cwj mem nyob hauv seem nraaj. Qhov no yog qhov number case tswj xyuas. Feem ntau, lub plhaub ntawm lub plhaub ntim hauv cov phom luam yog 2 mus rau 3 μm, thiab cov thickness ntawm cov dej hauv qhov seem ntawm 0.5 mus rau 1 μm, thiab qhov ntim ntawm cov ciav kua ntawm tus cwj pwm yog 15% mus rau 26%. Yeej, tus number case thiab dej tshuav nyiaj li cas lawm.
Kev daws ntau dhau los sis tsis haum me ntsis tuaj yeem cuam tshuam qhov zoo ntawm cov khoom luam tawm.
Thaum qhov nyiaj ntawm cov kua nruab tsuag loj heev:
1 Cov cwj mem naj npawb yog muab pov tseg, tus number case yog accelerated thiab emulsified, thiab cov ntawv nyeem thiab cov ntawv nyeem tsis tuaj yeem ua tau zoo li qub, thiab kev ua yuam kev xws li "deinking" thiab "flower version" tshwm sim;
2 Cov phaj luam ntawv muaj dej ntau heev, lub tshuab luam ntawv tsis zoo li qub, daim duab yog zom zaws, cov xim ntawm cov luam ntawv tsis zoo, lub suab ntawm cov laus tsis zoo, thiab qhov tshwm sim ntawm "sib thiab lub teeb" tshwm;
3 cuam tshuam txog kev luam ntawv ntawm daim ntawv, nyob rau hauv ib sab, hloov tus number case absorbing ntawm daim ntawv, ua cov txheej thiab nplaum rau ntawm daim ntawv yuav raug cuam tshuam, ua rau plaub hau poob thiab hmoov poob phenomenon; ntawm qhov tod tes, cov dej ntau ntawm cov ntawv yuav ua rau daim ntawv nthuav thiab deform. , cuam tshuam qhov zoo tshaj ntawm overprinting.
Thaum qhov nyiaj ntawm qhov chaw tov yog dhau me me:
1 Tshooj ntawv ntawm cov ntawv xov xwm tsis tshua muaj kev cuam tshuam los ntawm kev siv tshuaj tsis haum, kom qee cov txheej txheej hydrophilic raug cuam tshuam, thiab thaum mob hnyav, nws yuav raug tawg, ua rau tus cwj mem xaj yuav tsum tau muab pov rau hauv ib qho dawb ntawm cov luam ntawv phaj.
2 Yuav tau muab cov ntawv xa tawm, qhov ntawm cov khoom luam tawm yuav raug qias neeg, cov nyhuv luam tawm tsis zoo, thiab lub suab qib yuav ploj mus.
Ntau cov dej yuav tsum siv rau kev luam tawm raws li kev luam tawm txawv. Thaum hloov lub phaj ntawv, kev siv dej yuav tsum raug txo kom tsawg dua ntawm cov ntawv xov xwm, thiab hauv cov txheej txheem ntawm kev sau cov xim kho, maj mam ntxiv cov dej kom txog thaum lub tshuab luam ntawv tsis tau muab pov tseg, luam tawm nrog tus nqi tsawg tshaj plaws ntawm cov dej, tsis txhob haus dej. Ink, thiaj li los txhim kho kom zoo ntawm luam ntawv.