Ntawm Lub luag haujlwm ntawm Embellished Plate Liquid nyob rau hauv Personalized Grandson Birthday Cards Printing

Ntawm lub luag hauj lwm ntawm embellished phaj kua nyob rau hauv Personalized Grandson Birthday Cards printing

Raws li kev txhim kho tam sim no ntawm kev lag luam luam ntawv, cov kev xav tau ntawm cov ciav dej tau nce siab thiab siab dua. Vim hais tias cov kev cai offset luam ntawv tso siab rau lub hauv paus ntsiab lus ntawm ink repellent printing, kev siv thiab kev tswj ntawm moistening kua nyob rau hauv offset printing yog qhov txuas tseem ceeb ntawm kev luam ntawv. Txawm hais tias anhydrous offset luam ntawv tau tsim los rau qhov zoo, tab sis nyob rau hauv lub anhydrous luam ntawv tseem tsis tau nrov dua niaj hnub no, yuav ua li cas tswj cov ntsuas ntawm cov luam ntawv daws nyob rau hauv lub offset printing, thiab ntau tsim nyog siv cov printing tov, yog tseem. ib lub ntsiab lus tseem ceeb uas peb yuav tsum tau tham.

Tus nqi PH ntawm cov tshuaj moistening

Nyob rau hauv cov txheej txheem ntawm offset luam ntawv, vim lub siab luam ntawv thiab lwm yam hnav yog vim li cas nyob rau hauv cov txheej txheem luam ntawv, nws yog ib qho yooj yim mus rhuav tshem cov hydrophilic oxidation txheej nyob rau saum npoo ntawm PS phaj, thiaj li hais tias cov dej khiav kev daws teeb meem yuav tsum tau ua kom ib tug tej yam. acidity, nyob rau hauv thiaj li yuav tsim ib tug tshiab hydrophilic ntsev txheej, raws sij hawm kho lub puas hydrophilic txheej. Tsis tas li ntawd, nyob rau hauv cov txheej txheem luam ntawv kom ntseeg tau tias muaj qee qhov tsis muaj zog acidity ntawm cov kua luam ntawv, tuaj yeem ua lub luag haujlwm hauv kev tshem tawm qhov khoob ntawm cov roj layout. Kev xyaum tau ua pov thawj tias, rau PS phaj, feem ntau ua raws li cov txheej txheem luam ntawv ntawm cov embellishing tov PH ntau yog 5 ~ 6.

Tus nqi PH ntawm cov tshuaj yog loj heev, ua ntej ntawm tag nrho cov, yuav ua rau cov duab ib feem ntawm inkphilic txheej yog yaj, uas ua rau poob ntawm cov ntawv luam ntawv phaj nqi; Tsis tas li ntawd, pawg alkaline hauv cov tshuaj yuav hnov ​​​​mob nrog cov fatty acids nyob rau hauv tus number case los tsim muaj zog hydrophilic pawg. Qhov loj ntawm cov pab pawg hydrophilic no yuav ua rau emulsification loj ntawm tus number case hauv txheej txheem luam ntawv.

Thaum tus nqi PH ntawm cov tshuaj me me dhau lawm, tsis yog tsuas yog yuav tsis ua lub luag haujlwm ntawm kev kho lub phaj, tab sis yuav ua rau lub siab tsis zoo ntawm cov phaj, thiab tsis tuaj yeem tsim cov txheej txheej hydrophilic ntsev ruaj khov, cov duab ntawm cov phaj thiab cov khoom siv tsis zoo. kev sib xyaw ntawm cov phaj hlau kuj tseem yuav raug rhuav tshem, yog li txo tus nqi luam ntawv ntawm lub phaj. Tsis tas li ntawd, cov tshuaj moistening yuav hnov ​​​​mob nrog tus neeg sawv cev ziab hauv tus number case, yog li ncua sijhawm ziab ntawm tus number case hauv txheej txheem luam ntawv, ua rau sab nraub qaum ntawm cov ntawv luam tawm qias neeg, thiab cuam tshuam rau tus nqi ntawm tus number case.

PH ntau yam uas tau muab los saum toj no tsis yog qhov tseeb. Qhov xwm txheej tau ntsib nyob rau hauv qhov tseeb ntau lawm yog ntau yam, PH tus nqi ntawm embellishment tov tsis tas li. Qhov ntawd yog hais tias, nyob rau hauv cov txheej txheem luam ntawv, peb yuav tsum ua qee qhov kev hloov kho kom haum rau PH tus nqi ntawm tus ciav dej raws li qhov xwm txheej tiag tiag.

Thaum lub thickness ntawm tus number case txheej nce, tus number case ntawm cov duab nraaj yuav inevitably kis mus rau qhov seem dawb paug, uas yog ib qho yooj yim mus tshwm "dub version"; Thaum tus naj npawb ntawm desiccant nyob rau hauv tus number case nce, lub viscosity ntawm tus number case particle coarser, adhesion ntawm qhov dawb paug ntawm cov ntawv luam ntawv nce, nws yuav qias neeg version; Thaum luam ntawv cov khoom uas tsis tshua muaj zog saum npoo, hydrophilic ntsev txheej ntawm cov txheej txheem yog nquag hnav vim qhov tshwm sim loj ntawm cov hmoov thiab cov plaub hau poob; Thaum ib puag ncig kub siab heev, luam ntawv number case yuav cais tawm ntau cov roj fatty acids dawb, nrog rau kev kawm version ntawm OH ˉ cov kua tshuaj tiv thaiv, ua rau tus number case emulsification. Cov xwm txheej saum toj no yuav tsum tau them sai sai rau qhov txo qis ntawm PH tus nqi ntawm cov dej tov, txhawm rau txhim kho acidity ntawm cov tshuaj.

Kev cuam tshuam ntawm daim ntawv acidity thiab alkalinity ntawm cov tshuaj moistening. Daim ntawv PH tus nqi rau qhov nruab nrab yog qhov zoo, tab sis qhov tseeb vim tias cov txheej txheem papermaking txawv, txhua hom ntawv acid thiab alkaline sib txawv. Feem ntau hais lus, offset ntawv thiab lwm yam ntawv tsis-coated PH nqi nyob rau hauv 4.5 ~ 7.0, yog qaug zog acid; Tus nqi PH ntawm cov ntawv coated yog 7.0 ~ 9.0, uas tsis muaj zog alkaline. Lub tshuab luam ntawv tuaj yeem kho cov tshuaj moistening raws li qhov tseeb ntawm daim ntawv. Thaum daim ntawv yog acidic, PH tus nqi ntawm kev khiav dej num tuaj yeem loj dua (hauv kev luam ntawv ntawm cov ntawv offset, PH tus nqi tuaj yeem tswj tau ntawm 5.5 thiab 6.5 raws li qhov xwm txheej), thaum daim ntawv yog alkaline, PH tus nqi ntawm cov kev daws teeb meem tuaj yeem ua me dua (thaum kev luam ntawv dav dav ntawm cov ntawv coated, PH tus nqi ntawm cov kev daws teeb meem tuaj yeem tswj tau ntawm 4.8 thiab 5.0, thiab tuaj yeem txo kom tsim nyog raws li qhov xwm txheej).