pH thiab viscosity tswj ntawm dej-based printing 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 ntawv luam tawm, ntawv sau cia, hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
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Feem ntau cov Flexo tshuab luam ntawv to taub tias thaum luam ntawv nrog cov dej hauv qab, nws yuav tsum tau them nyiaj rau cov xim ntawm tus cwj pwm thiab kom ruaj khov. Hauv kev sim, tus neeg teb xov tooj siv Zahn khob thiab cov cai rooj los soj ntsuam. Kev kuaj qhov viscosity yog txoj haujlwm tshaj plaws. Yog tias tus cwj mem ntawm tus cwj pwm xiam hoob qhab yog siab tshaj qhov kev xav tau, ntau cov dej feem ntau yuav ntxiv, tab sis qhov teeb meem yuav tshwm sim ntawm lub sijhawm no.
Yog hais tias cov dej siv tib leeg tswj cov viscosity ntawm tus cwj pwm, acidity ntawm tus number case yuav txo thaum cov viscosity yuav me dua txhua zaus dej ntxiv. Cov pH ntawm dej yog 7, thaum lub pH ntawm Flexo's aqueous inks feem ntau tswj los ntawm lub chaw muag khoom, feem ntau ntawm 8.5 thiab 9.5. Thaum tus nqi pH tsham, cov nyhuv ntawm tus cwj mem zas yog pib hloov. Qhov qis pH yuav muaj teeb meem loj xim ntawm lub zog. Dab tsi ntxiv, tus number case pib cais los yog cais los tsim cov pwm muddy phenomenon, siab pH. Nws kuj ua rau ib tug poob ntawm cov qauv thiab muaj pes tsawg leeg.
Hnub no, pH pom tau tias yog qhov tseem ceeb tshaj plaws hauv kev tswj Flexo qhov nruab nrab-kev luam tawm. Puas yog pH tseem ceeb dua ntoj tawm? Cov lus teb yeej muaj tseeb. Txawm li cas los xij, thaum tsim kom muaj tus cwj pwm zoo, qhov pH thiab viscosity yog sib cais thiab ob leeg tswj tau.
Siv cov kua roj ntsha kom haum
Yuav tswj cov pH thiab viscosity li cas? Ua ntej, koj yuav tsum siv lub pHmeter los ntsuas lub txiaj ntsig pH, nkag siab txog cov nqi qaub ncaug ntawm tagnrho cov cheebtsam thiab cov khoom siv ntxiv, thiab sau cov kev hloov ntawm txhua lub sijhawm. Nroog siv dej yuav txawv ntawm ntau npaum li ib chav nyob ntau zaus hauv ib lub hlis. Ntxiv rau cov dej los kho cov dej khov no, lwm cov kua dej khov kuj tseem siv tau. Cov kua dej txias no muaj qee yam tshuaj Amines thiab lwm cov khoom xyaw. Feem ntau, tus cwj mem muab los ntawm tus cwj mem xaij muab tau tus zauv pH ntawm tus ntawv. ~ 1.5, ces koj tuaj yeem tsis siv dej los kho tus number case.
PH thiab viscosity yog tus yuam sij rau kev vam meej ntawm luam ntawv. Nyob hauv cheeb tsam ntawm kev luam ntawv, kev siv, kev sib tw, kev ntsuas, ntawv phom, kev cog khoom thiab xov tag, cov ntaub ntawv thiab ziab khaub ncaws, tus number case yog tsuas yog qhov zoo tshaj plaws. Thiab cov pH kom tau qhov xim zoo tshaj. Muaj ntau cov kab ntawv tau pom tias qhov sib txawv ntawm cov xim tshwm sim thaum lub sij hawm sib tshooj, phuam lub hnab, los yog cov xim thau tshaj, yog li txoj kev pab tshaj plaws yog nce viscosity thiab qis pH, uas pab kev ziab tshav kub thiab tsis tuaj yeem xa ntawv luam tawm. Cov xim yog wetted los ntawm cov xim luam tawm dhau los, xws li: Piv txwv li no yuav tsum tau muaj ntau tshaj ib qho dej txias ntxiv rau txhua tus ntawm cov ntu khij nyhiab kom kho qhov siab txaus ntsev. Txuas ntxiv, cov kev hloov kho no yuav tsum yog siab dua tus pH ntawm txhua tus lej ntawm 1.0 mus rau 1.5.
Lub ntsiab lus ntawm system automation
Hauv kev siv ntawm tus cwj mem, kev siv lub tshuab ua kom muaj zog thiab cov cuab yeej pH tuaj yeem txhawm rau pom tus cwj pwm ntawm tus lej ntawm kab, uas yog txo cov kabmob thev naus laus zis thiab ntog poob qis, thaum txo cov pob zeb tsis sib haum (VOCs) (Amines, lwm cov tshuaj siv tau txuag lub sijhawm zoo rau lwm yam dej num tseem ceeb rau kev lag luam luam.
Niaj hnub no lub cim tshiab ntawm kev tswj lub tshuab tsis zoo thiab muaj kev cia siab, yuav ua tau yooj yim ua thiab kho, thiab yuav tsum tau yuav tus nqi qis dua lwm chav tsev los yog ib qho kev tswj hwm kev tswj hwm, qee tus txawm muab cov ntawv SPC / ISO.
Qhov kawg, tab sis tsis yog tsawg dua, txawm tias siv lub tshuab kaw lus los yog siv lub lag luam, qhov tseem ceeb tshaj plaws yog siv cov kua dej txias tsis siv dej.