Kiyi ye gravure inki yekudhinda mhando: viscosity

Viscosity inopesvedzerwa neakawanda zvinhu, zvinosanganisira inherent viscosity yebinder resin solution, pigment properties (sekupfekwa kwemafuta, reshiyo, particle size, and dispersion), kugarisana pakati pe pigment nema binders, pamwe nerudzi uye huwandu hwezvinonyungudutsa. Mamiriro emangwana epurasitiki intaglio inks isanganiswa yekukwirira kwakanyanya ine yakaderera viscosity.

• Viscosity ine simba guru pamhando yekudhinda: high viscosity inoderedza fluidity, zvichiita kuti masero asina kukwana kana mavara machena; inoshandisa simba guru pane blade yechiremba, inokonzera kukwesha matambudziko uye mashizha emashizha; uye zvinokanganisa kuchinjisa inki, zvichiita kuti zvivharwe. Sezvineiwo, kuderera zvakanyanya kuderera kunosimudzira yakawandisa inki kuyerera, ichiratidza semvuramaki, kuderedzwa kujeka, uye kuwedzera mukana wenyaya dzemagetsi, izvo zvinokanganisa kufanana kwemavara.

• Iko kushanda viscosity yeinki inofanira kugadziriswa maererano nekudhinda nekukurumidza uye neplate maitiro. Kudhinda kwepamusoro-soro kunoda viscosity yakaderera yekufambisa inki inoshanda; zvisinei, ingi dzakaderera dzinogona kugadzira watermark payakanyanya yakaderera viscosities, isina kukodzera kune yakakwirira-kumhanya maitiro. Toni dzakadzama nenzvimbo dzakasimba dzinoda ingi dzepamusoro dze viscosity kuitira kuberekana kwakadzama, nepo nzvimbo dzakareruka, kunyanya idzo dzine mapeji, dzichibatsirikana kubva kune yakaderera viscosity ingi. Ingi dzemhando yepamusoro dzinopa huwandu hwakakura hwemaviscosity anochinjika, nepo varombo vane hutete hwakatetepa uye vanogumira kushanda pakakwirira viscosities.

• Zvinhu zvinopesvedzera inki inoshanda viscosity zvinosanganisira solvent yekuwedzera ratio, solvent dissolution kunyatsoita, ambient uye inki tembiricha, solvent evaporation rate, uye solvent balance. Kuwedzera zvinonyungudutsa zvakakodzera zvinogona kugadzirisa viscosity, asi kuwandisa kunogona kukonzera kukanganisa; misanganiswa yakasiyana-siyana yekunyungudutsa inowedzera kunyungudika; kushanduka kwekushisa kunokanganisa viscosity uye nguva yekuoma; solvent evaporation inoda kuzadzikiswa nenguva kuti uchengetedze viscosity yakagadzikana; uye kusaenzana kwe solvent kunogona kukonzera viscosity anomalies kana resin precipitation, zvinoda kugadziriswa kune solvent kuumbwa kwekugadzirisa kwekuenzanisa.