Ukusetshenziswa kweI-Hydroxypropyl Methyl CelluloseUkuphrinta ngoyinki
Uyinki wakhiwe ngama-pigment, ama-binder kanye nama-assistant agents (i-hydroxypropyl methylcellulose), axutshwa futhi asongwe
Ukulungele ukuba yiyinki. Umbala, umzimba (ngokuvamile izakhiwo ze-rheological zeyinki ezifana nokuvumelana okuncane kanye nokugeleza kwamanzi zibizwa ngokuthi umzimba weyinki) kanye nokusebenza kokomisa yizona zakhiwo ezintathu ezibaluleke kakhulu zeyinki.
I-instant hydroxypropyl methylcellulose yokunyathelisa uyinki iyimpuphu emhlophe engenaphunga, engenambitheki, engenabo ubuthi.
Ikhukhumala ibe yisisombululo se-colloidal esicacile noma esinamafu kancane emanzini abandayo. Inezici zokuqina, ukubopha, ukuhlakazeka, ukuhlanganisa, ukwakha ifilimu, ukumiswa, ukumuncwa, ukwakheka kwe-gelation, umsebenzi wobuso, ukugcinwa kwamanzi kanye ne-colloidal evikelayo. Idlala indima ebalulekile ku.
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I-Hydroxypropyl methylcellulose ine-viscosities ezintathu ezingu-100,000, 150,000, kanye no-200,000. I-viscosity iyisici sokugeleza koketshezi lweyinki.
Inkomba yenani lokumelana (noma ukungqubuzana kwangaphakathi) ekunyakazeni. Enkambisweni yokuphrinta kwe-offset, kudingeka i-viscosity ethile ukuze kugcinwe ukudluliselwa kweyinki ngendlela evamile.
Kuyisimo esiyinhloko sokulethwa nokudluliselwa, futhi kuyisimo esibalulekile sokunquma ukushesha, ukucaca kanye nokukhanya kokunyatheliswa. Ukuqina kweyinki
Uma inkulu kakhulu, kuzoba nzima ukuyidlulisa nokudlulisa, ukuze inani likayinki kusakhiwo linganeli, okuholela ekutheni ihluzo nombhalo kube mhlophe ukuze kwakheke iphethini. Ngokufanayo, i-viscosity
Uma inkulu kakhulu, kulula futhi ukwenza iphepha liguquguquke futhi libe yimpuphu, noma ukubangela ukuxebuka kweshidi eliphrintiwe. Kodwa uma i-viscosity incane kakhulu, kulula ukuyikhiqiza.
Njengoba intanta futhi ingcolile, izobangela ukuhlanganiswa kwe-inki ezimweni ezimbi kakhulu, uma ingakwazi ukugcina ukudluliselwa nokudluliselwa okuvamile, futhi kancane kancane kuyinki.
Izinhlayiya ze-pigment ziqoqana kuma-roller, amapuleti okunyathelisa kanye nezingubo zokulala, futhi uma ukunqwabelana kufinyelela ezingeni elithile, kuzobangela ukuminyana.
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I-Hydroxypropyl methyl celluloseinokunamathela okuhle, igwema ukunamathela kweyinki ngesikhathi senqubo yokuphrinta
Ayifani nezimo zokusebenza kanye nokuphrinta kwe-substrate, okuholela ku-paper powder, i-lint, i-inki engasebenzi kahle yokunyathelisa, ukunyathelisa
Ukwehluleka kokuphrinta njengamapuleti angcolile.
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I-hydroxypropyl methylcellulose ine-thixotropy enhle, igwema i-thixotropy yeyinki ngesikhathi senqubo yokuphrinta.
Ukwehluleka kokuphrinta njengokuthi “ukugeleza kabi kweyinki”, ukudluliselwa kweyinki okungalingani, kanye nokwanda okukhulu kwamachashazi okubangelwa ububi.
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I-Hydroxypropyl methylcellulose inokunamathela okuphezulu kakhulu, enkambisweni yokunyathelisa nge-offset, amandla okufaka umbala kayinki awagcini nje ngokuqondile.
Kuhlobene nomphumela wokuphrinta kanye nekhwalithi yomkhiqizo ophrintiwe, futhi kuhlobene kakhulu nenani likayinki endaweni ngayinye. Uma ukhetha.
Ukusebenzisa uyinki onamandla okufaka umbala kuzodla uyinki omncane kunoyinki onamandla okufaka umbala abuthakathaka, futhi imiphumela emihle yokuphrinta ingatholakala.
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I-Hydroxypropyl methylcelluloseinoketshezi oluhle kakhulu, uyinki yoketshezi efanelekile, kanye nokulingana emthonjeni weyinki
Inekhono elihle lokuyina kanye nekhono elihle lokuyina; ukudlulisa nokudlulisa phakathi kwama-roller ayinki noma phakathi kwepuleti lokuphrinta nengubo nakho kuhle;
Ingqimba yeyinki iyafana; ifilimu yeyinki eprintiwe iyisicaba futhi ibushelelezi. Uma ukugeleza kwayo kuncane kakhulu, kulula ukubangela ukukhishwa kabi kweyinki; ukusatshalaliswa okungalingani kwengqimba yeyinki, njll.
isenzakalo, ubuso befilimu yeyinki eprintiwe buzovela nama-ripples. Uma uketshezi lukhulu kakhulu, ungqimba lweyinki oluncane kulula ukubangela ukwanda kwamachashazi, ukuphrinta
Umbala awuqinile. Indlela ye-flow meter ivame ukusetshenziswa.
Isikhathi sokuthunyelwe: Ephreli-25-2024