Kushandiswa kweHydroxypropyl Methyl CellulosemuInk Printing
Iyo inki inoumbwa nepigment, binders uye anobatsira ejenti (hydroxypropyl methylcellulose), iyo yakasanganiswa uye yakakungurutswa.
Yakagadzirira kunyora. Ruvara, muviri (kazhinji rheological ehupfumi yeinki senge yakaonda kuenderana uye fluidity inonzi muviri weinki) uye kuomesa kuita zvinhu zvitatu zvakakosha zveinki.
Instant hydroxypropyl methylcellulose yekudhinda inki ihupfu chena isinganhuhwi, isinganakidze, isina chepfu.
Iyo inoputika kuita yakajeka kana zvishoma makore ane makore colloidal mhinduro mumvura inotonhora. Iine maitiro ekukora, kubatana, kuparadzira, emulsification, firimu-kugadzira, kumiswa, adsorption, gelation, basa repamusoro, kuchengetedza mvura uye kudzivirira colloid. inoita basa rinokosha mu.
1
Hydroxypropyl methylcellulose ine maviscosity matatu e100,000, 150,000, uye 200,000. Iyo viscosity ndiyo hunhu hwekuyerera kweinki fluid.
Chiratidzo chehuwandu hwekupikisa (kana kukwesha kwemukati) kufamba. Mukuita kudhinda kweoffset, imwe viscosity inodiwa kuchengetedza inki kutamisa kazhinji.
Ndiyo mamiriro makuru ekuunza uye kutamiswa, uye zvakare ihwo hwakakosha mamiriro ekuona kukurumidza, kujeka uye kupenya kwekudhinda. Ingi viscosity
Kana yakanyanya kukura, zvichange zvakaoma kuendesa uye kutamisa, kuitira kuti huwandu hweinki paurongwa huve husina kukwana, zvichiita kuti kushama kwemifananidzo uye zvinyorwa zvigadzire muenzaniso. Saizvozvowo, viscosity
Kana yakakura zvakanyanya, zvakare zviri nyore kuita kuti bepa rive rakanyorova uye rive upfu, kana kukonzera kupepeta kwepepa rakadhindwa. Asi kana viscosity iri diki, zviri nyore kugadzira
Inoyangarara uye yakasviba, inokonzeresa inki emulsification mumatambudziko akaoma, kana isingakwanise kuchengetedza yakajairika kutapurirana uye kutamisa, uye zvishoma nezvishoma muinki.
Pigment particles inoungana pama rollers, mahwendefa ekudhinda uye magumbeze, uye kana kuunganidza kwasvika kune imwe nhanho, kunokonzera kuputira.
2
Hydroxypropyl methyl celluloseine yakanaka adhesion, kudzivirira kunamatira kweinki panguva yekudhinda
Izvo hazvienderane nekuita uye kudhinda mamiriro eiyo substrate, zvichiita kuti bepa rehupfu, lint, urombo inki overprinting, kudhinda.
Kudhinda kukundikana senge mahwendefa ane tsvina.
3
Hydroxypropyl methylcellulose ine yakanaka thixotropy, kudzivirira iyo thixotropy yeinki panguva yekudhinda.
Kudhinda kukundikana kwakadai se "kuyerera kweinki kwakashata", kusaenzana kweinki kutamisa, uye kuwedzera kwakakomba kwemadotsi kunokonzerwa neakaipa.
4
Hydroxypropyl methylcellulose ine adhesion yakakwira zvakanyanya, mukuita kwekudhindisa, kusimba kweinki hakusi kwakananga chete.
Iyo ine hukama nemhedzisiro yekudhinda uye kunaka kwechigadzirwa chakadhindwa, uye zvakare yakanyatso hukama nehuwandu hweinki pachikamu cheyuniti. Kana ukasarudza
Kushandisa ingi dzine simba rinoita tinting zvinopedza ingi shoma pane ingi dzine simba rekuita zvisina simba, uye mibairo yakanaka yekudhinda inogona kuwanikwa.
5
Hydroxypropyl methylcelluloseine fluidity yakanakisa, yakakodzera fluidity inki, uye kuenzana mutsime reinki
Iine inking yakanaka yekugona uye yakanaka inking kugona; kuchinjisa uye kuchinjisa pakati peinki rollers kana pakati pendiro yekudhinda negumbeze zvakare kwakanaka;
Iyo inki layer iyunifomu; firimu reinki rakadhindwa rakati sandara uye rakatsetseka. Kana fluidity iri shoma, zviri nyore kukonzera murombo inki discharge; kugoverwa kusina kuenzana kweinki layer, nezvimwe.
chiitiko, pamusoro peiyo yakadhindwa inki firimu ichaitawo ripples. Kana iyo fluidity yakawandisa, iyo inki yakatetepa iri nyore kukonzera dot kuwedzera, kudhinda
Ruvara haruna kusimba. Iyo yekuyerera mita nzira inowanzoshandiswa.
Nguva yekutumira: Kubvumbi-25-2024