Ukuprinta kwe-UV yindlela eyahlukileyoushicilelo lwedijithalisisebenzisa ukukhanya kwe-ultraviolet (UV) ukomisa okanye ukunyanga i-inki, izincamathelisi okanye ii-coating ngokukhawuleza nje ukuba ifike ephepheni, okanye i-aluminium, ibhodi ye-foam okanye i-acrylic - eneneni, ukuba nje ingena kwiprinta, le ndlela ingasetyenziselwa ukuprinta phantse kuyo nayiphi na into.
Indlela yokunyanga i-UV – inkqubo yokomisa nge-photochemical – yaqala yaziswa njengendlela yokomisa ngokukhawuleza ii-gel nail polishes ezisetyenziswa kwi-manicure, kodwa kutshanje yamkelwe lishishini lokushicilela apho isetyenziselwa ukuprinta kuyo nayiphi na into ukusuka kwimiqondiso kunye neencwadana ukuya kwiibhotile zebhiya. Le nkqubo iyafana noshicilelo lwendabuko, umahluko kuphela yiinki ezisetyenzisiweyo kunye nenkqubo yokomisa – kunye neemveliso ezibalaseleyo eziveliswayo.
Kwiprinta yendabuko, kusetyenziswa ii-inki ze-solvent; ezi zinokuphuma kwaye zikhuphe iikhompawundi ze-organic eziguquguqukayo (ii-VOC) eziyingozi kwindalo esingqongileyo. Le ndlela ikwavelisa - kwaye isebenzisa - ubushushu kunye nevumba elihamba nayo. Ngaphezu koko, ifuna iipowders ezongezelelweyo zokutshiza ukunceda kwinkqubo yokucima i-inki kunye nokomisa, okungathatha iintsuku ezininzi. Ii-inki zifunxwa kwindawo yokuprinta, ngoko ke imibala inokubonakala ngathi ihlanjiwe kwaye iyaphela. Inkqubo yokuprinta inqunyelwe kakhulu kwiindlela zephepha kunye nekhadi, ngoko ke ayinakusetyenziswa kwizinto ezifana neplastiki, iglasi, isinyithi, ifoyile okanye i-acrylic efana nokuprinta kwe-UV.
Kwiprinta ye-UV, izibane ze-mercury/quartz okanye ze-LED zisetyenziselwa ukunyanga endaweni yobushushu; isibane se-UV esilungiselelwe ngokukodwa silandela ngokusondeleyo njengoko i-inki ekhethekileyo isasazwa kwindawo yokuprinta, iyomisa kwangoko emva kokuba isetyenzisiwe. Ngenxa yokuba i-inki itshintsha ukusuka kwi-solid okanye i-paste ibe lulwelo phantse kwangoko, akukho thuba lokuba iphele kwaye ngoko akukho VOCs, umsi onobuthi okanye i-ozone ekhutshwayo, okwenza ubuchwepheshe bube nobuhlobo nokusingqongileyo phantse bungabi nampembelelo yekhabhoni.
I-inki, i-adhesive okanye i-coating inomxube wee-monomers zolwelo, ii-oligomers - ii-polymers eziqulathe iiyunithi ezimbalwa eziphindaphindayo - kunye nee-photoinitiators. Ngexesha lenkqubo yokuphilisa, ukukhanya okuphezulu kwinxalenye ye-ultraviolet ye-spectrum, enobude obuphakathi kwama-200 nama-400 nm, kutsalwa yi-photoinitiator efumana i-chemical reaction - i-chemical cross linking - kwaye ibangela ukuba i-inki, i-coating okanye i-adhesive iqine ngoko nangoko.
Kulula ukubona ukuba kutheni ukuprinta kwe-UV kudlule iindlela zokomisa ezisebenzisa amanzi kunye nezinyibilikisi kwaye kutheni kulindeleke ukuba kuqhubeke kuthandwa. Le ndlela ayikhawulezisi nje kuphela imveliso - oko kuthetha ukuba kwenziwa okuninzi ngexesha elincinci - amazinga okulahlwa ayancitshiswa njengoko umgangatho uphezulu. Amathontsi e-inki amanzi ayasuswa, ngoko ke akukho kukhuhla okanye ukufunxa, kwaye njengoko ukomisa kuphantse kwangoko, akukho mphunga kwaye ngenxa yoko akukho kulahleka kobukhulu okanye umthamo wokugquma. Iinkcukacha ezincinci zinokwenzeka, kwaye imibala ibukhali kwaye icacile ngakumbi njengoko kungekho kutsalwa kwindawo yokuprinta: ukukhetha ukuprinta kwe-UV kuneendlela zokuprinta zendabuko kunokuba ngumahluko phakathi kokuvelisa imveliso yodidi, kunye nento evakalelwa ingcono kakhulu.
Ii-inki zikwaphucukile kwiipropati zomzimba, ziphucukile ekugqwethekeni, zikrwela ngcono, ziyakwazi ukumelana neekhemikhali, zinyibilikisa kwaye ziqine, ziyakwazi ukuthamba ngcono kwaye imveliso yokugqiba ikwancedakala ngamandla aphuculweyo. Zihlala ixesha elide kwaye ziyamelana nemozulu, kwaye zibonelela ngokumelana nokufiphala okwenza ukuba zilungele imiqondiso yangaphandle. Le nkqubo ikwabiza kancinci - iimveliso ezininzi zinokuprintwa ngexesha elincinci, zikumgangatho ongcono kwaye zingabi nakwaliwa kakhulu. Ukungabikho kwee-VOC ezikhutshwayo kuthetha ukuba akukho monakalo mkhulu kwindalo kwaye le ndlela izinzile ngakumbi.
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Ixesha lokuthumela: Epreli-22-2022