Zombini i-UV (i-ultraviolet) kunye ne-EB (i-electron beam) zisebenzisa i-electromagnetic radiation, eyahlukileyo kwi-IR (infrared) yokunyanga ubushushu. Nangona i-UV (i-Ultra Violet) kunye ne-EB (i-Electron Beam) inobude obuhlukeneyo, zombini inokubangela ukuhlanganiswa kweekhemikhali kwi-sensitizers ye-inki, oko kukuthi, i-high-molecular crosslinking, ekhokelela ekunyangeni ngokukhawuleza.
Ngokwahlukileyo, ukunyanga kwe-IR kusebenza ngokufudumeza i-inki, ivelisa iziphumo ezininzi:
● Ukuguquka kwesixa esincinci sokunyibilikisa okanye ukufuma;
● Ukuthambisa umaleko we-inki kunye nokuhamba okwandisiweyo, okuvumela ukufunxa kunye nokomisa,
● Umphezulu oxidation obangelwa kukufudumala kunye nokudibana nomoya,
● Ukunyangwa kweekhemikhali ze-resin kunye neoli ye-molecular ephezulu phantsi kobushushu.
Oku kwenza ukuba i-IR inyange inkqubo yokomisa eneenkalo ezininzi kunye nenxalenye, kunenkqubo enye, epheleleyo yokunyanga. Ii-inki ezisekwe kwi-solvent ziyohluka kwakhona, njengoko ukunyangwa kwazo kuli-100% kuphunyezwe ngumphunga wesinyibilikisi esincediswa kukuhamba komoya.
Umahluko phakathi kwe-UV kunye ne-EB yokunyanga
Ukunyanga kwe-UV kwahlukile kunyango lwe-EB ikakhulu kubunzulu bokungena. Imitha ye-UV inokungena okulinganiselweyo; umzekelo, umaleko we-inki ongqindilili we-4–5 µm ufuna ukunyangwa okucothayo ngokukhanya kwe-UV enamandla kakhulu. Ayinakuphiliswa ngesantya esiphezulu, njengamaphepha angama-12,000–15,000 ngeyure kushicilelo lweoffset. Ngaphandle koko, umphezulu unokunyanga ngelixa umaleko wangaphakathi uhlala ulwelo-njengeqanda elingaphekwanga-elinokubangela ukuba umhlaba unyibilike kwaye unamathele.
Ukungena kwe-UV kukwahluka kakhulu ngokuxhomekeke kumbala we-inki. I-inks yeMagenta kunye neCyan zingena lula, kodwa i-inks eziMthubi neziMnyama zifunxa kakhulu iUV, kwaye i-inki eMhlophe ibonisa iUV eninzi. Ke ngoko, ukucwangciswa kombala wokuprinta kukuchaphazela kakhulu ukunyanga kwe-UV. Ukuba ii-inki eziMnyama okanye eziMthubi ezine-UV ephezulu yokufunxa ziphezulu, ii-inki eziBomvu okanye eziBlue zisenokunyangeka ngokunganelanga. Ngokuchaseneyo, ukubeka ii-inki eziBomvu okanye eziBlue ngaphezulu kunye noMthubi okanye uMnyama ngaphantsi kwandisa amathuba okunyangwa ngokupheleleyo. Ngaphandle koko, umbala ngamnye unokufuna ukuphiliswa okwahlukileyo.
Ukunyanga kwe-EB, kwelinye icala, akukho mahluko kuxhomekeke kumbala ekunyangeni kwaye inokungena okunamandla kakhulu. Inokungena ephepheni, iplastiki, kunye nezinye ii-substrates, kunye nokunyanga amacala omabini oshicilelo ngaxeshanye.
Ukuqwalaselwa Okukhethekileyo
Ii-ink ezimhlophe zangaphantsi zingumngeni ngakumbi kunyango lwe-UV kuba zibonakalisa ukukhanya kwe-UV, kodwa ukunyanga kwe-EB akuchatshazelwa koku. Le yenye inzuzo ye-EB ngaphezu kwe-UV.
Nangona kunjalo, ukunyanga kwe-EB kufuna ukuba umphezulu ube kwindawo engena-oksijini ukufezekisa impumelelo eyaneleyo yokunyanga. Ngokungafaniyo ne-UV, enokunyanga emoyeni, i-EB kufuneka inyuse amandla ngaphezu kokuphindwe kalishumi emoyeni ukuze ifezekise iziphumo ezifanayo-umsebenzi oyingozi kakhulu ofuna ukhuseleko olungqongqo. Isisombululo esisebenzayo kukugcwalisa igumbi lokunyanga nge-nitrogen ukususa i-oksijini kunye nokunciphisa ukuphazamiseka, ukuvumela ukunyanga okuphezulu.
Enyanisweni, kumashishini e-semiconductor, ukucinga kwe-UV kunye nokuvezwa kudla ngokuqhutyelwa kwi-nitrogen-ezaliswe, amagumbi angenayo i-oxygen ngenxa yesizathu esifanayo.
Ukunyanga kwe-EB ke ngoko kufanelekile kuphela kumaphepha amancinci okanye iifilimu zeplastiki kwizicelo zokugquma nokuprinta. Ayifanelekanga i-sheet-fed presses kunye namatyathanga omatshini kunye ne-grippers. Ukunyanga kwe-UV, ngokuchaseneyo, kunokusebenza emoyeni kwaye kuyasebenza ngakumbi, nangona unyango lwe-UV olungenayo ioksijini lungafane lusetyenziswe ekushicileleni okanye ekugqumeni izicelo namhlanje.
Ixesha lokuposa: Sep-09-2025
