Ii-oligomers ziimolekyuli eziqulathe iiyunithi ezimbalwa eziphindaphindayo, kwaye zezona zinto ziphambili zee-inki ezinokunyangwa yi-UV. Ii-inki ezinokunyangwa yi-UV zii-inki ezinokomiswa kwaye zinyangwe ngoko nangoko ngokuvezwa kukukhanya kwe-ultraviolet (UV), nto leyo eyenza ukuba zilungele iinkqubo zokuprinta kunye nokugquma ngesantya esiphezulu. Ii-oligomers zidlala indima ebalulekileyo ekumiseleni iimpawu kunye nokusebenza kwee-inki ezinokunyangwa yi-UV, ezifana nokuxinana, ukunamathela, ukuguquguquka, ukuqina, kunye nombala.
Kukho iindidi ezintathu eziphambili ze-oligomers ezinyangekayo ze-UV, ezizezi: ii-epoxy acrylates, ii-polyester acrylates, kunye nee-urethane acrylates. Udidi ngalunye luneempawu zalo kunye nokusetyenziswa kwalo, kuxhomekeke kuhlobo lwe-substrate, indlela yokunyanga, kunye nomgangatho ofunekayo wemveliso yokugqibela.
Ii-epoxy acrylates zii-oligomers ezinee-epoxy groups kumqolo wazo, kunye nee-acrylate groups eziphelweni zazo. Zaziwa ngokusebenza kwazo okuphezulu, i-viscosity ephantsi, kunye nokumelana okuhle kweekhemikhali. Nangona kunjalo, zikwanazo nezinye iingxaki, ezifana nokuguquguquka okungekuhle, ukunamathela okuphantsi, kunye nokuthambekela kokutyheli. Ii-epoxy acrylates zifanelekile ukuprintwa kwi-substrates eziqinileyo, ezifana nesinyithi, iglasi, kunye neplastiki, kunye nokusetyenziswa okudinga ukukhanya okuphezulu kunye nobunzima.
Ii-acrylates zePolyester zii-oligomers ezineeqela ze-polyester kumqolo wazo, kunye namaqela e-acrylate ekupheleni kwazo. Zaziwa ngokusebenza kwazo okuphakathi, ukuncipha okuphantsi, kunye nokuguquguquka okuhle. Nangona kunjalo, zikwanazo nezinye iingxaki, ezifana ne-viscosity ephezulu, ukumelana okuphantsi kweekhemikhali, kunye nokukhupha ivumba. Ii-acrylates zePolyester zifanelekile ukuprintwa kwi-substrates eziguquguqukayo, njengephepha, ifilimu, kunye nelaphu, kunye nokusetyenziswa okufuna ukunamathela okuhle kunye nokuguquguquka.
Ii-acrylates ze-urethane zii-oligomers ezineeqela ze-urethane kumqolo wazo, kunye namaqela e-acrylate ekupheleni kwazo. Zaziwa ngokusebenza kwazo okuphantsi, i-viscosity ephezulu, kunye nokuguquguquka okugqwesileyo. Nangona kunjalo, zikwanazo nezinye iingxaki, njengeendleko eziphezulu, ukuthintela i-oksijini ephezulu, kunye nesantya esiphantsi sonyango. Ii-acrylates ze-urethane zifanelekile ukuprintwa kwiindawo ezahlukeneyo, ezifana nomthi, ulusu, kunye nerabha, kunye nokusetyenziswa okufuna ukuqina okuphezulu kunye nokumelana nokukrala.
Ukuqukumbela, ii-oligomers zibalulekile ekwenziweni nasekusebenzeni kwee-inki ezinokunyangeka ze-UV, kwaye zinokuhlulwahlulwa zibe ziiklasi ezintathu eziphambili, ezizezi ii-epoxy acrylates, ii-polyester acrylates, kunye nee-urethane acrylates. Udidi ngalunye luneengenelo kunye neengxaki zalo, kuxhomekeke ekusetyenzisweni kunye ne-substrate. Uphuhliso lwee-oligomers kunye ne-UV ink yinkqubo eqhubekayo, kwaye iintlobo ezintsha ze-oligomers kunye neendlela zokunyanga ziyahlolwa ukuhlangabezana neemfuno ezikhulayo zoshishino lwe-inki.
Ixesha leposi: Jan-04-2024
