Page 38 - Marix Technology
P. 38
2009년 Marix Technoloy
Pressure (line perssure) 8.5 mm
TV of ink 18
ink volume sheet offset ink, magenta 0.5 cc
ink distribution time 3 min
evaluation 5 points method (0 is poor and 5 is good)
ink density was also obtained with densitometer
⑦ Print gloss
Printability tester RI-2 Type, 30 rpm
Pressure (line perssure) width of 8.5 mm as press mark
ink volume sheet offset ink (gloss type) cyan 0.3 cc
ink distribution time 3 min
evaluation Gloss meter 75°- 75°after printing when it was printed 24 hrs ago
⑧ Ink set
Printability tester RI-2 Type, 30rpm
Pressure (line perssure) width of 8.5 mm as press mark
ink volume sheet offset ink (gloss type) cyan 0.3 cc
ink distribution time 3 min
set time 30, 60, 120sec after printing
evaluation Densitometer
⑨ Croda ink receptivity
Printability tester RI-2 Type, 30rpm
Pressure (line perssure) width of 8.5 mm as press mark
ink volume CRODA Red Draw Down ink, 1.5cc
ink distribution time 3 min
Printed samples were wiped after 2 minuties from printing
Bri' tness of uncoated paper - Bri' tness of printed area
Reduction of bri'tn ess = × 100
Brightness of uncoated paper
evaluation Hunter Reflectometer
⑩ K&N ink receptivity
Printability tester RI-2 Type, 30rpm
Pressure (line perssure) width of 8.5 mm as press mark
ink volume K&N testing ink, 1.5cc
ink distribution time 3 min
Printed samples were wiped after 2 minuties from printing
Bri' tness of uncoated paper - Bri' tness of printed area
Reduction of bri'tn ess = × 100
Brightness of uncoated paper
evaluation Hunter Reflectometer
⑪ Trapping
Printability tester RI-2 Type, 30rpm
Pressure (line perssure) 8.5 mm
ink volume yellow 0.35cc
magenta 0.15cc
ink distribution time 3 min
evaluation Densitometer
⑫ Wet ink acceptance (Molton method)
Printability tester RI-2 Type, 30rpm
Pressure (line perssure) width of 8.5 mm as press mark
ink volume sheet offset ink magenta 0.5cc
ink distribution time 3 min
watering with Molton roll
evaluation Densitometer
37

