IFRA28
Reference Name: IFRA28Printing process definition: ISO 12647-3:1998+, Coldset offset printing, contact exposed negative acting plates (tone value increase of 28%), newsprint, screen ruling 40 lines per cm.
Responsible Organization:: Ifra, Washingtonplatz, 64287 Darmstadt, Germany. Phone: +49 6151 733-6. Fax: +49 6151 733-800. www.ifra.com.
Contact Information:
Ulrike Cremer
Programme Manager Training
Phone +49 6151 733-738
Fax: +49 6151 733-872
email: [email protected]
Documentation source: see ISO 12647-3
Electronic data source: 928 patches: IFRA28S.txt, 1485 patches: IFRA28L.txt, see also www.ifra.com.
Date created: Unknown
Measurement backing: black
TONAL VALUE INCREASE
Densitometric:
28%
Colorimetric:
TVI for cyan, magenta, yellow and black computed from colorimetric data is shown below.
50% 28.9, 28.2, 27.2, 27.1
40% 30.0, 28.4, 27.7, 28.7
Note that colorimetric TVI values will not exactly match densitometric TVI values. See What is colorimetric TVI?
For profiles see www.ifra.com.