Visual validation mark

Details Visual validation mark Visual validation mark

B - Operations, Transporting

42

D

B42D 15/00 (2006.01) B41M 3/14 (2006.01) G07D 7/12 (2006.01)

Patent

CA 2159636

A method for producing a validation mark on security pa- per includes (10) printing the mark on the paper using an ink that has the same color as the paper but which has more uni- form directional reflectance than the sheet of paper. That is, the dried ink is a more uniform dif- fuse reflector than is the paper. When the mark is illuminated by a light source (14), as in Fig.6, located on one side of the mark, the mark appears lighter than the paper around it when viewed from the same side as the light source, as in Fig.5; but the mark appears darker than the paper around it, as in Fig.4, when viewed from the side opposite the light source, as in Fig.3. examplary is given.

Affiliated with

Also associated with

Rating

Visual validation mark does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Visual validation mark, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Visual validation mark will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-2027781