Security paper

Details Security paper Security paper

1984-04-30

1985-08-13

Chin, Peter

Paper making and fiber liberation

Processes and products

Including solid non-waterlaid preform

162123, 162124, 162125, 162132, 162140, 162186, D21D 300, D21H 510

Patent

active

045343985

ABSTRACT:
This invention relates to a security paper document incorporating counterfeit deterrent, optical variable devices that display their optically active properties in reflectance when there are changes in the angle of incodent light with respect to the eye of the viewer. The devices are applied by means of a carrier paper and a base web format during the papermaking process. An embedment roll presses the device within the base web while the base web fibers are unconsolidated and pliable.

REFERENCES:
patent: 28370 (1860-05-01), Howell
patent: 167223 (1875-08-01), Casilear
patent: 3880706 (1975-04-01), Williams
patent: 4037007 (1977-07-01), Wood
patent: 4437935 (1984-03-01), Crane, Jr.
patent: 4462867 (1984-07-01), Fuller

Affiliated with

Also associated with

Rating

Security paper does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2313757