Avery International Corporation

Donald E Van Arnam

Earl W McFeaters

T Liem Ang

Richard R Baggarley

An adhesive laminate, including a base web having a coating of pressure-sensitive adhesive and a backing removably adhered to the coating of adhesive for protecting and containing the adhesive, is described. The backing has one or more non-linear, discontinuous score lines formed, preferably, with a laser. A sine-wave, geometric pattern is also preferred. The non-linear, discontinuous score line enables a crack-and-peel feature to be introduced to the laminate backing.

Method for producing labels having discontinuous score lines in the

Van label having non-linear discontinuous score lines in the backing

Apparatus and methods for measuring retroreflective properties of a surface are disclosed. The apparatus and methods are characterized in that the measured angle of divergence is varied while the angle of incidence is simultaneously varied.

Retroreflectometer

A method is disclosed for forming a retroreflective sheeting having a plurality of retroreflective cube-corner prisms distributed over one of its surfaces such that the prisms are disposed in a planar array having a plurality of zones of prisms having differing angular orientations such that the zones have differing retroreflective brightness when illuminated by a light beam at a high angle of incidence. The method comprises clamping a plurality of pins together such that the ends of the pins form a substantially planar surface, inscribing the planar surface for forming thereon a continuous pattern of solid trigonal pyramids with internal dihedral angles of 90 degrees, releasing the bundle of pins and rotating the individual pins for changing the angular orientation of the formed trigonal pyramids on adjacent pins, reclamping the pins together and using the inscribed surface of the bundle of pins for forming a mold containing cube-corner prism cavities, and producing prismatic retroreflective sheeting by embossing, molding or casting in such mold.

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Ontario, CA, United States of America

Donald E Van Arnam