Back to results
US 4,537,809 AGranted
Van label having non-linear discontinuous score lines in the backing
AssigneeAvery International Corporation
InventorsT. Liem Ang, Donald Van Arnam, Earl McFeaters
Life of this patent
Estimating the term…
Abstract
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.
Claims19
An adhesive laminate comprising:
- (a) a base web having a coating of pressure-sensitive adhesive on at least one major surface and a backing removably adhered to the coating of pressure-sensitive adhesive for protecting and containing the pressure-sensitive adhesive;
- and
- (b) at least one non-linear, discontinuous score line extending across the backing and intersecting two edges of the backing, the score line comprising scored segments, wherein a portion of the backing has been cut, of from about 0.01 to about 0.5 inch in length and a depth of at least 80 percent of the thickness of the backing, separated by unscored segments of from about 0.005 to about 0.06 inch in length, said non-linear, discontinuous score line having a wavelength of from about 0.5 to about 6 inches and an amplitude of from about 0.03 to about 1.0 inch, said backing of the laminate having both crackability and pull-across.
An adhesive laminate comprising:
- (a) a base web having a coating of pressure-sensitive adhesive on at least one major surface and a backing removably adhered to the coating of the pressure-sensitive adhesive for protecting and containing the pressure-sensitive adhesive;
- and
- (b) at least one discontinuous score line extending in a sine-wave pattern across the backing and intersecting two edges of the backing, the score line comprising scored segments, wherein a portion of the backing has been removed, of from about 0.01 to about 0.5 inch in length and a depth of at least 80 percent of the thickness of the backing, and unscored segments of from about 0.005 to about 0.06 inch in length, said discontinuous score line having a wavelength of from about 0.5 to about 6.0 inches and an amplitude of from about 0.03 to about 0.5 inch, said backing of the laminate having both crackability and pull-across.
Dependencies are inferred from the claim text.