Kimberly-clark Corporation

The Brown-bridge Mills, Inc.

The United States of America As Represented by the Secretary of

Nicholas D Gallagher

Richard L Gibbs

Richard S Sternasty

Richard A James

Herbert N Johnston

Henry E Hull

Robert J Valihura

Adhesive coated sheet material particularly adapted for self-releasable adhesive tapes, labels, novelty stickers or the like. The invention comprises the use of a coated fibrous substrate in combination with a water moistenable, heat activated or solvent activated coating wherein the adhesive coating is applied against a coated side of the substrate. The result is an adhesive sheet material that, when bonded to itself by applying the adhesive against the opposite side, may be readily peeled apart by delamination of the coating on the base sheet. This combination provides a highly effective yet very economical bander for coiled materials such as rolls of stamps, or for stacks of currency, and the like. Preferred embodiments include the use of a clay coated Kraft stock base web in combination with a water moistenable adhesive formulation. This provides excellent bonding results and delamination with the base sheet essentially intact. Other embodiments include the use of heat activated or solvent activated adhesives, as well as the use of other base sheets such as latex saturated webs and nonwoven base sheets, for example. In each case the coating for the base sheet and the adhesive are selected from combinations wherein the coating has a greater affinity for the adhesive than for the base web, at least in substantial part, to provide the desired delamination. The benefits will be obtained in the construction where the adhesive is applied to a coated side of the base web and also where the adhesive is applied to the opposite side but, in use, contacts the coated side. It is also important that the base sheet stock have sufficient strength properties for the intended use.

Releasable adhesive sheet material bonded product

Releasable adhesive sheet material

A method and apparatus for forming a compression scored release liner for use with a face stock carrying a pressure sensitive adhesive. The apparatus comprising a generally cylindrical roller having a generally semi-circular cross sectioned rib extending entirely around the surface of the roller concentric therewith, a pair of adjacent recesses forming relief areas extending entirely around the roller on either side of the rib, and a pair of lands each extending outwardly from the relief areas and forming the remaining cylindrical surface of the roller. The roller compression scores the surface of a release liner in a controlled manner even though the thickness of the liner may vary, by providing relief areas and lands adjacent thereto on each side of the compression scoring rib so that excess material can be displaced from the scoring region in order to maintain uniform density of the liner in the scored region and prevent the rib from completely cutting through the liner.

Method for forming a strippable backing material for pressure-sensitive

A method and apparatus for forming a compression scored release liner for use with a face stock carrying a pressure sensitive adhesive. The apparatus comprising a generally cylindrical roller having a generally semi-circular cross sectioned rib extending entirely around the surface of the roller concentric therewith, a pair of adjacent recesses forming relief areas extending entirely around the roller on either side of the rib, and a pair of lands each extending outwardly from the relief areas and forming the remaining cylindrical surface of the roller. The roller to compression scores the surface of a release liner in a controlled manner even though the thickness of the liner may vary, by providing relief areas and lands adjacent thereto on each side of the compression scoring rib so that excess material can be displaced from the scoring region in order to maintain uniform density of the liner in the scored region and prevent the rib from completely cutting through the liner.

Apparatus for forming a stripable backing material for

Long hairs of fur pelts known as guard hairs are removed to reveal soft underfur by contacting the pelt with a substrate coated with adhesive and then pulling the substrate away from the pelt. Recoverable or non-recoverable adhesive systems may be used.

Growing community of inventors

Troy, OH, United States of America

Nicholas D Gallagher