Tape sheet pads and dispenser and method of dispensing individual tape sheets from such pads
Assignee3M Innovative Properties Company
InventorsScott D. Pearson, David F. Serino
Life of this patent
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Abstract
A stacked pad of large adhesive tape sheets containing a plurality of superimposed tape sheets formed from a substrate with an area of differential release, which extends less than the full length and width of the substrate. The second major surface of the substrate includes a layer of an adhesive. Sequential tape sheets in the pad are configured and arranged with the area of differential release alternating between first and second corners of the sheets with the adhesive layer of each tape sheet is releasably adhered to an adjacent tape sheet at a higher adhesion level, except for the area of differential release which adheres to an adjacent tape sheet at a lower adhesion level.
Claims20
A stacked pad of adhesive tape sheets comprising a plurality of superimposed sheets wherein:
- (a) the sheets include:
- (i) a substrate having (A) first and second opposite major surfaces, (B) a longitudinal length, (C) a lateral width, and (D) an area of differential release defined relative to one of the first and second major surfaces and which extends less than the full length and width of the substrate, and
- (ii) a layer of an adhesive on the second major surface of the substrate, and
- (b) sequential sheets are configured and arranged with the area of differential release translocated to different corners of the sheets;
- (c) the adhesive layer of each sheet is releasably adhered to an adjacent sheet at a first, higher adhesion level, except for the area of differential release which adheres to an adjacent sheet at a lower adhesion level;
- (d) wherein the substrate has first and second opposing longitudinal ends, and further wherein the relative release forces of the first and second adhesion levels are configured for consistently causing a portion, but less than an entirety, of the first longitudinal end of an intermediate sheet to release and lift from an immediately underlying sheet as an immediately overlying sheet is completely peeled from the intermediate sheet;
- (e) wherein the area of differential release is bounded by and outer perimeter, a shape of the perimeter defining a maximum width dimension in a direction corresponding with the lateral width of the substrate and a maximum length dimension in a direction corresponding with the longitudinal length of the substrate, and further wherein the maximum width dimension is less than the lateral width of the substrate.
Dependencies are inferred from the claim text.