US 5,336,541 AGranted

Linerless pressure-sensitive label

AssigneeKo-Pack Corporation

InventorJunichi Kobayashi

Life of this patent

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Abstract

An improved linerless pressure-sensitive label construction wherein label sheets carrying pertinent messages are pasted together with pressure-sensitive adhesive without using a release liner, and by separating the pasted-together label sheets, each separated section can be used as a label. Strips of release agent are provided at a given interval on the top and the bottom label sheets on their respective facing faces, the strips being arranged in a positionally staggered manner, so that the strips of release agent on one of the label sheets will come in contact with the strips of adhesive on the other. The strips of adhesive on either one of the label sheets are separated from one another by a narrow gap, so that the strips of adhesive which hold the top and the bottom label sheets together are separated from each other at the narrow gap and also from the strips of release agent on the other label sheet when the top and the bottom label sheets are peeled off from each other, whereby the label sheets can be easily separated.

Claims10

Dependent claims

A linerless pressure-sensitive label comprising:

top and bottom label sheets having mutually facing inner surfaces that are adhered together via an adhesive and a release agent;
strips of release agent provided on an inner surface of said top label sheet and on a mutually facing inner surface of said bottom label sheet, said strips of release agent being provided on said inner surfaces of each of said label sheets with a given spacing between adjacent strips of release agent, said strips of release agent on said top label sheet being positionally staggered from said strips of release agent on said bottom label sheet;
strips of adhesive arranged between said strips of release agent on said top label sheet and said inner surface of said bottom label sheet, and arranged between said strips of release agent on said bottom label sheet and said inner surface of said top label sheet;
said strips of release agent and said strips of adhesive having respective widths in a direction of a plane of said inner surfaces of said top and bottom label sheets, and having respective thicknesses in a direction perpendicular to said inner surfaces of said top and bottom label sheets;
said strips of adhesive on said top label sheet all being separated in a width direction of said strips from strips of adhesive on said bottom label sheet which are adjacent to said strips of adhesive on said top label sheet by means of a non-adhesive narrow gap between said adjacent strips of adhesive;
and
said strips of adhesive having a thickness which is substantially greater than the thickness of said strips of release agent.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/027,112Filed 4 Mar 1993 · continuation in part
Priority: JP 3-1322369 May 1991
Granted: 9 Aug 1994
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G09F 3/02
Labels, tag tickets, or similar identification or indication means ; Seals; Postage or like stamps: forms or constructions
G09F 3/10
Fastening or securing by means not forming part of the material of the label itself: by an adhesive layer
G09F 2003/0202
Forms or constructions: printed before use
G09F 2003/0247
Adhesive: non-strippable anti-stick coatings