Self-adhesive stamps
First Claim
1. A method of making a self-adhesive stamp comprising the steps of:
- providing a web or sheet of stamp paper and providing lines of perforations in the stamp paper defining a plurality of stamps, followed by applying a layer of pressure-sensitive adhesive and a peelable backing sheet to a back face of the stamp paper, wherein the pressure-sensitive adhesive is applied in a pattern such that there is little or no adhesive applied to back faces of the stamps adjacent to the lines of perforations;
wherein the step of applying comprises the steps of;
coating the layer of pressure-sensitive adhesive onto the back face of the perforated stamp paper, followed by laminating the backing sheet onto the coated and perforated stamp paper.
2 Assignments
0 Petitions
Accused Products
Abstract
Self-adhesive stamps comprising: a layer (2) of stamp paper bearing a printed stamp design on its front and having perfoated edges (6), a layer of pressure-sensitive adhesive (5) on the back of the stamp paper, and a peelable backing sheet (7) covering the adhesive, wherein the pressure-sensitive adhesive layer is patterned such that there is little or no adhesive adjacent to the perorated edges of the stamp paper. Preferably, the pressure-sensitive adhesive is a hot-melt adhesive, and preferably the adhesive is applied by printing. Also a method of making such stamps comprising the steps of: providing a sheet or web of stamp paper having lines of perforations defining stamps therein, followed by coating the back of the stamp paper with a patterned layer of pressure-sensitive adhesive and a peelable backing sheet.
98 Citations
15 Claims
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1. A method of making a self-adhesive stamp comprising the steps of:
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providing a web or sheet of stamp paper and providing lines of perforations in the stamp paper defining a plurality of stamps, followed by applying a layer of pressure-sensitive adhesive and a peelable backing sheet to a back face of the stamp paper, wherein the pressure-sensitive adhesive is applied in a pattern such that there is little or no adhesive applied to back faces of the stamps adjacent to the lines of perforations; wherein the step of applying comprises the steps of;
coating the layer of pressure-sensitive adhesive onto the back face of the perforated stamp paper, followed by laminating the backing sheet onto the coated and perforated stamp paper. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of making a self-adhesive stamp comprising the steps of:
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providing a web or sheet of stamp paper and providing lines of perforations in the stamp paper defining a plurality of stamps, followed by applying a layer of pressure-sensitive adhesive and a peelable backing sheet to a back face of the stamp paper, wherein the pressure-sensitive adhesive is applied in a pattern such that there is little or no adhesive applied to back faces of the stamps adjacent to the lines of perforations, and wherein an adhesive-free margin of 0.1-5 mm width is left on the back faces of the stamps adjacent to the lines of perforations; and wherein the step of applying comprises the steps of;
coating the layer of pressure-sensitive adhesive onto the back of the perforated stamp paper, followed by laminating the backing sheet onto the coated and perforated stamp paper.
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9. A method of making a self-adhesive stamp comprising the steps of:
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providing a web or sheet of stamp paper and providing lines of perforations in the stamp paper defining a plurality of stamps followed by applying a layer of pressure-sensitive adhesive and a peelable backing sheet to a back face of the stamp paper, wherein the pressure-sensitive adhesive is applied in a pattern such that there is little or no adhesive applied to back faces of the stamps adjacent to the lines of perforations; and wherein the plurality of stamps are spaced apart on the stamp paper, with a carcase of stamp paper between the stamps defined by the lines of perforations around the stamps, and the method further comprises the steps of;
following the application of the peelable backing sheet with die cutting along the lines of perforations and lifting off the carcase, thereby leaving a plurality of stamps attached to the backing sheet in spaced-apart fashion. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method of making a self-adhesive stamp comprising the steps of:
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providing a web or sheet of stamp paper and providing lines of perforations in the stamp paper defining a plurality of stamps, followed by applying a layer of pressure-sensitive adhesive and a peelable backing sheet to a back face of the stamp paper, wherein the pressure-sensitive adhesive is applied in a pattern such that there is little or no adhesive applied to back faces of the stamps adjacent to the lines of perforations and wherein an adhesive-free margin of 0.1-5 mm width is left on the back faces of the stamps adjacent to the lines of perforations; and wherein the plurality of stamps are spaced apart on the stamp paper, with a carcase of stamp paper between the stamps defined by the lines of perforations around the stamps, and the method further comprises the steps of;
following the application of the peelable backing sheet with die cutting along the lines of perforations and lifting off the carcase, thereby leaving a plurality of stamps attached to the backing sheet in spaced-apart fashion.
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Specification