Resealable package film
First Claim
Patent Images
1. A film construction for attaching to a base member to define a package, the film construction comprising:
- a top layer, the top layer having a top surface and a bottom surface,a removable adhesive having a defined pattern applied below the bottom surface, anda polyethylene (PE) emulsion layer, covering at least a portion of the adhesive pattern, wherein the PE emulsion layer is heat sealable.
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Abstract
A package film is provided for attaching to a base member to define a package. The package film construction includes a top layer having a top surface and a bottom surface. A removable adhesive is provided having a defined pattern applied below the bottom surface. A polyethylene (PE) emulsion layer is provide that covers at least a portion of the adhesive pattern, with the PE emulsion layer being heat sealable to the base member.
120 Citations
30 Claims
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1. A film construction for attaching to a base member to define a package, the film construction comprising:
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a top layer, the top layer having a top surface and a bottom surface, a removable adhesive having a defined pattern applied below the bottom surface, and a polyethylene (PE) emulsion layer, covering at least a portion of the adhesive pattern, wherein the PE emulsion layer is heat sealable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A resealable package comprising:
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a package film having a top layer, the top layer having a top surface and a bottom surface, a removable adhesive applied in a pattern below the bottom surface, and a polyethylene (PE) emulsion layer, covering at least a portion of the adhesive pattern, and a base, the base having a peripheral portion, the pattern of the removable adhesive on the film conforming to the peripheral portion of the base, and a skin portion on the peripheral portion, the skin portion being heat-sealable to the PE emulsion layer, wherein the PE emulsion layer is heat-sealed to the skin portion and the PE emulsion transforms to a film during heat-sealing, and wherein the removable adhesive is separable from the transformed PE film for separating the top layer from the base, and the removable adhesive being resealable to the transformed PE film for closing the package. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of forming a resealable package, comprising the steps of:
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providing a package film having a top layer, the top layer having a top surface and a bottom surface, applying a removable adhesive in a defined pattern below the bottom surface of the package film, applying a polyethylene (PE) emulsion layer in a pattern covering at least a portion of the removable adhesive pattern, providing a base, the base having a peripheral portion, placing the package film in contact with the base, wherein the pattern of the removable adhesive conforms to the peripheral portion of the base and wherein the PE emulsion is in contact with the peripheral portion of the base, heat-sealing the package film to the peripheral portion of the base, with the applied heat transforming the PE emulsion to a film material, separating the PE emulsion film and the base from the top layer and the removable adhesive to open the package, and resealing the removable adhesive to the peripheral portion. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification