JPS6018357Y2 - Lid material - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a lid material.

The present inventor previously devised a lid material in which an adhesive sheet was combined with a base material (Japanese Utility Model Publication No. 54-92818).

However, in this lid material, the adhesive layer and release layer are in contact with each other in the cross section of the lid material, so it can be used during cutting of the lid material, when sealing the lid material, and during storage after the container and lid material are integrated. The disadvantages were that the adhesive stickers were raised and the adhesive oozed out and became sticky.

As a result of research in order to eliminate the layer defects, the inventor of the present invention established a release layer not on the entire surface of the lid base material, but on a portion of it, and firmly adhered a part of the adhesive layer directly to the lid base material surface. Based on this knowledge, the present invention was completed based on the discovery that layer defects could be resolved by

That is, the gist of the present invention is to provide an adhesive layer capable of sealing with a container on one surface of a lid base material, and partially provide a release layer on the other surface of the lid base material, and to provide a release layer on the other surface of the lid base material. A pressure-sensitive adhesive layer is provided on the surface of the provided lid base material, a pressure-sensitive adhesive sheet base material is laminated on the pressure-sensitive adhesive layer, and a half-blind line is passed through the three layers of the pressure-sensitive adhesive sheet base pressure-sensitive adhesive layer and the release layer. It is a lid material made by engraving.

Hereinafter, the lid material of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a lid material 11 of the present invention.

An adhesive layer 2 capable of sealing with the container is provided on one surface of the lid base material 1, and a mold release layer 3 is partially provided on the other surface of the lid base material 1, and the mold release layer 3 is provided. A pressure-sensitive adhesive layer 4 is provided on the surface of the lid base material 1 that has been covered, and a pressure-sensitive adhesive sheet base material 5 is laminated on the pressure-sensitive adhesive layer 4. A half-blind line 7 is carved through the three layers.

A printed layer 8 is provided on the surface of the adhesive sheet base material 5 opposite to the side on which the adhesive layer is laminated.

In addition, 12 shows an adhesive sheet.

Further, 6 indicates the portion of the adhesive sheet that remains as part of the lid material.

In the lid material of the present invention, the lid base material may be cellophane, acetate, polyethylene, polypropylene, polyester, polyvinyl chloride, polyvinylidene chloride, polystyrene, polycarbonate, polyamide, aluminum foil, paper, or a laminate of these. A laminated film can be applied.

The thickness is preferably 12 to 200μ.

Next, as adhesive layer 2, low, medium, and high density polyethylene, ethylene vinyl acetate copolymer, ethylene acrylic acid copolymer, ionomer, polypropylene, ethylene-propylene copolymer, hot melt adhesive, vinyl chloride, acrylic resin, A solution type coating agent such as polyester resin can be applied.

The thickness is preferably 3 to 100 μm. Next, as the mold release layer 3, a material obtained by printing a mold release composition mainly composed of a mold release silicone resin by a gravure printing method or the like can be applied.

The coating amount is preferably 0.2 to 20 y/rIl.

Next, as the adhesive sheet base material 5, the same material as the above-mentioned lid base material can be used.

Next, as the adhesive layer 4, ethylene-vinyl acetate copolymer,
Styrene-butadiene-styrene copolymer, styrene-isoprene copolymer, rosin ester, pinene polymer,
A 100% solid heat-melt adhesive with a viscosity of 100,000 cps at a temperature of 150°C, an acrylic emulsion adhesive whose main component is 2-ethylhexyl acrylate, and a natural adhesive Non-transferable pressure sensitive adhesives such as rubber latex type adhesives, water soluble pressure sensitive adhesives such as copolymer emulsions of acrylic monoesters and acrylic acid alkyl esters of polyoxyethylene, polyvinylpyrrolidone, copolymers of maleic anhydride and methyl vinyl ether etc. can be applied.

In addition, the thickness of the adhesive layer is preferably 10 to 50 f/d.

In constructing the above lid material, the lid base material 1 partially provided with the release layer 3 is laminated to the adhesive sheet base material 5 via an adhesive, and then the adhesive sheet base material and the adhesive layer are laminated together. The above-mentioned lid material can be produced by carving a half-blanket line through the three layers of , and the release layer.

In the lid material of the present invention, the printing layer may be provided not only on the upper surface but also on the lower surface of the adhesive sheet base.

Furthermore, printing may be applied to the surface of the lid base material so that when the adhesive sheet is removed, another pattern appears.

Furthermore, the bottom surface of the lid base material on which the adhesive layer is applied may also be printed so that when the lid material is removed from the container, a pattern will appear on the back surface.

The lid material shown in the second figure is a lid material provided with a printed layer as described above, and 8.8', 9 and 10 indicate the printed layers.

The person who purchased the contents packaged in the above-mentioned container peels off the half-cut adhesive sheet 12 from the three sides of the partially applied release layer as shown by the dotted line in FIG.
It can be used as a patch or other toy.

On the other hand, the remaining lid material has an explanatory text printed on it through the release layer 3, or when the lid material is opened, a lottery ticket or the like is printed on the inner surface through the adhesive layer 2, which can be used to promote various products. It is effective as a sales container aimed at effectiveness.

Next, the present invention will be specifically explained with reference to Examples.

Example material composition Printed 7 piece art 79.1 g/rrl/adhesive 29/d
/Printing/High quality 523y/d/PE20P/A112P/
AC/Print/AC/PE20/A/PR2oP(PR
refers to hot melt adhesive) Adhesive: 100% solid heat melt adhesive 209/1r
i (Kanebo NSC HD-02) Release layer: Silicon 2
f/r! l (Shin-Etsu Chemical Industries KS772ypl-4) Adhesive Layer Hot Melt Adhesive 20P (Hirodyne Industries 7514) After polyethylene-sided high-quality paper and A1, print and coat the release layer on the high-quality surface by gravure printing, and at the same time I also printed it on the A1 side in register.

Next, the A1 side was coated with AC, PE, and hot-melt adhesive, respectively, and the piece of art paper and the high-quality side were bonded together via the adhesive.

After that, printing was applied to the art surface of the piece in accordance with the release layer, and after half-cutting, new characters and punching were performed to obtain a lid material.

This lid material was heat-sealed to the opening of the expanded polystyrene container containing the contents.

The new character has become an extremely easy-to-use container with no adhesive stickers coming off during the cutting process, sealing with the container, or distribution stage as a sales container, and no adhesive oozing from the cross section.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the lid material of the present invention, and FIG. 2 is a cross-sectional view of a container sealed with the lid material. 1... Lid base material, 2... Adhesive layer, 3.
...Release layer, 4...Adhesive layer, 5...
... Adhesive sheet base material, 7 ... Half-drawn line, 8.8
', 9. 10...printing layer, 11...
・Lid material, 12... Adhesive sheet, 13...
・Container, 14...Contents.

Claims (1)

[Scope of utility model registration request] An adhesive layer capable of sealing with the container is provided on one surface of the lid base material, and a release layer is partially provided on the other surface of the lid base material,
An adhesive layer is provided on the surface of the lid base material provided with the release layer, and an adhesive sheet base material is laminated on the adhesive layer.Three layers of the adhesive sheet base material, the adhesive layer, and the release layer are provided. A lid material with a half-outline carved through it.