JPS6313177Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to an edible film package.

This edible film is used, for example, to enhance the decorative effect by attaching a suitable pattern and placing it on confectionery with high water activity such as ice cream, pudding, or hot cakes.

Generally, this edible film itself is hygroscopic, and when it absorbs moisture, its strength weakens, and it also has many problems such as curling when cut into a size suitable for use, and there are various problems in the form in which it is supplied to consumers as a product. It was hot.

This invention was made in view of the above circumstances, and the purpose is to provide an edible film package that is free from problems due to moisture absorption and is extremely easy to handle for consumers.

That is, this invention has at least a heat-sealable plastic film layer on the surface, an edible film coated and adhered to the surface of the plastic film layer, and a coating with the edible film.
The present invention provides an edible film package comprising a heat-sealable moisture-proof film heat-sealed to the plastic film layer at its outer periphery in a sealed manner.

This invention will be explained below with reference to a specific example shown in FIGS. 1 and 2.

FIG. 1 is a cross-sectional view of an edible film package according to the present invention, in which the upper surface of a base material 1 made of heat-sealable plastic film has a desired shape, for example, a circular shape having a tab 2a as shown in FIG. The edible film 2 is bonded with appropriate adhesive strength as described below. Furthermore, a moisture-proof film 3 that can be heat-sealed is polymerized on the base material 1 so as to cover and seal the edible film 2. It is sealed.

In the present invention, the substrate coated with the edible film layer may be a heat-sealable plastic film alone, or may be a heat-sealable plastic film laminated on another suitable sheet. The heat-sealable plastic film layer may be surface treated to improve its adhesive properties by surface treatment such as corona discharge treatment (for example in the range of 36-38 dyn/cm) on the interface with the edible film layer. Moreover, this plastic film layer is preferably selected to be able to withstand drying at about 80°C. A common example of this plastic film layer is a thermoplastic, such as polyolefin.

The material of the edible film layer is not particularly limited, and any known edible material capable of forming a film can be used as appropriate. A specific example thereof is a pullulan aqueous solution. The adhesive strength between the heat-sealable plastic film layer and the edible film layer is such that it will not peel off during the half-cutting process and the process of peeling off the edible film from unnecessary parts, and is suitable for use by consumers. Sometimes it can be easily peeled off, specifically, when peeling a 15mm width at 90°, the peel strength is 5 to 5.
About 10g is preferable. Such peel strength can be adjusted by the degree of surface treatment such as corona discharge treatment, appropriate material selection of the plastic film or edible film, drying conditions, etc.

In this specification, half punching refers to the depth at which the edible film that is in close contact with the plastic film constituting the base material is completely punched out by the punching blade, and the base material is not punched out in order to ensure moisture resistance.
For example, the blade should stop at less than half the thickness of the plastic film layer, although it also depends on the thickness of the plastic film layer.

Alternatively, after coating the heat-sealable plastic layer with an edible film layer, edible ink may be used to print appropriate designs, pattern letters, etc. on the surface of the edible film to enhance the aesthetic appearance. . Furthermore, by adjusting the sealing strength through the combination of the base material and the moisture-proof film, it is also possible to create a structure in which the encapsulated edible film layer can be easily taken out.

For example, such film combinations include stretched polypropylene film/unstretched polypropylene film, stretched or unstretched polypropylene film/polyethylene film, polyethylene film/ethylene-vinyl acetate copolymer film, and the like.

According to this invention, the edible film can be provided to consumers in a state in which hygiene and moisture resistance are maintained well, and use and handling are significantly simplified.

Furthermore, it is possible to easily decorate confectionery with high water activity such as pudding and ice cream, or other foods, and has a remarkable effect of improving the aesthetic appearance of the foods.

Example An unstretched polypropylene film (100μ thick) was used as a base material, coated with a 25% pullulan aqueous solution as an edible film stock solution using a comma coater, and then dried at 60° to 70°C to a thickness of 20μ.
An edible film was formed. The adhesive surface of this unstretched polypropylene film to the edible film was previously treated with a corona discharge treatment (36 dyn/cm), and the pullulan aqueous solution contained 0.001 to 0.005% by weight of Shugar ester (based on pullulan) to adjust the peelability. )
The one added was used. As a result, the adhesive strength between the base material and the edible film was approximately 7 g/15 mm width and 90°.

Next, the edible film coated on this base material was cut into 140 mm width parallel to the longitudinal direction of the film, and edible ink (RioFresh, Red
F550, trade name, manufactured by Toyo Ink Mfg. Co., Ltd., ink viscosity: Zahnkup #3, 27 seconds (25°C)) was used to print a character pattern using the flexographic method.
After printing, half of the film was cut into a circle with a diameter of 40 mm using a rotary cutter, and the excess edible film was rolled up. During this half-cutting process, the cutter blade should be inserted into the base material.
Adjustment was made so that it penetrated by about 40 μm. Next, a laminate film of stretched polypropylene film (20 μm)/unstretched polypropylene film (25 μm) was superimposed on the remaining edible film as a covering material (or lid material), and then the laminate film was heated to 5 mm using a heated roller.
The product was heat-sealed along the width and cut into 60 mm square pieces along the seal line.

A 60 mm square product was obtained by processing in the same manner as in the above example except that unstretched polypropylene/woodfree paper (64 g/m ² ) was used instead of the unstretched polypropylene film as the base material in the above example. In this case, it was easy to distinguish between the base material and the pullulan film, the red color of the ink was clear, and a beautiful product was obtained.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an edible film package according to an embodiment of the present invention, and FIG. 2 is a plan view thereof. In the figure, 1... base material, 2... edible film, 2a
...Knob piece, 3...Moisture-proof film, 4...Outer peripheral portion.

Claims (1)

[Claims for Utility Model Registration] (1) At least a heat-sealable plastic film layer on the surface, an edible film coated and adhered to the surface of the plastic film layer, and the edible film is covered and sealed. and a heat-sealable moisture-proof film heat-sealed to the plastic film layer at its outer periphery. (2) Utility model registration claim 1, in which the plastic film layer and the edible film are bonded to each other with a width of 5 to 10 g/15 mm and a peel strength of 90 degrees.
Packaging as described in section. (3) The package according to claim 1, wherein the edible film has a tab piece. (4) The package according to claim 1, wherein the edible film has a printed layer on the top surface. (5) The package according to claim 1, wherein the adhesive surface of the plastic film layer to the edible film is surface-treated to improve adhesiveness. (6) The package according to claim 5, wherein the surface treatment is corona discharge treatment. (7) The package according to claim 1, wherein the plastic film layer is a polyolefin layer. (8) The package according to claim 1, wherein the plastic film layer is laminated on a sheet made of another material.