JPH0151338B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an edible film package in which an edible film laminated on a base material is sealed and packaged. The present invention relates to a method for manufacturing an edible film package in which edible film layers laminated with high strength are sealed and packaged.

The edible film of this package can be 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. Ru.

The edible film used in this package is generally hygroscopic, and when it absorbs moisture, its strength weakens, and when it is cut into a size suitable for use, it curls. There was a problem.

This invention was made in view of the above circumstances, and an object thereof is to provide a method for manufacturing an edible film laminate that is free from problems such as moisture absorption and is extremely easy to handle for consumers. do.

That is, this invention applies a solution prepared by adjusting the surface of the substrate and/or edible material so as to have a peel strength of 5 to 10 g/15 mm to a base material such as a plastic film, and dries the edible film laminate to a predetermined shape. After half-cutting into the shape of the unit to be used and peeling off the unnecessary part of the edible film on the outside of the shape, the remaining edible film layer is covered with a heat-sealable moisture-proof film, and each remaining edible film layer is then covered with a heat-sealable moisture-proof film. The present invention provides a method for producing an edible film package by heat sealing the outer periphery of the shape.

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 edible film peeling process of unnecessary parts, and the adhesive strength is such that it will not be peeled off during the half-cutting process and the edible film peeling process of unnecessary parts, and the adhesive strength is such that it is not peeled off during the half-cutting process and the edible film peeling process of unnecessary parts, and is suitable for use by consumers. Sometimes it can be easily peeled off, specifically, it has a peel strength of 5 to 5 when peeled at 90° with a width of 15 mm.
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.

As the moisture-proof film, a film having excellent moisture-proof properties is used alone or in a layered state with other materials. This moisture-proof film needs to be made of a material that can be heat-sealed to the base material.

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 can be used to print appropriate designs, patterns, characters, etc. on the surface of the edible film to enhance the aesthetic appearance. good.

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

Furthermore, the method of the present invention has the advantage that all steps can be performed continuously.

Example Using an unstretched polypropylene film (100μ thick) as a base material, coat it with a 25% pullulan aqueous solution as an edible film stock solution using a comma coater, and then dry at 60° to 70°C to a thickness of 20 μm.
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)) Character designs were printed using the flexographic method.
After printing, a circular cutter with a diameter of 40 mm was cut in half using a rotary cutter, and the excess edible film was rolled up and removed. The cutter blade during this half-cutting was adjusted so that it would dig into the base material by approximately 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 heat-sealed with a heating roller to a width of 5 mm. 60 along this seal line
The product was cut into mm square pieces.

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.

Claims (1)

[Claims] 1 Peel strength 5 for base materials such as plastic films
A solution prepared by adjusting the base material surface and/or edible material so as to have a thickness of ~10 g/15 mm is applied, dried, and the obtained edible film laminate is cut in half into a predetermined usage unit shape. After removing unnecessary parts of the edible film, the remaining edible film layer is covered with a heat-sealable moisture-proof film, and the outer periphery of each remaining shape is further heat-sealed. A method for producing an edible film package.