JPH11155499A - Production of edible film and device for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing an edible film, capable of producing the edible film in good productivity and at a low cost, and to provide a device for producing the film. SOLUTION: This method for producing an edible film comprises a process for spraying 7 a raw material liquid 11 for producing the edible film F on release paper 28, a process for subjecting the sprayed liquid to a natural drying treatment or an air-blasting drying treatment 20 at ordinary temperature to form the dried product of the raw material liquid 11 on the release paper 28, and a process for removing the release paper 28. The device for producing the edible paper is manufactured by disposing a spray nozzle 7 for spraying the raw material liquid for producing the edible film F on a carrying route for carrying release paper, and disposing a drying means 20 for subjecting the raw material liquid sprayed on the release paper at a prescribed position of the carrying route in the carrying direction to the natural drying treatment or the air-blasting drying treatment at ordinary temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for producing an edible film, and more particularly, to a method for obtaining an edible film by spraying a raw material liquid and a production apparatus used for carrying out the method.

[0002]

2. Description of the Related Art Conventionally, an edible film is produced by applying a raw material liquid on a release paper by silk printing and drying it. For this raw material liquid, a composition mainly composed of flour, corn starch and sugar in water is used.

[0003]

However, the production of an edible film by silk printing requires a lot of trouble and has a problem of low productivity.

A first object of the present invention is to solve the above-mentioned disadvantages of the conventional production method, and to provide a method for producing an edible film which can be produced with good productivity and at low cost. It is in.

Another object of the present invention is to provide an edible film manufacturing apparatus suitable for implementing the edible film manufacturing method of the first object.

[0006]

In order to solve the above-mentioned first problem, a first aspect of the present invention is to spray a raw material liquid for forming an edible film onto release paper, and air-dry or blow at room temperature. Forming a dried product of the raw material liquid on the release paper by drying, and removing the release paper.

According to the first aspect of the present invention, since the supply of the raw material liquid onto the release paper is performed by spraying, the supply of the raw material liquid to the release paper is easy. The raw material liquid of the sprayed release paper is dried to be a dried product, that is, an edible film. Drying is performed by natural drying or blast drying at normal temperature. The release paper is peeled off to obtain an edible film. According to the present invention, an edible film can be obtained by a simple process.

According to a second aspect of the present invention, a spray nozzle for spraying a raw material liquid for forming an edible film is provided on a transport path for transporting a release paper; At a predetermined position in the transport direction of the transport path, a drying means for drying the sprayed raw material liquid on the release paper by natural drying or normal temperature blast drying is provided.

According to the second aspect of the present invention, the raw material liquid is sprayed onto the release paper from the spray nozzle. The raw material liquid for the release paper is dried by a drying means to be a film-like dried product.
Drying is performed by a natural drying device or a blast drying device at normal temperature. According to the edible film manufacturing apparatus, an edible film attached to the release paper can be obtained.
In claims 1 and 2, "normal temperature" includes room temperature and outside temperature, and release paper means a releasable base material, paper, sheet and synthetic resin plate, metal plate having good releasability. And the like.

[0010]

FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIG. First, a manufacturing apparatus for obtaining the edible film of the present embodiment will be described. FIG. 1 schematically shows an edible film manufacturing apparatus 1. The manufacturing apparatus 1 includes a conveyor 2 for conveying a release paper 28, spray nozzles 7, 7 installed at a predetermined upper position in front of the conveyor 2 (the left side of the conveying path 3 in FIG. 1), The drying means 20 installed in the vicinity of the nozzles 7 and 7 (the right side of the transport path 3 in FIG. 1) is mainly used.

As shown in FIG. 1, the conveyor 2 has an endless belt mounted between a driving roller 4 and a driven roller 5, and has a long length supported by a supporting roller 6 at an appropriate position. The upper side of the belt supported horizontally is the transport path 3. The transport path 3 is transported in a predetermined transport direction (the direction of the arrow on the upper side conveyor in FIG. 1).

Two spray nozzles 7, 7 are provided at a predetermined interval, and each spray nozzle 7, 7 is
3 and 12 are connected to the raw material tank 8. The liquid feed pipe 13 is provided with a liquid feed pump 15, a check valve 13A, and a filter 14.

As shown in FIG.
Is disposed between the check valve 13A of the liquid feed pipe 13 and the spray nozzle 7. The check valve 13A is a filter 1 for the raw material liquid 11.
It functions to stop returning to the side 4 (the raw material tank 8 side).
The liquid feed pump 15 is of an air drive type, and the piston 15A is repeatedly reciprocated by an upper drive unit.
A constant raw material liquid 11 is intermittently sent to the spray nozzle 7 by the operation of the piston 15A.

The structure of the spray nozzle 7 is formed so that the raw material liquid 11 supplied to the side by the liquid feed pipe 13 is sprayed (misted) through the internal orifice 7A from the mouth 7B at the lower end. ing. As shown in FIGS. 3A and 3B, the center of the lower end surface of the spray nozzle 7 is formed as a concave portion 7C in which the width direction of the conveyor 3 is concave. A directed linear mouth 7B is formed. An adjusting screw 7D is inserted into the upper part of the spray nozzle 7, and by adjusting the head, the shaft end adjusts the flow path in the spray nozzle 7 so that the amount of the raw material liquid 11 sprayed from the mouth 7B is reduced. Adjusted.

As shown in FIG. 3A, a laterally movable film 7F for vertically blocking the space 7E is provided in the upper space 7E in the spray nozzle 7. Movable membrane 7F
An air feed pipe 18 is connected to the upper space 7E partitioned by the above, and when the piston 15A of the liquid feed pump 15 operates, the air pressure corresponding to the pressure of the raw material liquid 11 sent to the spray nozzle 7 is increased. Is supplied to the space 7E of
During the suspension of the supply of the raw material liquid 11 at which the piston 15A returns, the air pressure is further increased, the movable film 7F closes the gap of the flow path in the spray nozzle 7, and the raw material liquid 11 from the opening 7B during the supply stop. It is designed to prevent dripping.

Since the mouth 7B of the spray nozzle 7 is provided in the recess 7C facing the width direction of the conveying path 3, FIG.
As shown in the figure, the raw material liquid 11 is sprayed in the width direction,
The entire width of the release paper 28 on the transport path 3 is sprayed. The structure of the spray nozzles 7, 7 is not limited to the one in the present embodiment, but may be another structure, or a normal air gun (spray gun) for spraying paint may be used. .

As shown in FIG. 1, a raw material tank 8 stores a raw material liquid 11 for forming an edible film. In the upper part of the raw material tank 8, a supply pipe 9 for the raw material liquid 11 and an air supply pipe 1 are provided.
0 is provided. The open / close valve 10A of the air supply pipe 10 is provided with a pressure gauge. The liquid feed pipe 12 is connected to the bottom of the raw material tank 11, and the liquid feed pipe 12 that has passed through the open / close valve 12A branches into the liquid feed pipes 13 and 13 and is guided to the spray nozzles 7 and 7. The open / close valve 12A is always closed. Filters 14, check valves 13A, and liquid feed pumps 15, 15 are connected to the branched liquid feed pipes 13, 13, respectively.
Is interposed. Foreign matter and solid matter of the raw material liquid 11 are removed by the filter 14. The raw material liquid 11 in the raw material tank 8 is intermittently sent to the spray nozzles 7, 7 by the liquid feed pumps 15, 15.

On the other hand, a compressor 17 is installed near the spray nozzles 7, 7, and high-pressure air is supplied between the compressor 17 and each of the spray nozzles 7, 7 in a space above the spray nozzles 7, 7. Pneumatic lines 18, 18 for feeding in connection with movement are connected. Air pipe 1
Opening / closing valves 18A, 18A are interposed in 8, 18, respectively. In addition, both open / close valves 18A are always closed.

The drying means 20 is formed above the transport path 3 without obstructing the transport of the release paper 28. In the case of this embodiment, as shown in FIG. 1, a blower fan 22 is attached to an upper portion of a cover 21 that covers a predetermined range. The blower at room temperature by the blower fan 22 is applied to the sprayed raw material liquid 11 of the release paper 28 sent through the transport path 3.

A smoothing roller 24 for pressing the surface against the semi-dried material 11A of the raw material liquid 11 is disposed in the transport path 3 at an intermediate portion of the drying means 20. Run-up roller 2
4 is a pair of upper and lower rollers 25, 2 sandwiching the belt of the transport path 3.
Consists of six. Note that the leveling roller 24 may be omitted.

Next, the operation of the production apparatus 1 and the method of producing the edible film will be described. Now, the driving roller 4 of the conveyor 2 is driven, and the belt is formed as the conveying path 3 conveyed in the direction of the arrow in FIG.
3 is driven to supply air at room temperature. In addition, transport path 3
Of the room temperature is driven. On the other hand, the raw material tank 8 is in a state where the raw material liquid 11 at room temperature (may be heated in advance) is stored. The raw material liquid 11 is, for example, a paste-like liquid having the composition shown in Table 1.

[0022] The raw material solution was adjusted to pH 4.3 to 4.5 with citric acid.

An opening / closing valve 10A is opened to the raw material tank 8 storing the raw material liquid 11, air is fed from the air supply pipe 10, and a pressurized state of a predetermined pressure is maintained.

Next, the open / close valve 12A of the liquid feed pipe 12 of the raw material tank 8 is opened, the liquid feed pump 15 is driven, and the open / close valve 18 of the compressor 17 is opened to operate the compressor 17. Then, the raw material liquid 11 is sprayed in a mist form from the spray nozzles 7,7. Also,
Prior to the spraying of the raw material liquid 11, the release paper 28 cut and cut into a predetermined size is sequentially and continuously supplied to the transport path 3 from the front of the transport path 3. The supply of the release paper 28 can be performed manually or by a dedicated device.

The release paper 28 has a structure in which the surface of a sheet of a paper base material is coated with silicon, and a polyethylene film is bonded to the back surface.

The raw material liquid 11 is sprayed onto the release paper 28 shown in FIG. 4 from the first spray nozzle 7A in the form of mist (see the release paper 28 in FIGS. 2, 3 and 5). Next, the raw material liquid 11 is similarly sprayed from the second spray nozzle 7 (see the release paper 28 in FIG. 6). In the present embodiment, since the raw material liquid 11 is sprayed in two times, it is easier to spray than the case where the high-concentration raw material liquid 11 is sprayed from one spray nozzle 7, but the raw material liquid 11 is sprayed from one spray nozzle 7. A predetermined amount may be sprayed. Since the movable film 7F of the spray nozzles 7 and 7 is operated, no dripping from the mouth 7B occurs while the raw material liquid 11 is not sprayed.

The release paper 28 of FIG. 6 sprayed with the raw material liquid 11 is sent to the drying means (drying step) 20 shown in FIG.
The sprayed raw material liquid 11 is blown and dried. Next, the semi-dried material 11A on the release paper 28 that has been subjected to the air drying process is subjected to the pressing process of the leveling roller 24. That is, the semi-dried product 11A is inserted between the pair of rollers 25 and 26 together with the release paper 28, and the surface of the semi-dried product 11A is smoothed (see the release paper in FIGS. 7 and 8).

The semi-dried material 11A on the release paper 28 which has passed through the leveling roller 24 is further dried by the drying means 20 to form an edible film F having a smooth surface. This edible film F
8, is attached to the release paper 28, but can be easily peeled off from the release paper 28 to obtain the edible film F (see the edible film F in FIG. 9).

Thus, the edible film F is formed by the manufacturing apparatus 1 of the present embodiment. Since the pH of the raw material liquid 11 in this embodiment is adjusted to 4.3 to 4.5, the obtained edible film F hardly grows mold and has good storage stability. This edible film F can be, for example, as shown in FIG. 10 (A), attached to the upper surface of a cake 40 in which a cream 42 is applied to a sponge dough 41, so that the cake 40 can be easily cut with a knife.

FIG. 10 (A) shows a step of applying the edible film F cut into a circular shape in advance on the upper surface of the cake 40, and FIG. 10 (B) shows a cake piece 40A cut with a knife. Is shown. Although the edible film F is overlaid on the upper surface of the cake piece 40A, when eating the cake piece 40A, no problem is felt.

In the manufacturing apparatus 1 described above, the release paper 2
The raw material liquid 11 sprayed on the drying means 8
0 was dried to obtain an edible film F.
Drying 1 may be natural drying.

That is, the manufacturing apparatus 1A shown in FIG. 11 has a structure in which the drying means 20 of the above-described manufacturing apparatus 1 is removed from the transport path 3, and the release paper 28 sprayed with the raw material liquid 11 is located rearward outside the transport path 3. It comprises a step of transferring the sheets one by one to the shelf 52 of the provided drying shelf 50 and naturally drying them at room temperature. In addition,
In the manufacturing apparatus 1A of FIG. 11, the same members as those of the manufacturing apparatus 1A are denoted by the same reference numerals, and description thereof will be omitted.

As shown in FIG. 12, the drying shelf 50 is provided with a plurality of shelves 52 having good air permeability with respect to the support member 51 in the vertical direction. Paper 28 is placed on each. The release paper 28 sprayed with the raw material liquid 11 is left on the shelf 52,
After being dried, the edible film F is separated from the release paper 28 as shown in FIG.

The raw material liquid 11 is not limited to the composition shown in Table 1, but may be in the composition range shown in Table 2.

[0035]

The raw material liquid 11 having the composition shown in Table 2 is in the form of a paste, but can be easily sprayed from the spray nozzles 7,7. A dried product of the raw material liquid 11 having this composition, that is, the edible film F has a better releasability from the release paper 28 than a conventional edible film formed by screen printing. This is due to the components cellulose and sugar powder. In the composition of Table 2, as the coloring agent, an appropriate dye such as red, green, and yellow can be used. Dyes can be selected and used depending on the use of the edible film.

The thickness of the edible film is 0.3 to 0.02 m
The thickness is mainly about m, but it can be appropriately thick depending on the application.

[0038]

According to the production method of the first aspect of the present invention, an edible film can be obtained with good productivity and at low cost because drying is performed without heating.

According to the manufacturing apparatus of the second aspect of the present invention, an edible film can be obtained with good productivity and at low cost, and is an apparatus suitable for implementing the manufacturing method of the first aspect of the present invention.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an apparatus for manufacturing an edible film according to an embodiment of the present invention.

FIG. 2 is a plan view of a conveyance path mainly including a spray nozzle.

FIG. 3A is a partially sectional side view of a conveyance path mainly including a spray nozzle, and FIG. 3B is a bottom view of the spray nozzle.

FIG. 4 is a front view of a release paper.

FIG. 5 is a front view of a release paper sprayed with a raw material liquid by a first spray nozzle.

FIG. 6 is a front view of a release paper sprayed with a raw material liquid by a second spray nozzle.

FIG. 7 is a cross-sectional view of a semi-dried product and a release paper that have been processed by a leveling roller.

FIG. 8 is a front view of a release paper having an edible film formed thereon.

FIG. 9 is a front view of the edible film.

FIG. 10 is a diagram showing the state of use of the edible film, wherein (A)
Shows a process diagram of covering an edible film on the cream surface on the upper surface of the cake body, and (B) shows a shape diagram of a cake piece cut to a predetermined size.

FIG. 11 is a schematic view showing a main part of an edible film manufacturing apparatus according to another embodiment of the present invention.

FIG. 12 is a perspective view of a drying shelf.

FIG. 13 is a process chart of obtaining an edible film separated from release paper.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1A Manufacturing apparatus 2 Transport conveyor 3 Transport path 7 Spray nozzle 8 Raw material tank 11 Raw material liquid 11A Semi-dried product 12, 13 Liquid feed pipe 17 Air pump 18 Air feed pipe 20 Drying means 23 Ventilation fan 28 Release paper F Edible film 50 Drying shelf

Claims (2)

[Claims] 1. A method of spraying a raw material liquid for forming an edible film onto release paper, forming a dried product of the raw material liquid on the release paper by natural drying or blast drying at room temperature, and removing the release paper. A method for producing an edible film, comprising: 2. A spray nozzle for spraying a raw material liquid for forming an edible film is provided on a transport path for transporting the release paper, and a spray nozzle on the sprayed release paper is provided at a predetermined position in the transport direction of the transport path. An apparatus for producing an edible film, comprising a drying means for drying a raw material liquid by natural drying or blast drying at room temperature.