JP4299615B2 - Semi-baked confectionery packaging - Google Patents

Description

  The present invention relates to a package suitable for preserving half-baked confectionery such as chocolate confectionery and cake confectionery having high water activity, and more particularly to a package containing a plurality of half-baked confectionery grain packages in a paper container.

  As a packaging form that accommodates a plurality of small chocolate confectionery, cake confectionery, etc., each confectionery is made into a grain package by pillow wrapping etc., and this grain package is contained in a plurality of boxes in a paper container such as a box Packaging is known. According to this, display property, aesthetics by printing, ease of opening, etc. can be imparted by the paper container, and at the same time, the confectionery becomes a grain package after opening the paper container. It can be handled, and has the advantage that each confectionery has excellent handleability and storage stability.

  On the other hand, in chocolate confectionery, cake confectionery, etc., so-called half-life confectionery, which has a higher water activity than conventional confectionery, is marketed as a product and gaining popularity. Since such a half-baked confectionery has a high water activity of 0.60 to 0.90, the product is more susceptible to mold than a confectionery having a conventional water activity of less than 0.60. As one method for preventing this mold generation, ethanol is added to confectionery using the bacteriostatic action of ethanol in the air.

  The addition of ethanol may be performed as addition to a confectionery such as an aqueous ethanol solution or may be added as an ethanol gas to the confectionery packaging. For example, in Non-Patent Document 1 below, food is packaged, and an ethanol generator is enclosed in the package to keep the ethanol concentration in the bag constant. It is disclosed that most mold generation can be prevented by maintaining the concentration at 0.3 to 0.5% by volume.

  In addition, it is also conventionally performed to add alcohol to the packaging container itself for the purpose of sterilization. For example, in Patent Document 1 below, a packaging material is sterilized with a sterilizing liquid and then irradiated with ultraviolet rays. It is disclosed that ozone water and an alcohol solution are used in combination as a sterilizing solution, and Patent Document 2 discloses that a bottomed cylindrical carton is sterilized by an ethanol sterilizing unit as a sterilizing unit of an aseptic packaging apparatus. Patent Document 3 discloses a sterilization method in which ethanol is sprayed on a sterilization container in the form of a mist and then sprayed in a heated state of hydrogen peroxide.

Further, Patent Document 4 below discloses an antibacterial food packaging material obtained by spraying a solution obtained by dissolving ε-polylysine in alcohol or an alcohol aqueous solution on a packaging material. The case is illustrated.
“Food Packaging Basic Course”, “Preservation of Food by Alcohol Evaporating Agent”, [online], [searched July 7, 2003], Internet <URL: http://www2s.biglobe.ne.jp/~tcfk /unti.htm> JP-A-5-178334 Japanese Patent Laid-Open No. 3-162230 JP 63-110122 A JP-A-8-318974

  Each confectionery as described above is used as a grain wrapping body, and a double wrapping form in which a plurality of the grain wrapping bodies are accommodated in a paper container such as a box shape is applied to the above-mentioned semi-raw confectionery to which ethanol is added. In such a case, there were the following problems.

  That is, as the above confectionery grain package, pillow packaging or the like is preferably used from the viewpoint of openability and packaging cost. However, in pillow packaging, the filling and packaging speed is extremely fast, A seal failure may occur in the part. Further, pinholes may be generated on the film surface during the process after the pillow packaging is completed or during transportation. In these cases, since ethanol gradually evaporates from the sealing failure and pinhole, the effective air ethanol concentration is 0.3-0. 5 volume% cannot be maintained. Therefore, there is a problem that mold may be generated in the half-baked confectionery.

  In this case, in order to prevent volatilization of ethanol outside the system, it is conceivable to wrap the outside of the paper container with a film with a small amount of ethanol permeation, and in this case, the inner paper container absorbs ethanol. Therefore, the ethanol concentration in the overwrapping film and in the grain packaging cannot be maintained at the above 0.3 to 0.5% by volume.

  Accordingly, an object of the present invention is to provide a package that can prevent mold from being generated in a semi-confectionery and maintain the preservability of the semi-confectionery for a long period of time even when a seal failure or pinhole occurs in the particle package of the semi-confectionery The purpose is to provide a body.

  That is, the half confectionery package of the present invention has a water activity of 0.60 to 0.90 and a grain wrap formed by packaging a half confectionery to which ethanol is added with a film, and the plurality of the grain wraps. A semi-fresh confectionery packaging body comprising a paper container for containing a body and a film having a small amount of ethanol permeation for wrapping and packaging the entire paper container, wherein the paper container is impregnated with ethanol .

  According to the half-baked confectionery packaging of the present invention, since the paper container is pre-impregnated with ethanol, the ethanol concentration in the overwrapping film is mild even if the sealing is poor or pinholes occur in the grain packaging. It is maintained at such a level that it exhibits fungicidal action, thereby preventing a decrease in the ethanol concentration in the grain package and preventing mold from occurring in the half-baked confectionery in the grain package where a seal failure or pinhole has occurred. Can be prevented.

  Moreover, the ethanol release effect from the paper container can be obtained by impregnating the paper container with ethanol in advance. Therefore, a packaging member such as an alcohol generator is unnecessary, and the packaging cost can be reduced.

In addition, the amount of ethanol permeation means that the ethanol permeability at 30 ° C. is 5 g / m ² · day or less.

  In this invention, it is preferable that the air ethanol density | concentration in 20 degreeC in the said overwrapping packaging film is 0.3 volume% or more. According to this, generation | occurrence | production of most types of mold | fungi can be suppressed.

  Moreover, in this invention, it is preferable that the said grain package is a pillow package. According to this, although the pillow packaging body is likely to cause a sealing failure, the packaging body of the present invention is particularly suitable because the filling and packaging speed is high.

  According to the present invention, even when a paper container is present in the overwrapping packaging film, the air ethanol concentration in the overwrapping packaging film can be maintained. Therefore, this invention can suppress generation | occurrence | production of a mold | mold over a long period of time in the paper container package which used the half confectionery with high water activity as a grain package, and accommodated this grain package.

  Hereinafter, the half confectionery package of the present invention will be described in detail with reference to the drawings. 1 to 3 show an embodiment of the half-sweet confectionery package of the present invention. FIG. 1 is a grain package in which a half-baked confectionery is pillow-packed, (A) a schematic view seen from the front side, (B) a schematic view seen from the back side, and FIG. 2 contains a plurality of grain packs of FIG. FIG. 3 is a schematic view showing a state where the paper container is opened, and FIG. 3 is a schematic view showing a state where the entire paper container of FIG.

  As shown in FIGS. 1 (A) and 1 (B), first, the half-baked confectionery 10 used in the present invention is pillow-wrapped by a film 20 to form a grain package 30.

  The half confectionery 10 has a water activity (Aw) of 0.60 to 0.90. If the water activity is less than 0.6, it is difficult for mold to occur, so the addition of ethanol is unnecessary. Moreover, when water activity exceeds 0.9, it is not suitable for distribution of general confectionery. Specific examples of such a half-baked confectionery include bushes, macaroons, madeleines, ganaches, marshmallows, fondants, marzipan, gummi, jelly and the like.

  Ethanol is added to the semi-confectionery 10. Thereby, when there is no sealing failure and pinhole as will be described later in the grain package 30, and a film having a low ethanol permeability is used for the film 20, the ethanol concentration is maintained in the grain package 30 and mold is not generated. Occurrence can be prevented.

  As addition amount of ethanol, it is preferable that 0.5-5% is added by the mass% with respect to the half-boiled confectionery 10 whole. If the amount of ethanol added is less than 0.5%, the bacteriostatic effect is insufficient and the generation of mold cannot be sufficiently suppressed. In addition, the addition of ethanol may be kneaded into the half confectionery 10 or may be sprayed around the half confectionery 10.

  The grain wrapping body 30 is a pillow wrapping body in which the confectionery 10 is pillow-wrapped by the film 20. In FIG. 1, 21 is an upper and lower seal part (horizontal seal part), and 22 is a back seal part (vertical seal part).

  The film 20 may be a film having a small amount of ethanol permeation or may be an ethanol permeable film, and is not particularly limited, but is preferably a film having a small amount of ethanol permeation. A film having a small amount of ethanol permeation is preferable because the particle package 30 itself has an effect of preventing a decrease in ethanol concentration.

  As a film having a small amount of ethanol permeation used for such a film 20, for example, a film in which a base material film having a small amount of ethanol permeation and a heat-sealable sealant film are laminated in two or more layers, or the amount of ethanol permeation is small. A heat-sealable coextruded film can be used.

  Base films with a small amount of ethanol permeation include base films such as biaxially stretched polyester (PET), biaxially stretched polypropylene (OPP), unstretched polypropylene (CPP), and biaxially stretched nylon (ONY). As the barrier layer, a barrier film in which an aluminum vapor-deposited layer, a transparent vapor-deposited layer such as alumina or silica, a polyvinylidene chloride coat (K coat), an ethylene-vinyl alcohol copolymer (EVOH) coat or the like is used is used. it can. Although the thickness of the base film having a small amount of ethanol permeation can be selected as appropriate, it is preferably 5 to 30 μm.

Moreover, as a sealant film, conventionally well-known polyethylene (PE), unstretched polypropylene (CPP), ethylene-vinyl acetate copolymer (EVA), an ionomer, etc. can be used, and it is not specifically limited. Moreover, you may use an aluminum vapor deposition unstretched polypropylene (ALVMCPP) as a sealant film with little ethanol permeation | transmission amount, In this case, the above-mentioned base film does not need to have little ethanol permeation amount. In addition, it is preferable to use a CPP film among the above-mentioned sealant films because of high-speed filling suitability in confectionery packaging. Although the thickness of a sealant film can be selected suitably, it is preferable that it is 20-100 micrometers.
A coextruded OPP film that can be heat sealed may be used as the film 20.

  Pillow wrapping can be packaged by a conventionally known pillow wrapping machine, and both vertical and horizontal pillows can be used. In the present invention, the grain package is not limited to pillow packaging, and may be a two-side seal, a three-side seal, a four-side seal, or the like.

  Next, as shown in FIG. 2, the grain package 30 is accommodated in a box-shaped paper container 40. The state shown in FIG. 2 shows the opened state when the consumer takes out the product. A perforation 43 is formed from the upper surface to the front side of the paper container 40, and the opening lid is formed along the perforation 43. A state in which the opening 45 is formed by cutting 42 is shown. Therefore, in the accommodation process of the grain package 30 in the paper container 40, the perforation 43 is in an unopened state, and the grain package 30 is accommodated in a state where the side surface 41 side of the paper container 40 is opened.

  In the present invention, the paper container 40 is impregnated with ethanol.

As the amount of ethanol impregnated, 1 to ²⁰ g of ethanol is preferably impregnated per 1 m ^{2 of} the blank in which the paper container 40 is developed. Note that ethanol may be sprayed as an aqueous ethanol solution (ethanol + water).

  As a method for impregnating the paper container 40 with ethanol, ethanol may be sprayed in a blank state before assembling the paper container 40, and after assembling the paper container 40, spraying with the side 41 opened. Also good. In addition, when spraying after assembling the paper container 40, it is preferable to spray before putting the grain package 30 into.

  Next, after closing the accommodation opening on the side surface 41 side, as shown in FIG. 3, the entire paper container 40 is further pillow-wrapped with the overwrapping packaging film 50 to obtain a semi-confectionery wrapping body 60. 51 is an upper and lower seal part (horizontal seal part), 52 is a back seal part (vertical seal part).

The overwrapping film 50 is not particularly limited as long as it is a film having a small amount of ethanol permeation, but the ethanol permeability at 30 ° C. is preferably 5 g / m ² · day or less. If the ethanol permeability exceeds 5 g / m ² · day, ethanol is transmitted from the film 20 and the ethanol concentration in the grain package 30 cannot be maintained over a long period of time, which is not preferable.

  In addition, as the material of such an overwrapping film 50, a laminated film or the like, a heat-sealable coextruded OPP film, or the like can be used. It is preferable that it is a transparent film from the viewpoint of 40 visibility. For this reason, it is preferable that it is a barrier layer other than aluminum vapor deposition.

  By the packaging with the above-described overwrapping film 50, the ethanol impregnated in the paper container 40 has an equilibrium concentration in the overwrapping film 50 due to vapor pressure. This equilibrium concentration decreases with time according to the ethanol permeability of the overwrapping packaging film 50. The equilibrium concentration at this time is preferably 0.3% by volume or more (20 ° C.). When the ethanol concentration in the overwrapping film 50 is less than 0.3%, the bacteriostatic effect due to ethanol is insufficient, and mold is likely to be generated in the half-baked confectionery 10, which is not preferable.

  In the present invention, the overwrapping film 50 is not limited to pillow packaging, and may be a three-sided seal, wrapping packaging, shrink packaging, or the like. Moreover, it is preferable that the overwrapping film 50 is in a hermetically sealed form, but a sealing failure, a pinhole, or the like may occur as long as it does not hinder ethanol evaporation.

  The semi-sweet confectionery package 60 obtained by the above method has an ethanol concentration in the overwrapping packaging film 50 due to the ethanol impregnated in the paper container 40 even when a seal failure or pinhole occurs in the grain packaging 30. Since it can maintain, the fall of the ethanol density | concentration in the particle | grain package 30 which the seal | sticker defect and the pinhole produced can be prevented, and generation | occurrence | production of the mold | fungi to the half confectionery 10 can be suppressed over a long period of time.

  Hereinafter, the present invention will be described more specifically with reference to examples.

Example 1
A semi-sweet confectionery package 60 as shown in FIGS. 1 to 3 was manufactured by the following procedure.

  As semi-boiled confectionery 10, 4 g of confectionery (water activity 0.72) obtained by mixing 1 part of rum containing 40% alcohol with 10 parts of milk chocolate was used.

  This semi-raw confectionery 10 is 130 × 90 mm (upper and lower seal width 10 mm, back seal width 10 mm) using a film 20 made of a laminated film of PET (biaxially stretched polyester) 12 μm / ALVMCPP (aluminum-deposited unstretched polypropylene) 20 μm. After pillow packaging, a pinhole having a diameter of 0.5 mm was formed by piercing the needle.

Next, after spraying 0.5 g of the aqueous ethanol solution on a blank (blank area 620 cm ² ) before assembling the box-shaped paper container 40, the paper container is assembled (length 100 mm × width 135 mm × height 40 mm), One grain package with pinholes and 10 grain packages without pinholes were accommodated.

  Thereafter, the entire paper container 40 is pillow-wrapped at 370 × 230 mm (upper and lower seal width 15 mm, back seal width 10 mm) using a transparent vapor-deposited PET 12 μm / CPP 25 μm overwrapping packaging film 50. The body was manufactured. During pillow packaging, a 0.2 mm diameter sealing failure was formed in the heat seal part.

Example 2
A semi-raw confectionery package of Example 2 was produced in the same manner as Example 1 except that heat-sealable OPP 35 μm was used as the overwrapping film 50.

Comparative Example 1
A half confectionery package of Comparative Example 1 was produced in the same manner as Example 1 except that the aqueous ethanol solution was not sprayed onto the paper container 40.

Comparative Example 2
A half confectionery package of Comparative Example 2 was produced in the same manner as in Example 2 except that the aqueous ethanol solution was not sprayed onto the paper container 40.

Test Example Half-baked confectionery packages of Examples 1 and 2 and Comparative Examples 1 and 2 were stored at 20 ° C., and the change over time in the ethanol concentration in the overwrapping packaging film 50 was measured. The results are summarized in Table 1. The ethanol concentration in the overwrapping film 50 immediately after packaging was 33% (calculated value).

  The ethanol concentration was measured according to JIS gas chromatograph analysis general rule K-0114. The measurement column was HaySepA (manufactured by CHROMPACK), the carrier gas was He, and the detector was a heat conduction detector.

  From the results shown in Table 1, in the comparative example in which the paper container 40 was not sprayed with the aqueous ethanol solution, the ethanol concentration in the overwrapping film 50 was bacteriostatic compared to the example in which the aqueous ethanol solution was sprayed. It was less than the ethanol concentration of the grade which exhibits the effect to do. For this reason, it was considered that the airborne ethanol concentration in the grain package can be maintained at 0.3 to 0.5% by volume or more even when a seal failure or pinhole occurs in the grain package.

  The present invention is a package suitable for preserving half-baked confectionery such as chocolate confectionery and cake confectionery having high water activity, and is preferably used for a package in which a plurality of half-baked confectionery grain packages are housed in a paper container. It is done.

It is the grain package which carried out the pillow wrapping of the semi-sweet confectionery used for this invention, (A) The schematic diagram seen from the front side, (B) The schematic diagram seen from the back side. It is the schematic which shows the state which opened the paper container which accommodated several grain packaging bodies of FIG. It is the schematic which shows the state which wrapped and wrapped the paper container of FIG. 2 with the packaging film.

Explanation of symbols

10 Semi-baked confectionery 20 Film 21, 51 Vertical seal (horizontal seal)
22, 52 Back seal (vertical seal)
30 Grain packaging 40 Paper container 41 Side 42 Opening lid 43 Perforation 45 Opening 50 Upper packaging film 60 Semi-confectionery packaging

Claims (3)

Grain packaging body having a water activity of 0.60 to 0.90 and a half confectionery to which ethanol is added is packaged with a film, a paper container containing a plurality of the grain packaging bodies, and the paper container A semi-raw confectionery package comprising a film having an ethanol permeability of 5 g / m ² · day or less at 30 ° C. for covering and packaging the whole, wherein the paper container is impregnated with ethanol. Fresh confectionery packaging.   The semi-sweet confectionery package according to claim 1, wherein the ethanol concentration at 20 ° C in the overwrapping film is 0.3% by volume or more.   The half confectionery package according to claim 1 or 2, wherein the grain package is a pillow package.

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