JP2009090995A - Containerized beverage and its manufacturing method - Google Patents

Abstract

Provided a technique for producing a low-cost and lightweight container-containing beverage by attaching a heat-shrink label after filling a liquid at a high temperature of 70 ° C. or more into a light and non-heat-resistant plastic container at low cost. .
A method for producing a beverage containing a container, comprising filling a non-heat resistant plastic container with a liquid at a high temperature of 70 ° C. or higher and then attaching a heat shrink label to the outer periphery of the container to produce the beverage containing the container. The non-heat-resistant plastic container is preferably made of a non-heat-resistant plastic with a body portion having a crystallinity of less than 30%, and the non-heat-resistant plastic is more preferably polyethylene terephthalate.
[Selection] Figure 1

Description

  The present invention relates to a beverage in a container in which a plastic bottle such as a polyethylene terephthalate (hereinafter referred to as PET) bottle is filled with a beverage and a label made of a plastic film is attached, and a method for producing the same.

The technique disclosed in Patent Document 1 is proposed to perform shrinkage of a heat-shrinkable label at a low temperature in a short time in a container-filled beverage in which a plastic bottle is filled with a beverage and a heat-shrinkable label made of plastic film is attached. Has been.
Patent Document 1 discloses a polyester heat-shrinkable label in which a printing layer is provided on a polyester base film, and the average shrinkage rate of the label in the initial 3 seconds in 70 ° C. warm water is 3 to 10% / second. A polyester heat-shrink label is disclosed, preferably 5-10% / sec.
Japanese Patent Laid-Open No. 11-115133

  When a beverage is filled in a plus-chip bottle such as a PET bottle at a high temperature of 70 ° C. or higher, a heat-resistant plastic container having a crystallinity of 30% or more is used so that it can withstand deformation and strength reduction due to heat. However, this type of heat-resistant container has the disadvantages that it is bulky and expensive.

  On the other hand, as described in Patent Document 1, a non-heat resistant polyester container that is not filled at high temperature is equipped with a heat shrink label that can be mounted at a low temperature in a short time. There is no description about filling a liquid container at a high temperature of 70 ° C. or higher.

  The present invention has been made in view of the above circumstances, and is filled with a liquid at a high temperature of 70 ° C. or higher in a low-cost and lightweight non-heat resistant plastic container, and then a heat-shrink label is attached, so that a low-cost and lightweight container-containing beverage The purpose is to provide a technique for manufacturing the product.

In order to achieve the above-mentioned object, the present inventors have made extensive studies. As a result, even a low-cost and lightweight non-heat-resistant plastic container is mounted with a heat-shrink label after filling with liquid at a high temperature of 70 ° C. or higher. As a result, it was confirmed that a container strength having no practical problem could be achieved, and the present invention was completed.
That is, the present invention is a method for producing a beverage containing a container, wherein a non-heat-resistant plastic container is filled with a liquid at a high temperature of 70 ° C. or higher and then a heat-shrink label is attached to the outer periphery of the container to produce the beverage containing the container. I will provide a.

  In the method for producing a beverage in a container of the present invention, the non-heat resistant plastic container is preferably made of a non-heat resistant plastic having a body portion having a crystallinity of less than 30%.

  In the method for producing a packaged beverage of the present invention, the non-heat resistant plastic is preferably polyethylene terephthalate.

  The present invention also provides a packaged beverage produced by the above-described method for producing a packaged beverage according to the present invention.

  According to the present invention, a low-cost and lightweight container-containing beverage can be produced by attaching a heat-shrink label after filling a liquid at a high temperature of 70 ° C. or more into a low-cost and lightweight non-heat resistant plastic container. it can.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing an embodiment of a container-containing beverage according to the present invention. In the figure, reference numeral 1 denotes a container-containing beverage, 2 denotes a non-heat resistant container, 3 denotes a lid, 4 denotes a heat-shrink label, and 5 denotes It is liquid.

  The beverage 1 according to the present embodiment is filled with a liquid 5 at a high temperature of 70 ° C. or higher in a non-heat-resistant container 2 made of a non-heat-resistant plastic, and a lid 3 is screwed onto the container mouth and sealed. The heat-resistant container 2 is manufactured by attaching the heat shrink label 4 to the outer periphery.

In the beverage 1 with a container of this embodiment, it is preferable that a non-heat-resistant container consists of a non-heat-resistant plastic with the body part having a crystallinity of less than 30%. The non-heat resistant plastic is preferably PET.
The non-heat-resistant plastic constituting the non-heat-resistant container 2 is not limited to the present embodiment, and a non-heat-resistant plastic such as a polyolefin resin or a composite material of a polyolefin resin and polyvinyl alcohol is used. You can also.

  A plastic having a crystallinity of 30% or more has good heat resistance and is not included in the category of “non-heat resistant plastic” in the present invention. The plastic having a crystallinity of 30% or more increases in mass and costs when used as a container, compared to the non-heat resistant plastic used in the present invention.

  In the container-containing beverage 1 of the present embodiment, the heat-shrink label 4 can be appropriately selected from conventionally known heat-shrink labels and used, for example, polyester film, polystyrene film, polyolefin film, etc. A heat-shrink label in which a printing layer is provided on a film substrate can be used. The mounting method of the heat-shrink label 4 is not limited. For example, a cylindrical label having a diameter larger than that of the container body is placed on the outside of the non-heat-resistant container 2 after filling with liquid, and the label is heated to heat. The method of shrinking and attaching to the non-heat resistant container 2 is preferable.

In addition, in the container-containing beverage of the present invention, the shape of the non-heat resistant container is not limited to a cylindrical shape, and may be a rectangular tube shape.
Moreover, it does not specifically limit as a liquid with which the non-heat-resistant container 2 is filled, It can select suitably from the various drinks filled with high temperature of 70 degreeC or more.
Hereinafter, the effects of the present invention will be demonstrated by examples.

[Comparative Example 1]
As the non-heat-resistant plastic, Mitsui Chemicals, PET (trade name: SA135) was used, and a non-heat-resistant bottle having a capacity of 500 mL was prepared using a PET bottle manufacturing apparatus (SIDEL, SBO1 LABO). The mass of the obtained bottle was 24 g. The bottle diameter of the bottle before filling was φ68.0 mm.
In Comparative Example 1, 500 mL of distilled water heated to 75 ° C. was filled in the non-heat-resistant bottle produced as described above, and a resin cap was attached to the container mouth and sealed, without attaching a heat shrink label. A bottled beverage was produced.

[Example]
After using the non-heat-resistant bottle (mass of 24 g) prepared in Comparative Example 1, 500 mL of distilled water heated to 75 ° C. was filled into this non-heat-resistant bottle, and a container cap was fitted with a resin cap and sealed. , Heat-shrink label (uniaxially stretched polyester film, thickness 45μm, with white printing layer, 72.6mm before heat shrink), heat-shrink the label with a steam tunnel, heat-shrink, The bottled beverage shown in FIG. 1 was manufactured.

[Comparative Example 2]
A heat-resistant bottle (crystallinity 34%) conventionally used for hot pack filling was used. The bottle mass was 26 g. The diameter of the body portion of the bottle before filling was set to 68.0 mm as in the non-heat-resistant bottle.
This heat-resistant bottle is filled with 500 mL of distilled water heated to 75 ° C., and a container cap is sealed with a resin cap, and the beverage in a container without a heat-shrink label is attached as in Comparative Example 1. Manufactured.

The following lateral compression deformation measurement tests were performed on the beverages in containers of Comparative Examples 1 and 2 and the Examples, and the results were compared.
<Transverse compression deformation measurement test>
The amount of deformation when the bottle side surface of each container-containing beverage was pushed with a load of 58.8 N was measured. This lateral compression deformation amount is used as a substitute characteristic value for vending machine suitability.

[result]
The measurement results of the lateral compression deformation measurement test were as follows.
The lateral pressure deformation amount of Comparative Example 1 (bottle mass 24 g, no label) is 6.08 mm.
The lateral pressure deformation amount of the example (bottle mass 24 g, with label) is 4.09 mm.
The lateral pressure deformation amount of Comparative Example 2 (bottle mass 26 g, no label) is 4.11 mm.

  From the above results, in the embodiment according to the present invention, a low-cost and lightweight non-heat-resistant plastic container is filled with a liquid at a high temperature of 70 ° C. or higher, and then a heat shrink label is attached. The value of the lateral compression deformation, which is the value, can be reduced by about 2 mm.

It is a front view which shows one Embodiment of the beverage containing a container of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Beverage in a container, 2 ... Non heat resistant container, 3 ... Cover, 4 ... Heat-shrink label, 5 ... Liquid.

Claims (4)

  A method for producing a beverage containing a container, wherein a non-heat resistant plastic container is filled with a liquid at a high temperature of 70 ° C. or higher, and then a heat-shrink label is attached to the outer periphery of the container to produce a beverage containing the container.   The method for producing a beverage in a container according to claim 1, wherein the non-heat resistant plastic container is made of a non-heat resistant plastic having a body portion having a crystallinity of less than 30%.   The method for producing a containerized beverage according to claim 2, wherein the non-heat resistant plastic is polyethylene terephthalate.   A packaged beverage produced by the method for producing a packaged beverage according to any one of claims 1 to 3.

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