JP3044378B2 - Packing for vacuum packaging and heat sterilization - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing for vacuum packaging used when vacuum-packing an auxiliary material for food processing, and a packaging method for vacuum packaging using the packing for vacuum packaging. .

[Prior art] For a long time, foods such as dumplings or rice cakes (hereinafter collectively referred to as rice cakes) are used for foods such as sasa, reed (reed), shobu, shigaya, haran, sakura, oak, oyster, bamboo, etc. It was tubed with leaves or bark of the vegetation and served for dinner. Depending on the size and shape of these leaves or skins, the way of wrapping rice cakes naturally changes. For example, relatively long ones are folded in two or three to wrap rice cakes in the shape of a long triangle, equilateral triangle or similar, small circular ones are wrapped on both sides of rice cakes, and they are relatively wide and long. There are many ways to wrap things, such as winding them into a conical tube (funnel shape) and pushing rice cakes in from the opening.

The leaves or bark of vegetation used as an auxiliary material for food processing are used from collection to use in order to mass-produce rice cakes, average the annual demand due to the declining seasonal feeling, remote the production area, etc. The period tends to be longer. Therefore, it is necessary to maintain the freshness of the collected leaves or bark of the plant until the time of use.For example, the inventors of the present invention started the technology disclosed in Japanese Patent No. 945756, and maintained the freshness, particularly, discoloration and fading. Many processing techniques for preventing this have been proposed.

Such a processing technique for maintaining the freshness of the leaves or bark of a plant has been fully exerted by the progress of packaging technology, especially vacuum packaging technology. In other words, as seen in retort foods, it is stored in a film bag with excellent heat resistance, low air permeability, transparency, etc., and sterilization, sterilization and prevention of moisture evaporation through operations such as degassing, sealing, and heating. Long-term preservation of leaves or skins by adding effects such as
Furthermore, the distribution is more advantageous.

Here, in the vacuum packaging, when the inside of the bag is evacuated, the contents are squashed by receiving the atmospheric pressure right away, so that there is no particular problem if the contents are stored in a flat state. Therefore, as described above, the leaves or skins used in the form of a conical cylinder are also vacuum-packaged in a state of being stacked in a flat shape and bundled, and after storage or transportation, a user such as a confectionery company immediately before packaging rice cakes. In this method, flat food or skin was wound into a conical cylinder. However, in reality, such an operation puts a considerable burden on a confectionery company or the like. Therefore, we tried a method of collecting in the production area, applying necessary processing, and vacuum-packing the leaves or skins wound in a conical tube shape,
Simultaneously with deaeration, the conical cylinder is completely crushed, causing folds and wrinkles to be crumpled, and the confectionery company has a great deal of trouble in opening the close-fitting opening when used. It was not a welcome method because it not only reduced it, but also reduced workability.

[Problems to be solved by the invention]

As described above, in the prior art, auxiliary materials for food processing, such as leaves or skins surrounding plants and rice cakes, are preliminarily converted into a three-dimensional state (three-dimensional) such as a conical cylinder at the production site. After that, vacuum packaging, if the user opens the packaging bag, the contents can be used immediately without effort,
In addition, there is a problem that a packaging method that does not lower the commercial value of the contents has yet been found, and solving this problem has been a problem.

[Means for solving the problem]

In order to solve the above problems, the present invention comprises a frustoconical cylinder made of a heat-resistant polymer material that is elastic, odorless, harmless, and resistant to heat sterilization. Means such as vacuum packaging of heat-sterilized packing of bundles of rice cake wrapping materials made of leather were adopted.

In addition, the present invention relates to a method of packaging, wherein the outer or inner side of a bundle of rice cake wrapping materials made of leaves or skin wound in a conical cylindrical shape is elastic, odorless, harmless and resistant to heat sterilization. Thus, a vacuum packaging method comprising a truncated conical cylinder made of a polymer material and a heat sterilization packing are inserted, vacuum-packaged, and then heat-sterilized.

[Action]

Since the packing for vacuum packaging of the present invention has a cylindrical base cylindrical shape and is made of an elastic polymer material, it is completely flattened even if it gradually approaches a flat shape by receiving external forces perpendicular to the shaft from both sides. , And a portion having a large curvature is not completely crushed, so that a constant curvature is maintained. The shape-retaining property of the packing in a vacuum-packed state can be sufficiently exerted even in a required heat-sterilized state for a rice cake-like packaging material made of leaves or skins wound on a conical tube. In addition, when degassing, by degassing from one of the openings at both ends of the truncated cone, a pressure difference is generated between the inside and outside of the food processing auxiliary material made of leaves or bark wound into a cone. It can be degassed sufficiently and can be completely vacuum-packaged with good storability.

The leaves or bark of a plant wound in a conical cylinder are supported on the outside or inside by the vacuum packing,
Even if it is subjected to the atmospheric pressure during degassing, it will not be completely crushed, and the external pressure will be removed by opening, and at the same time, the packaging material will return to its original shape due to the restoring force of the vacuum packing, No remarkable folds or wrinkles as in the prior art occur at all.

〔Example〕

First, in this embodiment, a spindle-shaped sasa leaf with a width of 7 to 8 cm and a length of 28 to 30 cm, around which a sasa-rolled dumpling is wound, is exemplified as an auxiliary material for food processing, but the present invention is not limited to this. Not something.

In the case of the above-mentioned sasa leaf, the root of the leaf is rolled in from the outside (back side) at the tip of the leaf, and the tip of the leaf is bent inward to form a conical cylinder (funnel) as shown in FIG. did.

If the three-dimensional shape is formed in a conical cylindrical shape, the sasa dumpling is completed immediately by simply pushing the dumpling into the opening, and the confectionery company that winds the dumpling with sasa leaves can hardly take the trouble. However, when such a three-dimensional auxiliary material for food processing is crushed by external pressure, the bent conical cylindrical portion becomes flat, and sharp folds having no restoring force are generated on both sides, and as an auxiliary material, Product value will be lost. Therefore, a packing 1 for vacuum packaging as shown in FIG. 1 is used.

Since the vacuum packing 1 according to the present invention relates to a food processing auxiliary material related to food, it is needless to say that the packing 1 is made of a material which is preferable in food hygiene.
It must also be odorless. In addition, since a metal film having low elasticity has a risk of tearing the film for packaging during degassing of the vacuum packaging, it is an elastic polymer material. A material having heat resistance to withstand the heat is adopted as the vacuum packaging and heat sterilization packing. The type of the polymer material is not particularly limited as long as it satisfies these conditions. For example, polypropylene, which is a general-purpose resin, is a suitable material.

Next, the reason why the shape of the packing 1 for vacuum packaging is a truncated conical cylinder with a cut off at the top is to facilitate deaeration during vacuum packaging by opening both ends. The taper preferably matches or approximates the taper formed by the three-dimensional food processing auxiliary material. The reason for this is that if the taper is significantly different, when the three-dimensional food processing auxiliary material is inserted into the vacuum packaging packing 1, the familiarity between the two becomes poor and the stability is deteriorated.

Further, although the dimensions of the vacuum packing 1 are not particularly limited, in this embodiment, the large-diameter
mm, small diameter about 20 mm, height about 35 mm, and thickness about 0.5 mm in order to have appropriate elasticity. As a result, even if an external force equivalent to 1 atm was applied in the direction perpendicular to the axis to attempt to crush, the vacuum packaging packing 1 could not be completely crushed. Note that such a truncated conical cylinder may be an integrally molded product, or may be a fan-shaped sheet in which both end portions are welded, bonded, or the like.

In order to use such a packing 1 for vacuum packaging in vacuum packaging, as shown in FIG. 3, a cone of a bundle formed by stacking an arbitrary number of sasa leaves 2 as three-dimensional food processing auxiliary materials is used. The part is inserted into the vacuum packing 1 from the large diameter side, and another vacuum packing 1 ′ is inserted into the opening of the bundle of sasa leaves 2. If necessary, the tip of the bundle of sasa leaves 2 may be inserted into the vacuum packing 1 'and the above operation may be repeated as appropriate. Normal Sasa leaf 2
When the sasa leaf 2 itself is hard to be crushed as much as it is piled up, if a bundle of 100 pieces of the three-dimensional sasa leaf 2 that are densely stacked and made into a rod form one vacuum package, Vacuum packing 1 inserts one at each end of the bar-shaped bundle, and inserts two or three in the middle. If a total of four or five are used, the sasa leaves 2 will be damaged by folds or <wrinkles> That can be avoided enough.

After the above operation is completed, vacuum packaging and heat treatment will be performed as necessary.However, those methods, conditions, etc. may be used as they are, which are generally widely used.
There is no particular limitation. Then, the vacuum-packed packing 1 of the present invention and the bundle of three-dimensional sasa leaves 2 of the present invention are compressed by external pressure and become oblong in cross section. However, when the packaging bag is opened, any three-dimensional shape is obtained. Sasa leaves also returned immediately to their pre-packaged state, so it was easy to insert rice cakes and no obstructive problems occurred.

〔effect〕

As is apparent from the above description, the packing for vacuum packaging and processing and sterilization of the present invention is obtained by stacking rice cake wrapping materials made of leaves or bark wound on a cone and used in large quantities in the confectionery industry. It has a specific effect in the application of performing vacuum packaging and heat sterilization of a bundle, that is, when the rice cake packaging material described above is distributed or stored in a vacuum-packaged and heat-sterilized state, a fold is generated. Can be securely prevented and wrinkles can be prevented, which makes it easier to pack rice cakes, and distributes rice cake packaging materials that have high commercial value in terms of appearance and hygiene. It has the advantage that it can be stored.

Further, in the invention according to the packaging method of the present invention, the same effect as described above can be obtained by using the above packing, and packing in a pile of rice cake wrapping materials made of leaves or skins wound on a conical tube is stacked. Insert and vacuum package,
Since the packaging method is followed by heat sterilization, there is also an advantage that the gas can be reliably degassed from one of the inside and the outside of the truncated cone when degassing, and the subsequent heat sterilization can be performed reliably.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating the shape of the packing for vacuum packaging of the present invention. FIG. 2 is a perspective view of a three-dimensional sasa leaf shown as an example of a three-dimensional food processing auxiliary material of the present invention. FIG. 3 is a perspective view showing a three-dimensional Sasa leaf as an example in a state in which a three-dimensional food processing auxiliary material is vacuum-packaged using the vacuum packaging packing of the present invention. 1,1 '... Packing for vacuum packaging, 2 ... Sasa leaves (auxiliary material for food processing).

Claims (2)

(57) [Claims] 1. A rice cake packaging material comprising a frustoconical cylinder made of a heat-resistant polymer material having elasticity, odorlessness and harmlessness and resistant to heat sterilization, and leaves or skins of plants and trees wound in a conical cylinder shape. Vacuum packaging of stacked bundles and packing for heat sterilization. 2. The vacuum packaging and heat sterilization packing according to claim 1 is inserted into the outside or inside of a bundle of rice cake wrapping materials made of leaves or skin wound in a conical cylindrical shape. , Followed by heat sterilization packaging method.