JP2556740B2 - Mixed packaging - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a mixed package in which a plurality of contents, which may or may not be packed in one packaging material, are set and mixed and packaged, and in particular, The present invention relates to a mixed package capable of recognizing the existence of a product.

[Conventional technology]

When two or three types of contents that are individually or unpackaged are set and mixed and packaged, one or two types of contents may be missing.

Conventionally, as a method of detecting the contents mixed and packaged in this way, for example, an optical detection method of detecting the shadow of each content by using light rays such as an image sensor, ultrasonic waves, X-rays, and the like, A weight type detection method for detecting the total weight of each content such as a weight checker is known.

[Problems to be Solved by the Invention]

However, considering the case where the first and second contents are attached to the third contents and mixed and packed,
When the first and second contents have the same size, it is difficult to detect them individually by the optical detection method.

The weight of the attached first and second contents is the third.
The weight-based detection method cannot provide sufficient accuracy when the weight content of the third content is within the weight variation of the third content.

These problems were exactly the same when two different contents were mixed and packaged.

An object of the present invention is to include contents having substantially the same shape,
It is an object of the present invention to provide a mixed package that can be reliably detected even when it is impossible to determine the contents based on the total weight.

[Means for solving the problem]

In order to solve the above problems, the present invention wraps a first content in a first packaging material, and a second content having a substantially same shape as the first content is provided in the first packaging material. A mixed package in which a second packaging material having substantially the same shape as that of the first packaging material is packaged, and the third content is packaged with a third packaging material made of resin together with the packaged first and second contents. The first packaging material is a packaging material including an aluminum layer or an aluminum vapor deposition layer formed thereon, and the second packaging material is printed with an ink containing an iron component, and the third content is Is characterized by having a sufficiently large weight as compared with the first and second contents.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings and the like.

FIG. 1 is a diagram showing an embodiment of a mixed package according to the present invention, and FIG. 2 is a diagram for explaining a process of detecting the contents of the mixed package according to this embodiment.

In this embodiment, the packaging of instant noodles will be described as an example. In this case, the powder soup 1 as the first content, the ingredient 2 as the second content, and the noodle 3 as the third content are packaged. At this time, powder soup 1
The weight of the noodle 3 is sufficiently larger than that of the ingredient 2. In this example, the powdered soup 1 is 5 g and the ingredient 2 is 3.
80 g were used for g and noodles 3.

The powder soup 1 is pre-packaged with an aluminum packaging material 4 that includes an aluminum layer that is a non-ferrous metal serving as a first packaging material or that has an aluminum vapor deposition layer formed thereon. In addition, ingredient 2
Is pre-packaged with the iron-containing packaging material 5 printed with the ink containing the iron component, which is the second packaging material. After that, unwrapped noodle 3
A resin packaging material 6 made of a synthetic resin film, which is set together with the aluminum packaging material 4 and the iron-containing packaging material 5 and serves as a third packaging material.
Wrap with. The packaging materials 4, 5 and 6 are packaging materials combined with a film having a property of appropriately protecting the contents 1, 2 and 3.

As the aluminum packaging material 4, PT (ordinary cellophane)
/ PE (polyethylene) / Al (aluminum foil) / PE or OPP (stretched polypropylene) / PE / VMPET (aluminum vapor deposition polyester) / PE can be used.

The material of the iron-containing packaging material 5 includes all conventionally known packaging materials, such as paper, a plastic film or sheet, a composite sheet of paper and a plastic film, a laminate of plastic films, and a sheet or film of these. Examples of the packaging material include, but are not particularly limited to, a bag, a blister pack, a box, and the like, and further, those packaging materials provided with an ordinary printed pattern, a heat seal layer, and the like. For example, as a preferable plastic film as a packaging material, PET (polyethylene terephthalate), ON
(Stretched nylon), PT, OPP, KOP (vinylidene chloride coated stretched polypropylene) and the like, and examples of the heat sealing agent include PE, EVA (ethylene / vinyl acetate copolymer), PP (polypropylene) and the like.

The iron-containing packaging material 5 has a pattern printed on at least one surface of the above-mentioned general packaging material with an ink containing an iron component.

The shape of these patterns is not particularly limited to characters, symbols, patterns, pictures, solid printing, etc., and various films or papers may be laminated on the surface of the printing surface.

The iron component used in the present invention may be any conventionally known one, but is preferably iron powder, iron oxide pigment (Fe ₂ O ₃ ),
Needle-like or spherical iron oxide magnetic powder (Fe ₃ O ₄ ), γ-iron oxide (γ-Fe ₂ O ₃ ), cobalt-doped γ-iron oxide (γ-Fe)
₂ O ₃ ), a barium oxide / iron oxide composite (BaO · 6Fe ₂ O ₃ ), and the like.

Inks containing these iron components are conventionally known gravure printing inks, flexographic printing inks, silk screen printing inks, offset printing inks, etc., which are dispersed and mixed in a varnish or vehicle. Also, a conventionally known method may be used, and a general pigment may be used in combination with the above-mentioned iron component.

The content of the iron component in the ink is also not particularly limited, but if it is too small, the iron detection property will decrease, and if it is too large, the printability will decrease.
The range of about 10 to 40% by weight is preferable.

As the printing method using the ink containing the iron component described above, any conventionally known printing method such as a gravure printing method, a flexographic printing method, an offset printing method and a screen printing method can be used. If the ink film thickness formed is too thin, the iron detectability will decrease, and if it is too thick, it is meaningless.
Generally, 0.5 to 20 μm is a preferable thickness range.

In this example, 20 parts by weight of a urethane-based binder, 55 parts by weight of toluene / methyl ethylene ketone (1: 1), a small amount of an auxiliary agent such as a dispersant, magnetic powder (spherical Fe ₃ O ₄ , average particle size 0.8 μm).
m) An ink was prepared by mixing and grinding 25 parts by weight of each component.

Using the above-mentioned ink, solid printing was performed on the surface of a polyethylene terephthalate film having a thickness of 12 μm at a rate of 10 g / m ² as a solid content by a gravure printing method, and after drying, polyethylene (20 μm) and polypropylene (30 μm) were applied to the surface. Was extrusion coated to prepare an iron-containing packaging material 5.

Another example of the iron-containing packaging material 5 is an iron-containing ink layer / PET (12 μm) / DL (adhesive for dry lamination) / CP.
P (30 μm), or KOP / iron-containing ink layer / PE, or KOP
(20 μm) / iron-containing ink layer / UA (urethane anchor coat) / PE (20 μm), or ON (15 μm) / iron-containing ink layer / UA / PE (50 μm), PT (22 μm) / iron-containing ink layer / UA /
PE (50 μm) can be mentioned.

As the resin packaging material 6, PET / PE / CPP, K-PET (vinylidene chloride coated oriented polypropylene) / PE / CPP,
Alternatively, OPP / CPP or the like can be used.

The resin packaging material 6 thus packaged is passed through a line in which the aluminum detector 7, the iron detector 8 and the weight detector 9 are arranged as shown in FIG.

Here, a POS type manufactured by Nikka Densoku is used as the aluminum detector 7, an MFK type is used as the iron detector 8, and an auto checker (K-518A- manufactured by Anritsu Corporation) is used as the weight detector 9. 2 types) were used.

First, the aluminum detector 7 detects the presence or absence of the aluminum packaging material 4. Therefore, the aluminum packaging material 4
The presence of the powdered soup 1 packaged with can be detected.

Next, the iron detector 8 detects the presence or absence of the iron-containing packaging material 5. Therefore, the existence of the ingredient 2 wrapped with the iron-containing packaging material 5 can be detected.

In this case, the aluminum detector 7 detects only aluminum and not iron. Further, it is necessary for the iron detector 8 to detect only iron and not aluminum.

For this reason, the fluctuation amounts of the voltage generated when the resin packaging material 6 in which the contents are mixed and packaged pass through the aluminum detector 7 and the iron detector 8 are V _A (volt) and V _I (volt), respectively. Then, when passing the aluminum detector 7, V _A > V _I
Therefore, when passing through the iron detector 8, V _A <V _I is set.

In order to improve the detection accuracy of the aluminum detector 7 and the iron detector 8, the larger the voltage difference | V _A −V _I | generated when passing through the respective detectors 7 and 8, the better. For this purpose, the aluminum packaging material 4 is preferably vapor-deposited with aluminum because the voltage difference is large.

Finally, the weight detector 9 measures the total weight of the noodles wrapped with the resin wrapping material 6. Since the weight of the noodle 3 is sufficiently larger than the other contents and the wrapping material, the noodles The presence or absence of 3 can be detected.

In addition, although the instant noodle packaging is described as an example in this embodiment, it is not limited to such foods, and 2 to 3 kinds of contents such as miscellaneous goods, clothing, cosmetics, and other industrial materials can be set. It can be applied when mixed and packaged.

〔The invention's effect〕

As described in detail above, according to the present invention, even when two or three kinds of contents are set and mixed and packed, the respective contents can be reliably detected. It can be prevented.

Moreover, the metal detector for detection need only be one each of non-ferrous and iron, and the packaging material can be inexpensively implemented because it is printed only by the aluminum packaging material that is normally used and the ink containing the iron component. .

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a mixed package according to the present invention,
FIG. 2 is a diagram for explaining the process of detecting the contents of the mixed package according to this embodiment. 1 ... Powder soup, 2 ... Ingredients 3 ... Noodles, 4 ... Aluminum packaging material 5 ... Iron-containing packaging material, 6 ... Resin packaging material 7 ... Aluminum detector, 8 ... Iron detector 9 ... … Weight detector

 ─────────────────────────────────────────────────── --Continued from the front page (56) References JP 54-56591 (JP, A) JP 59-60277 (JP, A) JP 55-126029 (JP, A) JP 61- 227764 (JP, A)

Claims (1)

(57) [Claims] 1. A first packaging material is packaged with a first packaging material, and a second packaging material having a substantially same shape as the first packaging material is a second packaging material having a substantially same shape as the first packaging material. A mixed package in which the third packaging material is packaged with the packaging material, and the third content is packaged with the third packaging material made of resin together with the packaged first and second contents, wherein the first packaging material is A packaging material including an aluminum layer or having an aluminum vapor deposition layer formed thereon, the second packaging material is printed with an ink containing an iron component, and the third content is
A mixed package having a sufficiently large weight as compared with the first and second contents.