JP2508617B2 - Oxygen absorber double package - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an oxygen absorber package,
More specifically, it comprises an outer wrapping material A formed by laminating and bonding a non-breathable outer material and a seal layer, and an inner wrapping material B formed by laminating and bonding a permeable inner material and a permeable seal layer. A double wrapping material in which the outer packaging material A has a width larger than that of the inner packaging material B, and the sealing layer of the outer packaging material A and the breathable inner material of the inner packaging material B are overlapped with each other without being stuck to each other. Are laminated with a breathable seal layer as the inner surface, and an oxygen absorber is placed between the overlapping breathable seal layers to bond the seal layer and the breathable inner material at the peripheral edge, and Is an oxygen scavenger package in which sealing layers of the outer packaging material A are bonded to each other at an outer edge portion where the wider outer packaging material A is overlapped with each other. Exposed cut surface and breathable seal About deoxidant double package capable of venting through.

[0002]

2. Description of the Related Art Conventionally, when the oxygen absorber package is used in the food field, the conditions of the oxygen absorber package are not only breathability, but also water resistance, breakage resistance, safety and hygiene, and food flavor retention. sex,
Performance stability during handling has become an important requirement. For example, as a packaging material for an oxygen scavenger, a laminate of paper and a perforated polyethylene film has been conventionally used, and the air permeability in this case is controlled by the porosity of the polyethylene film.

However, when the oxygen scavenger is applied to foods having a high water content, the packaging material is inferior in water resistance, so that the oxygen scavenger may be damaged by damaging the oxygen scavenger packaging bag, or the perforated polyethylene film may have holes. In some cases, the contents may exude through the product, which is not preferable in terms of food safety and hygiene, and in addition, water absorption may slow the oxygen absorption rate. further,
Also in controlling the air permeability, there are drawbacks such that the air holes are deformed and the air permeability becomes unstable at the time of heat bonding during the production of the packaging material, and the oxygen absorption rate varies.

As a packaging material for improving the above-mentioned drawbacks, JP-A-53-51096 discloses that two plastic films having different melting points are perforated and they are stacked as they are.
Alternatively, a packaging material in which paper is sandwiched and laminated and bonded is disclosed. Further, JP-A-56-124440 or JP-A-56-12
Japanese Patent No. 4441 similarly discloses a packaging material using a plastic film having holes on its surface.

However, in these cases, since the surface is a plastic film, the water resistance is improved as compared with paper, but since a large number of holes are formed to provide air permeability, it is a humid food, that is, containing water. When it comes into contact with a large amount of food, the packaging material becomes moist and the contents ooze out, causing safety and health problems, and the strength is also weak. Further, there are drawbacks such that the holes are deformed and the air permeability is changed due to the influence of the adhesive due to heat bonding or the use of an adhesive at the time of manufacturing the packaging material. In addition, when applied to humid foods, the plastic film on the surface and the paper are peeled off, which sometimes makes it impossible to use as a packaging material for oxygen absorbers or alcohol-based freshness-retaining agents.

Further, an oxygen absorber using conventional packaging materials,
It has been pointed out that when the freshness-retaining agent is applied to foods such as coffee, tea, grated kelp, and peanuts, where it is important to retain the scent, the scent is deteriorated or weakened.

Further, when a large number of oxygen scavengers are used, the oxygen scavengers connected in the form of strips are cut and charged by using an automatic cutting / discharging machine or the like. In this case, the oxygen scavenger using conventional packaging materials is used. Absorbs oxygen in the atmosphere from the surface of the packaging material quickly, so the oxygen absorption capacity decreases during use, and the last of the band-shaped oxygen scavengers has a marked decrease in oxygen absorption rate or oxygen absorption. There was a drawback that it stopped on the way.

[0008]

The object of the present invention is to solve the above-mentioned problems of the conventional oxygen scavenger package, and to prevent the problem of safety and hygiene even when applied to humid foods. Another object of the present invention is to provide an oxygen absorber package having high strength, stable air permeability, and excellent food scent retention. Further, it is another object of the present invention to provide an oxygen scavenger package which is free from the problem of performance deterioration during handling in the continuous strip oxygen scavenger package and has excellent performance stability during handling.

[0009]

The present inventors have completed the present invention as a result of intensive studies in view of the problems of the prior art. That is, the present invention provides an outer wrapping material A formed by laminating and bonding a non-air-permeable outer material and a seal layer, and an inner wrapping material B formed by laminating and bonding a permeable inner material and a permeable seal layer. The outer packaging material A has a width larger than that of the inner packaging material B, and the sealing layer of the outer packaging material A and the breathable inner material of the inner packaging material B are superposed without sticking to each other. The packaging material is overlaid with a breathable seal layer as the inner surface, and an oxygen absorber is placed between the overlapping breathable seal layers to bond the seal layer and the breathable inner material at the peripheral edge, and , An oxygen scavenger package in which inner layers having air permeability are adhered to each other, and seal layers of the outer envelope material A are adhered to each other at an outer edge portion where a wide outer envelope material A is overlapped with each other. An exposed cut surface of the inner material and a breathable sheet It is intended to provide an oxygen scavenger double package, characterized in that can vent through Le layer.

In the double package of oxygen scavenger of the present invention,
Both sides of the oxygen scavenger are composed of a non-breathable outer material, a sealing layer, a breathable inner material, and a breathable sealing layer, and each layer is a non-breathable outer material / sealing layer / breathable material. The inner material / air-permeable sealing layer has an overlapping order. The non-breathable outer material and the seal layer are laminated and adhered to each other, and the non-breathable outer wrapping material A is laminated and the breathable inner material and the breathable seal layer are laminated and adhered to each other. A breathable inner packaging material B is constituted. Furthermore, the outer packaging material A and the inner packaging material B are adhered to each other by the adhesion of the seal layer and the air-permeable inner material, and the air-permeable inner materials are adhered to each other in the peripheral portion of the package containing the oxygen scavenger. Both sides are adhered by the outer wrapping material A, and in addition, the outer wrapping material A is overlapped at the outer edge portion where the wide outer wrapping material A is overlapped.
The sealing layer is laminated and adhered to each other. That is, the oxygen scavenger package of the present invention is a non-breathable outer packaging material A.
And a breathable inner wrapping material B are laminated without being laminated.

In the present invention, examples of non-breathable external materials include polyethylene terephthalate, polyamide, polypropylene, polycarbonate and cellophane.
Further, a film made of polyvinyl alcohol or the like, polyvinylidene chloride-coated various films, aluminum foil laminated film, further, aluminum vapor-deposited various films and the like can be mentioned. Among these, a polyethylene terephthalate film or a polyamide film is preferable in consideration of strength, ease of handling in production and the like.

The thickness of the film constituting the non-breathable outer material is preferably 50 μm or less, and particularly preferably 10 to 20 μm from the viewpoint of easy handling in production. The breathability of the non-breathable film is oxygen permeability Oxygen permeability 1000 ml / m ²
・ 24hr ・ atm or less is preferable, 500ml / m ²・ 24hr ・ at
m or less is particularly preferable.

In the present invention, the seal layer is for bonding a non-breathable outer material and a breathable inner material. As the sealing layer, for example, a plastic film or a heat sealing agent is used. When a plastic film is used as the seal layer, a plastic film made of, for example, polyethylene, ethylene vinyl acetate copolymer, ionomer resin, polybutadiene or polyvinyl chloride is used as the plastic film. In the case where the sealing layer is a plastic film, the thickness of the film is generally 10 to 70 μ, preferably 15 to 40 μ from the viewpoint of ensuring the sealing strength and handling in manufacturing.

When a heat-sealing agent is used as the seal layer, the heat-sealing agent is, for example, an ordinary hot-melt agent, hot-melt emulsion, ionomer latex, ionomer resin emulsion, polyethylene emulsion or ethylene vinyl acetate copolymer. An emulsion or the like is used. When the sealing layer is a heat-sealing agent, its coating amount is generally 0.5 to 3
It was 0 g / m ^2, preferably from 5 to 20 g / m ^2. The seal layer is used by being adhered to the non-breathable outer material and laminated or applied. The seal layer is not limited to one layer,
Depending on the adhesiveness between the non-breathable outer material and the breathable inner material during bag making, a two-layer seal layer is used in some cases. In this case, a method of applying a heat sealant to the surface of the air-permeable inner material is generally used.

In the present invention, as the air-permeable inner material, for example, paper or non-woven fabric is used. When paper is used as the air-permeable inner material, it is possible to use any of Japanese paper, rayon-mixed Japanese paper, western paper, etc. as the paper. Among these papers, Japanese paper or rayon-mixed Japanese paper is preferable in consideration of the adhesiveness to external materials and the air permeability. Also, the basis weight of the paper used is
It is determined in consideration of handleability, strength and the like, but for example, in the case of Japanese paper, the weight of 15 to 100 g / m ² is preferable.

When a non-woven fabric is used as the breathable inner material, the non-woven fabric may be a wet, dry or spunbonded non-woven fabric.
Examples of the material include various materials such as polyamide, polyethylene terephthalate and rayon. The basis weight of the non-woven fabric used is determined in consideration of air permeability, handleability, strength, etc. as in the case of paper.
One of 00 g / m ² is used. In order to impart water repellency or oil repellency to these papers or non-woven fabrics, it is possible to use papers or non-woven fabrics coated with a water repellent or an oil repellent.

In the present invention, as the air-permeable seal layer, the same material as the above-mentioned seal layer to which air permeability is imparted is used. That is, a plastic film, a heat sealing agent, or the like is used as the material of the seal layer having air permeability. When a plastic film is used as the material for the seal layer having air permeability, examples of the plastic film include polyethylene,
Examples of the plastic film include ethylene vinyl acetate copolymer, ionomer resin, polybutadiene, polyvinyl chloride and the like. Further, in the case where a heat sealant is used as the material of the seal layer having air permeability,
As the heat seal agent, for example, a normal hot melt agent,
Hot melt emulsion, ionomer latex,
Examples thereof include ionomer resin emulsions, polyethylene emulsions, and ethylene vinyl acetate copolymer emulsions.

As a method of imparting air permeability to the material used as the air-permeable seal layer, for example, a method of forming a hole in the film material (the hole here may be referred to as "hole" in this specification) , A method in which a film is thermocompression-bonded to Japanese paper, a non-woven fabric or the like to generate cracks in the film to impart air permeability, and a heat seal agent is applied to the inside of an air permeable inner material by a method such as pattern coating to improve air permeability. For example, a method of forming the seal layer is used.

Among the methods for imparting air permeability to the material used as the air-permeable sealing layer, as a method for forming a hole in the film material, for example, a method of forming a hole in the film material and then forming an inner material having air permeability A method of sticking, or a method of making a hole after sticking to an inner material having air permeability is adopted. In the case of a method in which a seal layer material is perforated by attaching a hole to the inner material having air permeability and then providing air permeability, if the contents do not leak when creating the air permeable package, There is no problem even if there is a hole in the material. The holes provided for the purpose of imparting air permeability to the seal layer material,
Generally, it is preferable to open a large number as long as the adhesiveness is not hindered. In this case, the open area ratio is generally 0.2 to 30%, preferably 1 to 20%.

When it is necessary to reduce or increase the air permeability of the oxygen scavenger double package of the present invention, the porosity of the air permeable seal layer is lowered or raised, and the air permeable inner material is used. The purpose can be achieved by adjusting the material or the thickness of the material used for.

In order to increase the strength of the oxygen scavenger double package of the present invention, for example, a split fiber is provided between an inner material having air permeability and a seal layer having air permeability, or a seal having air permeability. It is also possible to closely adhere to the inner side of the layers and carry out lamination adhesion. It is also possible to laminate and bond the split fiber between the non-breathable outer material and the seal layer or inside the seal layer.

Further, in the oxygen absorber double package of the present invention, printing can be applied to the back side of the non-breathable outer material. Furthermore, it is possible to perform solid printing after printing such as character printing on the back side of the non-breathable outer material.

In the present invention, the combination of the non-breathable outer material and the seal layer and the combination of the breathable inner material and the breathable seal layer are the seal strength of the package. It is possible to appropriately select and use the resin from the following viewpoints, strength, mechanical suitability, air permeability, etc., but for example, the following combinations are preferable. Example of combination of outer material / seal layer (1) PET / PE (2) Stretched polyamide / EVA (3) PET / ionomer

Examples of combination of inner material / sealing layer having air permeability (1) Polyester non-woven fabric / LLDPE (2) Polyamide non-woven fabric / PE (3) EVA sealant / water- and oil-resistant paper / PE (4) Japanese paper / PE Oxygen oxidant double packaging by appropriately combining a laminate comprising these outer materials and a seal layer, and a laminated sheet comprising an air permeable inner material and a gas permeable seal layer. You can get a body.

In order to produce the oxygen absorber double package of the present invention, for example, a three-way seal method or a four-way seal method is used. In the case of the three-way sealing method, for example, an outer packaging material A composed of an outer material and a seal layer, and an inner packaging material B composed of an inner material having air permeability and a seal layer having air permeability.
To the three-way seal type automatic filling and packaging machine with the seal layer and the air permeable inner material facing each other, folded in two with the air permeable seal layer inside, and It is manufactured by filling the appropriate amount of the oxygen scavenger contents while heat-sealing only the peripheral portion.

In the case of the four-way seal method, for example,
Two sets of double wrapping materials, in which the outer wrapping material A and the inner wrapping material B are superposed on each other while facing the seal layer and the breathable inner material, and facing each other with the breathable seal layer inside, It is manufactured by introducing it to a seal automatic filling and packaging machine and filling the content of the oxygen scavenger while heat-sealing only the peripheral portion of the bag.

When the double package of the present invention is manufactured by the above-mentioned three-way seal method or four-way seal method, the outer wrapping material A and the inner wrapping material are provided at the peripheral portion of the wrapping body containing the oxygen scavenger. B is adhered, and the inner packaging material B is adhered to each other.
Since the lateral width of the outer wrapping material A is wider than that of the inner wrapping material B, the outer wrapping materials A overlapped at the outer edge portions are bonded to each other via the seal layer. Therefore, when a strip-shaped continuous wrapping oxygen scavenger double wrapping body is manufactured in this form, the outer edge portion of the side of the strip-shaped continuous wrapping packaging body on which the outer wrapping material A overlaps is sealed, and the non-air-permeable outer wrapping material A is formed. In the strip-shaped continuous wrapping package covered with, only the both ends of the continuous wrapping package in which the breathable inner material portions are exposed. Therefore, the oxygen scavenger packages other than the packages at both ends of the strip-shaped continuous wrapping package are separated at the seal portion where the continuous wrapping package is continuous, and the cut surface of the air-permeable inner material is exposed. Only then can ventilation be provided inside and outside the oxygen absorber package.

Examples of the oxygen scavenger according to the present invention include sulfite, bisulfite, dithionite, hydroquinone, catechol, resorcin, pyrogallol, gallic acid, rongalit, ascorbic acid and / or its salt, isoascorbic acid. And / or a salt thereof, sorbose, glucose, lignin, dibutylhydroxytoluene, butylhydroxyanisole, ferrous salt, or a deoxidizer containing a metal powder such as iron powder, a carbon dioxide generating oxygen absorber or a carbon dioxide gas. Absorption-type oxygen scavengers and the like are used.

[0029]

The oxygen scavenger in the double package of the oxygen scavenger according to the present invention is packaged with the oxygen scavenger, a non-air permeable outer wrapping material A formed by laminating and bonding a non-air permeable outer material and a breathable inner material. And a breathable inner wrapping material B formed by laminating and bonding a breathable seal layer, have a double packaging structure, so that the outer surface of the non-breathable outer wrapping material A does not have breathability, Ventilation is performed through the exposed cut surface of the permeable inner material and the permeable seal layer. In other words, the ventilation inside and outside the oxygen absorber package is performed through the cut surface of the air-permeable inner material at the peripheral portion ← → the air-permeable inner material ← → the air-permeable portion of the air-permeable sealing layer. .

Further, since a band-shaped continuous wrapping oxygen scavenger package is prepared, it has a structure in which the sealing layers of the outer wrapping material A are laminated and bonded at the outer edge portion where the wide outer wrapping material A is overlapped. The part is only at both ends of the continuous package, and for example, when using with an automatic cutting and throwing machine, since the ventilation part is exposed only after cutting the continuous package, the oxygen scavenger is used until it is cut and used. Does not deteriorate in performance.

The air permeability of the oxygen scavenger double package of the present invention is adjusted mainly by the material and thickness of the air-permeable inner material, the cross-sectional area of the cut portion of the package, and the like.

Further, in the packaging material of the packaging body according to the present invention, since the printing is performed on the back side of the film of the non-breathable outer material, the ink does not come into direct contact with food, which is safe from the viewpoint of hygiene. Furthermore, when the solid printing is performed after the character printing, even if the contents ooze out on the breathable inner material, there is solid printing, that is, concealment printing, so the appearance of the package is improved. There is no loss. Furthermore, since the breathable package using the packaging material of the present invention has no pores on the surface, it is excellent in water resistance, oil resistance and strength.

[0033]

EXAMPLES Next, the present invention will be described in more detail by way of examples. Example 1 A PET (polyethylene terephthalate) film (non-breathable outer material) having a thickness of 12 μ, which was printed with a character printing and a white solid printing on the back, and PE (polyethylene, with a thickness of 40 μ,
A laminated film (1) with a width of 100 mm obtained by extruding and laminating a seal layer), Japanese paper with a basis weight of 60 g / m ² (a breathable inner material), and holes with a diameter of 1 mm that are uniformly distributed. Laminated sheet with a width of 95 mm obtained by laminating a perforated polyethylene film (sealing layer having air permeability) with a porosity of 15%.
Prepared (2). Next, with the laminated sheet (2) inside, the laminated sheet (2) and the laminated film (1) were mixed with PE of (1).
(2) Guide the double wrapping material with the Washi paper facing each other to a three-way seal automatic filling and packaging machine, and fill the inside of the breathable seal layer with 1.5 g of iron-based oxygen scavenger while not venting. The outer side of the flexible outer material was sealed with a bar heater and cut to obtain an oxygen absorber package having a size of 50 × 50 mm. This oxygen scavenger package was placed on a water-containing cotton containing 2 g of absorbent cotton and 10 ml of water, and sealed with a laminated film bag made of KOP (polyvinylidene chloride coated polypropylene) / PE together with 500 ml of air, and kept in a constant temperature bath at 35 ° C. Saved inside. The oxygen concentration after 2 days was analyzed, and the state of the oxygen absorber on the 14th day was observed. The results are shown in Table 1.

[0034]

[Table 1]

Comparative Example 1 Using a packaging material obtained by laminating pure white paper (basis weight: 50 g / m ² ) and a perforated polyethylene film having uniformly distributed holes with a diameter of 1 mm and an aperture ratio of 10%. Iron-based oxygen absorber 1.
5 g was filled to obtain a 50 × 50 mm oxygen absorber package.
The results of the same test as in Example 1 using this oxygen absorber package are shown in Table 1 as Comparative Example 1 together with Example 1.

Example 2 A stretched polyamide film (non-breathable outer material) having a thickness of 15 μ and having a thickness of 40 μ and a polyethylene vinyl acetate copolymer film (sealing layer) ) Laminated film (1) with a width of 60 mm laminated by extrusion, rayon paper (air-permeable inner material) with a basis weight of 50 g / m ² and a uniformly distributed diameter of 1 mm
Width 5 after heat-laminating a perforated polyethylene film (sealing layer having air permeability) having 15 holes and a porosity of 15%
A 5 mm laminated sheet (2) was prepared. Next, the laminated sheet
Double layered sheet (2) and laminated film (1) so that the seal layer of (1) and the air-permeable inner material of (2) face each other with (2) facing inside. The wrapping material is guided to a three-way seal automatic filling and packaging machine, and 1.0 g of the iron-based oxygen scavenger is filled inside the air-permeable inner material, while a bar is introduced from the outside of the air-impermeable outer material.
The mixture was sealed with a heater to obtain a strip-shaped continuous oxygen absorber package having a size of 30 × 40 mm and 3,000 linked together. This continuous-pack oxygen absorber package was cut at a rate of 40 pieces per minute using an automatic cutting and throwing machine, and the second oxygen absorber package from the beginning and the end was sampled. These oxygen absorber packages,
The film was sealed in a laminated film bag made of KOP (polyvinylidene chloride coated oriented polypropylene) / PE together with 250 ml of air and stored at 25 ° C. The results of analysis of oxygen concentration after 2 days are shown in Table 2. Also, these oxygen absorber packages were placed on a water-containing cotton containing 2 g of absorbent cotton and 10 ml of water, and sealed with a laminated film bag made of KOP (polyvinylidene chloride coated polypropylene) / PE together with 250 ml of air at 50 ° C. It was stored in a constant temperature bath.
The oxygen concentration after 2 days was analyzed, and the state of the oxygen absorber on the 14th day was observed. The results are shown in Table 3.

[0037]

[Table 2]

[0038]

[Table 3]

COMPARATIVE EXAMPLE 2 A PET film having a thickness of 12 μ and a PE film having a thickness of 15 μ were laminated to each other, and a perforated laminated film having uniformly distributed holes with a diameter of 1 mm and an aperture ratio of 5%. , Basis weight is 3
5g / m ² of Japanese paper and 1mm diameter holes uniformly distributed,
With a perforated polyethylene film with a porosity of 15%, perforated P
A continuous package oxygen scavenger package was obtained in the same manner as in Example 2 except that a packaging material formed by laminating ET / perforated PE / Japanese paper / perforated polyethylene film was laminated. The results of the same tests and measurements as in Example 2 using this continuous oxygen absorber package are shown in Table 2 and Table 3 as Comparative Example 2 together with Example 2.

Example 3 A PET film (non-breathable outer material) having a thickness of 12 μ and having one color printed on each side and one solid print on the back was coated with a P thickness of 35 μ.
Laminated film (1) having a width of 120 mm obtained by extruding and laminating E (seal layer), Japanese paper having a basis weight of 50 g / m ² (inner material having air permeability), and holes having a diameter of 1 mm uniformly distributed,
A laminated sheet (2) having a width of 110 mm was prepared by laminating a perforated polyethylene film (sealing layer having air permeability) with a porosity of 10%. Next, with the laminated sheet (2) inside, the laminated sheet (2) and the laminated film (1) were attached to the sheet of (1).
The double wrapping material in which the inner layer with air permeability of (2) faces each other is guided to the three-way seal automatic filling and packaging machine, and the carbon dioxide absorbing oxygen scavenger is placed inside the air permeable seal layer. Was sealed with a bar heater from the outside of the non-breathable outer material, and was cut to obtain an oxygen absorber package having a size of 60 × 60 mm. This oxygen absorber package was sealed in an ON (stretched nylon) / aluminum / PE bag together with 10 g of roasted coffee powder and stored in a constant temperature bath at 60 ° C. The oxygen concentration in the bag after 7 days was analyzed, the bag was opened, and the scent retaining effect was examined by a sensory test. The results are shown in Table 4.

Comparative Example 3 Other than using a packaging material obtained by laminating pure white paper (basis weight: 50 g / m ² ) and a perforated polyethylene film having uniformly distributed pores with a diameter of 1 mm and a porosity of 10% In the same manner as in Example 3, a carbon dioxide absorption type oxygen absorber was obtained. The results of the same tests and measurements as in Example 3 using this oxygen absorber package are shown in Table 4 as Comparative Example 3 together with Example 3.

Comparative Example 4 A perforated laminated film formed by laminating a PET film having a thickness of 12 μ and a PE film having a thickness of 15 μ and having pores with a diameter of 1 mm uniformly distributed and a porosity of 4%. , Basis weight is 5
With 0 g / m ² Japanese paper and uniformly distributed holes with a diameter of 1 mm,
Same as Example 3 except that a packaging material obtained by laminating a perforated polyethylene film having a porosity of 10% into a laminated structure of perforated PET / perforated PE / Japanese paper / perforated polyethylene film is used. To obtain a carbon dioxide absorption type oxygen absorber. The results of the same tests and measurements as in Example 3 using this oxygen absorber package are shown in Table 4 as Comparative Example 4.
Are shown together with Example 3.

Comparative Example 5 In Example 3, the oxygen absorber package was turned on / aluminum / P.
The results of the same tests and measurements as in Example 3 were carried out in the same manner as in Example 3 except that they were not enclosed in an E bag.
Shown together with.

[0044]

[Table 4]

[0045]

INDUSTRIAL APPLICABILITY In the oxygen scavenger double package of the present invention, the ventilation inside and outside the package is not performed by the holes in the surface as in the conventional oxygen scavenger package, but the inner material having air permeability is used. Since it is performed through the cut surface, the air permeability of the package is stable with little variation. In particular, in the case of adjusting the air permeability at a low air permeability level, in comparison with the method of adjusting the number of holes and the opening rate, which has been performed in the conventional oxygen absorber package, the method of the present invention provides Since it is possible to easily adjust the paper quality and thickness of the inner material having air permeability, the breathability is stable with little variation.

According to the present invention, since the outer packaging materials A have a structure in which the outer packaging materials A are laminated and adhered to each other at the overlapping outer edge portions of the wide outer packaging material A, a continuous package oxygen scavenger double package connected in a band shape is produced. , The ventilation part of the continuous package oxygen absorber double package is only both ends of the continuous package oxygen absorber, and when the continuous package oxygen absorber double package is cut by the automatic cutting machine, Since the aeration part of each oxygen scavenger double package is exposed, the oxygen scavenger does not deteriorate in performance before use and is extremely easy to handle.

Further, the packaging material of the oxygen scavenger package according to the present invention can be printed on the back side of the non-breathable outer material. In this case, the contents such as food and ink are not printed. It is hygienic and safe because it does not come into direct contact. Furthermore, when the solid printing (concealment printing) is performed after the character printing, the appearance of the package does not deteriorate even if the contents leak out onto the air-permeable inner material.

Since the packaged oxygen scavenger double package of the present invention has no holes on the outer surface of the package, the package has high water resistance,
The contents do not seep out. In addition, since it is stronger than the conventional packaging material, it is safe in terms of hygiene. In particular, since the outer packaging materials A are laminated and bonded to each other at the overlapping outer edge portions of the wide outer packaging material A, the outer materials do not peel off even when used under high humidity.

Furthermore, when the packaged oxygen scavenger double package of the present invention is applied to a food or the like in which fragrance is important, since the surface of the package is non-breathable, the scent of the food penetrates into the bag. Since it is difficult to contact with the oxygen-absorbing composition which is the content, the scent is not deteriorated and the scent is not adsorbed and weakened, and the scent retention property is extremely excellent.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a perspective view of an oxygen scavenger double package formed by sealing the three peripheral edges.

FIG. 2 is a cross-sectional view of a perspective view of an oxygen scavenger double package formed by sealing the four peripheral edges.

FIG. 3 shows a cross section of the oxygen scavenger double package in the ventilation direction.

[Explanation of symbols]

 1 Non-breathable outer material 2 Seal layer 3 Breathable inner material 4 Breathable seal layer 5 Air layer 6 Double packaging material 7 Bag seal 8 Oxygen scavenger

Claims (1)

(57) [Claims] 1. An outer packaging material A formed by laminating and bonding a non-breathable outer material and a seal layer, and an inner packaging material B formed by laminating and bonding a breathable inner material and a breathable seal layer. The width of the outer packaging material A is wider than the width of the inner packaging material B,
A double wrapping material obtained by stacking the seal layer of the outer wrapping material A and the air permeable inner material of the inner wrapping material B without sticking them together is laminated with the air permeable seal layer as the inner surface, and the air permeable property is overlapped. An oxygen scavenger is disposed between the seal layers having the sealant, and the seal layer and the breathable inner material are bonded at the peripheral edge portion, and the breathable inner materials are bonded to each other. An oxygen scavenger package in which the seal layers of the outer packaging material A are adhered to each other at the outer edge portion where A overlaps, and can be ventilated through the exposed cut surface of the inner material having breathability and the seal layer having breathability. An oxygen absorber double package characterized by