JP3921787B2 - Antibacterial packaging material - Google Patents
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- JP3921787B2 JP3921787B2 JP04940098A JP4940098A JP3921787B2 JP 3921787 B2 JP3921787 B2 JP 3921787B2 JP 04940098 A JP04940098 A JP 04940098A JP 4940098 A JP4940098 A JP 4940098A JP 3921787 B2 JP3921787 B2 JP 3921787B2
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Description
【０００１】
【発明の属する技術分野】
本発明は、鮮度保持効果及び抗菌効果を有する食品用の包材に関する。
【０００２】
【従来の技術】
食品に使用される抗菌包材として、プラスチック樹脂に各種抗菌成分を練り混んでフィルムに成形したものが従来からあるが、使用する抗菌成分が銀系の抗菌成分等のように不揮発性の成分である場合、包材と食品の接触する部分にしか抗菌効果が無く、特に内容物が固形分の場合は内容物全体に抗菌作用が及ばないという欠点があった。
また、揮発性の抗菌成分であるヒノキチオールやアリルイソチオシアネートを使用した場合、揮発性であるため包材と食品が非接触でも抗菌効果を期待できるが、樹脂に練り混んでフィルムを成形する際の成形温度等の熱で、揮発性の抗菌成分が揮散して、抗菌効果が低下する欠点があった。
また、揮発性の抗菌成分であるアリルイソチオシアネート等を紙に含浸させたり、フィルムにコーティングしたものもあるが、アリルイソシアネート等の抗菌成分は刺激臭が強く食品の風味に影響するといった欠点もあった。
【０００３】
【発明が解決しようとする課題】
本発明は、上記課題を鑑みてなされたもので、包材の内容物全体に対して抗菌効果があり、包材の製造工程において抗菌性を有する揮発性物質が揮散する量が極めて少なく、かつ揮発性物質の抗菌成分のもつ臭気による食品の風味への影響が殆どない抗菌効果に優れた包装材料を提供することを目的とする。
【０００４】
【課題を解決するための手段】
下記の手段によって課題を解決できる。
【０００５】
すなわち、請求項１に記載の発明は、樹脂基材上に接着剤からなる接着層を形成し、該接着層を介して熱融着性の樹脂層を積層した積層フィルムであって、該接着層に抗菌性を有する揮発性物質としてｔｒａｎｓ−２−ヘキセナールとｔｒａｎｓ，ｃｉｓ−２，６−ノナジエナールを添加したことを特徴とする抗菌包材である。
【０００６】
請求項２に記載の発明は、前記接着層に、更に、少なくとも１種類の香料成分を添加したことを特徴とする請求項１に記載の抗菌包材である。
【０００７】
請求項３に記載の発明は、前記熱融着性の樹脂層に、孔を形成したことを特徴とする請求項１又は２に記載の抗菌包材である。
【０００８】
【発明の実施の形態】
本発明の実施の形態についての一例を図面に基づいて説明する。
本発明は、樹脂基材１上に接着剤からなる接着層２を形成し、該接着層２を介して熱融着性の樹脂層３を積層した積層フィルムであって、該接着層２に抗菌性を有する揮発性物質４を添加し、前記熱融着性の樹脂層３に孔径が数μｍ〜数十μｍの微細な孔が無数に形成したことを特徴とする抗菌包材である。
【０００９】
本発明の樹脂基材は、延伸ポリプロピレン、ポリエステル、ナイロン等の樹脂フィルムを使用できる。コストの面から延伸ポリプロピレンが望ましいが、特にこれらに限定されるものではない。
【００１０】
本発明の接着層に使用される接着剤は、ポリエステル系、ポリウレタン系、ポリエーテル系等の接着剤が挙げられる。溶剤を揮散させるに要する乾燥時間の短い溶剤比率の少ない接着剤系が望ましいが、特にこれらに限定されるものではない。
【００１１】
本発明の熱融着性の樹脂層は、ポリエチレン、ポリプロピレン、エチレン酢酸ビニル共重合体等の樹脂を使用できる。コストの面からポリエチレンまたは未延伸ポリプロピレンが望ましいが、特にこれらに限定されるものではない。
【００１２】
本発明の抗菌性を有する揮発性物質としては、ｔｒａｎｓ−２−ヘキセナール、または、ｔｒａｎｓ，ｃｉｓ−２，６−ノナジエナールが挙げられ、ｔｒａｎｓ−２−ヘキセナールとｔｒａｎｓ，ｃｉｓ−２，６−ノナジエナールとを複合して使用される。さらに、上記の抗菌性を有する揮発性物質に、少なくとも１種類の抗菌性を有する香料成分、または抗菌性を有する香料成分と抗菌性を持たない香料成分とを各々少なくとも１種類の香料成分を複合したものでも良い。香料成分を複合することによって、包装対象の食品と類似の香りに調整することで、食品の風味への影響の少ない抗菌包材とすることができる。抗菌性を有する香料成分、または抗菌性を持たない香料成分としては、一般に使用される汎用のものから選択できる。特に、これらに限定されるものではない。
【００１３】
本発明では、抗菌性を有する揮発性の物質を用いることで、包装対象食品等が包材に非接触でも内容物全体に抗菌効果を効率よく発揮することができる。また、抗菌性を有する揮発性の物質を接着剤からなる接着層に添加して積層フィルムを製造することで、従来のようにフィルムに抗菌性を有する揮発性の物質を練り込んでフィルムを製造する方法に比較して、フィルム製造工程でのフィルム成形温度等の熱で揮発性の物質が揮散する量が極めて少なく、抗菌効果を効率よく発揮することができる。
【００１４】
樹脂基材上に接着剤からなる接着層を形成し、該接着層を介して熱融着性樹脂層を積層する方法は、基材に熱溶融させた熱融着性樹脂を押し出しラミネートしても良く、または基材と熱融着性フィルムをドライラミネートしても良い。熱による揮発性抗菌成分の消失をより少なくするにはドライラミネートの方が望ましい。
【００１５】
熱融着性樹脂層に微細孔を多数形成する方法は、針、レーザー光、ダイヤモンド粒子をコーティングしたロール等を使用する方法が挙げられるが、特にこれらの方法に限定されるものではない。本発明における抗菌包材は、袋にしてシール包装するのが望ましく、生鮮食品を密封包装して使用するのに最も適する。熱融着性樹脂層に微細孔を多数形成することで、抗菌性を有する揮発性の物質を熱融着性樹脂層側すなわち包材の内面に揮散させることができ、微細孔の数や孔径によって抗菌性を有する揮発性の物質の揮発量を制御することができる。
【００１６】
【実施例】
以下に本発明の具体的な実施例を示す。特に、これらに限定されるものではない。
＜実施例１＞
本発明の参考例として、次の要領で抗菌性香料成分入りの抗菌包材を作成した。
厚さ３０μｍの延伸ポリプロピレンフィルムと無数の微細孔を形成した厚さ２０μｍのポリエチレンフィルムを、下記の配合で調整したｔｒａｎｓ−２−ヘキセナール入り接着剤を用いてドライラミネートし、積層フィルムとした。
主剤（ポリエステル系）： ５６重量％
硬化剤（ポリイソシアネート系）： ４重量％
溶剤（酢酸エチル）： ３６重量％
ｔｒａｎｓ−２−ヘキセナール入： ４重量％
（抗菌性成分）
ドライラミネートは次の条件で行った。
接着剤塗布量：８ｇ／ｍ2 ｗｅｔ
乾燥条件：８０℃×１０秒
エージング：なし（室温放置）
微細孔の形成は、狭圧ロールの一方の表面にダイヤモンド粒子をコーティングしたロール間にフィルムを通して形成する方法すなわち特開平４−２４９９号広報記載の方法によった。
【００１７】
＜実施例２＞
本発明の参考例として、実施例１のｔｒａｎｓ−２−ヘキセナールをシトラールに置き換えて、実施例１と同様の方法で抗菌性香料成分入りの抗菌包材を作成した。
【００１８】
＜実施例３＞
実施例１の接着剤の配合を下記のように変えて、実施例１と同様の方法で抗菌性複合香料入りの抗菌包材を作成した。
主剤（ポリエステル系）： ５６重量％
硬化剤（ポリイソシアネート系）： ４重量％
溶剤（酢酸エチル）： ３５重量％
ｔｒａｎｓ−２−ヘキセナール： ２重量％
（抗菌性成分）
ｔｒａｎｓ，ｃｉｓ−２，６−ノナジエナール： ２重量％
（抗菌性成分）
メチルヘプチネカーボネート： １重量％
（非抗菌性成分）
【００１９】
＜実施例４＞
本発明の参考例として、実施例１の接着剤の配合を下記のように変えて、実施例１と同様の方法で抗菌性複合香料入りの抗菌包材を作成した。
主剤（ポリエステル系）： ５６重量％
硬化剤（ポリイソシアネート系）： ４重量％
溶剤（酢酸エチル）： ３４重量％
ｔｒａｎｓ−２−ヘキセナール： １重量％
（抗菌性成分）
シトラール： ２重量％
（抗菌性成分）
ベンジルイソブチレート： １重量％
（非抗菌性成分）
エチルメチルフェニルグリコシデート ２重量％
（非抗菌性成分）
【００２０】
＜比較例１＞
抗菌成分を含まない接着剤で実施例１と同様の方法で比較用積層フィルムを作成した。
【００２１】
＜比較例２＞
実施例１のｔｒａｎｓ−２−ヘキセナールをアリルイソチオシアネートに置き換えて、実施例１と同様の方法で比較用積層フィルムを作成した。
【００２２】
このように作成した抗菌性の食品香料成分を含む抗菌包材の実施例１乃至４及び比較用積層包材の比較例１、２の包材を用いて、各種菌液を塗布した平面培地シャーレを密封包装し、３０℃において菌の発育状況を観察した。試験に用いた菌は枯草菌、大腸菌、青カビである。その結果を表１に示す。
実施例１乃至４の抗菌性の香料成分を含む抗菌包材では、各菌に対して発育阻害効果が見られた。比較例２のアリルイソシアネートを含む包材でもある程度の発育阻害効果はみられた。
【００２３】
【表１】
また、葉野菜に類似の香りに調整した実施例３の抗菌包材と比較用に比較例２のアリルイソチオシアネートを含む包材を用いて、カットレタスを密封包装し、１５℃で３日間保存してそのときのレタスの風味への影響を官能評価した。その結果を表２に示す。
比較例２では３日間保存後レタスにアリルイソチオシアネートの刺激臭が移りレタスの風味が損なわれたのに対して実施例３においては３日間保存後もレタスの風味は損なわれなかった。
【００２５】
【表２】
また、イチゴに類似の香りに調整した実施例４の抗菌包材と比較用に比較例２のアリルイソチオシアネートを含む包材を用いて、イチゴを密封包装し、１５℃で３日間保存してそのときのイチゴの風味への影響を官能評価した。その結果を表３に示す。
比較例２では３日間保存後イチゴにアリルイソチオシアネートの刺激臭が移りイチゴの風味が損なわれたのに対して実施例４においては３日間保存後もイチゴの風味は損なわれなかった。
【００２７】
【表３】
【発明の効果】
本発明は以上詳細に説明したように、抗菌性を有する揮発物質を使用することで、包装対象の食品等の内容物が包材に非接触でも内容物全体に抗菌効果を効率よく発揮することができる。また、抗菌性を有する揮発性物質を接着剤からなる接着層に添加して積層フィルムを製造することで、従来のようにフィルムに抗菌性を有する揮発性物質を練り込んでフィルムを製造する方法に比較して、フィルム製造工程でのフィルム成形温度等の熱で揮発性の物質が揮散する量が極めて少なく、抗菌効果を効率よく発揮することができる。更に、抗菌性を有する揮発性物質に抗菌性を持たない一般の香料成分と調合して、包装対象の食品等と類似の香りに調整することで、食品等の風味への影響の少ない抗菌包材とすることができる。
従って、本発明は、包装対象の食品等の内容物の風味への影響がほとんどない抗菌効果に優れた包装材料を提供することをができる。
【図面の簡単な説明】
【図１】本発明の一実施例の抗菌包材の構成を示す断面図。
【符号の説明】
１……基材
２……接着層
３……熱可塑性樹脂層
４……抗菌効果を有する揮発性物質
５……微細孔[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging material for food having a freshness maintaining effect and an antibacterial effect.
[0002]
[Prior art]
As antibacterial packaging materials used for foods, there are conventional antibacterial ingredients mixed with plastic resin and molded into films, but the antibacterial ingredients used are non-volatile components such as silver antibacterial ingredients In some cases, the antibacterial effect is present only at the portion where the packaging material and the food are in contact, and particularly when the content is solid, there is a drawback that the entire content does not have an antibacterial effect.
Also, when hinokitiol or allyl isothiocyanate, which is a volatile antibacterial component, is used, it can be expected to have an antibacterial effect even when the packaging material and food are not in contact with each other. Due to heat such as molding temperature, volatile antibacterial components are volatilized and the antibacterial effect is reduced.
In addition, some papers are impregnated with volatile antibacterial components such as allyl isothiocyanate, or coated on a film. However, antibacterial components such as allyl isocyanate have a strong irritating odor and have the disadvantage of affecting the flavor of food. It was.
[0003]
[Problems to be solved by the invention]
The present invention has been made in view of the above problems, has an antibacterial effect on the entire contents of the packaging material, the amount of volatile substances having antibacterial properties volatilizes in the manufacturing process of the packaging material, and It is an object of the present invention to provide a packaging material having an excellent antibacterial effect with little influence on the flavor of food caused by the odor of an antibacterial component of a volatile substance.
[0004]
[Means for Solving the Problems]
The problem can be solved by the following means .
[0005]
That is, the invention described in
[0006]
The invention according to claim 2 is the antibacterial packaging material according to
[0007]
The invention according to
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An example of an embodiment of the present invention will be described with reference to the drawings.
The present invention is a laminated film in which an adhesive layer 2 made of an adhesive is formed on a
[0009]
As the resin base material of the present invention, a resin film of stretched polypropylene, polyester, nylon or the like can be used. Although stretched polypropylene is desirable from the viewpoint of cost, it is not particularly limited thereto.
[0010]
Examples of the adhesive used in the adhesive layer of the present invention include polyester-based, polyurethane-based, and polyether-based adhesives. An adhesive system having a short solvent ratio and a short solvent ratio required for volatilization of the solvent is desirable, but is not particularly limited thereto.
[0011]
For the heat-fusible resin layer of the present invention, resins such as polyethylene, polypropylene, and ethylene vinyl acetate copolymer can be used. Although polyethylene or unstretched polypropylene is desirable from the viewpoint of cost, it is not particularly limited thereto.
[0012]
Examples of the volatile substance having antibacterial properties of the present invention include trans-2-hexenal or trans, cis-2,6-nonadienal, and trans-2-hexenal and trans, cis-2,6-nonadienal Used in combination. Further, at least one fragrance component having antibacterial properties or a fragrance component having antibacterial properties and a fragrance component having no antibacterial properties are combined with the volatile substance having antibacterial properties. What you did is fine. By combining the fragrance components, the antibacterial packaging material having a little influence on the flavor of the food can be obtained by adjusting the scent to be similar to the food to be packaged. The fragrance component having antibacterial properties or the fragrance component not having antibacterial properties can be selected from commonly used general-purpose fragrance components. In particular, it is not limited to these.
[0013]
In the present invention, by using a volatile substance having antibacterial properties, the antibacterial effect can be efficiently exerted on the entire contents even when the food to be packaged is not in contact with the packaging material. In addition, by manufacturing a laminated film by adding an antibacterial volatile substance to an adhesive layer made of an adhesive, the film is manufactured by incorporating an antibacterial volatile substance into the film as before. Compared with the method to do, the quantity which a volatile substance volatilizes with heat | fever, such as film forming temperature in a film manufacturing process, is very small, and an antimicrobial effect can be exhibited efficiently.
[0014]
A method of forming an adhesive layer made of an adhesive on a resin base material and laminating a heat-fusible resin layer via the adhesive layer is obtained by extruding and laminating a heat-fusible resin that has been heat-melted to the base material. Alternatively, the substrate and the heat-fusible film may be dry laminated. Dry lamination is more desirable to reduce the disappearance of volatile antibacterial components due to heat.
[0015]
Examples of a method for forming a large number of fine holes in the heat-fusible resin layer include a method using a needle, laser light, a roll coated with diamond particles, and the like, but is not particularly limited to these methods. The antibacterial packaging material in the present invention is preferably sealed and packaged in a bag, and is most suitable for using fresh food in sealed packaging. By forming a large number of fine holes in the heat-fusible resin layer, volatile substances having antibacterial properties can be volatilized on the heat-fusible resin layer side, that is, the inner surface of the packaging material. Can control the volatilization amount of the volatile substance having antibacterial properties.
[0016]
【Example】
Specific examples of the present invention are shown below. In particular, it is not limited to these.
<Example 1>
As a reference example of the present invention, an antibacterial packaging material containing an antibacterial fragrance component was prepared as follows.
A stretched polypropylene film having a thickness of 30 μm and a polyethylene film having a thickness of 20 μm in which numerous fine pores were formed were dry-laminated using a trans-2-hexenal-containing adhesive prepared by the following composition to obtain a laminated film.
Main agent (polyester): 56% by weight
Curing agent (polyisocyanate type): 4% by weight
Solvent (ethyl acetate): 36% by weight
with trans-2-hexenal: 4% by weight
(Antimicrobial component)
Dry lamination was performed under the following conditions.
Adhesive application amount: 8 g / m 2 wet
Drying conditions: 80 ° C. × 10 seconds Aging: None (room temperature standing)
The micropores were formed by a method in which a film was formed between rolls coated with diamond particles on one surface of a narrow-pressure roll, that is, a method described in Japanese Patent Application Laid-Open No. 4-2499.
[0017]
<Example 2>
As a reference example of the present invention, trans-2-hexenal of Example 1 was replaced with citral, and an antibacterial packaging material containing an antibacterial fragrance component was prepared in the same manner as in Example 1.
[0018]
<Example 3>
An antibacterial packaging material containing an antibacterial composite fragrance was prepared in the same manner as in Example 1 except that the composition of the adhesive of Example 1 was changed as follows.
Main agent (polyester): 56% by weight
Curing agent (polyisocyanate type): 4% by weight
Solvent (ethyl acetate): 35% by weight
trans-2-hexenal: 2% by weight
(Antimicrobial component)
trans, cis-2,6-nonadienal: 2% by weight
(Antimicrobial component)
Methyl heptine carbonate: 1% by weight
(Non-antibacterial component)
[0019]
<Example 4>
As a reference example of the present invention, an antibacterial packaging material containing an antibacterial composite fragrance was prepared in the same manner as in Example 1, except that the composition of the adhesive of Example 1 was changed as follows.
Main agent (polyester): 56% by weight
Curing agent (polyisocyanate type): 4% by weight
Solvent (ethyl acetate): 34% by weight
trans-2-hexenal: 1% by weight
(Antimicrobial component)
Citral: 2% by weight
(Antimicrobial component)
Benzyl isobutyrate: 1% by weight
(Non-antibacterial component)
Ethylmethylphenylglycosidate 2% by weight
(Non-antibacterial component)
[0020]
<Comparative Example 1>
A comparative laminated film was prepared in the same manner as in Example 1 with an adhesive containing no antibacterial component.
[0021]
<Comparative example 2>
A comparative laminated film was prepared in the same manner as in Example 1, except that trans-2-hexenal in Example 1 was replaced with allyl isothiocyanate.
[0022]
Using the packaging materials of Examples 1 to 4 of the antibacterial packaging material containing the antibacterial food fragrance component thus prepared and Comparative Examples 1 and 2 of the comparative laminated packaging material, a flat medium petri dish coated with various bacterial solutions The package was sealed and the growth of the bacteria was observed at 30 ° C. Bacteria used for the test are Bacillus subtilis, Escherichia coli, and green mold. The results are shown in Table 1.
In the antibacterial packaging material containing the antibacterial fragrance component of Examples 1 to 4, the growth inhibitory effect was observed against each bacterium. Even the packaging material containing allyl isocyanate of Comparative Example 2 showed some growth inhibitory effect.
[0023]
[Table 1]
Moreover, the antibacterial packaging material of Example 3 adjusted to have a similar scent to leafy vegetables and the packaging material containing allyl isothiocyanate of Comparative Example 2 for comparison are hermetically packaged and stored at 15 ° C. for 3 days. Then, sensory evaluation of the effect on the flavor of lettuce at that time was performed. The results are shown in Table 2.
In Comparative Example 2, the stimulating odor of allyl isothiocyanate was transferred to lettuce after storage for 3 days, and the flavor of lettuce was impaired. In Example 3, the flavor of lettuce was not impaired even after storage for 3 days.
[0025]
[Table 2]
In addition, using the antibacterial packaging material of Example 4 adjusted to a scent similar to that of strawberry and the packaging material containing allyl isothiocyanate of Comparative Example 2 for comparison, the strawberry is sealed and stored at 15 ° C. for 3 days. The sensory evaluation of the influence on the flavor of strawberry at that time was performed. The results are shown in Table 3.
In Comparative Example 2, the irritating odor of allyl isothiocyanate was transferred to the strawberry after storage for 3 days, and the flavor of the strawberry was impaired. In Example 4, the flavor of the strawberry was not impaired even after storage for 3 days.
[0027]
[Table 3]
【The invention's effect】
As described in detail above, the present invention uses a volatile substance having antibacterial properties to efficiently exert antibacterial effects on the entire contents even when the contents of food to be packaged are not in contact with the packaging material. Can do. In addition, a method for producing a film by adding a volatile substance having antibacterial properties to a film as in the past by adding a volatile substance having antibacterial properties to an adhesive layer made of an adhesive to produce a laminated film In comparison with the above, the amount of the volatile substance that is volatilized by heat such as the film forming temperature in the film production process is extremely small, and the antibacterial effect can be efficiently exhibited. In addition, antibacterial packaging that has little effect on the flavor of foods, etc. by blending with fragrances that have antibacterial properties and general fragrance ingredients that do not have antibacterial properties, and adjusting it to a scent similar to foods to be packaged It can be a material.
Therefore, this invention can provide the packaging material excellent in the antibacterial effect which has little influence on the flavor of contents, such as the foodstuffs of packaging.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a configuration of an antibacterial packaging material according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04940098A JP3921787B2 (en) | 1998-03-02 | 1998-03-02 | Antibacterial packaging material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04940098A JP3921787B2 (en) | 1998-03-02 | 1998-03-02 | Antibacterial packaging material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11245343A JPH11245343A (en) | 1999-09-14 |
| JP3921787B2 true JP3921787B2 (en) | 2007-05-30 |
Family
ID=12830004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04940098A Expired - Lifetime JP3921787B2 (en) | 1998-03-02 | 1998-03-02 | Antibacterial packaging material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3921787B2 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007230023A (en) * | 2006-02-28 | 2007-09-13 | Nippon Polyethylene Kk | Laminate excellent in antifungal and antibacterial properties and freshness keeping properties and packaging bag |
| JP2007230022A (en) * | 2006-02-28 | 2007-09-13 | Nippon Polyethylene Kk | Laminate excellent in antifungal and antibacterial properties and packaging bag |
| JP6077912B2 (en) * | 2013-03-29 | 2017-02-08 | 大王製紙株式会社 | Hygiene article container |
| JP6372158B2 (en) * | 2014-05-15 | 2018-08-15 | 住友ベークライト株式会社 | Food packaging sheet, food packaging container and food packaging body |
| JP2016064837A (en) * | 2014-09-24 | 2016-04-28 | 住友ベークライト株式会社 | Food packaging sheet, food package container and food package |
| JP2016078906A (en) * | 2014-10-20 | 2016-05-16 | 住友ベークライト株式会社 | Food packaging sheet, food packaging container and food package |
| JP2016108040A (en) * | 2014-12-10 | 2016-06-20 | 住友ベークライト株式会社 | Food packaging sheet, food packaging container, and food package |
| JP6859801B2 (en) * | 2017-03-29 | 2021-04-14 | 住友ベークライト株式会社 | Antifungal resin film, antifungal laminated film and antifungal packaging |
| JP7433745B2 (en) * | 2018-03-15 | 2024-02-20 | Ｔｏｐｐａｎホールディングス株式会社 | antibacterial film |
| JP7135630B2 (en) * | 2018-09-13 | 2022-09-13 | 凸版印刷株式会社 | Antibacterial packaging films and packaging materials |
| JP7268384B2 (en) * | 2019-02-12 | 2023-05-08 | 凸版印刷株式会社 | Antibacterial films and packaging materials |
| JP7327960B2 (en) * | 2019-03-18 | 2023-08-16 | リンテック株式会社 | Film containing volatile chemicals |
| JP7251275B2 (en) * | 2019-04-02 | 2023-04-04 | 凸版印刷株式会社 | antimicrobial films and packaging |
| JP7404758B2 (en) * | 2019-10-10 | 2023-12-26 | Ｔｏｐｐａｎホールディングス株式会社 | Antibacterial films and packaging materials |
-
1998
- 1998-03-02 JP JP04940098A patent/JP3921787B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11245343A (en) | 1999-09-14 |
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