JP2018177243A - Packaging bag for keeping freshness of fruits and vegetables - Google Patents
Packaging bag for keeping freshness of fruits and vegetables Download PDFInfo
- Publication number
- JP2018177243A JP2018177243A JP2017074556A JP2017074556A JP2018177243A JP 2018177243 A JP2018177243 A JP 2018177243A JP 2017074556 A JP2017074556 A JP 2017074556A JP 2017074556 A JP2017074556 A JP 2017074556A JP 2018177243 A JP2018177243 A JP 2018177243A
- Authority
- JP
- Japan
- Prior art keywords
- packaging bag
- synthetic resin
- freshness
- bag
- resin film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Packages (AREA)
Abstract
【課題】開口部の捩り度合いのコントロールが容易で、鮮度保持機能を調整し易い実用的な鮮度保持用包装袋を提供する。
【解決手段】純曲げ試験における曲げ剛性（Ｂ値）を所定の数値範囲内に調整した厚さ３２μｍのポリエチレンテレフタレートフィルム（１２μｍの二軸延伸ポリエチレンテレフタレートフィルムからなる基材層に２０μｍのポリエチレンテレフタレート樹脂からなるヒートシール層を積層したもの）を二つ折りして、その左右を約２３０℃の温度で５ｍｍ幅でヒートシールすることによって、高さ（袋の深さ方向の長さ）×幅＝約１５０ｍｍ×２５０ｍｍの大きさを有する上部を開口した長方形状の二方袋を製造した。
【選択図】なし[Problem] To provide a practical packaging bag for maintaining freshness, which is easy to control the degree of twist of an opening and easy to adjust the function of maintaining freshness.
SOLUTION: A 32 μm thick polyethylene terephthalate film (a 20 μm polyethylene terephthalate resin is formed on a substrate layer consisting of a 12 μm biaxially stretched polyethylene terephthalate film) whose bending rigidity (B value) in a pure bending test is adjusted within a predetermined numerical range. (Holding the heat seal layer consisting of two layers in half) and heat sealing left and right with a temperature of about 230 ° C to a width of 5 mm, height (length in the depth direction of the bag) × width = about A top open rectangular two-sided bag having a size of 150 mm × 250 mm was manufactured.
【Selection chart】 None
Description
本発明は、合成樹脂フィルムによって形成された青果物の鮮度保持用の包装袋に関するものである。 The present invention relates to a packaging bag for maintaining the freshness of fruits and vegetables formed of a synthetic resin film.
レタス、キャベツ、ホウレンソウ、ブロッコリー、アスパラガス等の葉菜類、サヤエンドウ、スイートコーン等の果菜類、ジャガイモ、カボチャ等の根菜類、ミカン、バナナ等のフルーツ、椎茸、シメジ等のキノコ類等の各種の青果物を収納するための包装袋として、ポリエチレンフィルムやポリプロピレンフィルム等の合成樹脂フィルムによって形成された包装袋が知られている。 Leaf vegetables such as lettuce, cabbage, spinach, broccoli and asparagus, fruits such as sweet pea and sweet corn, root vegetables such as potatoes and pumpkins, fruits such as oranges and bananas, mushrooms and vegetables such as shiitake mushroom and shimeji A packaging bag formed of a synthetic resin film, such as a polyethylene film or a polypropylene film, is known as a packaging bag for storing a container.
また、セロハンテープや輪ゴム等の包装袋以外のものを用いることなく、青果物の包装をきわめて簡単に行うことができるように、特許文献１の如く、青果物を収納した状態で開口部を捩ることによってその収納状態を保持する青果物の鮮度保持用包装袋が開発されている。 Also, by twisting the opening with the fruits and vegetables stored as in Patent Document 1 so that the fruits and vegetables can be packaged very easily without using packaging bags other than cellophane tape, rubber bands and the like. A packaging bag for maintaining the freshness of fruits and vegetables that holds the stored state has been developed.
しかしながら、特許文献１の如き従来の包装袋は、捩った後の開口部がすぐに開いてしまったり、反対に開口部が小さく絞られすぎてしまったりする。そのため、開口部が予定していた大きさよりも大きくなったり、小さくなったりするため、鮮度保持機能のコントロールが難しい、という不具合がある。 However, in the conventional packaging bag as disclosed in Patent Document 1, the opening after twisting may be opened immediately, or the opening may be too small. Therefore, there is a problem that the control of the freshness holding function is difficult because the opening becomes larger or smaller than the intended size.
本発明の目的は、上記従来の食品収納袋が有する問題点を解消し、開口部の捩り度合いの調整が容易であるとともに、開口部を捩った際の形状の保持性が良好で、鮮度保持機能のコントロールが容易で実用的な鮮度保持用包装袋を提供することにある。 The object of the present invention is to solve the problems of the above-mentioned conventional food storage bag, to easily adjust the degree of twisting of the opening, and to maintain good shape when twisting the opening, freshness An object of the present invention is to provide a practical freshness holding packaging bag which is easy to control the holding function.
本発明の内、請求項１に記載された発明は、合成樹脂フィルムによって形成されており青果物を収納した状態で開口部を捩ることによってその収納状態を保持する青果物の鮮度保持用包装袋であって、合成樹脂フィルムの純曲げ試験における曲げ剛性（所謂、Ｂ値）が、縦方向、横方向ともに、０．０２ｇｆ・ｃｍ２／ｃｍ以上０．１８ｇｆ・ｃｍ２／ｃｍ以下であることを特徴とするものである。なお、合成樹脂フィルムの縦方向とは、形成される包装袋の高さ方向（深さ方向）のことであり、合成樹脂フィルムの横方向とは、形成される包装袋の幅方向のことである。 Among the present inventions, the invention described in claim 1 is a packaging bag for maintaining the freshness of fruits and vegetables which is formed of a synthetic resin film and holds the stored state by twisting the opening in a state where the fruits and vegetables are stored. And the flexural rigidity (so-called, B value) in the pure bending test of the synthetic resin film is 0.02 gf · cm 2 / cm or more and 0.18 gf · cm 2 / cm or less in both the longitudinal direction and the transverse direction. It is said that. The longitudinal direction of the synthetic resin film means the height direction (depth direction) of the packaging bag to be formed, and the lateral direction of the synthetic resin film means the width direction of the packaging bag to be formed is there.
請求項２に記載された発明は、請求項１に記載された発明において、合成樹脂フィルムの純曲げ試験における曲げヒステリシス（所謂、２ＨＢ値）が、縦方向、横方向ともに、０．００１ｇｆ・ｃｍ／ｃｍ以上０．０２ｇｆ・ｃｍ／ｃｍ以下であることを特徴とするものである。 The invention described in claim 2 is the invention described in claim 1 in which the bending hysteresis (so-called 2HB value) in the pure bending test of the synthetic resin film is 0.001 gf · cm in both the longitudinal direction and the transverse direction. / Cm or more and 0.02 gf · cm / cm or less.
請求項３に記載された発明は、請求項１、または請求項２に記載された発明において、合成樹脂フィルムが、ポリエチレンテレフタレートあるいはポリ乳酸によって形成された基材層を含むものであることを特徴とするものである。 The invention described in claim 3 is characterized in that, in the invention described in claim 1 or claim 2, the synthetic resin film includes a base material layer formed of polyethylene terephthalate or polylactic acid. It is a thing.
本発明に係る青果物の鮮度保持用包装袋は、開口部の捩り度合いの調整が容易であるとともに、開口部を捩った際の形状の保持性が良好で、鮮度保持機能のコントロールが容易である。 The packaging bag for keeping the freshness of fruits and vegetables according to the present invention is easy to adjust the twist degree of the opening, has good shape retention when twisting the opening, and can easily control the freshness holding function. is there.
請求項２に記載の青果物の鮮度保持用包装袋は、一旦捩って絞り込んだ開口部を開口した後に再度捩って絞り込む際でも、捩り保持性（包装袋の開口部を捩って絞り込んだ後に形状が保持される度合い）が良好である。 The packaging bag for maintaining the freshness of fruits and vegetables according to claim 2 has a twisting retention property (the opening of the packaging bag is squeezed by squeezing even when it is twisted again after the opening is squeezed and then narrowed again. The degree to which the shape is retained later is good.
請求項３に記載の青果物の鮮度保持用包装袋は、包装袋の透明性が高く、青果物を収納した場合に内部を見易い上、開口部の捩り度合いの調整が非常に容易である。 The freshness maintaining packaging bag according to claim 3 has high transparency of the packaging bag, and the inside of the packaging bag is easy to see when the vegetable is stored, and the twist degree of the opening is very easy to adjust.
本発明に係る鮮度保持用包装袋は、青果物を収納した状態で開口部を捩ることによってその収納状態を保持するものであって、形成材料である合成樹脂フィルムの純曲げ試験における曲げ剛性が、所定の範囲に調整されていることを特徴としている。 The packaging bag for keeping freshness according to the present invention holds the stored state by twisting the opening in a state where fruits and vegetables are stored, and the bending rigidity in the pure bending test of the synthetic resin film which is a forming material is It is characterized in that it is adjusted to a predetermined range.
形成材料である合成樹脂フィルムは、ヒートシールまたは溶断シールが可能なものであれば特に限定されず、単一層からなるもので良いし、基材層の上に熱融着層を積層したものでも良い。さらに、基材層や熱融着層が複数の層からなるものでも良い。 The synthetic resin film which is a forming material is not particularly limited as long as it can be heat-sealed or blow-sealed, and it may be a single layer, or a heat fusion layer laminated on a base material layer. good. Furthermore, the base material layer and the heat sealing layer may be composed of a plurality of layers.
また、基材層としては、食品包装に用いられる汎用合成樹フィルム等を好適に用いることができるが、それらの中でも、ポリエチレンテレフタレートフィルムあるいはポリ乳酸フィルムを用いると、包装袋の透明性が高くなり、青果物を収納した場合に内部を見易いものとなる上、開口部の捩り度合いの調整が非常に容易なものとなるので好ましい。 Moreover, as a base material layer, although the general purpose synthetic wood film etc. which are used for food packaging can be used suitably, when the polyethylene terephthalate film or the polylactic acid film is used among them, the transparency of a packaging bag will become high. When the fruit and vegetables are stored, the inside can be easily viewed, and the adjustment of the degree of twist of the opening is very easy, which is preferable.
一方、熱融着層としては、基材層に比べて融点の低い合成樹脂からなる層等を用いることができ、それらの中でも、エステル結合を有する合成樹脂からなる層等を用いると、開口部の捩り度合いの調整が非常に容易なものとなるので好ましい。 On the other hand, a layer made of a synthetic resin having a melting point lower than that of the base layer can be used as the heat fusion layer, and a layer made of a synthetic resin having an ester bond can be used among them. Adjustment of the degree of twisting is very easy, which is preferable.
また、本発明に係る鮮度保持用包装袋の形状は、特に限定されず、左右および下部をヒートシールしてなる三方袋や、二つ折りされた合成樹脂フィルムの左右をヒートシールしてなる二方袋等の形状にすることが可能である。 Further, the shape of the packaging bag for keeping freshness according to the present invention is not particularly limited, and a three-way bag formed by heat sealing left and right and a lower part, and two sides formed by heat sealing left and right of a half-folded synthetic resin film. It is possible to make the shape of a bag or the like.
また、形成材料である合成樹脂フィルムの厚みは、特に限定されないが、５〜７５μｍの範囲であると好ましく、２０〜４０μｍの範囲であるとより好ましい。合成樹脂フィルムの厚みが５μｍを下回ると、フィルムの“腰”がなくなってしまい、開口部を捩った場合に形状が保持されにくくなるので好ましくなく、反対に、合成樹脂フィルムの厚みが７５μｍを上回ると、フィルムの剛性が高くなりすぎて、開口部を捩りにくくなるので好ましくない。 Moreover, the thickness of the synthetic resin film which is a formation material is although it does not specifically limit, It is preferable in the range of 5-75 micrometers, and more preferable in the range of 20-40 micrometers. If the thickness of the synthetic resin film is less than 5 μm, it is not preferable because the film has no “waist” and the shape is difficult to be retained when the opening is twisted. Conversely, the thickness of the synthetic resin film is 75 μm. If it exceeds, the rigidity of the film becomes too high, which makes it difficult to twist the opening, which is not preferable.
さらに、形成材料である合成樹脂フィルムは、純曲げ試験における曲げ剛性（Ｂ値）が、縦方向、横方向ともに０．０２ｇｆ・ｃｍ２／ｃｍ以上０．１８ｇｆ・ｃｍ２／ｃｍ以下であることが必要であり、縦方向、横方向ともに０．０５ｇｆ・ｃｍ２／ｃｍ以上０．１５ｇｆ・ｃｍ２／ｃｍ以下であるとより好ましい（なお、純曲げ試験における曲げ剛性の算出方法については後述する）。曲げ剛性が０．０２ｇｆ・ｃｍ２／ｃｍを下回ると、フィルムの腰がなくなってしまい、開口部を捩った場合に形状が保持されにくくなるので好ましくなく、反対に、曲げ剛性が０．１８ｇｆ・ｃｍ２／ｃｍを上回ると、フィルムの剛性が高くなりすぎて、開口部を捩りにくくなるので好ましくない。 Furthermore, the synthetic resin film which is a forming material has a flexural rigidity (B value) in a pure bending test of 0.02 gf · cm 2 / cm or more and 0.18 gf · cm 2 / cm or less in both longitudinal and lateral directions. Is required, and it is more preferable that the longitudinal direction and the lateral direction be 0.05 gf · cm 2 / cm or more and 0.15 gf · cm 2 / cm or less (note that the calculation method of the bending rigidity in the pure bending test will be described later) ). If the flexural rigidity is less than 0.02 gf · cm 2 / cm, the film is not stiff and the shape is difficult to maintain when the opening is twisted, which is not preferable. Conversely, the flexural rigidity is 0.18 gf If it exceeds cm 2 / cm, the rigidity of the film becomes too high, which makes it difficult to twist the opening, which is not preferable.
また、形成材料である合成樹脂フィルムは、純曲げ試験における曲げヒステリシス（２ＨＢ値）が、０．００１ｇｆ・ｃｍ／ｃｍ以上０．０２ｇｆ・ｃｍ／ｃｍ以下であると、一旦捩って絞り込んだ開口部を開口した後に再度捩って絞り込む際でも、捩り保持性（包装袋の開口部を捩って絞り込んだ後に形状が保持される度合い）が良好なものとなるので好ましい。 In addition, the synthetic resin film, which is a forming material, is an opening that has been twisted and narrowed once that the bending hysteresis (2HB value) in the pure bending test is 0.001 gf · cm / cm or more and 0.02 gf · cm / cm or less Even when the part is opened again, it is preferable because the twist retention (the degree to which the shape of the packaging bag is retained after being twisted down) becomes good.
また、本発明に係る鮮度保持用包装袋は、葉菜類、根菜類やキノコ類等の各種の青果物を収納可能なものであるが、鮮度保持性を良好なものとするために、袋の内面が防曇性を有していることが好ましい。防曇性を付与する方法としては、特に限定されるものではないが、袋を形成する合成樹脂原料中に予め防曇剤を含有させても良いし、袋の内面となるフィルム面に、防曇剤をコーティングしても良い。ここで用いる防曇剤としては、非イオン系の界面活性剤をあげることができ、防曇性と併せて帯電防止性を発揮するものを用いるのが好ましい。そのような防曇剤としては、多価アルコールの脂肪酸エステル類、高級脂肪酸のアミン類、高級脂肪酸のアマイド類、ショ糖脂肪酸エステル類、高級脂肪酸のアミンやアマイドのエチレンオキサイド付加物等の非イオン系の界面活性剤を挙げることができる。そして、それらの防曇剤の中でも、ポリオキシエチレンアルキルアミン型、ポリオキシエチレンアルキルアミン脂肪酸エステル型、脂肪酸グリセリンエステル型を併用するのが好ましい。また、ポリビニルアルコール等の水溶性樹脂をコーティング剤として用いても良い。 Further, the packaging bag for keeping freshness according to the present invention can store various fruits and vegetables such as leafy vegetables, root vegetables and mushrooms, but the inner surface of the bag is good for maintaining freshness retention. It is preferable to have antifogging properties. The method for imparting the antifogging property is not particularly limited, but an antifogging agent may be previously contained in the synthetic resin raw material forming the bag, or the film surface to be the inner surface of the bag may be protected. You may coat a fogging agent. As the antifogging agent to be used here, a nonionic surfactant can be mentioned, and it is preferable to use one which exhibits antistatic properties in combination with the antifogging property. As such antifogging agents, nonionic agents such as fatty acid esters of polyhydric alcohol, amines of higher fatty acids, amides of higher fatty acids, sucrose fatty acid esters, amines of higher fatty acids and ethylene oxide adducts of amides Mention may be made of surfactants of the system. And among these antifogging agents, it is preferable to use a polyoxyethylene alkylamine type, a polyoxyethylene alkylamine fatty acid ester type, and a fatty acid glycerin ester type in combination. In addition, a water-soluble resin such as polyvinyl alcohol may be used as the coating agent.
加えて、本発明に係る鮮度保持用包装袋は、鮮度保持機能を良好なものとするために、任意の位置に微細な孔（貫通状あるいは非貫通状の孔）を穿設することも可能である。 In addition, in the packaging bag for keeping freshness according to the present invention, it is possible to drill fine holes (through or non-through holes) at any position in order to improve the freshness holding function. It is.
加えて、合成樹脂フィルムを形成する樹脂には、必要に応じて各層の特性を阻害しない範囲で、熱安定剤、酸化防止剤、光安定剤、滑剤、核剤、難燃剤、顔料、染料、炭酸カルシウム、硫酸バリウム、水酸化マグネシウム、マイカ、タルク、クレー、酸化亜鉛、酸化マグネシウム、酸化アルミニウム、抗菌剤、自然分解性を付与する添加剤等を添加することができる。さらに、熱可塑性樹脂、熱可塑性エラストマー、ゴム類、炭化水素樹脂、石油樹脂等を合成樹脂フィルムの特性を害さない範囲で配合してもよい。その他、量子論に基いた物質変性等の処理をすることも可能である。 In addition, the resin forming the synthetic resin film may be, if necessary, a heat stabilizer, an antioxidant, a light stabilizer, a lubricant, a nucleating agent, a flame retardant, a pigment, a dye, to the extent that the properties of each layer are not impaired. Calcium carbonate, barium sulfate, magnesium hydroxide, mica, talc, clay, zinc oxide, magnesium oxide, aluminum oxide, an antibacterial agent, an additive that imparts natural degradability, and the like can be added. Furthermore, thermoplastic resins, thermoplastic elastomers, rubbers, hydrocarbon resins, petroleum resins and the like may be blended within the range that does not impair the characteristics of the synthetic resin film. In addition, it is also possible to perform processing such as substance modification based on quantum theory.
なお、本発明に係る鮮度保持用包装袋は、単純に開口部を捩っただけでも内容部である青果物を収納可能なものであるが、流通時に内容物が飛び出したりしないように、捩って絞り込んだ開口部をテープや輪ゴム等によって固定して利用することも可能である。 In addition, although the packaging bag for freshness maintenance which concerns on this invention can accommodate the fruit and vegetables which are contents part only by twisting an opening part simply, it twists so that the contents may not jump out at the time of distribution. It is also possible to fix and use the narrowed opening with tape or rubber band.
以下、実施例・比較例によって本発明に係る鮮度保持用包装袋について詳細に説明するが、本発明の包装袋は、かかる実施例の態様に何ら限定されるものではなく、本発明の趣旨を逸脱しない範囲で、適宜変更することが可能である。また、実施例および比較例における物性、特性の評価方法は以下の通りである。 Hereinafter, although the packaging bag for freshness maintenance which concerns on this invention is demonstrated in detail by an Example and a comparative example, the packaging bag of this invention is not limited at all by the aspect of this Example, The meaning of this invention It is possible to change suitably in the range which does not deviate. Moreover, the evaluation method of the physical property in an Example and a comparative example and a characteristic is as follows.
＜純曲げ試験における曲げ特性＞
実施例、比較例で用いた合成樹脂フィルムを、縦（包装袋の高さ方向に相当、以下、ＭＤ方向という）×横（包装袋の幅方向に相当、以下、ＴＤ方向という）＝２０ｃｍ×２０ｃｍの大きさに切り出し、カトーテック株式会社製の純曲げ試験機（ＫＥＳ−ＦＢ２−Ａ）を用いて、切り出した試片の曲げ試験を行った。すなわち、切り出した試片のＭＤ方向、ＴＤ方向について、曲率Ｋ＝±２．５ｃｍ−１の範囲において等速度（変形速度０．５ｃｍ−１／ｓｅｃ．）の曲げ条件で、それぞれ１サイクルの曲げ試験を行い、得られた曲げヒステリシス曲線から、単位長さ当たりの曲げ剛性Ｂ（ｇｆ・ｃｍ２／ｃｍ）、ヒステリシスの幅２ＨＢ（ｇｆ・ｃｍ／ｃｍ）を算出した。なお、Ｂ値は、曲率Ｋ＝±２．５と１．５との間の傾斜とし、２ＨＢ値は、Ｋ＝±１．０におけるヒステリシスの幅とした。
<Bending characteristics in pure bending test>
The synthetic resin films used in the examples and comparative examples are vertical (corresponding to the height direction of the packaging bag, hereinafter referred to as the MD direction) × horizontal (corresponding to the width direction of the packaging bag, hereinafter referred to as the TD direction) = 20 cm × The sample was cut into a size of 20 cm, and a bending test of the cut sample was performed using a pure bending tester (KES-FB2-A) manufactured by Kato Tech Co., Ltd. That is, in the MD direction and TD direction of the cut-out test piece, bending of 1 cycle each under bending conditions of equal velocity (deformation speed of 0.5 cm −1 / sec.) In the range of curvature K = ± 2.5 cm −1 A test was conducted, and from the obtained bending hysteresis curve, bending stiffness B (gf · cm 2 / cm) per unit length and hysteresis width 2HB (gf · cm / cm) were calculated. The B value was a slope between the curvatures K = ± 2.5 and 1.5, and the 2HB value was a hysteresis width at K = ± 1.0.
＜鮮度保持効果＞
実施例・比較例で得られた包装袋（二方袋）に、シイタケ、ミカンを収納した場合の鮮度保持効果を以下の方法にて評価した。
［シイタケ］
１５０ｍｍ×２５０ｍｍの大きさの包装袋に、約１００ｇのシイタケを詰めた後に、その包装袋の開口部の左右を内側に折り込むようにして３つ折り状に重ね合わせた後、その重ね合わせた部分を全幅に亘って概ね１８０°捩ることによって、包装袋の開口部を絞り込んだ。そして、そのシイタケを収納した包装袋を、２０℃×６５％ＲＨの雰囲気下にて、４日間（９６時間）放置した後に、収納されたシイタケの状態を、色および臭気の観点から下記の３段階で官能評価した。
＜色＞
○：変色がまったく認められない。
△：わずかな変色が認められる。
×：変色が明確に認められる。
＜臭気＞
○：まったく異臭がしない。
△：わずかに異臭がする。
×：異臭がする。
<Freshness holding effect>
The effect of maintaining freshness when shiitake and orange were stored in the packaging bags (two-way bags) obtained in Examples and Comparative Examples was evaluated by the following method.
[Shiitake]
After packing about 100 g of shiitake in a 150 mm × 250 mm packaging bag, fold the left and right of the opening of the packaging bag inward so as to fold in three folds, and then overlap the overlapped part The opening of the packaging bag was squeezed by twisting approximately 180 ° across the full width. Then, after leaving the packaging bag containing the shiitake in an atmosphere of 20 ° C. × 65% RH for 4 days (96 hours), the state of the stored shiitake is determined from the viewpoint of color and odor in the following 3 The sensory evaluation was performed at the stage.
<Color>
○: no color change is observed at all.
Fair: slight discoloration is observed.
X: Discoloration is clearly recognized.
<Odor>
○: No offensive odor at all.
Δ: Slightly offensive odor
X: There is an offensive odor.
［ミカン］
２３０ｍｍ×３４０ｍｍの大きさの包装袋に、約６５０ｇのミカンを詰めた後に、上記したシイタケの収納時における方法と同様の方法で開口部を絞り込んだ。そして、そのミカンを収納した包装袋を、２０℃×６５％ＲＨの雰囲気下にて４日間（９６時間）放置した後に、収納されたミカンの状態を、味、萎びおよびカビの観点から下記の３段階で官能評価した。
＜味＞
○：収納前のものと変わらない。
△：わずかに炭酸の刺激を感じる。
×：炭酸の刺激がある。
＜萎び＞
○：まったく萎びていない。
△：わずかに萎びている。
×：萎びている。
＜カビ＞
○：カビの発生がまったく認められない。
△：わずかなカビの発生が認められる。
×：カビの発生が明確に認められる。
[Orange]
After packing about 650 g of oranges in a packaging bag of 230 mm × 340 mm in size, the openings were narrowed in the same manner as the above-described method of storing shiitake mushrooms. Then, after leaving the packaging bag containing the oranges for 4 days (96 hours) under an atmosphere of 20 ° C. × 65% RH, the state of the stored oranges is as described below from the viewpoint of taste, wither and mold. The sensory evaluation was performed in three steps.
<Taste>
○: The same as before storage.
Δ: Slightly carbonated
X: There is a stimulus of carbonation.
<Withering>
○: not withered at all.
Δ: Slightly withered.
X: Withered.
<Mold>
○: No occurrence of mold was observed at all.
Δ: slight mold formation is observed.
X: Occurrence of mold is clearly recognized.
＜捩り保持性＞
上記の如くシイタケ、ミカンを収納した際に、包装袋の開口部を捩って絞り込んだ後の形状の保持状態を、目視によって下記の３段階で官能評価した。
○：捩った状態がそのまま保持される。
△：捩った後にわずかに復元してしまう。
×：捩った後に大幅な復元が認められる。
<Holding retention>
As described above, when the shiitake mushroom and the orange were stored, the holding state of the shape after twisting and squeezing the opening of the packaging bag was visually evaluated in the following three stages.
○: The twisted state is maintained as it is.
Δ: Slightly restored after twisting.
X: A significant recovery is observed after twisting.
［実施例１］
厚さ３２μｍのポリエチレンテレフタレートフィルム（１２μｍの二軸延伸ポリエチレンテレフタレートフィルムからなる基材層に２０μｍのポリエチレンテレフタレート樹脂からなるヒートシール層を積層したもの（中本パックス株式会社製ＨＳ−ＰＥＴ）を二つ折りして、その左右を約２３０℃の温度で５ｍｍ幅でヒートシールすることによって、上部を開口した長方形状の二方袋を製造した。なお、二方袋は、シイタケの鮮度保持試験用の高さ（袋の深さ方向の長さ）×幅＝約１５０ｍｍ×２５０ｍｍの大きさのものと、ミカンの鮮度保持試験用の高さ×幅＝約２３０ｍｍ×３４０ｍｍの大きさのものの２種類を作成した。一方、二方袋の製造に使用した合成樹脂フィルムの曲げ特性を、上記した方法によって測定した。また、得られた二方袋の鮮度保持特性を、上記した方法によって評価した。得られた結果を、合成樹脂フィルムの曲げ特性の測定結果とともに表１に示す。
Example 1
A 32 μm thick polyethylene terephthalate film (12 μm of a biaxially oriented polyethylene terephthalate film laminated with a heat seal layer of 20 μm polyethylene terephthalate resin (HS-PET manufactured by Nakamoto Pax Co., Ltd.) is folded in half Then, by heat-sealing the left and right sides at a temperature of about 230 ° C. to a width of 5 mm, a rectangular two-sided bag having an open upper portion was manufactured. (Size in the depth direction of the bag) × width = about 150mm × 250mm size and height × width = about 230mm × 340mm size for freshness retention test of oranges On the other hand, the bending properties of the synthetic resin film used for the production of the two-sided bag were measured by the method described above. The freshness-preserving properties of the bag were evaluated by the method described above. The results obtained are shown in Table 1 together with the measurement results of the flexural properties of the synthetic resin film.
［実施例２］
包装袋を原料の合成樹脂フィルムを、厚さ２０μｍの二軸延伸ポリエチレンテレフタレートフィルム（東洋紡株式会社製ＤＥ０３６）に変更し、ヒートシール温度を約１４０℃とした以外は、実施例１と同様にして包装袋を製造した。そして、得られた二方袋の鮮度保持特性を、実施例１と同様な方法によって評価した。また、二方袋の製造に用いた合成樹脂フィルムの曲げ特性を、実施例１と同様な方法によって測定した。二方袋の鮮度保持特性の評価結果を、合成樹脂フィルムの曲げ特性の測定結果とともに表１に示す。
Example 2
The same as Example 1, except that the packaging bag was changed to a 20 μm thick biaxially stretched polyethylene terephthalate film (DE 036 by Toyobo Co., Ltd.) and the heat seal temperature was about 140 ° C. A packaging bag was manufactured. And the freshness retention characteristic of the obtained two-sided bag was evaluated by the same method as Example 1. Moreover, the bending characteristics of the synthetic resin film used for manufacture of a two-sided bag were measured by the same method as Example 1. The evaluation results of the freshness holding characteristics of the two-sided bag are shown in Table 1 together with the measurement results of the bending characteristics of the synthetic resin film.
［実施例３］
包装袋を原料の合成樹脂フィルムを、厚さ３０μｍの二軸延伸ポリエチレンテレフタレートフィルム（東洋紡株式会社製ＤＥ０３６）に変更した以外は、実施例２と同様にして包装袋を製造した。そして、得られた二方袋の鮮度保持特性を、実施例１と同様な方法によって評価した。また、二方袋の製造に用いた合成樹脂フィルムの曲げ特性を、実施例１と同様な方法によって測定した。二方袋の鮮度保持特性の評価結果を、合成樹脂フィルムの曲げ特性の測定結果とともに表１に示す。
[Example 3]
A packaging bag was produced in the same manner as in Example 2 except that the packaging bag was changed to a 30 μm thick biaxially stretched polyethylene terephthalate film (DE 036 manufactured by Toyobo Co., Ltd.) as a raw material synthetic resin film. And the freshness retention characteristic of the obtained two-sided bag was evaluated by the same method as Example 1. Moreover, the bending characteristics of the synthetic resin film used for manufacture of a two-sided bag were measured by the same method as Example 1. The evaluation results of the freshness holding characteristics of the two-sided bag are shown in Table 1 together with the measurement results of the bending characteristics of the synthetic resin film.
［実施例４］
包装袋を原料の合成樹脂フィルムを、厚さ２５μｍのポリ乳酸フィルム（三菱樹脂株式会社社製ＳＧ１０６）に変更した以外は、実施例２と同様にして包装袋を製造した。そして、得られた二方袋の鮮度保持特性を、実施例１と同様な方法によって評価した。また、二方袋の製造に用いた合成樹脂フィルムの曲げ特性を、実施例１と同様な方法によって測定した。二方袋の鮮度保持特性の評価結果を、合成樹脂フィルムの曲げ特性の測定結果とともに表１に示す。
Example 4
A packaging bag was manufactured in the same manner as Example 2, except that the packaging bag was changed to a 25 μm-thick polylactic acid film (SG106 manufactured by Mitsubishi Resins Co., Ltd.) as a raw material synthetic resin film. And the freshness retention characteristic of the obtained two-sided bag was evaluated by the same method as Example 1. Moreover, the bending characteristics of the synthetic resin film used for manufacture of a two-sided bag were measured by the same method as Example 1. The evaluation results of the freshness holding characteristics of the two-sided bag are shown in Table 1 together with the measurement results of the bending characteristics of the synthetic resin film.
［実施例５］
包装袋を原料の合成樹脂フィルムを、厚さ３５μｍのポリ乳酸フィルム（三菱樹脂株式会社社製ＳＧ１０６）に変更した以外は、実施例２と同様にして包装袋を製造した。そして、得られた二方袋の鮮度保持特性を、実施例１と同様な方法によって評価した。また、二方袋の製造に用いた合成樹脂フィルムの曲げ特性を、実施例１と同様な方法によって測定した。二方袋の鮮度保持特性の評価結果を、合成樹脂フィルムの曲げ特性の測定結果とともに表１に示す。
[Example 5]
A packaging bag was manufactured in the same manner as in Example 2, except that the packaging bag was changed to a polylactic acid film (SG 106 manufactured by Mitsubishi Resins Co., Ltd.) having a thickness of 35 μm. And the freshness retention characteristic of the obtained two-sided bag was evaluated by the same method as Example 1. Moreover, the bending characteristics of the synthetic resin film used for manufacture of a two-sided bag were measured by the same method as Example 1. The evaluation results of the freshness holding characteristics of the two-sided bag are shown in Table 1 together with the measurement results of the bending characteristics of the synthetic resin film.
［比較例１］
包装袋を原料の合成樹脂フィルムを、厚さ２０μｍの二軸延伸ポリプロピレン（ＯＰＰ）フィルム（東洋紡株式会社製Ｐ５５６２）に変更した以外は、実施例２と同様にして包装袋を製造した。そして、得られた二方袋の鮮度保持特性を、実施例１と同様な方法によって評価した。また、二方袋の製造に用いた合成樹脂フィルムの曲げ特性を、実施例１と同様な方法によって測定した。二方袋の鮮度保持特性の評価結果を、合成樹脂フィルムの曲げ特性の測定結果とともに表１に示す。
Comparative Example 1
A packaging bag was manufactured in the same manner as Example 2, except that the packaging bag was changed to a 20 μm thick biaxially oriented polypropylene (OPP) film (P5562 manufactured by Toyobo Co., Ltd.) as a raw material synthetic resin film. And the freshness retention characteristic of the obtained two-sided bag was evaluated by the same method as Example 1. Moreover, the bending characteristics of the synthetic resin film used for manufacture of a two-sided bag were measured by the same method as Example 1. The evaluation results of the freshness holding characteristics of the two-sided bag are shown in Table 1 together with the measurement results of the bending characteristics of the synthetic resin film.
［比較例２］
包装袋を原料の合成樹脂フィルムを、厚さ４０μｍの二軸延伸ポリプロピレン（ＯＰＰ）フィルム（東洋紡株式会社製Ｐ５５６２）に変更した以外は、実施例２と同様にして包装袋を製造した。そして、得られた二方袋の鮮度保持特性を、実施例１と同様な方法によって評価した。また、二方袋の製造に用いた合成樹脂フィルムの曲げ特性を、実施例１と同様な方法によって測定した。二方袋の鮮度保持特性の評価結果を、合成樹脂フィルムの曲げ特性の測定結果とともに表１に示す。
Comparative Example 2
A packaging bag was manufactured in the same manner as Example 2, except that the packaging bag was changed to a 40 μm thick biaxially oriented polypropylene (OPP) film (P5562 manufactured by Toyobo Co., Ltd.) as a raw material synthetic resin film. And the freshness retention characteristic of the obtained two-sided bag was evaluated by the same method as Example 1. Moreover, the bending characteristics of the synthetic resin film used for manufacture of a two-sided bag were measured by the same method as Example 1. The evaluation results of the freshness holding characteristics of the two-sided bag are shown in Table 1 together with the measurement results of the bending characteristics of the synthetic resin film.
［比較例２］
包装袋を原料の合成樹脂フィルムを、厚さ１２μｍの二軸延伸ポリエチレンテレフタレートフィルム（東洋紡株式会社製Ｅ５１００）に変更するとともにヒートシール温度を約２６０℃とした以外は、実施例１と同様にして包装袋を製造した。そして、得られた二方袋の鮮度保持特性を、実施例１と同様な方法によって評価した。また、二方袋の製造に用いた合成樹脂フィルムの曲げ特性を、実施例１と同様な方法によって測定した。二方袋の鮮度保持特性の評価結果を、合成樹脂フィルムの曲げ特性の測定結果とともに表１に示す。
Comparative Example 2
Same as Example 1 except that the packaging bag is changed to a 12 μm thick biaxially stretched polyethylene terephthalate film (E5100 manufactured by Toyobo Co., Ltd.) and the heat seal temperature is set to about 260 ° C. A packaging bag was manufactured. And the freshness retention characteristic of the obtained two-sided bag was evaluated by the same method as Example 1. Moreover, the bending characteristics of the synthetic resin film used for manufacture of a two-sided bag were measured by the same method as Example 1. The evaluation results of the freshness holding characteristics of the two-sided bag are shown in Table 1 together with the measurement results of the bending characteristics of the synthetic resin film.
表１から、純曲げ試験における曲げ剛性が請求項１の範囲内にある合成樹脂フィルムによって製造された実施例１〜５の包装袋は、開口部の捩れ保持性が良好であるとともに、シイタケ、ミカンの鮮度保持機能に優れていることが分かる。これに対して、純曲げ試験における曲げ剛性が請求項１の範囲から外れた合成樹脂フィルムによって製造された比較例１〜３の包装袋は、開口部の捩れ保持性が不良であったり、シイタケ、ミカンの鮮度保持機能が不良であったりすることが分かる。 From Table 1, the packaging bags of Examples 1 to 5 manufactured by the synthetic resin film having a bending rigidity in the pure bending test within the range of claim 1 have good twist retention of the opening and shiitake, It can be seen that the freshness retention function of oranges is excellent. On the other hand, in the packaging bags of Comparative Examples 1 to 3 manufactured by the synthetic resin films whose bending rigidity in the pure bending test is out of the range of claim 1, the twist retention property of the opening portion is poor, , It can be seen that the freshness holding function of oranges is poor.
本発明に係る包装袋は、上記の如く優れた効果を奏するものであるため、青果物を簡単に収納できる鮮度保持用の包装袋として好適に用いることができる。また、本発明に係る鮮度保持用の包装袋は、その優れた開口部の捩れ保持性から、青果物の鮮度保持用の包装袋としての利用のみならず、青果物を入れた状態で電子レンジ加熱調理が可能である。加熱時に青果物から発生する水蒸気による袋内の加圧状態と捩れた開口部からの蒸気抜きのバランスが優れており、蒸気鍋と同等の調理が可能であり、繰り返し利用できる点においても、経済的に優れた包装袋といえる。 The packaging bag according to the present invention exhibits excellent effects as described above, and can therefore be suitably used as a packaging bag for maintaining freshness that can easily store fruits and vegetables. In addition, the packaging bag for maintaining freshness according to the present invention can be used not only as a packaging bag for maintaining freshness of fruits and vegetables but also by microwave oven cooking with fruits and vegetables inserted, from the excellent twist retention of the opening. Is possible. The balance of pressure in the bag by steam generated from fruits and vegetables at the time of heating and steam release from the twisted opening is excellent, and it is possible to cook as much as a steam pot, and it is economical in that it can be used repeatedly. It is an excellent packaging bag.
Claims (3)
合成樹脂フィルムの純曲げ試験における曲げ剛性が、縦方向、横方向ともに、０．０２ｇｆ・ｃｍ２／ｃｍ以上０．１８ｇｆ・ｃｍ２／ｃｍ以下であることを特徴とする青果物の鮮度保持用包装袋。 A packaging bag for maintaining the freshness of fruits and vegetables, which is formed of a synthetic resin film and holds the stored state by twisting the opening in a state where the fruits and vegetables are stored,
A package for preserving freshness of fruits and vegetables characterized in that the bending rigidity in a pure bending test of the synthetic resin film is 0.02 gf · cm 2 / cm or more and 0.18 gf · cm 2 / cm or less in both longitudinal and transverse directions. bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017074556A JP6967762B2 (en) | 2017-04-04 | 2017-04-04 | Packaging bag for keeping fruits and vegetables fresh |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017074556A JP6967762B2 (en) | 2017-04-04 | 2017-04-04 | Packaging bag for keeping fruits and vegetables fresh |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2018177243A true JP2018177243A (en) | 2018-11-15 |
| JP6967762B2 JP6967762B2 (en) | 2021-11-17 |
Family
ID=64282671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017074556A Active JP6967762B2 (en) | 2017-04-04 | 2017-04-04 | Packaging bag for keeping fruits and vegetables fresh |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6967762B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020093848A (en) * | 2018-11-30 | 2020-06-18 | 株式会社ベルグリーンワイズ | Freshness-keeping storage bag for fruit and vegetable |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5474700U (en) * | 1977-11-01 | 1979-05-28 | ||
| US4267768A (en) * | 1976-09-20 | 1981-05-19 | David M. Cieslak | Process for fabricating a reclosable bag |
| JPH0848382A (en) * | 1994-08-03 | 1996-02-20 | Dainippon Printing Co Ltd | Individual packaging for fresh plants |
| JP2000128233A (en) * | 1998-10-19 | 2000-05-09 | Kanebo Ltd | Production of extracting filter or extracting bag for luxury drink |
| JP2008054840A (en) * | 2006-08-30 | 2008-03-13 | Asahi Kasei Fibers Corp | FILTER FILTER MATERIAL AND METHOD FOR PRODUCING FOOD-INCLOSED PAG |
| JP2008133017A (en) * | 2006-11-29 | 2008-06-12 | Sumitomo Bakelite Co Ltd | Packaging with fruits and vegetables and packaging method for packaging with fruits and vegetables |
| JP2014024597A (en) * | 2012-07-30 | 2014-02-06 | Sumitomo Bakelite Co Ltd | Packing bag for fruit and vegetable, and fruit and vegetable packing body |
-
2017
- 2017-04-04 JP JP2017074556A patent/JP6967762B2/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4267768A (en) * | 1976-09-20 | 1981-05-19 | David M. Cieslak | Process for fabricating a reclosable bag |
| JPS5474700U (en) * | 1977-11-01 | 1979-05-28 | ||
| JPH0848382A (en) * | 1994-08-03 | 1996-02-20 | Dainippon Printing Co Ltd | Individual packaging for fresh plants |
| JP2000128233A (en) * | 1998-10-19 | 2000-05-09 | Kanebo Ltd | Production of extracting filter or extracting bag for luxury drink |
| JP2008054840A (en) * | 2006-08-30 | 2008-03-13 | Asahi Kasei Fibers Corp | FILTER FILTER MATERIAL AND METHOD FOR PRODUCING FOOD-INCLOSED PAG |
| JP2008133017A (en) * | 2006-11-29 | 2008-06-12 | Sumitomo Bakelite Co Ltd | Packaging with fruits and vegetables and packaging method for packaging with fruits and vegetables |
| JP2014024597A (en) * | 2012-07-30 | 2014-02-06 | Sumitomo Bakelite Co Ltd | Packing bag for fruit and vegetable, and fruit and vegetable packing body |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020093848A (en) * | 2018-11-30 | 2020-06-18 | 株式会社ベルグリーンワイズ | Freshness-keeping storage bag for fruit and vegetable |
| JP2021046259A (en) * | 2018-11-30 | 2021-03-25 | 株式会社ベルグリーンワイズ | Freshness-keeping storage bag for fruit and vegetable |
| JP2021046260A (en) * | 2018-11-30 | 2021-03-25 | 株式会社ベルグリーンワイズ | Freshness-keeping storage bag for fruit and vegetable |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6967762B2 (en) | 2021-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2152510A1 (en) | Biodegradable multilayer polymeric films and packages produced therefrom | |
| JP2016113172A (en) | Food packaging sheet, food packaging bag, and food package | |
| EP2094787A2 (en) | Package applications using polylactic acid film | |
| JP7460008B2 (en) | Polyester film and packaging for freshness preservation | |
| JP6916566B1 (en) | Sheets for packaging fruits and vegetables | |
| JP7018421B2 (en) | Anti-fog packaging bag for fruits and vegetables | |
| JP2018177243A (en) | Packaging bag for keeping freshness of fruits and vegetables | |
| JP7296608B2 (en) | Storage bag for keeping fruits and vegetables fresh | |
| JP6448840B1 (en) | Storage bag for freshness preservation of fruits and vegetables | |
| JPH0323332B2 (en) | ||
| JP4876473B2 (en) | Packaging bag | |
| JP6570021B1 (en) | Storage bag for freshness preservation of fruits and vegetables | |
| JP6739123B1 (en) | Film roll for packaging fruits and vegetables and packaging bag for keeping freshness of fruits and vegetables | |
| JP4802693B2 (en) | Packaging film and package | |
| CN104212088A (en) | Toxic-free thermal-shrinking thin film | |
| JPS6211049A (en) | Freshness retaining of vegetable and fruit | |
| JP6875765B1 (en) | Film rolls for packaging fruits and vegetables and packaging bags for keeping fruits and vegetables fresh | |
| JP2020179914A (en) | Fruit and vegetable packaging body, and transportation and storage methods of fruits and vegetables | |
| JP2022029033A (en) | Fruit and vegetable packaging film roll and fruit and vegetable freshness keeping packaging bag | |
| JP6570020B1 (en) | Storage bag for freshness preservation of fruits and vegetables | |
| JP2007290759A (en) | Packing bag for vegetable and fruit and package of vegetable and fruit | |
| JP2022119289A (en) | freshness keeping film | |
| JP6570022B1 (en) | Storage bag for freshness preservation of fruits and vegetables | |
| JP2025142988A (en) | Freshness-preserving bag for fruits and vegetables, package containing fruits and vegetables, and method for preserving freshness of fruits and vegetables | |
| JP6875764B1 (en) | Film rolls for packaging fruits and vegetables and packaging bags for keeping fruits and vegetables fresh |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20200401 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20210301 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20210331 |
|
| A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20210528 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210729 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210921 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20211019 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6967762 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |