JP2976769B2 - Vegetables freshness packaging method - Google Patents
Vegetables freshness packaging methodInfo
- Publication number
- JP2976769B2 JP2976769B2 JP23802693A JP23802693A JP2976769B2 JP 2976769 B2 JP2976769 B2 JP 2976769B2 JP 23802693 A JP23802693 A JP 23802693A JP 23802693 A JP23802693 A JP 23802693A JP 2976769 B2 JP2976769 B2 JP 2976769B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- vegetables
- packaging
- fruits
- packaging method
- 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.)
- Expired - Fee Related
Links
Landscapes
- Storage Of Fruits Or Vegetables (AREA)
- Packages (AREA)
- Wrappers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、青果物の鮮度を長期に
保つことが可能な包装方法に関し、特にプラスチック容
器の開口部を覆う蓋材のガス透過度を調整することによ
り、包装内のガス濃度を調整して青果物の鮮度保持を図
る青果物の鮮度保持包装方法に関する。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging method capable of maintaining the freshness of fruits and vegetables for a long period of time, and more particularly to a plastic container.
By adjusting the gas permeability of the lid covering the vessel opening
To maintain the freshness of fruits and vegetables by adjusting the gas concentration in the packaging.
And a method for preserving freshness of fruits and vegetables.
【０００２】[0002]
【従来の技術】青果物の鮮度保持包装として、包装内の
ガス組成を調整して、青果物の鮮度保持を図る方法があ
る。これは、青果物が一般に、通常の空気よりも低酸
素、高二酸化炭素のガス組成下におかれると、鮮度が保
持されるという性質を利用し、青果物の呼吸量にあわせ
て選定したガス透過度の包材で青果物を包装することに
より、包装内のガス組成を調整して、青果物の鮮度保持
を図るというものである。2. Description of the Related Art As a package for maintaining the freshness of fruits and vegetables, there is a method of maintaining the freshness of fruits and vegetables by adjusting the gas composition in the package. This is based on the fact that freshness is generally maintained when fruits and vegetables are placed in a gas composition with lower oxygen and higher carbon dioxide than ordinary air. By packaging the fruits and vegetables with the packaging material, the gas composition in the packaging is adjusted to maintain the freshness of the fruits and vegetables.
【０００３】このとき、青果物の呼吸量にあわせた包材
ガス透過度の選定が重要となるが、青果物の呼吸量は、
青果物の種類、品種、収穫時期、保存状態等により、様
々に異なり、よって幅広いガス透過度を持つ包材が要求
され、その範囲は酸素透過度で数千〜数万ｃｍ3 ／ｍ2
・２４ｈｒ・ａｔｍといわれる。そこで、そのような範
囲のガス透過度を有する包材の開発が盛んに行われてい
るが、その包装形態は、これまでほとんどが袋であっ
た。ところが、包装の内容物が物理的損傷を受けやすい
ものである場合や輸送上、商品ディスプレイ上の観点か
ら、包材に一定以上の強度を要求される場合がある。そ
ういった場合に、袋の形態では、ガス透過と強度の両方
を満足し得ないという問題があった。[0003] At this time, it is important to select the packaging material gas permeability according to the respiratory volume of the fruits and vegetables.
Depending on the type, variety, harvest time, preservation state, etc. of the fruits and vegetables, packaging materials having a wide range of gas permeability are required, and the range is from several thousand to several tens of thousands of cm 3 / m 2 in terms of oxygen permeability.
・ It is said to be 24hr · atm. Thus, packaging materials having a gas permeability in such a range have been actively developed, but most of the packaging forms have been bags. However, there are cases where the packaging material is required to have a certain strength or more from the viewpoints of the contents of the package being easily susceptible to physical damage, transportation, and display of goods. In such a case, in the form of a bag, there is a problem that both gas permeation and strength cannot be satisfied.
【０００４】[0004]
【発明が解決しようとする課題】本発明では、青果物の
鮮度保持に必要なガス透過量をゆうしながら、かつ内容
物保護性が十分であり、輸送時の積み重ねも可能であ
り、さらにディスプレイにおける見栄えも良好な青果物
の鮮度保持包装方法を提供することを目的とする。 According to the present invention, the amount of gas permeation necessary for maintaining the freshness of the fruits and vegetables is increased, the contents are sufficiently protected, the stacking during transportation is possible, and furthermore, in the display, Good looking fruits and vegetables
It is an object of the present invention to provide a freshness preserving packaging method.
【０００５】[0005]
【課題を解決するための手段】上記問題点を解決するた
めに、本発明は、 開口部を有するプラスチック容器と
該容器内に青果物を収納し、前記開口部の周辺のフラン
ジ部をプラスチックフィルムからなる蓋材を熱融着し、
包装する包装方法において、前記蓋材は、内層がポリエ
チレン層、外層が延伸ポリプロピレン層からなる２層以
上の多層フィルムからなり、かつ孔径が数μｍ〜数百μ
ｍで、前記内層を貫通しない未貫通孔を形成し、酸素透
過度が１０，０００〜１２０，０００ｃｍ 3 ／ｍ 2 ・２
４ｈｒ・ａｔｍの範囲としたことを特徴とする青果物の
鮮度保持包装方法包装方法である。 SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a plastic container having an opening, a fruit and vegetables stored in the container, and a furan around the opening.
The lid is heat-sealed with a lid made of plastic film,
In the packaging method for packaging, the inner layer of the lid material is made of polyether.
At least two layers consisting of a styrene layer and an outer layer consisting of a stretched polypropylene layer
Consists of the above multilayer film and has a pore size of several μm to several hundred μ
m, an unpenetrated hole that does not penetrate the inner layer is formed,
Excess is 10,000 to 120,000 cm 3 / m 2 · 2
Of fruits and vegetables characterized by the range of 4 hr · atm
Freshness preservation packaging method This is a packaging method.
【０００６】[0006]
【作用】本発明は、開口部を有するプラスチック容器と
該容器の開口部の周辺のフランジ部で蓋材を熱融着し、
青果物を包装する方法において、該蓋材が内層がポリエ
チレン層、外層が延伸ポリプロピレン層からなる２層以
上の多層フィルムからなり、かつ孔径が数μｍ〜数百μ
ｍで、前記最内層を貫通しない未貫通孔を形成し、酸素
透過度が１０，０００〜１２０，０００ｃｍ 3 ／ｍ 2 ・
２４ｈｒ・ａｔｍの範囲としたことにより、通常使用さ
れているフィルムからなるの多層フィルムでも一定の酸
素透過度とすることができ、青果物の鮮度が保持される
と共に、内容物の保護性があり、輸送時の積み重ねも可
能とする。According to the present invention , a lid is thermally fused to a plastic container having an opening and a flange around the opening of the container.
In a method of packaging fruits and vegetables, the lid material is made of polyether.
At least two layers consisting of a styrene layer and an outer layer consisting of a stretched polypropylene layer
Consists of the above multilayer film and has a pore size of several μm to several hundred μ
m, an unpenetrated hole that does not penetrate the innermost layer is formed,
The permeability 10,000~120,000cm 3 / m 2 ·
By setting it to the range of 24 hr · atm,
Even if it is a multilayer film consisting of
The freshness of the fruits and vegetables can be maintained, the contents can be protected, and the products can be stacked during transportation.
【０００７】[0007]
【実施例】以下に本発明の実施例を示す。 〈実施例１〉本発明の実施例である包材は、図１に示す
ように、各層の厚さがそれぞれ１ｍｍであるポリプロピ
レン層３とポリエチレン層４の２層シートを真空成形し
て得た開口部面積０．０３ｍ2 、深さ５０ｍｍの立法体
プラスチック容器本体１と、図２に示すように、各層の
厚さが２０μｍである延伸ポリプロピレン層５とポリエ
チレン層６の２層フィルムに孔径数μｍ〜数十μｍの未
貫通の微細孔７を形成して得た蓋材２から成る。蓋材フ
ィルムの未貫通孔は、挟圧ローラー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ラー間を通過させ
て形成し、酸素透過度は１２，０００ｃｍ3 ／ｍ2 ・２
４ｈｒ・ａｔｍに調整したものである。Examples of the present invention will be described below. <Example 1> A packaging material according to an example of the present invention was obtained by vacuum forming a two-layer sheet of a polypropylene layer 3 and a polyethylene layer 4 each having a thickness of 1 mm, as shown in FIG. A cubic plastic container body 1 having an opening area of 0.03 m 2 and a depth of 50 mm, and as shown in FIG. 2, a two-layer film of a stretched polypropylene layer 5 and a polyethylene layer 6 each having a thickness of 20 μm, and The cover member 2 is obtained by forming a non-penetrated fine hole 7 of μm to several tens μm. The non-through hole of the lid film is formed by passing between the rollers having one surface of the pressure roller coated with diamond particles, and has an oxygen permeability of 12,000 cm 3 / m 2 · 2.
It is adjusted to 4 hr · atm.
【０００８】〈実施例２〉本発明の実施例である包材
は、図１に示すように、各層の厚さがそれぞれ１ｍｍで
あるポリプロピレン層３とポリエチレン層４の２層シー
トを真空成形して得た開口部面積０. ０３ｍ2 、深さ５
０ｍｍの立法体プラスチック容器本体１と、図２に示す
ように、各層の厚さが２０μｍである延伸ポリプロピレ
ン層５とポリエチレン層６の２層フィルムに孔径数μｍ
〜数十μｍの未貫通の微細孔７を形成して得た蓋材２か
ら成る。蓋材フィルムの未貫通孔は、挟圧ローラーの一
方の表面にダイヤモンド粒子をコーティングしたローラ
ー間を通過させて形成し、酸素透過度は１２０, ０００
ｃｍ3 ／ｍ2 ・２４ｈｒ・ａｔｍに調整したものであ
る。<Embodiment 2> As shown in FIG. 1, a packaging material according to an embodiment of the present invention is obtained by vacuum forming a two-layer sheet of a polypropylene layer 3 and a polyethylene layer 4 each having a thickness of 1 mm. Opening area 0.03 m 2 , depth 5
A cubic plastic container body 1 of 0 mm and a two-layer film of a stretched polypropylene layer 5 and a polyethylene layer 6 each having a thickness of 20 μm as shown in FIG.
It is composed of a lid material 2 obtained by forming a non-penetrated fine hole 7 of up to several tens μm. The non-penetrating hole of the lid film is formed by passing between the rollers having one surface of the pressing roller coated with diamond particles, and has an oxygen permeability of 120,000.
It was adjusted to cm 3 / m 2 · 24 hr · atm.
【０００９】[0009]
【００１０】〈比較例１〉本発明の比較例である包材
は、図１に示すように、各層の厚さがそれぞれ１ｍｍで
あるポリプロピレン層３とポリエチレン層４の２層シー
トを真空成形して得た開口部面積０. ０３ｍ2 、深さ５
０ｍｍの立方体プラスチック容器本体１と、図４に示す
ように、各層の厚さが２０μｍである延伸ポリプロピレ
ン層１１とポリエチレン層１２の２層フィルムである蓋
材２とから成る。蓋材フィルムの酸素透過度は１, ５０
０ｃｍ3 ／ｍ2 ・２４ｈｒ・ａｔｍである。<Comparative Example 1> As shown in FIG. 1, a packaging material as a comparative example of the present invention is obtained by vacuum forming a two-layer sheet of a polypropylene layer 3 and a polyethylene layer 4 each having a thickness of 1 mm. Opening area 0.03 m 2 , depth 5
As shown in FIG. 4, a cubic plastic container main body 1 having a thickness of 0 mm and a lid member 2 which is a two-layer film of a stretched polypropylene layer 11 and a polyethylene layer 12 each having a thickness of 20 μm. The oxygen permeability of the lidding film is 1,50
0 cm 3 / m 2 · 24 hr · atm.
【００１１】〈比較例２〉本発明の比較例である包材
は、図１に示すように、各層の厚さがそれぞれ１ｍｍで
あるポリプロピレン層３とポリエチレン層４の２層シー
トを真空成形して得た開口部面積０. ０３ｍ2 、深さ５
０ｍｍの立方体プラスチック容器本体１と、図５に示す
ように、各層の厚さが２０μｍである延伸ポリプロピレ
ン層１３とポリエチレン層１４の２層フィルムに孔径３
ｍｍの針孔１５を１包材当たり３個設けた蓋材２とから
成る。蓋材フィルムの酸素透過度は１５０, ０００ｃｍ
3 ／ｍ2 ・２４ｈｒ・ａｔｍである。Comparative Example 2 As shown in FIG. 1, a packaging material according to a comparative example of the present invention was formed by vacuum forming a two-layer sheet of a polypropylene layer 3 and a polyethylene layer 4 each having a thickness of 1 mm. Opening area 0.03 m 2 , depth 5
As shown in FIG. 5, a two-layer film of a 0 mm cubic plastic container body 1 and a stretched polypropylene layer 13 and a polyethylene layer 14 each having a thickness of 20 μm has a pore size of 3 mm.
and a lid material 2 provided with three needle holes 15 of 3 mm per package material. The oxygen permeability of the lidding film is 150,000cm
3 / m 2 · 24 hr · atm.
【００１２】実施例１、２及び比較例１、２の蓋材を用
いてカット野菜、しめじの保存試験を行った。試験は実
施例１の容器に８０ｇのカット野菜を、また実施例２の
容器に１５０ｇのしめじを、さらに比較例１、２の容器
には、それぞれ８０ｇのカット野菜、１５０ｇのしめじ
を詰めて、密封シール後１０℃下に保存して行った。そ
の結果を（表１）、（表２）に示す。 Using the lids of Examples 1 and 2 and Comparative Examples 1 and 2, a storage test of cut vegetables and shimeji was performed. Test cut vegetables 80g in the container of Example 1, also the shimeji of 150g to the container of Example 2, further containers of Comparative Examples 1 and 2
Each was packed with 80 g of cut vegetables and 150 g of shimeji, and hermetically sealed and stored at 10 ° C. The results are shown in (Table 1) and (Table 2) .
【００１３】[0013]
【表１】 [Table 1]
【００１４】[0014]
【表２】 [Table 2]
【００１５】[0015]
【００１６】カット野菜の保存試験では、実施例１の蓋
材を用いた包装方法が全体的に鮮度保持が良好であった
のに対して、比較例１の蓋材を用いた包装方法では異臭
の発生がみられ、比較例２の蓋材を用いた包装方法では
褐変がみられた。またしめじの保存試験では、実施例２
の蓋材を用いた包装方法が最も鮮度保持が良好であった
のに対して、比較例１の蓋材を用いた包装方法では異臭
の発生がみられ、比較例２の蓋材を用いた包装方法では
萎凋がみられた。In the storage test of the cut vegetables , the lid of Example 1 was used.
Whereas the packaging method using the timber there is overall freshness retained was good, it was observed the generation of packaging methods odor In using the cover material of Comparative Example 1, use the cover material of Comparative Example 2 Browning was observed in the packaging method used. In the preservation test of shimeji, Example 2 was used.
Whereas the packaging method using the lid member was good most freshness, generation of packaging methods odor In using the cover material of Comparative Example 1 was observed, with a lid member of Comparative Example 2 Wilting was observed in the packaging method .
【００１７】[0017]
【発明の効果】本発明の包装方法は、本体をプラスチッ
クハード容器とし、蓋材を最内層が熱融着性の樹脂を用
いた２層以上の多層フィルムからなり、かつ孔径が数μ
ｍ〜数百μｍで、前記最内層を貫通しない未貫通孔を形
成し、酸素透過度が１０，０００〜１２０，０００ｃｍ
3 ／ｍ 2 ・２４ｈｒ・ａｔｍの範囲としたことにより、
通常の多層フィルムでも一定の酸素透過度とすることが
できるので、内容物の保護性が増し、輸送時の積み重ね
梱包も可能となり、また小売り店におけるディスプレイ
も容易となるといったプラスチックハード容器の利点を
もち、かつ内容物の鮮度保持効果も発揮される。According to the packaging method of the present invention, the main body is made of a plastic hard container, and the lid is made of a heat-fusible resin for the innermost layer.
Consisting of a multi-layer film of two or more layers
m to several hundred μm, and form a non-through hole that does not penetrate the innermost layer.
Oxygen permeability is 10,000-120,000cm
By setting the range of 3 / m 2 · 24 hr · atm,
Even with ordinary multilayer films, it is possible to maintain a constant oxygen permeability
Because it increases the protection of the contents, stacked packing during transportation possible and will also have the advantage of plastic hard container such as a display can be facilitated in a retail store, and is also exert freshness retaining effect of the contents .
【００１８】[0018]
【図１】本発明の一実施例を示す青果物の鮮度保持包装
方法に用いる容器の断面説明図である。FIG. 1 shows a package for preserving freshness of fruits and vegetables, showing one embodiment of the present invention.
It is sectional explanatory drawing of the container used for a method .
【図２】本発明に用いる未貫通孔の開いたプラスチック
フィルムの蓋材の断面説明図である。FIG. 2 is an explanatory cross-sectional view of a plastic film lid member having a non-through hole used in the present invention.
【図３】 比較例１で用いた蓋材の断面説明図である。 FIG. 3 is an explanatory cross-sectional view of a lid used in Comparative Example 1.
【図４】 比較例２で用いた蓋材の断面説明図である。 FIG. 4 is an explanatory sectional view of a lid material used in Comparative Example 2.
１・・容器本体 ２・・蓋材 ３・・ポリプロピレ
ン層（本体） ４・・ポリエチレン層 ５、１１、１３・・延伸ポリ
プロピレン層 ６、１２、１４・・ポリエチレン層 ７・・未貫通の
微細孔 １５・・針孔1. Container body 2. Lid material 3. Polypropylene layer (main body) 4. Polyethylene layer 5, 11, 13 ... Stretched polypropylene layer 6, 12, 14 ... Polyethylene layer 7, Unperforated micropores 15. Needle hole
フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) A23B 7/148 A23B 7/00 101 B65D 65/40 B65D 81/26 Continuation of the front page (58) Field surveyed (Int. Cl. 6 , DB name) A23B 7/148 A23B 7/00 101 B65D 65/40 B65D 81/26
Claims (1)
内に青果物を収納し、前記開口部の周辺のフランジ部を
プラスチックフィルムからなる蓋材を熱融着し、包装す
る包装方法において、前記蓋材は、内層がポリエチレン
層、外層が延伸ポリプロピレン層からなる２層以上の多
層フィルムからなり、かつ孔径が数μｍ〜数百μｍで、
前記内層を貫通しない未貫通孔を形成し、酸素透過度が
１０，０００〜１２０，０００ｃｍ 3 ／ｍ 2 ・２４ｈｒ
・ａｔｍの範囲としたことを特徴とする青果物の鮮度保
持包装方法。 1. A plastic container having an opening and fruits and vegetables stored in the container, and a flange around the opening is formed.
Heat-sealing lid material made of plastic film and packaging
In the packaging method, the lid material has an inner layer made of polyethylene.
And two or more layers in which the outer layer and the outer layer are made of a stretched polypropylene layer.
Consisting of a layer film and having a pore size of several μm to several hundred μm,
A non-through hole that does not penetrate the inner layer is formed, and the oxygen permeability is
10,000 ~ 120,000cm 3 / m 2 · 24hr
・ Maintaining freshness of fruits and vegetables characterized by being in the atm range
Holding packaging method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23802693A JP2976769B2 (en) | 1993-09-24 | 1993-09-24 | Vegetables freshness packaging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23802693A JP2976769B2 (en) | 1993-09-24 | 1993-09-24 | Vegetables freshness packaging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0787884A JPH0787884A (en) | 1995-04-04 |
| JP2976769B2 true JP2976769B2 (en) | 1999-11-10 |
Family
ID=17024067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23802693A Expired - Fee Related JP2976769B2 (en) | 1993-09-24 | 1993-09-24 | Vegetables freshness packaging method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2976769B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3358268B2 (en) * | 1994-02-07 | 2002-12-16 | 凸版印刷株式会社 | Freshness preserving packaging material for mushrooms and method of preserving freshness |
| JP2009120229A (en) * | 2007-11-14 | 2009-06-04 | Seiji Kagawa | Freshness preserving container lid material and freshness preserving container |
| SG11201502356YA (en) * | 2012-09-26 | 2015-05-28 | Teijin Pharma Ltd | Compressor |
| CN108216900B (en) * | 2018-02-06 | 2024-05-07 | 江南大学 | Air-conditioned preservation box with variable air permeability and preservation method thereof |
-
1993
- 1993-09-24 JP JP23802693A patent/JP2976769B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0787884A (en) | 1995-04-04 |
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