JPH10117677A - Packaging bag for fruit and flower - Google Patents
Packaging bag for fruit and flowerInfo
- Publication number
- JPH10117677A JPH10117677A JP27357896A JP27357896A JPH10117677A JP H10117677 A JPH10117677 A JP H10117677A JP 27357896 A JP27357896 A JP 27357896A JP 27357896 A JP27357896 A JP 27357896A JP H10117677 A JPH10117677 A JP H10117677A
- Authority
- JP
- Japan
- Prior art keywords
- bag
- film
- vinyl acetate
- eva
- ethylene
- 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.)
- Withdrawn
Links
Landscapes
- Storage Of Fruits Or Vegetables (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Packages (AREA)
- Wrappers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、青果物や切花の鮮
度を保持するための袋体に関する。The present invention relates to a bag for maintaining the freshness of fruits and vegetables and cut flowers.
【０００２】[0002]
【従来の技術】野菜・果物などの青果物、或いは切花類
は収穫後も生物体として生活作用を営んでいるが、収穫
後は栄養補給路が断たれるため、自ら体成分を消耗しな
がら呼吸、蒸散等を続けている。そのため、これら青果
物や切花の鮮度を維持しつつ貯蔵若しくは輸送すること
は極めて困難であり、従来から種々の工夫がなされてい
る。2. Description of the Related Art Vegetables and fruits such as vegetables and fruits, or cut flowers are still living as living organisms even after harvesting. , Transpiration, etc. For this reason, it is extremely difficult to store or transport these fruits and vegetables or cut flowers while maintaining their freshness, and various devices have conventionally been devised.
【０００３】例えば、青果物・切花を、ポリエチレンフ
ィルムやポリプロピレンフィルム、ポリスチレンフィル
ムなどの合成樹脂フィルム製の袋体で包装するのもその
一例である。上記したポリエチレンフィルムやポリプロ
ピレンフィルムは、包装することにより中の青果物・切
花類の呼吸、蒸散等の生活作用を抑制して保存性を向上
させることをねらいとしているが、これらのフィルムは
水蒸気透過率が低いため、フィルム内面へ水滴が付着し
たり曇りが発生し、外観品位が低下する。即ち青果物を
透視できなくなり、鮮度確認ができなくなると共に、む
れを生じて鮮度が低下する。フィルムの水滴、曇りを防
ぐために防曇剤を塗布することも有効ではあるが、その
効果は一時的なものであり青果物のむれによる鮮度低下
を防止することは不可能である。[0003] For example, one example is to package fruits and vegetables and cut flowers in a bag made of a synthetic resin film such as a polyethylene film, a polypropylene film, or a polystyrene film. The above-mentioned polyethylene film and polypropylene film are intended to suppress the daily activities such as respiration and transpiration of the fruits and vegetables and cut flowers in the package to improve the preservability, but these films have a water vapor transmission rate. Is low, water droplets adhere to the inner surface of the film or fogging occurs, and the appearance quality deteriorates. That is, the fruits and vegetables cannot be seen through, the freshness cannot be confirmed, and the freshness is reduced due to unevenness. It is effective to apply an antifogging agent in order to prevent water droplets and fogging of the film, but the effect is temporary and it is impossible to prevent a decrease in freshness due to unevenness of fruits and vegetables.
【０００４】かかる問題を解決するために、特開平８−
２３０９３３号公報では、延伸ポリスチレン系フィルム
にエチレンー酢酸ビニル共重合体を押出コーティングし
てなる青果物・切花包装用フィルムを開示している。し
かしながら、このフィルムは常温（２０℃程度）におけ
る鮮度保持には優れるものの、２５℃以上の高温におけ
る鮮度保持には不十分であった。In order to solve such a problem, Japanese Patent Laid-Open No.
No. 230933 discloses a film for packaging fruits and vegetables, which is obtained by extrusion-coating an oriented polystyrene film with an ethylene-vinyl acetate copolymer. However, although this film was excellent in maintaining freshness at room temperature (about 20 ° C.), it was insufficient to maintain freshness at a high temperature of 25 ° C. or higher.
【０００５】また、水蒸気透過率を向上させるため、大
きい孔をあけた有孔ポリオレフィン系フィルムよりなる
袋体で青果物・切花を包装した場合は、穴周辺の内容物
にしおれを生じ、また、袋体内のガス濃度が大気中と変
わらないため、ＣＡ（Ｃｏｎｔｒｏｌ ｏｆ Ａｔｏｍ
ｏｓｐｈｅｒｅ）効果に乏しく鮮度保持が困難である。
また、ポリスチレンフィルムは通気性が大きいので青果
物・切花などの鮮度保持には優れるが、ヒートシール性
に劣るため袋体の形成が困難であり、たとえ袋体に形成
したとしても、フィルム強度が弱いために流通段階でフ
ィルムにクラックが生じるなどして、実用に供せないの
が現実である。[0005] Further, when fruits and vegetables and cut flowers are wrapped in bags made of perforated polyolefin films with large holes in order to improve the water vapor transmission rate, the contents around the holes may be wilted, and Since the gas concentration in the body is not different from that in the atmosphere, CA (Control of Atom)
osphere) effect is poor and it is difficult to maintain freshness.
In addition, polystyrene film is excellent in keeping freshness of fruits and vegetables, cut flowers, etc. because of high air permeability, but it is difficult to form a bag due to poor heat sealing properties, and even if it is formed in a bag, the film strength is weak For this reason, it is a reality that the film cannot be put to practical use due to cracks in the film at the distribution stage.
【０００６】[0006]
【発明が解決しようとする課題】本発明の目的は、上記
問題点を解決し、２５℃以上の高温であっても内容物の
鮮度を保持し且つ外観品位にも優れた、青果物・切花用
包装袋体を提供することにある。具体的には、適度な通
気性、水蒸気透過性、及び強度を有し、内容物の視認性
を妨げない透明性を有した包装袋体を提供することにあ
る。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to maintain the freshness of the contents even at a high temperature of 25 ° C. or more and to have excellent appearance quality for fruits and vegetables. An object of the present invention is to provide a packaging bag. Specifically, it is an object of the present invention to provide a packaging bag having appropriate air permeability, water vapor permeability, and strength, and having transparency that does not hinder the visibility of contents.
【０００７】[0007]
【課題を解決するための手段】本発明者らは、上記課題
を達成するために鋭意検討した結果、本発明に到達し
た。すなわち、本発明は延伸ポリスチレン系フィルムに
エチレン−酢酸ビニル共重合体を押出しコーティングし
てなるフィルム製袋体であって、平均直径１００〜８０
０μｍの微孔を３ヶ以下の有することを特徴とする青果
物・切花包装用袋体である。Means for Solving the Problems The present inventors have made intensive studies to achieve the above object, and as a result, have reached the present invention. That is, the present invention is a film-made bag formed by extrusion-coating an ethylene-vinyl acetate copolymer on a stretched polystyrene film, and has an average diameter of 100 to 80.
A bag for packing fruits and vegetables or cut flowers, wherein the bag has three or less micropores of 0 μm.
【０００８】本発明の包装用袋体は、通気性に富み且つ
腰のある延伸ポリスチレン系フィルムにＥＶＡを直接コ
ーティングし更に該フィルム製袋に平均直径１００〜８
００μｍの微孔をあけることにより透明性、通気性、水
蒸気透過性を損なうこと無く袋体に必要な強度を付与し
て成るものである。以下本発明について詳細に説明す
る。[0008] The packaging bag of the present invention is obtained by directly coating EVA on a stretched polystyrene-based film having high air permeability and stiffness, and further forming an average diameter of 100 to 8 on the film-made bag.
By forming micropores of 00 μm, the bag has the necessary strength without impairing transparency, air permeability, and water vapor permeability. Hereinafter, the present invention will be described in detail.
【０００９】本発明で使用する延伸ポリスチレン系フィ
ルムとしては、ポリスチレンフィルム以外に、スチレン
を主成分とするポリスチレン共重合体フィルム、或い
は、ポリスチレンとポリスチレン共重合体との混合物か
らなるフィルムなどが挙げられる。具体的には、旭化成
工業（株）製のＯＰＳ（商品名）等が好ましく用いられ
る。Examples of the stretched polystyrene film used in the present invention include, in addition to the polystyrene film, a polystyrene copolymer film containing styrene as a main component, or a film made of a mixture of polystyrene and a polystyrene copolymer. . Specifically, OPS (trade name) manufactured by Asahi Kasei Corporation is preferably used.
【００１０】本発明で使用する延伸ポリスチレン系フィ
ルムの厚みは特に限定されないが、好ましくは１５〜５
０μｍである。フィルムの厚みが１５μｍ未満になると
腰がなくなり、内容物の保護性に欠け、袋詰めの作業性
が悪く好ましくない。また、５０μｍを超えると通気性
が低下し、内容物の鮮度保持効果に劣る。更にまた、本
発明で使用する延伸ポリスチレンは、二軸延伸したもの
が好ましく、熱収縮応力（ＯＲＳ）がいずれの方向共、
好ましくは３〜２０、望ましくは７〜１５のものを用い
る。上記ＯＲＳが小さい場合にはフィルムの腰がなくな
り、ＯＲＳが大き過ぎる場合には引裂強度が低下するた
め、好ましくない。尚、上記ＯＲＳはＡＳＴＭ Ｄ１５
０４−７０に準じて、長さ１７０ｍ／ｍ、幅４０ｍ／
ｍ、１６０℃での収縮応力の最大値を用いて計算する。The thickness of the stretched polystyrene film used in the present invention is not particularly limited, but is preferably from 15 to 5
0 μm. If the thickness of the film is less than 15 μm, the film becomes stiff, lacks protection of the contents, and the workability of bagging is unfavorable. On the other hand, if it exceeds 50 μm, the air permeability is reduced and the effect of maintaining the freshness of the contents is inferior. Furthermore, the stretched polystyrene used in the present invention is preferably biaxially stretched, and has a heat shrinkage stress (ORS) in any direction,
Preferably 3-20, desirably 7-15 are used. If the above-mentioned ORS is small, the stiffness of the film is lost, and if the ORS is too large, the tear strength decreases, which is not preferable. The ORS is ASTM D15
According to 04-70, length 170m / m, width 40m /
m, calculated using the maximum value of shrinkage stress at 160 ° C.
【００１１】本発明で使用する、エチレン−酢酸ビニル
共重合体（以下「ＥＶＡ」と記す）は、好ましくは、Ｍ
ＦＲが５〜２０ｇ／１０ｍｉｎ（ＪＩＳ Ｋ ６７３０
による）で、酢酸ビニル含有量が１５〜３０重量％（Ｊ
ＩＳ Ｋ ６７３０）である。ＭＦＲが５ｇ／１０ｍｉ
ｎ未満では、フィルムの膜切れを防ぐための押出温度を
２５０℃以上にする必要があるが、２５０℃以上の高温
ではＥＶＡ自体が分解してしまい、コーティングするこ
とができない。またＭＦＲが２０ｇ／１０分を超える
と、ＥＶＡの押出量の温度依存性が強くなるため、該押
出量の制御が難しくなり、フィルム厚が不均一になり易
い。[0011] The ethylene-vinyl acetate copolymer (hereinafter referred to as "EVA") used in the present invention is preferably an ethylene-vinyl acetate copolymer.
FR is 5 to 20 g / 10 min (JIS K 6730)
), The vinyl acetate content is 15 to 30% by weight (J
IS K 6730). MFR is 5g / 10mi
If it is less than n, it is necessary to set the extrusion temperature to 250 ° C. or higher to prevent the film from being cut. However, at a high temperature of 250 ° C. or higher, EVA itself decomposes and coating cannot be performed. If the MFR exceeds 20 g / 10 min, the temperature dependence of the extrusion amount of EVA becomes strong, so that it becomes difficult to control the extrusion amount, and the film thickness tends to be uneven.
【００１２】また、酢酸ビニル含有量が１５重量％未満
では、低温ヒートシール強度に劣り袋体を形成して用い
る場合に、ヒートシール部が剥がれてしまうという問題
を生ずる。更に、水蒸気透過率が低くなり、内容物がむ
れて腐敗し易くなる。一方、酢酸ビニル含有量が３０重
量％を超えると、熱安定性が低下すると同時に、冷却ロ
ールからのフィルムの剥がれも悪くなるなど、ラミネー
ト加工性に劣り、好ましくない。On the other hand, if the vinyl acetate content is less than 15% by weight, there is a problem that the heat-sealed portion is peeled off when the bag is formed and used at a low heat-sealing strength. Further, the water vapor transmission rate is reduced, and the contents are easily peeled off. On the other hand, when the vinyl acetate content exceeds 30% by weight, the thermal stability is lowered, and at the same time, the peeling of the film from the cooling roll is deteriorated.
【００１３】ＥＶＡをラミネート加工する際には、Ｔダ
イより押し出されたＥＶＡコートにオゾンを直接吹きつ
けて強制酸化を行ない、その後延伸ポリスチレン系フィ
ルムにラミネートする操作が必要で、この手順でラミネ
ートすることによりＥＶＡと延伸ポリスチレンフィルム
の接着強度が著しく向上する。この工程に用いるオゾン
発生装置としては、例えば、ソフタル日本（株）製のソ
ルベックスシステムなどが有る。When laminating EVA, it is necessary to directly blow ozone on the EVA coat extruded from the T-die to perform forced oxidation, and then to laminate the stretched polystyrene film. This significantly improves the adhesive strength between EVA and the stretched polystyrene film. As an ozone generator used in this step, for example, there is a Solbex system manufactured by Softal Japan KK.
【００１４】本発明で使用するフィルムにおいて、ＥＶ
Ａコートには防曇処理を施しておくことが好ましく、ラ
ミネート加工時に防曇剤をＥＶＡに混練するか、或いは
ラミネート加工後にＥＶＡコートに防曇剤を塗布するこ
とが好ましい。防曇剤としては、多価アルコールの脂肪
酸エステルなどがある。また、本発明で使用するフィル
ムには、ブロッキングを防止するため、でんぷん粉末や
酸化ケイ素、金属石けん等をごく少量用いてダスティン
グしておくか、或いは、ラミネート加工時にＥＶＡに離
型剤を混入しておくのが好ましい。In the film used in the present invention, EV
The A coat is preferably subjected to an anti-fogging treatment, and it is preferable to knead the anti-fogging agent with the EVA at the time of laminating or to apply the anti-fogging agent to the EVA coat after the laminating. Examples of the antifogging agent include fatty acid esters of polyhydric alcohol. In addition, in order to prevent blocking, the film used in the present invention is dusted using a very small amount of starch powder, silicon oxide, metal soap, or the like, or a release agent is mixed into EVA during lamination processing. It is preferable to keep it.
【００１５】更に、本発明で使用するフィルムにおい
て、ＥＶＡコートには抗菌処理を施しておくことが望ま
しい。抗菌処理の方法としては、ラミネート加工時に抗
菌剤を混練する方法やラミネート加工後にＥＶＡコート
面に抗菌剤を塗布する方法等が好ましい。抗菌剤として
はヒノキチオール、イソチオシアン酸エステル、銀ゼオ
ライト等がある。Further, in the film used in the present invention, it is desirable that the EVA coat is subjected to an antibacterial treatment. As a method of the antibacterial treatment, a method of kneading an antibacterial agent during lamination, a method of applying the antibacterial agent to the EVA coated surface after the lamination, and the like are preferable. Antibacterial agents include hinokitiol, isothiocyanate, silver zeolite and the like.
【００１６】本発明で使用する、延伸ポリスチレン系フ
ィルムにコートするＥＶＡの厚みは５〜４０μｍが好ま
しく、更に望ましくは１０〜２５μｍてある。ＥＶＡコ
ートの厚みが５μｍ未満では、ヒートシール強度が低下
し、延伸ポリスチレン系フィルムの補強効果も小さくな
り、好ましくない。また、４０μｍを超えてもＥＶＡコ
ーティングの効果が変わらず、経済的に望ましくない
上、通気性が悪くなる。The thickness of the EVA used to coat the stretched polystyrene film used in the present invention is preferably 5 to 40 μm, more preferably 10 to 25 μm. If the thickness of the EVA coat is less than 5 μm, the heat sealing strength is reduced and the reinforcing effect of the stretched polystyrene film is reduced, which is not preferable. Further, even if the thickness exceeds 40 μm, the effect of the EVA coating does not change, which is economically undesirable and deteriorates air permeability.
【００１７】本発明の袋体の水蒸気透過率は、６０ｇ／
ｍ2 ・２４Ｈｒ・ａｔ３８℃・９０％ＲＨ以上、更には
７０ｇ／ｍ2 ・２４Ｈｒ・ａｔ３８℃・９０％ＲＨ以上
であることが望ましい。本発明の袋体は、１００〜８０
０μｍの微孔を３ヶ以下有することが肝要である。孔の
大きさは望ましくは３１０〜６００μｍである。本発明
においてフィルムの孔が平均直径８００μ以上または３
ヶ以上になると該袋体で青果物・切花を包装した場合青
果物・切花の呼吸、蒸散作用等の生活作用のコントロー
ルが不十分となるため鮮度保持効果が不十分となる。ま
た微孔の平均直径が１００μｍ未満の場合には青果物、
切花を高温で保存したとき呼吸障害を起こし異臭を発生
し好ましくない。The bag of the present invention has a water vapor transmission rate of 60 g /
m 2 · 24Hr · at38 ℃ · 90% RH or more, more desirably at 70g / m 2 · 24Hr · at38 ℃ · 90% RH or more. The bag of the present invention is 100 to 80.
It is important to have three or less micropores of 0 μm. The size of the holes is desirably 310-600 μm. In the present invention, the film has an average diameter of 800 μm or more or 3 or more.
If the number of the fruits and vegetables is more than one, when the fruits and cut flowers are wrapped in the bag, the control of the daily activities such as the respiration and the transpiration of the fruits and fruits becomes insufficient, so that the effect of maintaining freshness becomes insufficient. When the average diameter of the pores is less than 100 μm,
When cut flowers are stored at high temperatures, they cause respiratory disorders and produce unpleasant odors, which is not preferable.
【００１８】本発明の袋体に孔を開ける方法としてはエ
チレン−酢酸ビニル共重合体をコーティングした延伸ポ
リエチレン系フィルムをスリットする時にスリッターで
あけたり、製袋する時製袋機であけるなど任意の方法で
あければ良い。本発明の袋体の大きさは特に限定されな
いが、一般にはタテ５０〜１０００ｍｍ、ヨコ５０〜１
０００ｍｍ、好ましくは１００〜２００ｍｍ、ヨコ１０
０〜２００ｍｍである。The method of perforating the bag of the present invention may be any method such as slitting a stretched polyethylene film coated with an ethylene-vinyl acetate copolymer with a slitter or making a bag with a bag making machine. Any way is fine. The size of the bag of the present invention is not particularly limited, but is generally 50 to 1000 mm in length and 50 to 1 in width.
000 mm, preferably 100 to 200 mm, horizontal 10
0 to 200 mm.
【００１９】本発明の包装用フィルムの製造装置の一例
を図１に示す。図１において、１は延伸ポリスチレン系
フィルムの原反、２は延伸ポリスチレン系フィルム、３
は張力検出調整ロール、４はニップロール、５は冷却ロ
ール、６は押出機、７はＥＶＡ、８はＴダイ、９はスロ
ット、１０はスリッター、１１は捲取機、１２はゴムラ
イニング、１３はオゾンノズルである。FIG. 1 shows an example of an apparatus for producing a packaging film of the present invention. In FIG. 1, 1 is a raw material of a stretched polystyrene film, 2 is a stretched polystyrene film, 3
Is a tension detection adjusting roll, 4 is a nip roll, 5 is a cooling roll, 6 is an extruder, 7 is an EVA, 8 is a T die, 9 is a slot, 10 is a slitter, 11 is a winding machine, 12 is a rubber lining, and 13 is It is an ozone nozzle.
【００２０】図１において、延伸ポリスチレン系フィル
ムの原反１より繰り出されたフィルム２は、張力検出調
整ロール３を経てニップロール４と冷却ロール５に供給
される。一方ＥＶＡ７は、押出機６で溶融・混練・加圧
されてＴダイ８のスロット９を経て薄い溶融フィルム状
で流下し、オゾンオズル１３よりオゾン処理された後、
ニップロール４と冷却ロール５の接触線近傍で、延伸ポ
リスチレン系フィルム２上に供給され、直ちにニップロ
ール４と冷却ロール５で圧着される。溶融ＥＶＡ層は１
５〜２５℃に冷却された冷却ロール５で冷却され、スリ
ッター１０で両耳部をスリットし、捲取機１１で製品と
して巻取られる、尚、１２はニップロールの表面ゴムラ
イニングである。In FIG. 1, a film 2 fed from an original stretched polystyrene film 1 is supplied to a nip roll 4 and a cooling roll 5 via a tension detection adjusting roll 3. On the other hand, the EVA 7 is melted, kneaded, and pressurized by the extruder 6, flows down in a thin molten film shape through the slot 9 of the T-die 8, and is ozone-treated by the ozone nozzle 13.
It is supplied onto the stretched polystyrene film 2 near the contact line between the nip roll 4 and the cooling roll 5 and immediately pressed by the nip roll 4 and the cooling roll 5. 1 for molten EVA layer
Cooled by the cooling roll 5 cooled to 5 to 25 ° C., both ears are slit by a slitter 10 and wound up as a product by a winder 11. Reference numeral 12 denotes a nip roll surface rubber lining.
【００２１】[0021]
【発明の実施の形態】以下、実施例を用いて本発明を具
体的に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be specifically described with reference to examples.
【００２２】[0022]
【実施例１】図１の装置を用いて、厚みが２０μｍのＯ
ＰＳフィルム（商品名，旭化成工業（株）製）に酢酸ビ
ニル含有量２７％、ＭＦＲ１３ｇ／１０ｍｉｎのＥＶ
Ａ、ＥＶ１１０（日本ユニカー（株）製）を厚さ２０μ
ｍで押出ラミネート加工し、ヒートシールして、内寸１
５０ｍｍ×２５０ｍｍの袋体を製造した。その時袋体に
400 μの孔を１ヶあけた。該袋体に生椎茸を入れて密封
し、２５℃で３日間放置した後、外観観察（臭い、腐
り、ひだの変色）を行なった。結果を表１に示す。尚、
表１中、シール強度について実用上問題のないものを
○、強度が弱く実用に供しないものを×とした。また、
外観観察については、臭い、腐り、ひだの変色がほとん
どないものを○、臭い、腐り、ひだの変色が著しく市場
性のないものを×とした。水蒸気透過率はＡＳＴＭ−Ｅ
９６により測定した。[Embodiment 1] Using an apparatus shown in FIG.
EV of PS film (trade name, manufactured by Asahi Kasei Kogyo Co., Ltd.) having a vinyl acetate content of 27% and an MFR of 13 g / 10 min.
A, EV110 (manufactured by Nippon Unicar Co., Ltd.) with a thickness of 20 μm
Extrusion laminating at m, heat sealing, inner size 1
A bag of 50 mm × 250 mm was manufactured. At that time in the bag
One 400 μ hole was drilled. After the raw shiitake mushrooms were put in the bag and sealed, and allowed to stand at 25 ° C. for 3 days, the appearance was observed (odor, decay, discoloration of pleats). Table 1 shows the results. still,
In Table 1, those having no practical problem with respect to the seal strength were indicated by "O", and those having low strength and not practically used were indicated by "X". Also,
Regarding the appearance observation, those having little odor, decay, and discoloration of the fold were evaluated as ○, and those having odor, decay, and discoloration of the fold which were not significantly marketable were evaluated as X. Water vapor transmission rate is ASTM-E
96.
【００２３】[0023]
【比較例１、２】表１に示す素材を用いた以外は実施例
１と同様にして袋体を製造し、評価を行った。結果を表
１に示す。Comparative Examples 1 and 2 Bags were manufactured and evaluated in the same manner as in Example 1 except that the materials shown in Table 1 were used. Table 1 shows the results.
【００２４】[0024]
【比較例３】袋に孔があいていない以外は実施例１と同
様にして袋体を製造し、評価を行った。結果を表１に示
す。Comparative Example 3 A bag was manufactured and evaluated in the same manner as in Example 1 except that the bag had no holes. Table 1 shows the results.
【００２５】[0025]
【比較例４】孔の数を４ヶとした以外は実施例１と同様
にして袋体を製造し、評価を行った。結果を表１に示
す。Comparative Example 4 A bag was manufactured and evaluated in the same manner as in Example 1 except that the number of holes was changed to four. Table 1 shows the results.
【００２６】[0026]
【表１】 [Table 1]
【００２７】[0027]
【発明の効果】以上説明したように、本発明の包装用袋
体は、特定のフィルムを用い特定範囲の孔を有すること
によりシール強度も十分で、青果物・切花を包装しても
その呼吸、蒸散により包装体内に放出される炭酸ガスや
水蒸気等を外部に放出して、内容物の鮮度を高温におい
ても保持し、外観も美麗に保つことができる。また、本
発明の包装用袋体は適度に腰を有するため、青果物の袋
詰め等の作業性が非常に良い。As described above, the packaging bag of the present invention has a sufficient sealing strength by using a specific film and having a specific range of holes. By releasing carbon dioxide gas, water vapor and the like released into the package by evaporation, the freshness of the contents can be maintained even at high temperatures, and the appearance can be kept beautiful. Moreover, since the bag for packaging of the present invention has a moderate waist, the workability of bagging fruits and vegetables is very good.
【図１】本発明の包装フィルムの製造装置の一例を示す
図である。FIG. 1 is a diagram showing an example of a packaging film manufacturing apparatus of the present invention.
１ 延伸ポリスチレン系フィルムの原反 ２ 延伸ポリスチレン系フィルム ３ 張力検出調整ロール ４ ニツプロール ５ 冷却ロール ６ 押出機 ７ ＥＶＡ ８ Ｔダイ ９ スロット １０ スリッター １１ 捲取機 １２ ゴムライニング １３ オゾンノズル DESCRIPTION OF SYMBOLS 1 Original raw material of stretched polystyrene film 2 Stretched polystyrene film 3 Tension detection adjusting roll 4 Nip roll 5 Cooling roll 6 Extruder 7 EVA 8 T die 9 Slot 10 Slitter 11 Winder 12 Rubber lining 13 Ozone nozzle
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｂ６５Ｄ 81/26 Ｂ６５Ｄ 81/26 Ｅ 85/50 85/50 Ｃ Ｇ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI B65D 81/26 B65D 81/26 E 85/50 85/50 CG
Claims (4)
−酢酸ビニル重合体を押出しコーティングしてなるフィ
ルム製袋体であって、平均直径１００〜８００μｍの微
孔を３ヶ以下有することを特徴とする青果物・切花包装
用袋体。1. A film bag formed by extrusion coating an oriented polystyrene film with an ethylene-vinyl acetate polymer, wherein the bag has three or less micropores having an average diameter of 100 to 800 μm. Bag for packaging cut flowers.
が５〜２０ｇ／１０ｍｉｎで且つ酢酸ビニルを１５〜３
０重量％含有している請求項１記載の青果物・切花包装
用袋体。2. An ethylene-vinyl acetate copolymer comprising MFR
Is 5 to 20 g / 10 min and vinyl acetate is 15 to 3 g
The bag for packaging fruits and vegetables according to claim 1, which contains 0% by weight.
５〜５０μｍ、エチレン−酢酸ビニル共重合体コートの
厚みが５〜４０μｍである請求項１又は２記載の青果物
・切花包装用袋体。3. The stretched polystyrene film has a thickness of 1
The bag for packaging fruits and vegetables or cut flowers according to claim 1 or 2, wherein the thickness of the ethylene-vinyl acetate copolymer coat is 5 to 50 µm.
・ａｔ３８℃・９０％ＲＨ以上である請求項１〜３いず
れかに記載の青果物・切花包装用袋体。4. A water vapor transmission rate of 65 g / m 2 · 24 Hr
The bag for packaging fruits and vegetables or cut flowers according to any one of claims 1 to 3, which has at least 38 ° C and 90% RH or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27357896A JPH10117677A (en) | 1996-10-16 | 1996-10-16 | Packaging bag for fruit and flower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27357896A JPH10117677A (en) | 1996-10-16 | 1996-10-16 | Packaging bag for fruit and flower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10117677A true JPH10117677A (en) | 1998-05-12 |
Family
ID=17529760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27357896A Withdrawn JPH10117677A (en) | 1996-10-16 | 1996-10-16 | Packaging bag for fruit and flower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10117677A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002027908A (en) * | 2000-05-08 | 2002-01-29 | Sumitomo Bakelite Co Ltd | Package with high banana freshness retention |
| JP2002112700A (en) * | 2000-10-06 | 2002-04-16 | Sumitomo Bakelite Co Ltd | Packaging material for keeping freshness of cherry tomato |
-
1996
- 1996-10-16 JP JP27357896A patent/JPH10117677A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002027908A (en) * | 2000-05-08 | 2002-01-29 | Sumitomo Bakelite Co Ltd | Package with high banana freshness retention |
| JP2002112700A (en) * | 2000-10-06 | 2002-04-16 | Sumitomo Bakelite Co Ltd | Packaging material for keeping freshness of cherry tomato |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20040106 |