JPH08175571A - Packaging material for fermented soybeans - Google Patents
Packaging material for fermented soybeansInfo
- Publication number
- JPH08175571A JPH08175571A JP6320766A JP32076694A JPH08175571A JP H08175571 A JPH08175571 A JP H08175571A JP 6320766 A JP6320766 A JP 6320766A JP 32076694 A JP32076694 A JP 32076694A JP H08175571 A JPH08175571 A JP H08175571A
- Authority
- JP
- Japan
- Prior art keywords
- permeability
- natto
- packaging material
- air
- jis
- 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.)
- Pending
Links
Landscapes
- Packages (AREA)
- Beans For Foods Or Fodder (AREA)
- Laminated Bodies (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は透気度、透湿度、耐水性
等の性能に優れ、納豆の包装に適した納豆包装材料に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a natto packaging material excellent in air permeability, moisture permeability, water resistance and the like and suitable for natto packaging.
【0002】[0002]
【従来の技術】従来、納豆包装材料としては発泡ポリス
チレンシート等のプラスチツクを主体とするものが用い
られている。そして図3に断面正面図で示すように発泡
ポリスチレンシートの熱成形容器11と、薄いプラスチ
ツクフイルムからなる内蓋13および外蓋体13などか
らなる容器が、納豆の発酵や保存、流通に適した包装容
器形態として広く採用されている。2. Description of the Related Art Conventionally, as a natto packaging material, a material mainly made of plastic such as expanded polystyrene sheet has been used. As shown in the sectional front view of FIG. 3, a thermoformed container 11 made of expanded polystyrene sheet, and a container made of a thin plastic film such as an inner lid 13 and an outer lid 13 are suitable for fermenting, storing, and distributing natto. Widely used as a packaging container form.
【0003】[0003]
【発明が解決しようとする課題】上記従来の納豆包装材
料は、プラスチツクを主体とする材料であるため、使用
後の廃棄物の処理にコストがかかったり、発泡シートの
ためかさばって保管効率や輸送効率が悪いという問題が
ある。Since the conventional natto packaging materials described above are mainly composed of plastics, it is costly to dispose of wastes after use, and the foamed sheets are bulky, resulting in storage efficiency and transportation. There is a problem of inefficiency.
【0004】また、発酵に必要な酸素の供給及び水分の
蒸散が容器の上面からが主となるため容器底部の発酵不
良が生じ易く、また、容器底部の納豆が柔らかくなると
いう問題がある。Further, since the supply of oxygen and evaporation of water necessary for fermentation are mainly performed from the upper surface of the container, there is a problem that fermentation failure easily occurs at the bottom of the container and that natto becomes soft at the bottom of the container.
【0005】[0005]
【課題を解決するための手段】本発明は材料自体が透気
度や透湿度の双方を調整でき、そのまま製袋して袋体と
して使用することができる納豆包装材料を提供せんとす
るものであり、紙厚が30g/m2 〜200g/m2 の
紙層の少なくとも片面に、合成樹脂エマルジヨン塗工層
を介して、有孔プラスチツクフイルムを接着してなる納
豆包装材料であって、JIS−P8117の透気度が5
0秒/100cc〜1000秒/100cc、JIS−
Z0208の透湿度が500g/m2 ・24hr〜30
00g/m2 ・24hrの特性を有する納豆包装材料に
関するものであり、以下添付図面に基づいて説明する。DISCLOSURE OF THE INVENTION The present invention provides a natto packaging material in which the material itself can be adjusted in both air permeability and moisture permeability and can be used as a bag body as it is. A natto packaging material obtained by adhering a perforated plastic film to at least one surface of a paper layer having a paper thickness of 30 g / m2 to 200 g / m2 through a synthetic resin emulsion coating layer, according to JIS-P8117. Air permeability is 5
0 sec / 100 cc to 1000 sec / 100 cc, JIS-
Water vapor permeability of Z0208 is 500g / m2 ・ 24hr ~ 30
The present invention relates to a natto packaging material having a characteristic of 00 g / m 2 · 24 hr, which will be described below with reference to the accompanying drawings.
【0006】図1は本発明の納豆包装材料の一例を示す
拡大した部分断面図、図2は本発明の納豆包装材料を用
いた袋体による納豆包装体の例を示す断面正面図であ
り、図3は従来の納豆包装体の一例を示す断面正面図で
ある。FIG. 1 is an enlarged partial sectional view showing an example of the natto packaging material of the present invention, and FIG. 2 is a sectional front view showing an example of a natto packaging body with a bag using the natto packaging material of the present invention. FIG. 3 is a sectional front view showing an example of a conventional natto package.
【0007】本発明は図1、図2に示すように紙厚が3
0g/m2 〜200g/m2 の紙層1の少なくとも片面
に、合成樹脂エマルジヨン塗工層2を介して、有孔プラ
スチツクフイルム3を接着してなる納豆包装材料であっ
て、JIS−P8117の透気度が50秒/100cc
〜1000秒/100cc、JIS−Z0208の透湿
度が500g/m2 ・24hr〜3000g/m2 ・2
4hrの特性を有する納豆包装材料である。In the present invention, as shown in FIGS. 1 and 2, the paper thickness is 3
A natto packaging material obtained by adhering a perforated plastic film 3 to at least one surface of a paper layer 1 of 0 g / m2 to 200 g / m2 via a synthetic resin emulsion coating layer 2, and having a gas permeability of JIS-P8117. 50 seconds / 100 cc
~ 1000 seconds / 100cc, JIS-Z0208 moisture permeability is 500g / m2-24hr-3000g / m2-2
It is a natto packaging material having a characteristic of 4 hours.
【0008】本発明の作用は、紙厚が30g/m2 〜2
00g/m2 の紙層1に合成樹脂エマルジヨン塗工層2
によって透気度を確保しながら透湿度を調整したもので
あり、この納豆包装材料自体の特性をJIS−P811
7の透気度が50秒/100cc〜1000秒/100
cc、JIS−Z0208の透湿度が500g/m2・
24hr〜3000g/m2 ・24hrとしたことによ
り、包装される納豆の発酵作用に適し、水分の蒸散によ
る納豆の乾燥をふせいで保存性を高めるという作用を示
す。The function of the present invention is that the paper thickness is 30 g / m 2 -2.
Synthetic resin emulsion layer 2 on 00g / m2 paper layer 1
By adjusting the moisture permeability while ensuring the air permeability, the characteristics of this natto packaging material itself are specified in JIS-P811.
Air permeability of 7 is 50 seconds / 100 cc to 1000 seconds / 100
cc, JIS-Z0208 moisture permeability is 500g / m2 ・
24 hours to 3000 g / m 2 · 24 hours is suitable for the fermenting action of natto to be packaged, and exhibits the action of improving the shelf life by preventing the drying of natto by evaporation of water.
【0009】そして合成樹脂エマルジヨン塗工層2を介
して、有孔プラスチツクフイルム3を接着させたことに
より、透気度、透湿度を維持したまま耐水性を向上し、
また有孔プラスチツクフイルム3をヒートシール層とし
て袋体を製造しやすくしたものである。By adhering the perforated plastic film 3 through the synthetic resin emulsion coating layer 2, water resistance is improved while maintaining air permeability and moisture permeability,
Further, the perforated plastic film 3 is used as a heat seal layer to facilitate the production of the bag.
【0010】本発明における紙としては、強度、剛性、
透気度、透湿度、保温性あるいはかさ張らない等の面か
ら、JIS規格で示されるような通常のクラフト紙で、
その厚みが30g/m2 〜200g/m2 程度のものが
使用できる。また、防水紙、和紙、合紙なども用いるこ
とができる。The paper in the present invention includes strength, rigidity,
From the perspective of air permeability, moisture permeability, heat retention, or not bulky, ordinary kraft paper as specified by JIS standard,
Those having a thickness of about 30 g / m @ 2 to 200 g / m @ 2 can be used. Further, waterproof paper, Japanese paper, interleaving paper, etc. can also be used.
【0011】この紙の作用としては適度な透気度を確保
するとともに、余分な水分を吸収して内容物の変質を防
いだり、その繊維の間の空隙によりある程度の保温性を
有するので外部の温度変化で内面に結露が発生するのを
防ぐという役割を果たす。The function of this paper is to secure an appropriate air permeability, absorb excess water to prevent alteration of the contents, and to maintain a certain degree of heat retention due to the voids between the fibers. It plays the role of preventing condensation on the inner surface due to temperature changes.
【0012】厚みが30g/m2 以下では保温性が十分
でなく、また合成樹脂エマルジヨン塗工層2を形成する
際に紙層を染み通して裏面にまわりこむため合成樹脂エ
マルジヨン塗工層2による透気度、透湿度の調整が難し
いという問題が有る。When the thickness is 30 g / m 2 or less, the heat retaining property is not sufficient, and when the synthetic resin emulsion coating layer 2 is formed, it penetrates the paper layer and wraps around to the back surface. There is a problem that it is difficult to adjust the temperament and moisture permeability.
【0013】一方、厚みが200g/m2 以上であると
断熱効果のため熱シールに時間がかかることや剛性が高
くなることなどにより、袋体の製造効率が低下するとい
う問題が有る。On the other hand, when the thickness is 200 g / m 2 or more, there is a problem that the heat-sealing takes time due to the heat insulating effect and the rigidity is increased, so that the bag manufacturing efficiency is lowered.
【0014】本発明において合成樹脂エマルジヨン塗工
層2は合成樹脂エマルジヨンを紙層1の表面に塗布し、
含浸させ、硬化させてなるもので、その作用は紙層1の
表面に、ある程度しみこんで完全に連続した被膜を作ら
ずに透気度を確保した状態で、紙層1の表面を強化する
ことができるほか、紙単体にくらべ耐水性が大幅に向上
する。In the present invention, the synthetic resin emulsion coating layer 2 is obtained by applying synthetic resin emulsion onto the surface of the paper layer 1.
It is impregnated and cured, and its function is to strengthen the surface of the paper layer 1 while ensuring the air permeability without forming a completely continuous film by soaking into the surface of the paper layer 1 to some extent. In addition, the water resistance is significantly improved compared to paper alone.
【0015】本発明に用いる合成樹脂エマルジヨンと
は、エチレン−酢酸ビニル共重合体樹脂、エチレンアク
リル酸共重合体樹脂、アクリル樹脂とスチレン樹脂の混
合物あるいはポリ塩化ビニリデン樹脂等を水中に懸濁さ
せてエマルジヨンとしたものが用いられる。The synthetic resin emulsion used in the present invention means an ethylene-vinyl acetate copolymer resin, an ethylene acrylic acid copolymer resin, a mixture of an acrylic resin and a styrene resin, or a polyvinylidene chloride resin suspended in water. Emulsion is used.
【0016】これら合成樹脂エマルジヨンにパラフイン
を添加して滑りを良くしたり、透湿度を下げるなどの特
性を改良したり、チタンを添加して透気度を高めるなど
の改良を加えることもできる。Paraffin may be added to these synthetic resin emulsions to improve the characteristics such as slipperiness and moisture permeability, or titanium may be added to improve the air permeability.
【0017】また合成樹脂エマルジヨンは紙層1内に含
浸、硬化しており加熱により状態変化が生じにくいた
め、有孔プラスチツク3を加熱圧着する際に透気度を損
なう恐れも無く、加熱圧着が可能なため接着剤も不要で
あるので残留溶媒による汚染もなく、しかも水の状態で
は透過しにくいという耐水性をも備えている。Further, since the synthetic resin emulsion is impregnated and hardened in the paper layer 1 and the state thereof is unlikely to change due to heating, there is no fear of impairing the air permeability when the perforated plastics 3 is thermocompression-bonded, and the thermocompression bonding is performed. Since it does not require an adhesive because it is possible, it is not contaminated by residual solvent, and it has water resistance that it is difficult for water to permeate.
【0018】本発明に用いる有孔プラスチツクフイルム
3としては、ポリエチレン、ポリプロピレン、ポリ塩化
ビニル、ポリアミドなどのプラスチツクフイルム3に直
径が0.05mm〜1.0mmの小孔31を1cm2 あ
たり1個以上形成したものが好適に用いられる。小孔3
1の直径が0.05mm以上だと、貼あわせの際に小孔
31が閉塞しにくく、1.0mm以下だと納豆のネバネ
バが入り込んだり納豆が引っ掛かったりして取り出しに
くくなる恐れが少ない。As the perforated plastic film 3 used in the present invention, one or more small holes 31 having a diameter of 0.05 mm to 1.0 mm are formed per cm 2 in the plastic film 3 made of polyethylene, polypropylene, polyvinyl chloride, polyamide or the like. What was done is used suitably. Small hole 3
If the diameter of 1 is 0.05 mm or more, the small holes 31 are less likely to be blocked during bonding, and if it is 1.0 mm or less, the stickiness of natto may get in or the natto may be caught, making it difficult to remove.
【0019】なお、小孔31の総面積をプラスチツクフ
イルム3の小孔31も含む全面積で除して、100を乗
じた開口率(%)が0.01%以上とすると、納豆の発
酵に適した透気度が得られるとともに、10%以下とす
ると水に濡れた場合の強度保持効果が著しく優れ、水分
蒸発を抑制して納豆の乾燥を防ぐ作用に貢献するので好
ましい。If the total area of the small holes 31 is divided by the total area including the small holes 31 of the plastic film 3 and the opening ratio (%) multiplied by 100 is 0.01% or more, fermenting of natto is performed. A suitable air permeability is obtained, and when it is 10% or less, the strength retention effect when wet with water is remarkably excellent, and it contributes to the function of suppressing water evaporation and preventing the drying of natto.
【0020】このプラスチツクフイルム3の厚さはシー
ル性の面からは10μ以上、また小孔31の形成がやり
やすいことから100μ以下が好ましい。The thickness of the plastic film 3 is preferably 10 μm or more from the viewpoint of sealing property and 100 μm or less because the small holes 31 are easily formed.
【0021】本発明の納豆包装材料の特性についてはJ
IS−P8117の透気度が50秒/100cc〜10
00秒/100cc、JIS−Z0208の透湿度が5
00g/m2 ・24hr〜3000g/m2 ・24hr
としておくのが必要とされる。 透気度が1000秒/
100ccに満たないと、包装された納豆の発酵に適し
た空気が補充されないとともに、納豆の有するアンモニ
ア臭が十分排出されず、残留してしまうという欠点が有
る。The characteristics of the natto packaging material of the present invention are described in J
Air permeability of IS-P8117 is 50 seconds / 100cc-10
00 seconds / 100 cc, JIS-Z0208 moisture permeability is 5
00g / m2 ・ 24hr ~ 3000g / m2 ・ 24hr
Is required to be kept. Air permeability is 1000 seconds /
If it is less than 100 cc, there is a drawback that the air suitable for fermentation of the packed natto is not replenished and the ammonia odor of natto is not sufficiently discharged and remains.
【0022】透気度が50秒/100ccを越えると、
水分の蒸散が大きくなり過ぎて、納豆が過度に乾燥する
おそれがある。When the air permeability exceeds 50 seconds / 100 cc,
Water may be evaporated too much and natto may be excessively dried.
【0023】透湿度が500g/m2 ・24hrに満た
ないと、水蒸気が結露して納豆が水っぽくなる。If the water vapor permeability is less than 500 g / m 2 · 24 hr, water vapor will condense and the natto will become watery.
【0024】透湿度が3000g/m2 ・24hrを越
えると、納豆の水分が外部に蒸散して乾燥してしまった
り、納豆の水分が紙層1に移行して強度を弱めてしまう
おそれが有る。If the water vapor permeability exceeds 3000 g / m 2 · 24 hr, the water content of natto may evaporate to the outside and dry, or the water content of natto may migrate to the paper layer 1 and weaken the strength.
【0025】本発明の納豆包装材料を製造するために
は、紙層1の表面に紙の表面加工に用いられている一般
的な塗布装置によって合成樹脂エマルジヨンを塗布し、
含浸させ、熱風乾燥によって硬化させて層2を形成す
る。In order to produce the natto packaging material of the present invention, the surface of the paper layer 1 is coated with synthetic resin emulsion by a general coating device used for surface treatment of paper,
Impregnated and cured by hot air drying to form Layer 2.
【0026】そして、この層2に対して、有孔プラスチ
ツクフイルム3を重ね合わせて加熱圧着することにより
接着して本発明の納豆包装材料を得ることができる。Then, the perforated plastic film 3 is superposed on this layer 2 and bonded by heating and pressure bonding to obtain the natto packaging material of the present invention.
【0027】本発明の納豆包装材料を使用して、納豆包
装体を製造するためには例えば自動製袋充填装置を用い
てプラスチツクフイルム3同士を重ね合せて3方をヒー
トシールして袋体を製造し、納豆菌を接種した蒸煮大豆
を充填し、開口部をヒートシールして閉止し、必要に応
じて発酵に適した温度に加熱すればよい。もちろん納豆
として発酵済みのものを包装する材料としても好適であ
る。In order to produce a natto package using the natto packaging material of the present invention, for example, an automatic bag making and filling device is used to stack the plastic films 3 and heat seal the three sides to form a bag. Steamed soybeans produced and inoculated with Bacillus natto may be filled, and the opening may be heat-sealed to close it, and if necessary, heated to a temperature suitable for fermentation. Of course, it is also suitable as a material for packaging fermented natto.
【0028】袋体の片面に本発明の納豆包装材料を、反
対面に透明プラスチツクフイルムを使用して透視できる
ようにしてもよい。袋体とすると場所を取らないという
利点があるが、カップ状に成形した容器にもあるいは蓋
材としても使用することができる。The natto packaging material of the present invention may be used on one side of the bag body and the other side may be made transparent by using a transparent plastic film. A bag body has an advantage that it does not occupy a lot of space, but can be used as a cup-shaped container or as a lid material.
【0029】[0029]
【実施例】紙層1として100g/m2 の両更クラフト
紙を、合成樹脂エマルジヨンとして水分含量が25重量
%のエチレン−酢酸ビニル共重合体エマルジヨンを、有
孔プラスチツクフイルム3として厚さ30ミクロンのポ
リエチレンフイルムに、直径が0.2mm2 の小孔31
を1cm2 あたり25個、開口率1.57%となるよう
に設けたものを採用した。EXAMPLE 100 g / m @ 2 of double-coated kraft paper was used as the paper layer 1, ethylene-vinyl acetate copolymer emulsion having a water content of 25% by weight was used as the synthetic resin emulsion, and perforated plastic film 3 having a thickness of 30 .mu.m. Polyethylene film with small holes 31 with a diameter of 0.2 mm2
25 pieces per cm 2 and an aperture ratio of 1.57% were used.
【0030】前記紙層1に、エチレン−酢酸ビニル共重
合体エマルジヨンを乾燥後の重量で10g/m2 となる
ように塗布し、含浸させ、熱風乾燥によって硬化させて
合成樹脂エマルジヨン塗工層2を形成した後、有孔プラ
スチツクフイルム3を加熱圧着して納豆包装材料を得
た。The above-mentioned paper layer 1 was coated with ethylene-vinyl acetate copolymer emulsion so that the weight after drying was 10 g / m 2, impregnated, and cured by hot air drying to form a synthetic resin emulsion coating layer 2. After the formation, the perforated plastic film 3 was heated and pressed to obtain a natto packaging material.
【0031】合成樹脂エマルジヨン塗工層2を形成した
時点で、合成樹脂エマルジヨン塗工層2側から透気度と
透湿度を測定したところ、JIS−P8117に規定さ
れる透気度が38秒/100ccでJIS−K7129
−B法に規定される透湿度は大きすぎて測定不能であっ
た。When the synthetic resin emulsion coating layer 2 was formed and the air permeability and moisture permeability were measured from the synthetic resin emulsion coating layer 2 side, the air permeability specified in JIS-P8117 was 38 seconds / JIS-K7129 at 100 cc
The water vapor transmission rate specified by the -B method was too large to be measured.
【0032】次に、さらに有孔プラスチツクフイルム3
を加熱圧着して得られた納豆包装材料に関し、有孔プラ
スチツクフイルム3側からの透気度と透湿度を測定した
ところ、JIS−P8117に規定される透気度が38
2秒/100ccであり、JIS−K7129−B法に
規定される透湿度が1760g/m2 ・24hrであっ
た。Next, the perforated plastic film 3
Regarding the natto packaging material obtained by heat-pressing, the air permeability and moisture permeability from the perforated plastic film 3 side were measured, and the air permeability specified in JIS-P8117 was 38.
The water vapor transmission rate was 2 seconds / 100 cc, and the water vapor transmission rate defined by JIS-K7129-B method was 1760 g / m 2 · 24 hr.
【0033】この納豆包装材料を使用して、有孔プラス
チツクフイルム3同士を内面として突き合わせ、シール
幅7mmで内側サイズが100mm×100mmの3方
シール袋を作成し、図2に示すような通気性容器(A)
とした。Using this natto packaging material, the perforated plastic films 3 are butted against each other as an inner surface to form a three-sided seal bag having a seal width of 7 mm and an inner size of 100 mm × 100 mm, and having air permeability as shown in FIG. Container (A)
And
【0034】一方、従来のポリスチレンペーパーの成形
トレーで内側サイズが縦95mm、横95mm、高さ3
0mmのものに、ポリエチレンフイルムの内蓋13、紙
の外蓋体12を組み合わせた図3に示すようなトレー容
器(B)を準備した。On the other hand, in a conventional polystyrene paper molding tray, the inner size is 95 mm in length, 95 mm in width, and 3 in height.
A tray container (B) as shown in FIG. 3 in which an inner lid 13 made of polyethylene film and an outer lid 12 made of paper were combined with 0 mm was prepared.
【0035】納豆材料として、アメリカ産極小粒大豆3
Kgを洗浄し水温15℃の水に16時間浸漬した後、軽
く洗って1.5Kg/cm2 の圧力で45分間蒸煮し、
滅菌水で希釈した納豆菌を噴霧して接種した蒸煮大豆を
準備した。As a natto material, 3 very small soybeans from the United States
After washing Kg and immersing it in water with a water temperature of 15 ° C for 16 hours, wash it lightly and steam it for 45 minutes at a pressure of 1.5 Kg / cm2,
A steamed soybean inoculated by spraying natto bacteria diluted with sterile water was prepared.
【0036】この蒸煮大豆を、前記通気性容器(A)お
よびトレー容器(B)にそれぞれ50gずつ充填し、開
口部を閉止してから、加室恒温室内で温度37℃、湿度
90%RHの条件下で16時間保持したあと、温度5
℃、湿度60%RHの条件下で32時間保持した後に開
封して食味テストを実施した結果を表1に示す。The steamed soybeans were filled in the air-permeable container (A) and the tray container (B) in an amount of 50 g each, and the openings were closed, and then the temperature was 37 ° C. and the humidity was 90% RH in a constant temperature chamber. After keeping under conditions for 16 hours, temperature 5
Table 1 shows the results of the taste test conducted after holding for 32 hours under conditions of ° C and humidity of 60% RH.
【0037】なお、食味テストの方法は以下の通りであ
る。テストを行なうパネラーとして関東甲信越以北及び
熊本県出身者36名、その他の出身者3名、合計39名
で実施した。The taste test method is as follows. As a panelist to perform the test, 36 people from Kanto Koshinetsu and Kumamoto Prefecture, 3 people from other areas, and a total of 39 people.
【0038】食味テストは、ブラインドで前記通気性容
器(A)およびトレー容器(B)の納豆それぞれ50g
を醤油4cc、和からし0.5gをパネラーがかき混ぜ
て、御飯にかけ試食する形式とした。In the taste test, 50 g of natto in the air-permeable container (A) and the tray container (B) were blinded.
Was mixed with 4 cc of soy sauce and 0.5 g of Japanese mustard so that the panelists could stir it over rice.
【0039】評価方法としては、以下の4項目について
5点評価で、 「おいしさ」 5:おいしい,4:ややおいしい,3:
ふつう,2:ややおいしくない,1:おいしくない 「粘り」 5:つよい,4:ややつよい,3:ふつう,
2:ややよわい,1:よわい 「硬さ」 5:かたい,4:ややかたい,3:ふつう,
2:やややわらかい,1:やわらかい 「香り」 5:よい,4:ややよい,3:ふつう,2:
ややわるい,1:わるいと評価し、さらに、嗜好点とし
て各パネラーの好きな方に1点あたえて、その総和を評
価した。As an evaluation method, the following 4 items are evaluated by 5 points, and "deliciousness" 5: delicious, 4: somewhat delicious, 3:
Normal, 2: Not so good, 1: Not good "stickiness" 5: Good, 4: Good, 3: Normal,
2: Slightly good, 1: Good "hardness" 5: Hard, 4: Slightly hard, 3: Normal,
2: Soft, 1: Soft "fragrance" 5: Good, 4: Good, 3: Normal, 2:
Slightly bad, 1: We evaluated it as bad, and also gave one point to each panelist's favorite person as a liking point and evaluated the sum.
【0040】[0040]
【表1】 表1に示されるように、本発明の納豆包装材料からなる
通気性容器(A)により包装、発酵させた納豆は粘りが
3.18と強く、硬さが3.02と適度であるのに対
し、従来のトレー容器(B)の納豆は粘りが2.85と
比較的弱く、硬さも2.80と比較的柔らかめで、嗜好
としては通気性容器(A)によるものが21名で、従来
のトレー容器(B)の18名よりも多くの人に好まれる
という結果が得られた。[Table 1] As shown in Table 1, natto, which was packaged and fermented in the breathable container (A) made of the natto packaging material of the present invention, had a strong stickiness of 3.18 and a proper hardness of 3.02. On the other hand, the conventional natto in the tray container (B) has a relatively low stickiness of 2.85 and a relatively soft hardness of 2.80, and 21 tastes from the breathable container (A). The result was that it was preferred by more than 18 people in the tray container (B).
【0041】これは、通気性容器(A)は全体で空気を
透過するので納豆全体にまんべんなく発酵が進んで粘り
が全体にいきわたるとともに、全体で透湿するので納豆
全体でまんべんなくしかも適度に水分が発散するため適
度な硬さになるものと思われる。This is because the breathable container (A) allows air to pass through as a whole, so that the fermentation of the whole natto proceeds evenly and the stickiness spreads throughout. It seems to have an appropriate hardness due to divergence.
【0042】[0042]
【発明の効果】本発明は紙厚が30g/m2 〜200g
/m2 の紙層の少なくとも片面に、合成樹脂エマルジヨ
ン塗工層を介して、有孔プラスチツクフイルムを接着し
てなる納豆包装材料であって、JIS−P8117の透
気度が50秒/100cc〜1000秒/100cc、
JIS−Z0208の透湿度が500g/m2 ・24h
r〜3000g/m2 ・24hrの特性を有する納豆包
装材料であるので、紙層主体のために廃棄物処理が容易
となり、かさ張ることもなく、袋体を製造するための材
料としても適しており、納豆を包装するのに理想的な透
気度と透湿度の双方の特性を有するとともに、紙層、合
成樹脂エマルジヨンの材料、塗布回数あるいは有孔プラ
スチツクフイルムの開孔率などを調整することにより前
記透気度と透湿度の双方の特性を容易に実現でき、さら
に耐水性に優れる本包装材料からなる袋体は調味液の染
み出しがなく、袋体の中で調味できるという効果があ
る。The present invention has a paper thickness of 30 g / m @ 2 to 200 g.
A natto packaging material obtained by adhering a perforated plastic film to at least one side of a paper layer of / m2 through a synthetic resin emulsion coating layer, and having an air permeability of JIS-P8117 of 50 seconds / 100 cc to 1000 cc. Sec / 100cc,
Water vapor permeability of JIS-Z0208 is 500g / m2 ・ 24h
Since it is a natto packaging material having the characteristics of r to 3000 g / m 2 · 24 hr, it is suitable as a material for manufacturing a bag body because it is easy to dispose of waste because it is mainly composed of a paper layer and does not become bulky. It has characteristics of both air permeability and moisture permeability that are ideal for packaging natto, and by adjusting the paper layer, the material of synthetic resin emulsion, the number of applications or the opening rate of perforated plastic film, etc. Both the air permeability and the moisture permeability can be easily realized, and the bag body made of the present packaging material having excellent water resistance has an effect that seasoning liquid can be seasoned in the bag body without exuding the seasoning liquid.
【図1】本発明の納豆包装材料の一例を示す拡大した部
分断面図FIG. 1 is an enlarged partial sectional view showing an example of a natto packaging material of the present invention.
【図2】本発明の納豆包装材料を用いた袋体による納豆
包装体の例を示す断面正面図FIG. 2 is a sectional front view showing an example of a natto package with a bag using the natto packaging material of the present invention.
【図3】従来の納豆包装体の一例を示す断面正面図FIG. 3 is a sectional front view showing an example of a conventional natto package.
1 紙層 2 合成樹脂エマルジヨン塗工層 3 有孔プラスチツクフイルム 1 Paper layer 2 Synthetic resin emulsion coating layer 3 Perforated plastic film
Claims (1)
紙層の少なくとも片面に、合成樹脂エマルジヨン塗工層
を介して、有孔プラスチツクフイルムを接着してなる納
豆包装材料であって、JIS−P8117の透気度が5
0秒/100cc〜1000秒/100cc、JIS−
Z0208の透湿度が500g/m2・24hr〜30
00g/m2 ・24hrの特性を有する納豆包装材料。1. A natto packaging material comprising a perforated plastic film adhered to at least one surface of a paper layer having a paper thickness of 30 g / m @ 2 to 200 g / m @ 2 through a synthetic resin emulsion coating layer according to JIS -The air permeability of P8117 is 5
0 sec / 100 cc to 1000 sec / 100 cc, JIS-
Water vapor permeability of Z0208 is 500g / m2 ・ 24hr ~ 30
Natto packaging material with the characteristics of 00g / m 2 · 24 hr.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6320766A JPH08175571A (en) | 1994-12-22 | 1994-12-22 | Packaging material for fermented soybeans |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6320766A JPH08175571A (en) | 1994-12-22 | 1994-12-22 | Packaging material for fermented soybeans |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH08175571A true JPH08175571A (en) | 1996-07-09 |
Family
ID=18125024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6320766A Pending JPH08175571A (en) | 1994-12-22 | 1994-12-22 | Packaging material for fermented soybeans |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH08175571A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001310406A (en) * | 2000-04-28 | 2001-11-06 | Kagawa Atsuko | High moisture permeable film, bag for packaging by dealing with high moisture permeability, mushroom packaging sealing bag, fermented soybean packaging sealing bag and manufacturing method therefor |
WO2014074506A1 (en) * | 2012-11-06 | 2014-05-15 | Sonoco Development, Inc. | Resealable package film |
-
1994
- 1994-12-22 JP JP6320766A patent/JPH08175571A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001310406A (en) * | 2000-04-28 | 2001-11-06 | Kagawa Atsuko | High moisture permeable film, bag for packaging by dealing with high moisture permeability, mushroom packaging sealing bag, fermented soybean packaging sealing bag and manufacturing method therefor |
WO2014074506A1 (en) * | 2012-11-06 | 2014-05-15 | Sonoco Development, Inc. | Resealable package film |
US8746490B2 (en) | 2012-11-06 | 2014-06-10 | Sonoco Development, Inc. | Resealable package film |
USRE49960E1 (en) | 2012-11-06 | 2024-05-07 | Sonoco Development, Inc. | Resealable package film |
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