JP2009201440A - Freshness-retaining sheet - Google Patents

Freshness-retaining sheet Download PDF

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Publication number
JP2009201440A
JP2009201440A JP2008048736A JP2008048736A JP2009201440A JP 2009201440 A JP2009201440 A JP 2009201440A JP 2008048736 A JP2008048736 A JP 2008048736A JP 2008048736 A JP2008048736 A JP 2008048736A JP 2009201440 A JP2009201440 A JP 2009201440A
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Prior art keywords
freshness
sheet
nonwoven fabric
keeping
roller
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JP5308693B2 (en
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Yoichi Shindo
陽一 神堂
Hiroki Yasumatsu
博己 安松
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SHINDO KK
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SHINDO KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a freshness-retaining sheet which does not attenuate a freshness-retaining effect, even when washed many times. <P>SOLUTION: A sheet 2 is used for holding the freshness of raw meats, raw fishes, vegetables, or the like, characterized in that the sheet 2 is formed of a flexible material such as nonwoven fabric or paper, and nano silver particles are infiltrated and fixed to the fibers of the material. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、生肉,鮮魚,野菜等の鮮度を保持するために使用される鮮度保持シートに関するものである。   The present invention relates to a freshness-keeping sheet used for keeping freshness of raw meat, fresh fish, vegetables and the like.

従来、食品の鮮度を良好に保持できる鮮度保持用シートとして、例えば特許文献1に開示されているようなものが存在する。
特開平7−17581号公報
2. Description of the Related Art Conventionally, as a freshness-holding sheet that can satisfactorily maintain the freshness of food, for example, there is a sheet disclosed in Patent Document 1.
JP-A-7-17581

上記従来の鮮度保持用シートでは、鮮度保持用シートを洗濯等して何回も再使用する場合に、含有された鮮度保持成分が流出し、鮮度保持効果が減衰してしまうという問題点があった。   The above-mentioned conventional freshness-keeping sheet has a problem in that when the freshness-keeping sheet is washed and reused many times, the contained freshness-keeping component flows out and the freshness-keeping effect is attenuated. It was.

本発明は、洗濯等をしても鮮度保持効果の減衰しない鮮度保持用のシートを提供することを目的の1つとし、この目的の少なくとも一部を達成するために以下の手段を採った。
本発明は、生肉,鮮魚,野菜等の鮮度保持用に使用されるシートであって、該シートは、不織布,紙類の柔軟性のある素材で構成され、該素材の繊維に銀のナノ粒子が浸透固着されていることである。
An object of the present invention is to provide a sheet for keeping freshness that does not attenuate the freshness-keeping effect even after washing, and the following measures have been taken in order to achieve at least a part of this purpose.
The present invention is a sheet used for maintaining freshness of raw meat, fresh fish, vegetables, etc., and the sheet is composed of a flexible material such as a nonwoven fabric or paper, and silver nanoparticles are used as the fibers of the material Is penetrating and fixing.

本発明の鮮度保持シートでは、シートを構成する不織布,紙類の繊維に銀のナノ粒子が強固に浸透固着されており、シートを洗濯しても、固着されている銀のナノ粒子が流出することがなく、長期間鮮度保持効果を持続することができるものである。   In the freshness-keeping sheet of the present invention, silver nanoparticles are firmly permeated and fixed to the nonwoven fabric and paper fibers constituting the sheet, and the fixed silver nanoparticles flow out even when the sheet is washed. And the effect of maintaining the freshness for a long time can be maintained.

次に、本発明を実施するための最良の形態を実施例を用いて説明する。
本実施例の鮮度保持シートは、図1に示すような製造装置を用いて製造される。
図において、製造装置のセット部1に、不織布2の原反巻きをセットする。この不織布2は、綿100%の不織布で、例えば800mm程度の幅寸法を有し、不織布2の原反巻きは、紙管に1800m程度の長さのものが巻着されたものである。
Next, the best mode for carrying out the present invention will be described using examples.
The freshness-holding sheet of this example is manufactured using a manufacturing apparatus as shown in FIG.
In the figure, the raw fabric winding of the nonwoven fabric 2 is set on the set portion 1 of the manufacturing apparatus. This non-woven fabric 2 is a non-woven fabric made of 100% cotton and has a width of about 800 mm, for example, and the raw fabric of the non-woven fabric 2 is a paper tube having a length of about 1800 m.

このように不織布2の原反巻きをセット部1に回転可能にセットし、不織布2を上ローラー3aと下ローラー3b間に挟み込んで、順次略水平に引き出してゆく。この下ローラー3bの下方には、例えば水槽4等を設けておき、上ローラー3aと下ローラー3b間に挟まれて下流側へ引き出される不織布2を湿らせることができるものである。
引き出された不織布2は、ガイドローラー5から、反時計方向に回転する浸漬ローラー6を介し下方側に向かって導かれ、浸漬ローラー6の下方に設置されている銀イオン電解液槽7内に不織布2が浸漬される。
In this way, the raw fabric winding of the nonwoven fabric 2 is set so as to be rotatable on the setting portion 1, and the nonwoven fabric 2 is sandwiched between the upper roller 3a and the lower roller 3b and sequentially pulled out substantially horizontally. Below this lower roller 3b, for example, a water tank 4 or the like is provided so that the nonwoven fabric 2 sandwiched between the upper roller 3a and the lower roller 3b and drawn out downstream can be moistened.
The drawn nonwoven fabric 2 is guided downward from the guide roller 5 via a dipping roller 6 that rotates counterclockwise, and is placed in a silver ion electrolyte bath 7 that is installed below the dipping roller 6. 2 is immersed.

この銀イオン電解液槽7内には、100〜500倍の水による希釈率の銀のナノ粒子が分散状に存在し、銀のナノ粒子は、例えば粒子径3nm〜100nmの粒子で構成されている。
なお、このような銀のナノ粒子は、例えば特開2006−213955号公報に開示されているような製造方法で製造された銀の粒子粉末である。
In the silver ion electrolytic solution tank 7, silver nanoparticles having a dilution ratio of 100 to 500 times water are present in a dispersed state, and the silver nanoparticles are composed of particles having a particle diameter of 3 nm to 100 nm, for example. Yes.
Such silver nanoparticles are, for example, silver particle powders manufactured by a manufacturing method as disclosed in JP-A-2006-213955.

浸漬ローラー6の回転に従って、浸漬ローラー6の外周の不織布2は銀イオン電解液槽7内の銀イオン電解液に所謂ドブ漬けされ、この時に、不織布2を構成する繊維に銀のナノ粒子が浸透し、1個所に銀のナノ粒子が集積することなく、銀のナノ粒子が不織布2の繊維全体に良好に分散された状態で浸透される。   As the immersion roller 6 rotates, the nonwoven fabric 2 on the outer periphery of the immersion roller 6 is soaked in the silver ion electrolyte solution in the silver ion electrolyte bath 7, and at this time, the silver nanoparticles penetrate into the fibers constituting the nonwoven fabric 2. The silver nanoparticles are permeated in a state of being well dispersed throughout the fibers of the nonwoven fabric 2 without the silver nanoparticles accumulating at one place.

このように不織布2の繊維全体に銀のナノ粒子を浸透させて固着させた状態で、下流側に設けられている絞り上ローラー8aと絞り下ローラー8b間に不織布2が挟持されて、このローラー8a,8b間で不織布2が絞り力を受けて絞られ、その後に、下流側の乾燥装置9内に不織布2が導入される。
この乾燥装置9内では、内部に例えば13個所に熱源が配置されて、下流側へ不織布2が移動する間に不織布2を構成する繊維が良好に乾燥され、繊維に浸透固着されている銀のナノ粒子がこの乾燥装置9を通ることで定着されることとなる。
In this manner, the nonwoven fabric 2 is sandwiched between the upper drawing roller 8a and the lower drawing roller 8b provided on the downstream side in a state in which the silver nanoparticles are infiltrated and fixed to the entire fibers of the nonwoven fabric 2, and this roller The nonwoven fabric 2 is squeezed by receiving a squeezing force between 8a and 8b, and then the nonwoven fabric 2 is introduced into the drying device 9 on the downstream side.
In this drying device 9, heat sources are arranged at, for example, 13 locations inside, and the fibers constituting the nonwoven fabric 2 are well dried while the nonwoven fabric 2 moves to the downstream side. The nanoparticles are fixed by passing through the drying device 9.

なお、この乾燥装置9では、不織布2の厚みや種類や寸法等に応じて乾燥時間を適正に制御できるように構成されており、不織布2の繊維に浸透固着された銀のナノ粒子が確実に定着されるように制御される。乾燥装置9の下流側には、巻取り部10が設けられており、この巻取り部10で不織布2は巻き取られることとなる。
なお、巻き取られた不織布2は、その後、例えば400mm×400mm程度の寸法に切断加工される。
In addition, in this drying apparatus 9, it is comprised so that drying time can be controlled appropriately according to the thickness of the nonwoven fabric 2, a kind, a dimension, etc., and the silver nanoparticle which osmotically fixed to the fiber of the nonwoven fabric 2 is ensured. It is controlled to be fixed. A winding unit 10 is provided on the downstream side of the drying device 9, and the nonwoven fabric 2 is wound up by the winding unit 10.
Note that the wound nonwoven fabric 2 is then cut into a size of, for example, about 400 mm × 400 mm.

このようにして繊維全体に分散させて銀のナノ粒子を浸透固着させ、かつ強固に定着させて不織布2製の鮮度保持シートを得ることができ、このようにして得られた鮮度保持シートは、例えば洗濯を50〜100回繰り返しても浸透固着された銀のナノ粒子が脱落することがなく、長期間の再使用においても銀イオンによる鮮度保持効果が持続されるものである。   In this way, it is possible to obtain a freshness-maintaining sheet made of nonwoven fabric 2 by dispersing and fixing silver nanoparticles in the whole fiber and firmly fixing it, and the freshness-holding sheet thus obtained is For example, even if washing is repeated 50 to 100 times, the silver nanoparticles that have been permeated and fixed do not fall off, and the freshness retention effect by silver ions is maintained even after long-term reuse.

なお、本例では、綿100%の不織布2を用いて鮮度保持シートを形成した場合を例示しているが、不織布2に代えて、繊維組織を有する柔軟性のある紙類で鮮度保持シートを形成させても良く、図1に示したような製造装置で、紙類においてもその繊維全体に分散させて良好に銀のナノ粒子を浸透固着させ、かつ定着させることができるものである。   In addition, in this example, although the case where the freshness maintenance sheet | seat is formed using the nonwoven fabric 2 of 100% cotton is illustrated, it replaces with the nonwoven fabric 2, and a freshness maintenance sheet | seat is used with the flexible papers which have a fiber structure. In the manufacturing apparatus as shown in FIG. 1, even in papers, silver nanoparticles can be satisfactorily permeated and fixed and fixed by using the manufacturing apparatus as shown in FIG.

このようにして得られた鮮度保持シートは、例えば生肉,鮮魚,野菜等の冷凍,冷蔵保存時に、この鮮度保持シートで包むか、或いは生肉等の下に鮮度保持シートを敷設したり、生肉等の上面に直接触れるように鮮度保持シートを被せることにより、良好に生肉等の鮮度保持ができるものである。   The freshness-keeping sheet thus obtained is wrapped with this freshness-keeping sheet, for example, when frozen, refrigerated and preserved for raw meat, fresh fish, vegetables, etc. The freshness of raw meat and the like can be satisfactorily maintained by covering the freshness-holding sheet so as to directly touch the upper surface of the meat.

このように鮮度保持シートに直接生肉等の食材が当たるようにして鮮度保持シートを使用し、更には水分の蒸発を防ぐために密閉容器内に入れて、密閉容器の底に鮮度保持シートを敷き詰める等して使用することができ、また、食材をこの鮮度保持シートで包んで、更にその外側をラップで包んで密閉するようにして使用することもできるものである。
特に、鮨ネタの保存などには、トレイに鮮度保持シートを敷き、その上に鮨ネタを置く等して保存ができるものである。
更には、大型のマグロ等を大寸法の鮮度保持シートでその全体を包み込んで、鮮度保持状態で良好に輸送することができるものである。
食材を包んだ状態において、野菜等では銀イオンによる鮮度保持効果によりエチレンガスの発生が少なくなり、また、良好に酸化を防止できるものである。
In this way, the freshness-holding sheet is directly applied to the freshness-holding sheet, and the freshness-holding sheet is used. Further, in order to prevent moisture evaporation, the freshness-holding sheet is placed on the bottom of the sealed container. It is also possible to wrap the foodstuff with this freshness-holding sheet and then wrap the outside with a wrap and seal it.
In particular, the storage of rice cake can be saved by placing a freshness maintaining sheet on the tray and placing the rice cake on the tray.
Furthermore, large tuna and the like can be wrapped in a large-size freshness-holding sheet and transported satisfactorily in a freshness-keeping state.
In the state of wrapping the ingredients, vegetables and the like are less likely to generate ethylene gas due to the freshness maintaining effect of silver ions, and can be satisfactorily prevented from oxidation.

なお、本例の鮮度保持シートは、財団法人日本紡績検査協会の試験では、殺菌活性値が3.0以上となっており、また、静菌活性値は5.5以上の試験結果が得られており、特に、食中毒と悪臭の原因菌である黄色ぶどう球菌の減菌率が99.9%であり、優れた抗菌力が確保されている。
また、肺炎などの原因菌である肺炎桿菌に対しても減菌率が99.9%の試験結果が得られている。
The freshness-keeping sheet of this example has a bactericidal activity value of 3.0 or more and a bacteriostatic activity value of 5.5 or more in the test of the Japan Spinning Inspection Association. In particular, the sterilization rate of Staphylococcus aureus which is a causative agent of food poisoning and malodor is 99.9%, and an excellent antibacterial activity is secured.
In addition, a test result with a sterilization rate of 99.9% was obtained against Klebsiella pneumoniae, which is a causative bacterium such as pneumonia.

鮮度保持シートの製造装置の概略構成図である。It is a schematic block diagram of the manufacturing apparatus of a freshness keeping sheet.

符号の説明Explanation of symbols

1 セット部
2 不織布
3a,3b ローラー
6 浸漬ローラー
7 銀イオン電解液槽
8a,8b 絞りローラー
9 乾燥装置
10 巻取り部
DESCRIPTION OF SYMBOLS 1 Set part 2 Nonwoven fabric 3a, 3b Roller 6 Immersion roller 7 Silver ion electrolytic solution tank 8a, 8b Drawing roller 9 Drying device 10 Winding part

Claims (1)

生肉,鮮魚,野菜等の鮮度保持用に使用されるシートであって、
該シートは、
不織布,紙類の柔軟性のある素材で構成され、該素材の繊維に、銀のナノ粒子が浸透固着されている
ことを特徴とする鮮度保持シート。
A sheet used to maintain freshness of raw meat, fresh fish, vegetables, etc.
The sheet is
A freshness-keeping sheet comprising a flexible material such as nonwoven fabric or paper, and silver nanoparticles permeating and adhering to fibers of the material.
JP2008048736A 2008-02-28 2008-02-28 Method for producing freshness-holding sheet Active JP5308693B2 (en)

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JP2009201440A true JP2009201440A (en) 2009-09-10
JP5308693B2 JP5308693B2 (en) 2013-10-09

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06105650A (en) * 1992-09-28 1994-04-19 Toppan Printing Co Ltd Bag for retaining freshness of cut vegetable
JPH07324277A (en) * 1994-05-31 1995-12-12 Tsudakoma Corp Steeping roller type warp sizing machine
JPH08158242A (en) * 1994-12-06 1996-06-18 Japan Exlan Co Ltd Method for squeezing tow of acrylic fiber provided with crimp and device therefor
JPH09172952A (en) * 1995-12-26 1997-07-08 Unitika Res Lab:Kk Sheet for retaining freshness
JPH10271981A (en) * 1997-01-29 1998-10-13 Kenji Nakamura Packaging material for perishable food
JP2006213955A (en) * 2005-02-02 2006-08-17 Dowa Mining Co Ltd Particle powder of silver and method for producing the same
JP2006305983A (en) * 2005-05-02 2006-11-09 Home Round Paper Co Ltd Method for manufacturing combined material with sterilization/activation effect and manufacturing device for the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06105650A (en) * 1992-09-28 1994-04-19 Toppan Printing Co Ltd Bag for retaining freshness of cut vegetable
JPH07324277A (en) * 1994-05-31 1995-12-12 Tsudakoma Corp Steeping roller type warp sizing machine
JPH08158242A (en) * 1994-12-06 1996-06-18 Japan Exlan Co Ltd Method for squeezing tow of acrylic fiber provided with crimp and device therefor
JPH09172952A (en) * 1995-12-26 1997-07-08 Unitika Res Lab:Kk Sheet for retaining freshness
JPH10271981A (en) * 1997-01-29 1998-10-13 Kenji Nakamura Packaging material for perishable food
JP2006213955A (en) * 2005-02-02 2006-08-17 Dowa Mining Co Ltd Particle powder of silver and method for producing the same
JP2006305983A (en) * 2005-05-02 2006-11-09 Home Round Paper Co Ltd Method for manufacturing combined material with sterilization/activation effect and manufacturing device for the same

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