JP3866999B2 - Discolored gel sheet - Google Patents
Discolored gel sheet Download PDFInfo
- Publication number
- JP3866999B2 JP3866999B2 JP2002085062A JP2002085062A JP3866999B2 JP 3866999 B2 JP3866999 B2 JP 3866999B2 JP 2002085062 A JP2002085062 A JP 2002085062A JP 2002085062 A JP2002085062 A JP 2002085062A JP 3866999 B2 JP3866999 B2 JP 3866999B2
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- JP
- Japan
- Prior art keywords
- dye
- gel
- red
- support
- color
- 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 - Lifetime
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- Medicinal Preparation (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Laminated Bodies (AREA)
Description
【0001】
【発明の属する技術分野】
この発明は、保湿や冷却等に用いる含水ゲルを有した変色ゲルシートに関する。
【0002】
【従来の技術】
従来、体に貼付する冷却用の高含水ゲルシートは、貼付後体温等により膏体内の水分が飛散し、冷却効果がなくなると貼り替えを行っていた。その外、水分の飛散により含水ゲル膏体の粘着力が低下し、体表面から剥離し落下するなどの場合にも貼り替えを行っていた。
【0003】
【発明が解決しようとする課題】
上記従来の技術の高含水ゲルシートは、効果的に機能が持続する時間(以下、「持続時間」という。)が人によって様々であり、持続時間中はゲルシートを貼付しておくことが求められている。しかし、上記従来技術の場合、貼付時間が既定のものであったり、貼付者の独自の感覚で貼り替えが行われることにより、まだ効果があるにもかかわらず貼り替えたり、効果がなくなっても貼り続けていたりして、持続時間に関係なく貼り替えが行われていたという問題点があった。
【0004】
この発明は、上記従来技術の問題点に鑑みてなされたものであり、有機系天然素材の着色剤を加えることにより、着色剤の変色という事実に基づいて取替時期を知らせ、効果的な貼り替えが可能な変色ゲルシートを提供することを目的とする。
【0005】
【課題を解決するための手段】
この発明は、通気性のある支持体と、この支持体に積層された含水ゲルとを備え、上記含水ゲルの膏体内に有機系天然素材着色剤を加え、経時的に変色可能とした変色ゲルシートである。上記着色剤は、上記含水ゲル膏体内の水分量やpHの変化、又は体内からの分泌液と接触することで変色する。また、上記着色剤は、発色の異なる複数の着色剤や、変色条件の違う複数の着色剤を組み合わせたものでもよい。
【0006】
この発明に使用する着色剤としては、任意のpHの範囲内でのみ発色する着色剤として、アカキャベツ色素、アカゴメ色素、アカダイコン色素、アカビート色素、アトナー色素、ウコン色素、エルダーベリー色素、カカオ色素、カキ色素、カロテン色素、クチナシ青色素、クチナシ赤色素、クチナシ黄色素、シソ色素、トウガラシ色素、ブドウ果汁色素、ブドウ果皮色素、ベニコウジ色素、ベニコウジ黄色素、ベニバナ黄色素、ムラサキイモ色素、ムラサキトウモロコシ色素などがある。また、pHの変化又はタンパク質と反応して発色の色を変える着色剤として、コチニール色素、ラック色素などを用いることができる。
【0007】
この発明は、着色剤が膏体内の水分の飛散によりpHが変化することによって、膏体の色が変化し貼り替え時期を知らせる。または、体内から出てきた分泌液内のタンパク質と接触することによる膏体の色の変化により、貼り替え時期の目安となる。
【0008】
この発明において、上記着色剤は、膏体内の水分量の変化により発生するpHの変化、又は汗等とともに出てくる体液などと接触することによって変色するものであれば良く、変化前の色、変化後の色を確認し、適宜ブレンドして好ましい色を作ることができる。
【0009】
また上記含水ゲルは、ポリビニルアルコール、ポリビニルピロリドン、カルボキシメチルセルロースナトリウム、またはポリアクリル酸ナトリウム等から選ばれた1または複数の合成高分子1〜20%、水分50〜80%を適宜含むものである。
【0010】
【発明の実施の形態】
以下、この発明の実施の形態について図面に基づいて説明する。図1、図2はこの発明の一実施形態を示すもので、この実施形態の変色ゲルシート10は、支持体1に膏体層2が形成され、膏体層2は剥離フィルム3により覆われている。支持体1はゲル膏体層の浸潤がなく、貼付しやすさや剥がしやすさに必要な剛性と柔軟性を有するものであれば良く、不織布や織布等の通気性のあるものであれば、どのような材料でも使用できる。例えば、天然素材の不織布や合成繊維を用いた不織布が考えられる。剥離フィルム3は、通気性のない合成樹脂フィルムにより構成され、この発明においては特に制限はなく、公知のものを用い得る。
【0011】
支持体1、ゲル膏体層2及び剥離フィルム3の積層体は、通常は平面形状が楕円形にされるが、円形や四角形、種々の多角形などの任意の形状をとることができる。
【0012】
この実施形態の含水ゲルシート10は、アルミパウチ等により4方シールにて外気との接触をなくし、水分揮発を防止する密封容器に入れて輸送、保管するのが好ましい。
【0013】
次に、この実施形態の含水ゲルシート1の使用方法を説明する。使用に際してまず、剥離フィルム3を剥がし、ゲル膏体層2を貼付したい身体の部位に押しあててシワにならないように貼付する。貼付後時間の経過とともに、ゲル膏体層2内の水分が水蒸気となり蒸発していく。ゲル膏体層2内の水分が減少することにより、ゲル膏体層2内のpHが変化し、それによってゲル膏体内に含まれる着色剤が変色する。そして、このゲル膏体層2の所定の色への変色を確認して貼り替えを行う。
【0014】
なお、この発明の変色ゲルシートは、上記各実施形態に限定されるものではなく、不織布は、親水性非親水性を問わない。さらに、不織布は親水性繊維のものと疎水性繊維のものを積層したものでも良く、表面側に疎水性繊維の不織布を積層しておくと、表面を触ってもべたつきがない変色ゲルシートとすることができる。
【0015】
【実施例】
次に、この発明の実施例について説明する。表1はこの発明の一実施例に係わる含水ゲルシートの膏体配合量を示すものである。
【0016】
【表1】
【0017】
この実施例に使用している着色剤は、ヤエガキ醗酵技研株式会社にて製造販売されている食品添加物
着色料製剤 メロン色D(クチナシ青色素とベニコウジ黄色素の混合品)と、同メーカー商品群のうちpHの変化又は体液内のタンパク質と接触して色が変わるスターレッドKL(コチニール色素)を配合したものである。
【0018】
メロン色Dは、緑色となる。これにpHの変化及び体液と反応して色が変わるスターレッドKLを配合したもので両方の色が重なり、貼付前は、pHが4.9付近で淡茶色を呈している。それが水分の減少によりpH5.1で桃色を呈するようになる。人により、体液中のタンパク質と反応して赤色が濃くなる場合がある。
【0019】
上記配合比率にて作成した含水ゲルシートを6名の被験者に対し6時間貼付した結果は下記のとおりである。
試験日 : 平成14年2月15日
被験者 :
20代男性:3名、30代男性:2名、40代男性:1名(計6名)
試験方法: サンプルを足の裏に6時間貼付し確認した。
試験結果を表2に示す。
【0020】
ゲル膏体色の変化は下記のとおりである。
【表2】
【0021】
試験結果に対する考察
全員が茶系統の色から淡桃色〜淡赤色の変色が起こり、1時間貼付後に4名が変色し、5時間貼付後に2名が変色している。この中で淡桃色に変化しているものはpHの変化により色が変わったものであり、桃色又は赤色に変化しているものは体液と反応して赤みが強まったと判断される。
【0022】
【発明の効果】
この発明の変色ゲルシートは、張り替え時期を目で確認することができ、これまで以上に効果的な使用状態を維持することができる。そしてこれにより、無駄な張り替えや効果のない貼付を防止することができる。
【図面の簡単な説明】
【図1】 この発明の一実施形態の変色ゲルシートの図2のI−I線断面図である。
【図2】 この実施形態の変色ゲルシートの平面図である。
【符号の説明】
1 支持体
2 含水ゲル層
3 樹脂フィルム
10 含水ゲルシート[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a discolored gel sheet having a water-containing gel used for moisture retention and cooling.
[0002]
[Prior art]
Conventionally, a highly water-containing gel sheet for cooling to be applied to the body has been replaced when moisture in the plaster is scattered due to body temperature after application and the cooling effect is lost. In addition, the adhesive strength of the water-containing gel plaster body was reduced due to the scattering of water, and the paste was also replaced when it peeled off from the body surface and dropped.
[0003]
[Problems to be solved by the invention]
The high water content gel sheet of the above prior art has various durations of effective function (hereinafter referred to as “duration”) depending on the person, and the gel sheet is required to be stuck during the duration. Yes. However, in the case of the above prior art, even if the pasting time is fixed or the pasting is performed with the original sense of the paster, even if it is still effective, even if it is pasted or no longer effective There was a problem that the pasting was done regardless of the duration of the pasting.
[0004]
The present invention has been made in view of the above-described problems of the prior art, and by adding a colorant of an organic natural material, the replacement time is informed based on the fact that the colorant is discolored, and effective pasting is performed. An object is to provide a discolorable gel sheet that can be replaced.
[0005]
[Means for Solving the Problems]
The present invention provides a discoloration gel sheet comprising a breathable support and a water-containing gel laminated on the support, and an organic natural material colorant is added to the paste of the water-containing gel so that the color can be changed over time. It is. The colorant discolors when it comes into contact with a change in water content or pH in the hydrated gel plaster, or a secretion from the body. The colorant may be a combination of a plurality of colorants having different colors or a plurality of colorants having different color changing conditions.
[0006]
As the colorant used in the present invention, as a colorant that develops a color only within an arbitrary pH range, red cabbage dye, red omelet dye, red radish dye, red beet dye, atner dye, turmeric dye, elderberry dye, cacao dye , Oyster pigment, Carotene pigment, Gardenia blue pigment, Gardenia red pigment, Gardenia yellow pigment, Perilla pigment, Pepper pigment, Grape juice pigment, Grape skin pigment, Beniculium pigment, Beniculium yellow pigment, Safflower yellow pigment, Purple potato pigment, Murasaki corn There are pigments. Moreover, a cochineal dye, a rack dye, or the like can be used as a colorant that changes the color of the color by reacting with a change in pH or protein.
[0007]
According to the present invention, the color of the plaster changes due to the change in pH of the colorant due to the scattering of moisture in the plaster, thereby informing the time for replacement. Alternatively, the change in the color of the paste due to contact with the protein in the secretory fluid that has emerged from the body provides an indication of the time for replacement.
[0008]
In the present invention, the colorant may be any color as long as it changes color by contact with a change in pH caused by a change in the amount of water in the plaster or body fluid that comes out with sweat, etc. The color after the change can be confirmed and blended appropriately to make a preferable color.
[0009]
Moreover, the said water-containing gel contains suitably 1-20% of 1 or several synthetic polymers chosen from polyvinyl alcohol, polyvinyl pyrrolidone, sodium carboxymethylcellulose, sodium polyacrylate, etc., and water | moisture content 50-80%.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show an embodiment of the present invention. In the discoloration gel sheet 10 of this embodiment, a paste layer 2 is formed on a
[0011]
The laminate of the
[0012]
The water-containing gel sheet 10 of this embodiment is preferably transported and stored in a sealed container that prevents contact with the outside air by a four-side seal with an aluminum pouch or the like and prevents moisture volatilization.
[0013]
Next, the usage method of the water-containing
[0014]
In addition, the discoloration gel sheet of this invention is not limited to said each embodiment, A nonwoven fabric does not ask | require hydrophilic non-hydrophilic property. Furthermore, the nonwoven fabric may be a laminate of hydrophilic fibers and hydrophobic fibers, and if a nonwoven fabric of hydrophobic fibers is laminated on the surface side, it should be a discolored gel sheet that does not stick to the surface. Can do.
[0015]
【Example】
Next, examples of the present invention will be described. Table 1 shows the amount of paste contained in the hydrogel sheet according to one embodiment of the present invention.
[0016]
[Table 1]
[0017]
The colorant used in this example is a food additive colorant formulation manufactured and sold by Yaegaki Fermentation Giken Co., Ltd., Melon Color D (mixture of gardenia blue pigment and Benikouji yellow), and the manufacturer's product In the group, Star Red KL (cochineal dye) that changes color upon contact with changes in pH or protein in body fluid is blended.
[0018]
Melon color D is green. This is a blend of Star Red KL, which changes its pH by reacting with a change in pH and body fluid, and both colors overlap. Before sticking, it shows a light brown color with a pH of around 4.9. It becomes pink at pH 5.1 due to a decrease in moisture. Some people react with proteins in body fluids to darken the red color.
[0019]
The results of pasting the hydrogel sheet prepared at the above mixing ratio for 6 subjects for 6 hours are as follows.
Test date: February 15, 2002 Subject:
Men in their 20s: 3, Men in their 30s: 2, Men in their 40s: 1 (6 people in total)
Test method: A sample was affixed to the sole of the foot for 6 hours for confirmation.
The test results are shown in Table 2.
[0020]
The change in gel color is as follows.
[Table 2]
[0021]
Consideration for the test results All of them had a pale pink to light red color change from the color of the tea line, 4 people changed color after 1 hour, and 2 people changed color after 5 hours. Of these, those that have changed to light pink are those whose color has changed due to changes in pH, and those that have changed to pink or red are judged to have increased redness by reacting with body fluids.
[0022]
【The invention's effect】
The discoloration gel sheet of the present invention can visually check the re-uploading time, and can maintain a more effective use state than ever. Thereby, useless re-installation and sticking without effect can be prevented.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view taken along the line II of FIG. 2 of a discoloration gel sheet according to an embodiment of the present invention.
FIG. 2 is a plan view of a discoloration gel sheet of this embodiment.
[Explanation of symbols]
DESCRIPTION OF
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002085062A JP3866999B2 (en) | 2002-03-26 | 2002-03-26 | Discolored gel sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002085062A JP3866999B2 (en) | 2002-03-26 | 2002-03-26 | Discolored gel sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2003275233A JP2003275233A (en) | 2003-09-30 |
JP3866999B2 true JP3866999B2 (en) | 2007-01-10 |
Family
ID=29207103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002085062A Expired - Lifetime JP3866999B2 (en) | 2002-03-26 | 2002-03-26 | Discolored gel sheet |
Country Status (1)
Country | Link |
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JP (1) | JP3866999B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4632705B2 (en) * | 2004-07-12 | 2011-02-16 | 株式会社ニチエイ | Cosmetic sheet body |
JP2013102890A (en) * | 2011-11-11 | 2013-05-30 | Iris Ohyama Inc | Gel sheet |
CN102961211A (en) * | 2012-11-23 | 2013-03-13 | 纪华雷 | Temperature-displaying cooling sticker capable of warning failure |
CN109820637A (en) * | 2019-03-04 | 2019-05-31 | 广州市华晟健康产业有限公司 | One kind having the effect of long-acting moisturizing property Medical-use cold compress pad pasting |
-
2002
- 2002-03-26 JP JP2002085062A patent/JP3866999B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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JP2003275233A (en) | 2003-09-30 |
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