JP2010189814A - Sheet impregnated with chemical - Google Patents
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本発明は、手術前の身体部分の皮膚消毒や手術室の環境を消毒する目的で使用する医療用のヨード系消毒剤ポピドンの色を消す為の薬液含浸シートに関する。更に詳しくは、繊維屑が少なく広い面積での拭き取り性に優れた薬液含浸シートに関する。 The present invention relates to a chemical-impregnated sheet for removing the color of a medical iodine-type disinfectant popidone used for the purpose of disinfecting the skin of a body part before surgery and the environment of an operating room. More specifically, the present invention relates to a chemical liquid-impregnated sheet with little fiber waste and excellent wipeability in a wide area.
従来より、外用消毒剤の１つとして、強力な殺菌作用を持ち、日本薬局方にも収載されている医薬品としてポピドンヨードが使用されており、特許文献１には、ポピドンヨードを含浸させた不織布シートが開示されている。また、特許文献２には、清拭用として、高濃度アルコールを含浸させた合成繊維からなる不織布シートが開示されている。しかしながら、ポピドンヨード液は、色が褐色で特異な匂いがあり、衣服等に着色すると落ちにくい等の問題があった。 Conventionally, as one of external disinfectants, popidone iodine has been used as a medicine having a strong bactericidal action and also listed in the Japanese Pharmacopoeia. Patent Document 1 discloses a non-woven sheet impregnated with popidone iodine. It is disclosed. Patent Document 2 discloses a nonwoven fabric sheet made of synthetic fibers impregnated with high-concentration alcohol for wiping. However, the popidone iodine solution has a problem that it is brown and has a peculiar odor, and is difficult to remove when colored on clothes.
そこで、ポピドンヨード液の色消しと共に消毒殺菌効果を有し、ヨウ素の脱色と消毒効果を同時に発揮し、しかも、拭き取り、保液性および取り扱い性に優れ、且つ拭き取り面に繊維屑が残らない薬液含浸シートが、病院等より強く求められていた。本発明は、これらを改善したものである。 Therefore, it has a disinfection and sterilization effect as well as the discoloration of the popidone iodine solution, simultaneously demonstrates the decolorization and disinfection effects of iodine, and is excellent in wiping, liquid retention and handling properties, and no fiber waste remains on the wiping surface Sheets were strongly demanded by hospitals. The present invention is an improvement of these.
本発明の課題は、ポピドンヨード液のヨウ素の脱色効果と消毒効果を同時に発揮し、しかも、拭き取り、保液性および取り扱い性に優れ、且つ拭き取り面に繊維屑が残らない薬液含浸シートを提供することである。 An object of the present invention is to provide a chemical liquid-impregnated sheet that simultaneously exhibits the depigmenting effect and disinfecting effect of iodine in the popidone iodine solution, and that is excellent in wiping, liquid retention and handling properties, and that no fiber waste remains on the wiping surface. It is.
本発明者等は、セルロース繊維からなるシートにチオ硫酸ナトリウムとアルコールを含浸することで本発明の上記課題を解決できる事を見出し、本発明をなすに至った。
すなわち、本発明は以下の通りである。
（１）セルロース繊維を含有したシートに、チオ硫酸ナトリウムおよびアルコー水溶液を含浸させた事を特徴とする薬液含浸シート。
（２）シートのセルロース繊維の含有率が５０ｗｔ％以上であることを特徴とする上記１項に記載の薬液含浸シート。
（３）シートが不織布である事を特徴とする上記１または２項に記載の薬液含浸シート。
（４）薬液含浸シートを構成するシート、チオ硫酸ナトリウムおよびアルコー水溶液の重量比率が、１：０．０１〜０．４：１．５〜３．５の比率からなる事を特徴とする上記１〜３項のいずれか一項に記載の薬液含浸シート。
（５）シートが再生セルロース又は精製セルロースの繊維からなる長繊維不織布であることを特徴とする上記３または４項に記載の薬液含浸シート。
（６）パウチ式容器、ボトル式容器またはおしぼりタイプの包装袋に収納されている事を特徴とする上記１〜５項のいずれか一項に記載の薬液含浸シート。
（７）アルコールがエタノールであることを特徴とする上記１〜６項のいずれか一項に記載の薬液含浸シート。
The present inventors have found that the above-mentioned problems of the present invention can be solved by impregnating a sheet made of cellulose fibers with sodium thiosulfate and alcohol, and have made the present invention.
That is, the present invention is as follows.
(1) A chemical solution impregnated sheet obtained by impregnating a cellulose fiber-containing sheet with sodium thiosulfate and an aqueous alcohol solution.
(2) The chemical solution impregnated sheet according to the above item (1), wherein the cellulose fiber content of the sheet is 50 wt% or more.
(3) The chemical liquid impregnated sheet according to the above item 1 or 2, wherein the sheet is a nonwoven fabric.
(4) The above 1 characterized in that the weight ratio of the sheet constituting the chemical liquid impregnated sheet, sodium thiosulfate and the aqueous alcohol solution is in the ratio of 1: 0.01 to 0.4: 1.5 to 3.5. The chemical | medical solution impregnation sheet | seat as described in any one of -3.
(5) The chemical solution impregnated sheet as described in (3) or (4) above, wherein the sheet is a long-fiber nonwoven fabric made of regenerated cellulose or purified cellulose fibers.
(6) The chemical solution impregnated sheet according to any one of the above items 1 to 5, which is housed in a pouch-type container, a bottle-type container, or a hand towel type packaging bag.
(7) The chemical solution-impregnated sheet according to any one of the above items 1 to 6, wherein the alcohol is ethanol.
本発明の薬液含浸シートは、ポピドンヨード液のヨウ素の脱色効果と消毒効果を同時に発揮し、しかも、拭き取り、保液性および取り扱い性に優れ、且つ拭き取り面に繊維屑が残らないという優れた効果を有する。 The chemical liquid impregnated sheet of the present invention exhibits the effect of depigmenting and disinfecting iodine in the popidone iodine solution at the same time, and is excellent in wiping, liquid retention and handling properties, and no fiber waste remains on the wiping surface. Have.
本発明について以下具体的に説明する。
本発明におけるセルロース繊維とは、例えばビスコースレーヨンおよびキュプラ等の再生セルロース繊維、又は溶剤紡糸セルロース繊維（リヨセル）等の精製セルロース繊維や、コットン、コットンリンターおよびパルプ等の天然繊維素からなる繊維をいう。このようなセルロースからなる繊維は、薬液の含浸性に優れ、拭き取り時の肌への刺激が小さく好適な素材である。
The present invention will be specifically described below.
Cellulose fibers in the present invention include, for example, regenerated cellulose fibers such as viscose rayon and cupra, or purified cellulose fibers such as solvent-spun cellulose fibers (lyocell), and fibers composed of natural fiber elements such as cotton, cotton linter and pulp. Say. Such a fiber made of cellulose is a suitable material having excellent chemical liquid impregnation properties and little irritation to the skin during wiping.
本発明の薬液含浸シートに用いるシートは、セルロース繊維の含有率が５０重量％以上であることが好ましく、更に好ましくは８０重量％以上であり、最も好ましくは１００重量%である。セルロース繊維の含有により保液性が向上する。セルロース繊維は吸液性能、特に吸水性能に優れているが、その中で再生セルロース繊維及び精製セルロース繊維は綿等の天然セルロース繊維と比べても、非常に優れた吸水性能を持っているので好ましい。セルロース繊維が５０重量％未満であると保液性に乏しく、本発明の目的である吸液性および拭き取り性を満足することが困難となる。
本発明のシートに用いるセルロース繊維の単糸繊度も特に限定されるものではなく、０．１〜５ｄｔｅｘの範囲のものが好ましい。
The sheet used for the chemical solution-impregnated sheet of the present invention preferably has a cellulose fiber content of 50% by weight or more, more preferably 80% by weight or more, and most preferably 100% by weight. Liquid retention improves by containing cellulose fibers. Cellulose fibers are excellent in liquid absorption performance, particularly water absorption performance. Among them, regenerated cellulose fibers and purified cellulose fibers are preferable because they have excellent water absorption performance compared to natural cellulose fibers such as cotton. . When the cellulose fiber is less than 50% by weight, the liquid retention is poor, and it becomes difficult to satisfy the liquid absorption and wiping properties which are the objects of the present invention.
The single fiber fineness of the cellulose fiber used in the sheet of the present invention is not particularly limited, and is preferably in the range of 0.1 to 5 dtex.
本発明におけるシートとは、不織布、織物、編物および紙等、その構造は特に限定されるものではないが、薬液の含浸性や拭き取り性の観点から不織布シートである事が特に好ましい。 The sheet in the present invention is not particularly limited in its structure, such as a nonwoven fabric, a woven fabric, a knitted fabric, and paper, but is preferably a nonwoven fabric sheet from the viewpoint of chemical impregnation and wiping properties.
本発明で用いられる不織布の例としては、再生セルロース繊維やコットン等のセルロース繊維とポリエステル、ナイロンおよびポリプロプレン等の合成繊維を一定割合で混合した短繊維を水流絡合法によってシート化した不織布やニードルパンチ法、ケミカルボンド法およびサーマルボンド法によりシート化した短繊維不織布や溶剤紡糸法で製造したセルロース長繊維不織布やキュプラアンモニウム法で製造されるキュプラ長繊維不織布等が挙げられる。又、上述した短繊維不織布と長繊維不織布が複合化された不織布であってもよい。 Examples of nonwoven fabrics used in the present invention include nonwoven fabrics and needles obtained by sheeting a short fiber in which cellulose fibers such as regenerated cellulose fibers and cotton and synthetic fibers such as polyester, nylon and polypropylene are mixed at a certain ratio. Examples thereof include a short fiber nonwoven fabric formed into a sheet by a punch method, a chemical bond method, and a thermal bond method, a cellulose long fiber nonwoven fabric manufactured by a solvent spinning method, and a cupra long fiber nonwoven fabric manufactured by a cupra ammonium method. Moreover, the nonwoven fabric by which the short fiber nonwoven fabric mentioned above and the long fiber nonwoven fabric were compounded may be sufficient.
これらの上述した不織布の中で本発明の薬液含浸シートに用いる不織布として特に好ましいのは、例えば特表２００２-５２１５８２号公報に記載の精製セルロース長繊維であるリヨセル不織布や、キュプラアンモニア法レーヨン原液を流下緊張紡糸法によりネット上に連続紡糸し、繊維自体の自己接着や必要に応じて水流交絡により繊維を交絡させて不織布化した再生セルロース長繊維不織布である。これらの不織布は、構成する繊維が長繊維であるため皮膚や手術用器具を清拭したあとの繊維屑の脱落が極端に少ないので本発明の薬液含浸シートのシート材として特に好ましい。 Among these non-woven fabrics described above, particularly preferred as the non-woven fabric used in the chemical solution-impregnated sheet of the present invention is, for example, a lyocell non-woven fabric which is a purified cellulose long fiber described in JP-T-2002-521582, or a cupra ammonia method rayon stock solution. This is a regenerated cellulose long-fiber nonwoven fabric that is continuously spun onto the net by the flow-down tension spinning method and is made into a nonwoven fabric by self-adhesion of the fiber itself and, if necessary, the fibers are entangled by hydroentanglement. These non-woven fabrics are particularly preferable as the sheet material of the chemical liquid-impregnated sheet of the present invention because the constituent fibers are long fibers, and therefore there is extremely little loss of fiber waste after wiping the skin and surgical instruments.
また、これら再生セルロース連続長繊維不織布の場合は、前述した通り自己接着や水流交絡により不織布が形成される為、接着用の樹脂等のバインダーを使用しないので接着樹脂等のバインダー成分が薬剤等により溶出する事が極めて少なく拭き取り面の再汚染がないので好ましい。 In the case of these regenerated cellulose continuous long-fiber nonwoven fabrics, as described above, since the nonwoven fabric is formed by self-adhesion or hydroentanglement, a binder component such as an adhesive resin is not used. It is preferable because it does not elute very much and there is no recontamination of the wiping surface.
本発明のシートとして好適に用いる不織布には、開口部、凹部および凹凸等で形成された表面パターンが存在してもよい。開口部、凹凸部および表面パターンの形状は用途等を考慮して適宜選択すればよい。例えば楕円形、円型、正方形、長方形およびひし形等の独立したパターンや、それらの凹凸形状が組み合わされた、例えば杉綾形状のパターン等適宜選択すればよい。またその配列パターンも、例えば独立した開口部や凹部を千鳥配列にしたりする等、適宜選択すればよい。 In the nonwoven fabric suitably used as the sheet of the present invention, there may be a surface pattern formed by openings, recesses and irregularities. The shapes of the opening, the concavo-convex portion, and the surface pattern may be appropriately selected in consideration of the application and the like. For example, an independent pattern such as an elliptical shape, a circular shape, a square shape, a rectangular shape, and a rhombus shape, or a pattern having a concavo-convex shape, for example, a herringbone shape pattern may be appropriately selected. In addition, the arrangement pattern may be selected as appropriate, for example, by arranging independent openings and recesses in a staggered arrangement.
但し上述の独立した開口部や凹部のパターンを設ける場合には、開口部や凹部の１個あたりの面積は０．０５〜１０mm2が好ましく、より好ましくは０．１〜５mm2、更に好ましくは０．２〜２．５mm2である。開口部や凹部の１個あたりの面積が０．０５mm2未満では拭き取り等の寄与がほとんど得られない。また、開口部や凹部の１個あたりの面積が１０mm2を超えると拭き取り対象物が開口部や凹部を通過して手等を汚染する事がある。 However in the case of providing a separate opening or recess of the pattern described above, the area per one opening or recess is preferably 0.05 to 10 mm 2, more preferably 0.1 to 5 mm 2, more preferably 0.2 to 2.5 mm 2 . If the area per opening or recess is less than 0.05 mm 2 , contribution such as wiping is hardly obtained. Further, if the area per opening or recess exceeds 10 mm 2 , the object to be wiped may pass through the opening or recess and contaminate hands and the like.
上述したような表面パターンは、例えば不織布をメッシュ状のネットに乗せた状態で高圧液体流で処理する事により、ネットの交絡部の上にある不織布の繊維が高圧液体流で周囲に押しやられる事によって、好適に得る事ができる。また例えば金属ロールの表面に凹凸パターンを作成し、金属ロールとゴムロール間に圧力をかけながら不織布を通して凹凸形状をつけるいわゆるエンボス等の手法でも好適に得る事ができる。
薬液含浸シートの表面パターンの有無により、拭き取り性や通液性の機能性をコントロールしたり意匠性を向上させたりすることができる。
The surface pattern as described above is, for example, that the nonwoven fabric fibers on the entangled portion of the net are pushed to the surroundings by the high-pressure liquid flow by processing the nonwoven fabric on the mesh-shaped net with a high-pressure liquid flow. Can be suitably obtained. Further, for example, a method of forming a concavo-convex pattern on the surface of the metal roll and applying a concavo-convex shape through the nonwoven fabric while applying pressure between the metal roll and the rubber roll can be suitably obtained.
Depending on the presence or absence of the surface pattern of the chemical liquid impregnated sheet, it is possible to control the wiping performance and liquid permeability functionality or to improve the design.
本発明のセルロースを含有したシートの目付は１５ｇ〜２００g／m2が好ましく、より好ましくは３０g〜１００g／m2である。厚みは、０．０３〜１．２mmが好ましく、より好ましくは０．０５〜１．０mmである。
目付及び厚みは、用途により適宜選択が可能である。目付が上記の範囲であると、特に好適なシートとして用いる不織布の場合の強度が高く、製品とした場合に破れ難くなりリントの発生等実使用において問題を生じる事が無く、また繊維充填密度が適度な為、薬液を含浸した場合にソフトシートとなり拭き取り性が向上する。
The basis weight of the sheet containing cellulose of the present invention is preferably 15 g to 200 g / m 2 , more preferably 30 g to 100 g / m 2 . The thickness is preferably 0.03 to 1.2 mm, more preferably 0.05 to 1.0 mm.
The basis weight and thickness can be appropriately selected depending on the application. When the basis weight is in the above range, the strength is particularly high in the case of a nonwoven fabric used as a suitable sheet, and it is difficult to break when used as a product, and there is no problem in actual use such as generation of lint, and the fiber filling density is Since it is moderate, when it is impregnated with a chemical solution, it becomes a soft sheet and the wiping property is improved.
本発明の薬液含浸シートにおいて、薬液含浸シートを構成するセルロース繊維を含有したシート（Ａ）とチオ硫酸ナトリウム（Ｂ）及びアルコール水溶液（Ｃ）の重量比率は、Ａ：Ｂ：Ｃ＝１：０．０１〜０．４０：１．５〜３．５の範囲にあることが好ましい。
本発明において、アルコールは低級アルコールが好ましく、エタノールおよびイソプロパノ−ルがより好ましく、特にエタノールが好ましい。
In the chemical liquid impregnated sheet of the present invention, the weight ratio of the sheet (A) containing the cellulose fibers constituting the chemical liquid impregnated sheet, sodium thiosulfate (B), and the aqueous alcohol solution (C) is A: B: C = 1: 0. 0.01 to 0.40: preferably in the range of 1.5 to 3.5.
In the present invention, the alcohol is preferably a lower alcohol, more preferably ethanol or isopropanol, and particularly preferably ethanol.
薬液含浸シートを構成するチオ硫酸ナトリウム（Ｂ）の重量比率が、シート重量１に対して０．０１未満であるとポピドンヨード液の脱色効果が小さく、０．４を超えて配合しても脱色効果が向上しない。重量比率の好ましい範囲としては０．０５〜０．３５の範囲であリ、特に好ましくは、０．１０〜０．３０の範囲である。 When the weight ratio of sodium thiosulfate (B) constituting the chemical liquid impregnated sheet is less than 0.01 with respect to the sheet weight 1, the depigmenting effect of the popidone iodine solution is small, and even if it exceeds 0.4, the decoloring effect Does not improve. A preferred range of the weight ratio is 0.05 to 0.35, and particularly preferably 0.10 to 0.30.
薬液含浸シートを構成するアルコール水溶液の重量比率が、シート重量１に対して、１．５未満では含浸量が少なく拭き取り性に劣るものとなる。３．５を超えると含浸量が多すぎ拭き取り後に、シートからエタノール水溶液が脱落し拭き取り面にエタノール水溶液が残るという問題が発生する。好ましい範囲としては、２．０〜３．０であり、特に好ましくは、２．２〜２．８の範囲である。 If the weight ratio of the aqueous alcohol solution constituting the chemical liquid impregnated sheet is less than 1.5 relative to the sheet weight 1, the impregnation amount is small and the wiping property is poor. If it exceeds 3.5, the amount of impregnation is too large, and after wiping off, the ethanol aqueous solution falls off from the sheet and the ethanol aqueous solution remains on the wiping surface. A preferred range is 2.0 to 3.0, and a particularly preferred range is 2.2 to 2.8.
本発明において、チオ硫酸ナトリウム（Ｂ）とアルコール水溶液（Ｃ）の重量比率Ｂ／Ｃが特に重要である。Ｂ／Ｃは、１／３０〜１／５の範囲が好ましく、より好ましくは１／２０〜１／１０の範囲である。Ｂ／Ｃがこの範囲にあると、ポピドンヨード液のヨウ素の脱色効果と消毒効果を、同時に良好な効果として、発揮することができる。 In the present invention, the weight ratio B / C of sodium thiosulfate (B) and aqueous alcohol solution (C) is particularly important. B / C is preferably in the range of 1/30 to 1/5, more preferably in the range of 1/20 to 1/10. When B / C is in this range, the depigmenting effect and disinfecting effect of iodine in the popidone iodine solution can be exhibited as good effects at the same time.
本発明のアルコール水溶液とは、アルコール純度が７５ｖｏｌ％〜９６ｖｏｌ％の範囲にあるアルコールと、精製水等を任意の割合で混合した水溶液の事をいう。
本発明におけるエタノール水溶液とは、エタノール純度が７５ｖｏｌ％〜９６ｖｏｌ％の範囲にあるエタノールと精製水等を任意の割合で混合した水溶液の事をいう。混合後のエタノール水溶液中のエタノール純度は、３０ｖｏｌ％〜８５ｖｏｌ％の水溶液として用いる事が消毒効果の点から好ましい。エタノール純度が７５ｖｏｌ％〜９６ｖｏｌ％のエタノールの代表例としては、日本薬局方エタノールや消毒用エタノールが挙げられる。
The aqueous alcohol solution of the present invention refers to an aqueous solution obtained by mixing an alcohol having an alcohol purity in the range of 75 vol% to 96 vol% with purified water or the like at an arbitrary ratio.
The ethanol aqueous solution in the present invention refers to an aqueous solution in which ethanol having a purity of ethanol in the range of 75 vol% to 96 vol% and purified water are mixed at an arbitrary ratio. The ethanol purity in the ethanol aqueous solution after mixing is preferably used as a 30 vol% to 85 vol% aqueous solution from the viewpoint of the disinfection effect. Representative examples of ethanol having an ethanol purity of 75 vol% to 96 vol% include Japanese Pharmacopoeia ethanol and disinfectant ethanol.
本発明の薬液含浸シートは、使用時の形態は特に限定されず適宜用途に応じて扱い易い形状を選択する事ができる。例えば薬液含浸シートを広げた場合の形状が正方形や長方形等の多角形、円形や楕円形でも問題なく使用でき用途によって適宜選択すればよい。
例えば目付が高い場合には平版の形状でもよいし、おしぼりタイプのロール状でも良い。目付が低い場合には、四つ折りや八つ折り等の折品やシートを円柱状に巻き上げるとともにシートに切れ目を入れたロール状の形状であってもかまわない。
The chemical liquid impregnated sheet of the present invention is not particularly limited in form during use, and can be appropriately selected in a shape that is easy to handle depending on the application. For example, even when the shape of the sheet impregnated with the chemical solution is expanded, a polygon such as a square or a rectangle, a circle or an ellipse can be used without any problem and may be appropriately selected depending on the application.
For example, when the basis weight is high, a lithographic shape may be used, or a hand towel type roll may be used. When the basis weight is low, a folded product such as a quadruple fold or an eight fold or a sheet may be rolled up into a cylindrical shape, and a roll shape having a cut in the sheet may be used.
例えば折品について詳しく説明する。２５cm角の平版を４つ折りにする場合、両端を合わせて２つに折り出来上がった長方形（１２．５cm×１２．５cm）の短い端を合わせて更に２つに折ればよい。この場合拭き取り表面は１２．５cm角（１５６cm2）程度になり、ほとんどの部分が４枚重なった構造となる。この大きさは一般的な成人の手のひらの部分をおおよそカバーできる大きさであり作業性が向上する。 For example, a detailed description will be given of the folded product. When a 25 cm square planographic plate is folded in four, the short ends of a rectangle (12.5 cm × 12.5 cm) that has been folded into two by combining both ends may be folded in two. In this case, the surface to be wiped is about 12.5 cm square (156 cm 2 ), and most of the portions have a structure in which four sheets are overlapped. This size is a size that can roughly cover the palm portion of a general adult and improves workability.
又、本発明の薬液含浸シートのサイズは特に限定されず、使用用途、使用目的に応じて適宜選択できる。
又、本発明の薬液含浸シートへの薬剤の含浸方法は、薬剤が液体状で含浸される含浸方法であれば良い。例えば、アルコール水溶液にチオ硫酸ナトリウムを溶解した溶液にシートを浸漬させる方法、シートに薬液を噴霧・滴下させる方法、シートを包装材や容器に収納した後に薬液を充填する方法等が挙げられる。
Moreover, the size of the chemical | medical solution impregnation sheet | seat of this invention is not specifically limited, According to a use use and a use purpose, it can select suitably.
Moreover, the impregnation method of the chemical | medical agent to the chemical | medical solution impregnation sheet | seat of this invention should just be an impregnation method with which a chemical | medical agent is impregnated in a liquid state. For example, a method of immersing a sheet in a solution in which sodium thiosulfate is dissolved in an aqueous alcohol solution, a method of spraying and dropping a chemical on the sheet, a method of filling a chemical after storing the sheet in a packaging material or container, and the like can be given.
本発明においては、上述のような薬液含浸シートを包装袋や容器に収納する事により、密閉した薬液含浸シートの最終製品を得る事が出来る。この密閉された薬液含浸シートの最終製品は、パウチ式に収納するタイプ、おしぼりタイプのように基布1枚毎に包装するタイプおよび円柱状のロールタイプのシートを容器に収納するタイプ等が望ましい。 In the present invention, the final product of the sealed chemical solution impregnated sheet can be obtained by storing the chemical solution impregnated sheet as described above in a packaging bag or container. The final product of the sealed chemical solution impregnated sheet is preferably a pouch-type storage type, a type that wraps every base fabric such as a wet towel type, and a type that stores a cylindrical roll type sheet in a container. .
中でも、おしぼりタイプが使い易く好ましい。基布を１枚毎に包装した場合、使用時に必要とする個数の包装された含浸シートのみ開封する事ができるので、薬効を良好に維持する事ができ、しかも衛生的である。また必要な個数のみを衛生的に保持できるので、使い易く携帯にも便利である。また冬場の使用は、常温では冷たく抵抗があるが、おしぼりタイプでは、あらかじめ適度に保温して使用すれば冬場でも暖かく、快適に使用できる点で優れる。 Among these, the hand towel type is easy to use and is preferable. When the base fabrics are packaged one by one, only the number of packaged impregnated sheets required at the time of use can be opened, so that the medicinal effect can be maintained satisfactorily and hygienic. Moreover, since only the necessary number can be kept hygienically, it is easy to use and convenient to carry. The use in winter is cold and resistant at room temperature, but the hand towel type is excellent in that it can be used comfortably warmly in winter if it is kept warm in advance.
本発明の薬液含浸シートを収納するための包装・容器の材質は、通常薬剤に悪影響を与える事のない衛生性および安全性を有し、強度、ガスバリヤー性、遮光性、防湿性、耐熱性および耐寒性などの薬剤保存性に優れ、しかも、強度、シール性および印刷適正など加工性・製品性などの面で優れた素材であることが望ましい。 The material of the packaging / container for storing the chemical-impregnated sheet of the present invention usually has hygiene and safety that does not adversely affect the drug, and has strength, gas barrier properties, light shielding properties, moisture resistance, and heat resistance. In addition, it is desirable that the material is excellent in preservability of medicine such as cold resistance and excellent in terms of workability and productability such as strength, sealability and printing suitability.
特にパウチ式の包装材料やおしぼりタイプの包装材としては、上記特性を備えた材質を複数種組み合わせた積層樹脂フィルムを用いる事ができる。中でも、ポリエチレンテレフタレート（PET）層とアルミニウム箔（Al）層と未延伸ポリプロピレン（CPP）層とからなる積層フィルムが好ましい。このような積層フィルムは、衛生性および安全性を有し、強度、ガスバリヤー性、遮光性、防湿性、耐熱性および耐寒性などの薬剤保存性に優れ、しかも強度、ヒートシール性および印刷適性などの加工性・製品性並びにコストなどの面でも優れている。 In particular, as a pouch-type packaging material or a hand towel type packaging material, a laminated resin film in which a plurality of materials having the above characteristics are combined can be used. Among these, a laminated film composed of a polyethylene terephthalate (PET) layer, an aluminum foil (Al) layer, and an unstretched polypropylene (CPP) layer is preferable. Such a laminated film has hygiene and safety, is excellent in drug storage stability such as strength, gas barrier property, light shielding property, moisture proofing property, heat resistance and cold resistance, and has strength, heat sealability and printability. It is also excellent in terms of processability, productability and cost.
以下に本発明を実施例および比較例に基づいて説明する。しかし、本発明はこれらの実施例のみに限定されるものではない。
なお、本実施例で記載する拭き取り性、消毒性及び脱落繊維等の評価方法は以下の通りである。
Hereinafter, the present invention will be described based on examples and comparative examples. However, the present invention is not limited only to these examples.
In addition, the evaluation methods, such as the wiping property described in a present Example, disinfection, and a fallen fiber, are as follows.
（１）ポピドンヨード液の拭き取り性及び消毒性の評価
テーブルの上に１０％のポピドンヨード液５mlを噴霧する。次にテーブル上に広がったポピドンヨード液を本発明の薬液含浸シートにて拭き取り、状態を観察し、拭き取り性能（脱色性能）および消毒性能を下記基準で判定する。
○：ポピドンヨード液の褐色液がきれいに脱色されており、透明なアルコール液が均一にテーブル上に残り、拭き残りがない。
△：ポピドンヨード液の褐色液が若干残り、透明なアルコール液が不均一にテーブル上に残り、拭き取り斑が見られる。
×：ポピドンヨード液の褐色液がかなり残り、透明なアルコール液がほとんどテーブル上に残らず、かなり拭き残りが見られる。
(1) Evaluation of wipeability and disinfection of popidone iodine solution Spray 5 ml of 10% popidone iodine solution on a table. Next, the popidone iodine solution spread on the table is wiped off with the chemical solution impregnated sheet of the present invention, the state is observed, and the wiping performance (decoloring performance) and the disinfection performance are determined according to the following criteria.
○: The brown liquid of the popidone iodine liquid is neatly decolored, the transparent alcohol liquid remains uniformly on the table, and there is no wiping residue.
Δ: Some brown liquid of popidone iodine liquid remains, transparent alcohol liquid remains unevenly on the table, and wiping spots are observed.
X: The brown liquid of the popidone iodine liquid remains considerably, and the transparent alcohol liquid hardly remains on the table, and a considerable amount of wiping is observed.
（２）脱落繊維の評価
上記（１）にて試験した拭き取り後のテーブル上を目視により観察し、テーブル上に脱落繊維の存在の有無を下記基準で判定した。
○：テーブル上に全く脱落繊維が認められない。
△：テーブル上に１〜５本の脱落繊維が認められる。
×：テーブル上に６本以上の脱落繊維が認められる。
（３）開口部（貫通孔）および凹部の１個あたりの面積
シートを光学顕微鏡で１００倍に拡大し、開口部（貫通孔）および凹部の面積を、１０箇所測定し、平均値を１個あたりの面積とする。
(2) Evaluation of fallen fiber The table after wiping tested in (1) above was visually observed, and the presence or absence of the fallen fiber on the table was determined according to the following criteria.
○: No fallen fibers are observed on the table.
(Triangle | delta): 1-5 pieces of fallen fibers are recognized on a table.
X: Six or more fallen fibers are recognized on the table.
(3) Area per opening (through hole) and concave portion The sheet was magnified 100 times with an optical microscope, the area of the opening (through hole) and the concave portion was measured at 10 locations, and one average value was obtained. Per area.
（実施例１）
紡糸原液を作製した。このときの紡糸原液は、精製したコットンリンターを銅アンモニア溶液で溶解し、セルロースが１０ｗｔ％、銅が４ｗｔ％、アンモニアが７．５ｗｔ％、水が７８．５ｗｔ％であった。原液吐出孔の直径が０．６ｍｍで４５個／ｃm2の吐出孔を有した長方形の紡糸口金（５０ｍｍ×１８００ｍｍ）から原液を押し出し、紡糸水と共に漏斗内に入った原液は、脱アンモニアによる凝固と同時に流下緊張法により延伸させた。凝固した繊維は、通液可能なメッシュ構造のネット上に振り落としつつ、ネットをネット進行方向と垂直方向に振動させた。得られた１層のウエブの上に同様の条件で紡糸したウエブを更に４層重ね、最終的に５層重ねのセルロース連続長繊維ウエブを得た。得られたセルロース連続長繊維ウエブを希硫酸で再生し、水洗後、得られた再生セルロース連続長繊維ウエブを高圧水流で繊維を交絡させた後、熱風乾燥を行い、貫通孔及び凹部が表面に形成された再生セルロース連続長繊維不織布を得た。得られた再生セルロース連続長繊維不織布は、目付２７．５ｇ／m2、厚み０．４５mm、平均繊維径１５μｍであった。又、貫通孔および凹部の面積を光学顕微鏡により測定した結果、１．３５mm2であった。
Example 1
A spinning dope was prepared. The spinning dope at this time was obtained by dissolving purified cotton linter with a copper ammonia solution, and the cellulose was 10 wt%, copper was 4 wt%, ammonia was 7.5 wt%, and water was 78.5 wt%. The stock solution is extruded from a rectangular spinneret (50 mm × 1800 mm) having a diameter of 0.6 mm and a discharge hole of 45 pieces / cm 2 , and the stock solution that enters the funnel together with the spinning water is solidified by deammonia. At the same time, it was stretched by the falling tension method. The solidified fiber was vibrated in a direction perpendicular to the net traveling direction while being shaken off on a net having a mesh structure capable of passing liquid. Four layers of webs spun under the same conditions were stacked on the obtained one-layer web, and finally a five-layer cellulose continuous long fiber web was obtained. The obtained cellulose continuous long fiber web is regenerated with dilute sulfuric acid, washed with water, and the obtained regenerated cellulose continuous long fiber web is entangled with high-pressure water flow, followed by hot air drying, and through holes and recesses are formed on the surface. The formed regenerated cellulose continuous long fiber nonwoven fabric was obtained. The obtained regenerated cellulose continuous long fiber nonwoven fabric had a basis weight of 27.5 g / m 2 , a thickness of 0.45 mm, and an average fiber diameter of 15 μm. Further, the area of the through hole and the concave portion was measured with an optical microscope, and as a result, it was 1.35 mm 2 .
得られた再生セルロース連続長繊維不織布を幅１０ｃｍで長さ２００ｍ巻のシートにカットした後、直径１ｃｍ、長さ２５ｃｍ、重さ０．７ｇのおしぼり型のロール状品を作成した。このロール状品を、ポリエチレンフィルムの内層、アルミニウムシートの中間層およびポリエチレンテレフタレートフィルムの外層が一体積層された包装材の中に入れた。
次に、８０ｖｏｌ％のエタノール水溶液１００ｇに５ｇのチオ硫酸ナトリウムを溶解させた薬液を作成し、この薬液を包装材の中に１．８ｇ注入し、ロール状繊維シートに均一に薬液が含浸された薬液シートを作成した。この薬液シートを構成するシート（Ａ）、チオ硫酸ナトリウム（Ｂ）およびエタノール水溶液（Ｃ）の重量比率は、Ａ：Ｂ：Ｃ＝１：０．１２：２．４５である。
この薬液含浸シートを用いて前述した評価方法にてポピドンヨード液の拭き取り性能、消毒性及び脱落繊維の有無を評価した。評価結果を表１に示した。
表１から明らかなように本発明の薬液含浸シートは、ポピドンヨード液の脱色性や消毒性及び拭き取り性が良好で、脱落繊維が極めて少ない。
The obtained regenerated cellulose continuous long-fiber nonwoven fabric was cut into a sheet having a width of 10 cm and a length of 200 m, and then a hand-rolled product having a diameter of 1 cm, a length of 25 cm, and a weight of 0.7 g was prepared. This roll-shaped product was put in a packaging material in which an inner layer of a polyethylene film, an intermediate layer of an aluminum sheet, and an outer layer of a polyethylene terephthalate film were integrally laminated.
Next, a chemical solution in which 5 g of sodium thiosulfate was dissolved in 100 g of an 80 vol% ethanol aqueous solution was prepared, and 1.8 g of this chemical solution was injected into the packaging material, and the roll-shaped fiber sheet was uniformly impregnated with the chemical solution. A chemical sheet was prepared. The weight ratio of the sheet (A), the sodium thiosulfate (B), and the aqueous ethanol solution (C) constituting the chemical liquid sheet is A: B: C = 1: 0.12: 2.45.
Using this chemical solution impregnated sheet, the wiping performance of the popidone iodine solution, disinfection, and the presence or absence of fallen fibers were evaluated by the evaluation method described above. The evaluation results are shown in Table 1.
As is apparent from Table 1, the chemical liquid-impregnated sheet of the present invention has good depigmentation, disinfection and wiping properties of the popidone iodine solution, and has very few falling fibers.
（実施例２）
原液吐出量を少なくした以外は実施例１と同様の方法で、再生セルロース連続長繊維不織布を得た。得られた再生セルロース連続長繊維不織布は、目付１９ｇ／ｍ2、厚み０．２５ｍｍ、平均繊維径１５μｍであった。
得られた再生セルロース連続長繊維不織布と旭化成せんい株式会社製のポリプロピレンスパンボンド不織布（目付１８ｇ／m2、厚み０．１９ｍｍ）を重ねて高圧水流により複合化した後、乾燥させ複合シートを得た。得られた複合不織布は、目付３７ｇ／m2、厚み０．４１mmであり、不織布を構成するセルロース繊維の含有量は５１％であった。また、貫通孔および凹部の面積を実施例１と同様の方法で測定した結果、１．５５mm2であった。
得られた複合シートを幅２５ｃｍ、長さ１００ｍにスリットした後、折り機に仕掛けてタテ１２．５ｃｍ×ヨコ１２．５ｃｍの四つ折り品のシートを３０枚作成した。３０枚の重なったシートの重量は、７０ｇであった。
次に、この３０枚のシートを実施例１と同じ構成の包装材に収納した。
(Example 2)
A regenerated cellulose continuous long fiber nonwoven fabric was obtained in the same manner as in Example 1 except that the stock solution discharge amount was reduced. The obtained regenerated cellulose continuous long fiber nonwoven fabric had a basis weight of 19 g / m 2 , a thickness of 0.25 mm, and an average fiber diameter of 15 μm.
The obtained regenerated cellulose continuous long-fiber non-woven fabric and a polypropylene spunbond non-woven fabric (weight per unit: 18 g / m 2 , thickness: 0.19 mm) manufactured by Asahi Kasei Fibers Co., Ltd. were combined by a high-pressure water stream and dried to obtain a composite sheet. . The obtained composite nonwoven fabric had a basis weight of 37 g / m 2 and a thickness of 0.41 mm, and the content of cellulose fibers constituting the nonwoven fabric was 51%. Further, the area of the through hole and the concave portion was measured by the same method as in Example 1, and as a result, it was 1.55 mm 2 .
The obtained composite sheet was slit to a width of 25 cm and a length of 100 m, and then mounted on a folding machine to prepare 30 sheets of four-folded sheets of 12.5 cm vertical by 12.5 cm wide. The weight of the 30 stacked sheets was 70 g.
Next, these 30 sheets were accommodated in a packaging material having the same configuration as in Example 1.
次に、６０ｖｏｌ％のエタノール水溶液５００ｇに５０ｇのチオ硫酸ナトリウムを溶解させた薬液を作成し、この薬液を包装材の中に１４０ｇ注入し、シートに均一に薬液が含浸された薬液シートを作成した。この薬液シートを構成するシート（Ａ）、チオ硫酸ナトリウム（Ｂ）およびエタノール水溶液（Ｃ）の重量比率は、Ａ：Ｂ：Ｃ＝１：０．１８：１．８２である。
この薬液含浸シートを用いて前述した評価方法にてポピドンヨード液の拭き取り性能、消毒性及び脱落繊維の有無を評価した。評価結果を表１に示した。
表１から明らかなように本発明の薬液含浸シートは、ポピドンヨード液の脱色性や消毒性及び拭き取り性が良好で、脱落繊維が極めて少ない事が判る。
Next, a chemical solution in which 50 g of sodium thiosulfate was dissolved in 500 g of a 60 vol% ethanol aqueous solution was prepared, and 140 g of this chemical solution was injected into the packaging material to prepare a chemical solution sheet that was uniformly impregnated with the chemical solution. . The weight ratio of the sheet (A), the sodium thiosulfate (B), and the aqueous ethanol solution (C) constituting the chemical liquid sheet is A: B: C = 1: 0.18: 1.82.
Using this chemical solution impregnated sheet, the wiping performance of the popidone iodine solution, disinfection, and the presence or absence of fallen fibers were evaluated by the evaluation method described above. The evaluation results are shown in Table 1.
As can be seen from Table 1, the chemical solution impregnated sheet of the present invention has good depigmentation, disinfection and wiping properties of the popidone iodine solution, and it is found that there are very few fallen fibers.
（実施例３）
実施例１と全く同様の方法で、再生セルロース連続長繊維不織布を得た。得られた再生セルロース連続長繊維不織布から、実施例１と同様のおしぼり型のロール状品を作成した。このおしぼり型のロール状品を実施例１と同じ構成の包装材の中に入れた後、８０ｖｏｌ％のエタノール水溶液１００ｇに１６．７ｇのチオ硫酸ナトリウムを溶させた薬液を作成し、この薬液を包装材の中に１．４７ｇ注入し、ロール状繊維シートに均一に薬液が含浸された薬液シートを作成した。この薬液シートを構成するシート（Ａ）、チオ硫酸ナトリウム（Ｂ）およびエタノール水溶液（Ｃ）の重量比率は、Ａ：Ｂ：Ｃ＝１：０．３５：１．７５である。
(Example 3)
A regenerated cellulose continuous long fiber nonwoven fabric was obtained in the same manner as in Example 1. From the obtained regenerated cellulose continuous long-fiber non-woven fabric, a hand towel type roll-like product similar to Example 1 was prepared. After putting this hand towel type roll-shaped product in a packaging material having the same structure as in Example 1, a chemical solution in which 16.7 g of sodium thiosulfate was dissolved in 100 g of an 80 vol% aqueous ethanol solution was prepared. 1.47 g was injected into the packaging material to prepare a chemical liquid sheet in which the roll-like fiber sheet was uniformly impregnated with the chemical liquid. The weight ratio of the sheet (A), the sodium thiosulfate (B), and the aqueous ethanol solution (C) constituting the chemical liquid sheet is A: B: C = 1: 0.35: 1.75.
この薬液含浸シートを用いて前述した評価方法にてポピドンヨード液の拭き取り性能、消毒性及び脱落繊維の有無を評価した。評価結果を表１に示した。
表１から明らかなように本発明の薬液含浸シートは、ポピドンヨード液の脱色性や消毒性及び拭き取り性が良好で、脱落繊維が極めて少ない。
Using this chemical solution impregnated sheet, the wiping performance of the popidone iodine solution, disinfection, and the presence or absence of fallen fibers were evaluated by the evaluation method described above. The evaluation results are shown in Table 1.
As is apparent from Table 1, the chemical liquid-impregnated sheet of the present invention has good depigmentation, disinfection and wiping properties of the popidone iodine solution, and has very few falling fibers.
（実施例４）
長さ８ｍｍにカットした平均単繊度１．７ｄｔｅｘのビスコースレーヨン繊維６５ｗｔ％と長さ１２ｍｍにカットした平均単繊度１．０ｄｔｅｘのポリエステル繊維３５ｗｔ％とを水中に分散させ均一スラリーとして、長網式抄紙機により目付５０ｇ／m2の繊維抄造シートを製造した。この抄造シートを８０メッシュの金網の上に置き、直径０．１５ｍｍ、ピッチ０．８ｍｍの一列ノズルから７．５ｋｇ／ｃm2の水圧で水を噴霧し、２０ｍ／分の速度で移動しながら柱状流パンチングした。この操作を５回繰り返し繊維交絡シートとした後、８０℃のピンテンター式熱風乾燥機で乾燥して不織布状シートを作成した。
この不織布シートを実施例２と同様な方法で、１２．５ｃｍ×１２．５ｃｍの四つ折り品３０枚を作成した。３０枚重なったシートの重量は９５ｇであった。
Example 4
A 65mv viscose rayon fiber with an average single fineness of 1.7dtex cut to 8mm in length and 35wt% of polyester fiber with an average single fineness of 1.0dtex cut to a length of 12mm are dispersed in water as a uniform slurry, and a long mesh type A fiber paper sheet having a basis weight of 50 g / m 2 was produced by a paper machine. This paper sheet is placed on an 80-mesh wire mesh, water is sprayed from a single nozzle with a diameter of 0.15 mm and a pitch of 0.8 mm at a water pressure of 7.5 kg / cm 2 , and is moved in a column shape while moving at a speed of 20 m / min. I punched. This operation was repeated 5 times to obtain a fiber entangled sheet, which was then dried with an 80 ° C. pin tenter hot air dryer to prepare a nonwoven sheet.
Thirty quadruples of 12.5 cm × 12.5 cm were produced from this nonwoven fabric sheet in the same manner as in Example 2. The weight of the 30 stacked sheets was 95 g.
次に、実施例２と同一の包装材に収納した後、実施例２と同一の薬液を２５０ｇ注入し、シートに薬液が含浸された薬液シートを作成した。この薬液シートを構成するシート（Ａ）、チオ硫酸ナトリウム（Ｂ）およびエタノール水溶液（Ｃ）の重量比率は、Ａ：Ｂ：Ｃ＝１：０．２６：２．５である。
この薬液含浸シートを用いて前述した評価方法にてポピドンヨード液の拭き取り性能及び脱落繊維の有無を評価した。評価結果を表１に示した。
表１から明らかなように本発明の薬液含浸シートは、ポピドンヨード液の脱色性や拭き取り性が良好で、脱落繊維が極めて少ない事が判る。
Next, after storing in the same packaging material as in Example 2, 250 g of the same chemical solution as in Example 2 was injected to create a chemical sheet in which the sheet was impregnated with the chemical solution. The weight ratio of the sheet (A), the sodium thiosulfate (B), and the aqueous ethanol solution (C) constituting the chemical liquid sheet is A: B: C = 1: 0.26: 2.5.
Using this chemical solution impregnated sheet, the wiping performance of the popidone iodine solution and the presence or absence of dropped fibers were evaluated by the evaluation method described above. The evaluation results are shown in Table 1.
As is apparent from Table 1, the chemical solution impregnated sheet of the present invention has good depigmentation and wiping properties of the popidone iodine solution, and it is found that there are very few falling fibers.
（比較例）
直径が２０ｍｍ、重量０．５ｇ／個の市販の綿球（脱脂綿１００％）を１０個準備し、この１０個の綿球をビーカーに入れた後、実施例１で作成したチオ硫酸ナトリウムとアルコール水溶液を１２．５ｇ注入し、綿球に均一に薬液が含浸した綿球を作成した。この薬液含浸綿球、チオ硫酸ナトリウムおよびアルコール水溶液の重量比率は、１：０．１３：２．５である。
薬液が含浸された綿球を用いて前述した評価方法にてポピドンヨード液の拭き取り性能及び脱落繊維の有無を評価した。評価結果を表１に示した。
表１から明らかなように本発明の薬液含浸シートは、ポピドンヨード液の脱色性や拭き取り性に劣り、脱落繊維も極めて劣る事が判る。
(Comparative example)
Ten commercially available cotton balls (100% absorbent cotton) having a diameter of 20 mm and a weight of 0.5 g / piece were prepared. After putting these ten cotton balls in a beaker, sodium thiosulfate and alcohol prepared in Example 1 were used. 12.5 g of an aqueous solution was injected to create a cotton ball in which a chemical solution was uniformly impregnated into the cotton ball. The weight ratio of this chemical-impregnated cotton ball, sodium thiosulfate, and aqueous alcohol solution is 1: 0.13: 2.5.
Using a cotton ball impregnated with a chemical solution, the wiping performance of the popidone iodine solution and the presence or absence of dropped fibers were evaluated by the evaluation method described above. The evaluation results are shown in Table 1.
As can be seen from Table 1, the chemical solution impregnated sheet of the present invention is inferior in the depigmentation and wiping properties of the popidone iodine solution, and the fallen fibers are also inferior.
本発明によれば、ポピドンヨード液の脱色効果に優れ、かつ拭き取り性に優れた繊維屑の発生がほとんどない薬液含浸シートを得る事が出来るので、産業上の利用可能性は極めて大きい。 According to the present invention, it is possible to obtain a chemical liquid-impregnated sheet that is excellent in the depigmenting effect of the popidone iodine liquid and that has almost no wiping property, and thus has a great industrial applicability.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009036856A JP2010189814A (en) | 2009-02-19 | 2009-02-19 | Sheet impregnated with chemical |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009036856A JP2010189814A (en) | 2009-02-19 | 2009-02-19 | Sheet impregnated with chemical |
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|---|---|
| JP2010189814A true JP2010189814A (en) | 2010-09-02 |
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| JP2009036856A Pending JP2010189814A (en) | 2009-02-19 | 2009-02-19 | Sheet impregnated with chemical |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013142235A (en) * | 2012-01-10 | 2013-07-22 | Ｙｋｋ Ａｐ株式会社 | Lock device and fixture |
| WO2015147551A1 (en) * | 2014-03-26 | 2015-10-01 | 주식회사 엘지화학 | Method for manufacturing polarizing members comprising locally bleached region, method for manufacturing polarizing member rolls, and method for manufacturing single-type polarizing members |
-
2009
- 2009-02-19 JP JP2009036856A patent/JP2010189814A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013142235A (en) * | 2012-01-10 | 2013-07-22 | Ｙｋｋ Ａｐ株式会社 | Lock device and fixture |
| WO2015147551A1 (en) * | 2014-03-26 | 2015-10-01 | 주식회사 엘지화학 | Method for manufacturing polarizing members comprising locally bleached region, method for manufacturing polarizing member rolls, and method for manufacturing single-type polarizing members |
| US10436960B2 (en) | 2014-03-26 | 2019-10-08 | Lg Chem, Ltd. | Methods for manufacturing polarizing element, polarizing element roll and single sheet type polarizing element having local bleaching areas |
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