JP2012223379A - Surgical material and drape - Google Patents

Surgical material and drape Download PDF

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JP2012223379A
JP2012223379A JP2011093798A JP2011093798A JP2012223379A JP 2012223379 A JP2012223379 A JP 2012223379A JP 2011093798 A JP2011093798 A JP 2011093798A JP 2011093798 A JP2011093798 A JP 2011093798A JP 2012223379 A JP2012223379 A JP 2012223379A
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nonwoven fabric
surgical
surgical material
polyolefin
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Hideki Fukunaga
秀樹 福永
Yasushi Miyahara
康史 宮原
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Livedo Corp
Nagase and Co Ltd
Okura Industrial Co Ltd
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Livedo Corp
Nagase and Co Ltd
Okura Industrial Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a surgical material, especially used for a surgical drape or a surgical gown, which prevents lint or fuzz, has no glossiness, is light in weight, and has waterproof effect and liquid absorbency, and to provide a drape.SOLUTION: The surgical material is formed by laminating a polyolefin-based film and spunbonded nonwoven fabric. The surgical material uses the spunbonded nonwoven fabric configured so that the total area of thermal bonding parts each having area of 0.15 to 0.50 mm, is 5 to 15% of the whole of the spunbonded nonwoven fabric. The drape is made of the surgical material.

Description

本発明は、手術用資材に関するものであり、さらに詳しくは、手術着や手術用覆布などに適した布帛状の資材(以下、手術用資材という)に関するものである。   The present invention relates to a surgical material, and more particularly to a fabric-like material (hereinafter referred to as a surgical material) suitable for a surgical gown, a surgical cover, and the like.

従来、手術の際に患者を覆う手術用覆布や医者や看護士が着用する手術着として、織布、編物、不織布、あるいはプラスチックフィルム等が用いられてきた。これらの手術着や手術用覆布には、発塵や毛羽立ちが少なく、軽量で防水性、吸液性などの特性が要求されている。特許文献1には、メルトブロー不織布の両面に脂肪族ポリエステル樹脂からなり、特定範囲の初期引張抵抗度と引張強さを有する連続長繊維で構成されるスパンボンド不織布を積層してなる三層構造の積層体シートが柔軟性と透湿性に優れ、医療分野におけるガウン、ドレープ等の手術用資材に好適であることが記載されている。   Conventionally, woven fabrics, knitted fabrics, non-woven fabrics, plastic films, and the like have been used as surgical coverings that cover patients during surgery and surgical clothing worn by doctors and nurses. These surgical gowns and surgical coverings are required to have properties such as lightness, waterproofness, liquid absorption, and the like that are less dusty and fuzzy. Patent Document 1 has a three-layer structure in which a spunbond nonwoven fabric composed of continuous long fibers having an initial tensile resistance and tensile strength in a specific range is laminated on both sides of a meltblown nonwoven fabric. It is described that the laminate sheet is excellent in flexibility and moisture permeability and suitable for surgical materials such as gowns and drapes in the medical field.

また、特許文献2には、ポリオレフィン繊維と吸水性繊維からなる吸水性不織布層と、少なくとも1層のメルトブロー法あるいはスパンボンド法で得られたポリオレフィン不織布層から形成されてなる不織布積層体は、吸湿性に優れ、かつ強度、バクテリアバリア性、耐熱性等に優れ、メディカル用材料として好適であることが記載されている。   Patent Document 2 discloses a non-woven fabric laminate formed of a water-absorbing non-woven fabric layer composed of polyolefin fibers and water-absorbing fibers and a polyolefin non-woven fabric layer obtained by at least one melt blow method or spun bond method. And excellent in strength, bacterial barrier properties, heat resistance, etc., and is described as being suitable as a medical material.

しかしながら、これらの不織布は通気性や風合いが良く使用感は良好であるが、防水性が低いために手術の際に生じる多量の体液や水分等が手術着や手術用覆布に付着した場合にはそれらが内部まで浸透するという不都合が生じる。すなわち、手術着として用いた場合は、医者等が患者から出た血液等の体液に暴露され、体液中に存在した細菌やウィルスに感染する恐れがあった。また、手術用覆布として使用した場合には、患者が患者自身の体液や手術に用いる薬品に汚染される恐れがあった。   However, these non-woven fabrics have good breathability and texture and good usability, but due to low waterproofness, a large amount of body fluids or moisture generated during surgery adheres to surgical clothes or surgical covers. Have the disadvantage that they penetrate into the interior. In other words, when used as a surgical gown, a doctor or the like may be exposed to body fluids such as blood from a patient and may be infected with bacteria or viruses present in the body fluids. Further, when used as a surgical covering, the patient may be contaminated with the patient's own body fluids and chemicals used in the operation.

また、これらの不織布は、糸くずの発生が問題になる場合がある。すなわち、手術用覆布は手術中に手術作業を行うための窓を現場で作ることがあるが、このような場合には特に糸くずの問題は大きく、手術用覆布から発生する繊維片がほぐれて発塵し、発塵物(リント)が患者の手術切開部位を汚染する恐れがある。このような観点からも、特に短繊維を用いた不織布ではこのような現象が発生し、糸くずなどの異物による手術室の環境汚染や手術切開部位の汚染が問題となっている。   Further, in these nonwoven fabrics, the generation of lint may be a problem. In other words, the surgical cover cloth sometimes creates a window for performing a surgical operation during the operation. In such a case, the problem of lint is particularly serious, and the fiber pieces generated from the surgical cover cloth are There is a risk of loosening and generating dust, which may contaminate the patient's surgical incision site. From such a point of view, such a phenomenon occurs particularly in the nonwoven fabric using short fibers, and environmental contamination of the operating room and contamination of the surgical incision site due to foreign matters such as lint are problematic.

上記のような血液等の体液や薬品による汚染を防ぐために、液体類を吸収する布状物と、液体類を透さないフィルム状物とを一体化したシートが用いられてきた。例えば、特許文献3には、エチレン−酢酸ビニル共重合ポリマーからなるフィルムとポリエチレンフィルムを含む多層フィルムと、特定の目付け量のスパンボンド不織布とを上記エチレン−酢酸ビニル共重合ポリマーフィルムが不織布側になるように熱ラミネート法で一体化された液体遮蔽性、吸液性、風合いを兼ね備えた手術用資材が開示されている。さらに、特許文献4には、少なくとも1層以上のポリオレフィン繊維と吸水性繊維からなる吸水性不織布層、ポリオレフィン系フィルム層およびメルトブロー法あるいはスパンボンド法で得られたポリオレフィン不織布層から形成される不織布積層体は、手術用資材として好適な強度、吸湿性、バクテリアバリア性、耐久性、耐熱性等に優れていることが記載されている。これらの手術用資材に用いられているスパンボンド不織布は長繊維よりなるためリントの発生は少ないが、その表面が擦られることによりスパンボンド不織布が毛羽立ち、患者の手術切開部位を汚染するという恐れがあった。   In order to prevent contamination by body fluids such as blood and chemicals as described above, a sheet in which a cloth-like material that absorbs liquids and a film-like material that does not transmit liquids has been integrated. For example, Patent Document 3 discloses that a film composed of an ethylene-vinyl acetate copolymer and a multilayer film including a polyethylene film and a spunbond nonwoven fabric having a specific basis weight are placed on the nonwoven fabric side. Thus, a surgical material having a liquid shielding property, a liquid absorbing property, and a texture integrated by a heat laminating method is disclosed. Furthermore, in Patent Document 4, a nonwoven fabric laminate formed from a water absorbent nonwoven fabric layer comprising at least one polyolefin fiber and a water absorbent fiber, a polyolefin film layer, and a polyolefin nonwoven fabric layer obtained by a melt blow method or a spun bond method. It is described that the body is excellent in strength, hygroscopicity, bacterial barrier property, durability, heat resistance and the like suitable as a surgical material. The spunbond nonwoven fabric used in these surgical materials is made of long fibers, so there is little occurrence of lint. there were.

特開平10−96156号公報JP-A-10-96156 特開2003−27360号公報JP 2003-27360 A 特開平9−117500号公報JP 9-117500 A 特開2003−39612号公報JP 2003-39612 A

本発明は以上のような問題に鑑みなされたもので、発塵や毛羽立ちテカリが少なく、テカリもなく、軽量で防水性、吸液性を兼ね備えた手術用資材を提供することを課題とする。   The present invention has been made in view of the above problems, and it is an object of the present invention to provide a surgical material that is light in weight, waterproof, liquid-absorbing, having little dust generation and fuzzing, no shine.

本発明者らは上記課題に鑑み、スパンボンド不織布は長繊維よりなるため発塵や毛羽立ちが少ないとの予測に基づいて詳細に検討を行った結果、特定の特性を有するスパンボンド不織布は発塵や毛羽立ちが著しく小さいことを見出し、本発明を完成するに到った。   In view of the above problems, the present inventors have made a detailed study based on the prediction that spunbond nonwoven fabrics are made of long fibers and therefore generate less dust and fluff. As a result, spunbond nonwoven fabrics having specific characteristics The present inventors have found that the fluffing is extremely small and completed the present invention.

すなわち、本発明は、
(1)スパンボンド不織布とポリオレフィン系フィルムを貼合してなる手術用資材において、一つの面積が0.15mm〜0.50mmである熱融着部の面積の総和が不織布全体の5%〜15%であるスパンボンド不織布を用いることを特徴とする手術用資材であり、
(2)前記スパンボンド不織布が、1〜4デニールのポリプロピレン繊維よりなることを特徴とする(1)記載の手術用資材であり、
(3)前記手術用資材の目付け量が、40〜80g/mであることを特徴とする(1)または(2)記載の手術用資材であり、
(4)前記ポリオレフィン系フィルムが、低密度ポリエチレンおよび/または直鎖状低密度ポリエチレンであることを特徴とする(1)乃至(3)のいずれかに記載の手術用資材であり、
(5)前記(1)〜(4)のいずれかの手術用資材よりなることを特徴とする手術用覆布、
である。
That is, the present invention
(1) A surgical materials consisting pasted spunbond nonwoven fabric and a polyolefin film, one area of 0.15mm 2 ~0.50mm 2 a is 5% sum of the total nonwoven fabric area of heat-sealing portion It is a surgical material characterized by using a spunbonded nonwoven fabric of ~ 15%,
(2) The spunbond nonwoven fabric is a surgical material according to (1), characterized in that the spunbond nonwoven fabric is made of 1 to 4 denier polypropylene fibers.
(3) The surgical material according to (1) or (2), wherein the basis weight of the surgical material is 40 to 80 g / m 2 ,
(4) The polyolefin material is a surgical material according to any one of (1) to (3), wherein the polyolefin film is low-density polyethylene and / or linear low-density polyethylene,
(5) A surgical covering comprising the surgical material according to any one of (1) to (4),
It is.

本発明の手術用資材は、特定のスパンボンド不織布とポリオレフィン系フィルムとを貼合しているため擦ってもリントや毛羽立ちが非常に少なく、防水性にも優れる。また、本発明の手術用資材は軽量化、薄膜化が容易であるため、医療機関での医療廃棄物の廃棄コスト低減や保管場所の減容化を図ることができる。   The surgical material of the present invention is bonded with a specific spunbond nonwoven fabric and a polyolefin-based film, and therefore has very little lint and fluff even when rubbed, and is excellent in waterproofness. Further, since the surgical material of the present invention can be easily reduced in weight and thinned, it is possible to reduce the cost of disposal of medical waste in medical institutions and the volume of storage space.

ポリオレフィン系フィルムの両面に特定のスパンボンド不織布を貼合した本発明の手術用資材の層構成を示した概念的側面図である。It is the conceptual side view which showed the layer structure of the surgical material of this invention which bonded the specific spun bond nonwoven fabric on both surfaces of the polyolefin-type film. ポリオレフィン系フィルムの片面に特定のスパンボンド不織布を貼合した本発明の手術用資材の層構成を示した概念的側面図である。It is the conceptual side view which showed the layer structure of the surgical material of this invention which bonded the specific spun bond nonwoven fabric to the single side | surface of a polyolefin-type film. 本発明に用いられるスパンボンド不織布の熱融着部の一態様を示す概念的平面図である。It is a notional top view showing one mode of the heat fusion part of the spunbonded nonwoven fabric used for the present invention. 本発明に用いられるスパンボンド不織布の熱融着部の他の態様を示す概念的平面図である。It is a conceptual top view which shows the other aspect of the heat-fusion part of the spun bond nonwoven fabric used for this invention.

本発明の手術用資材は、ポリオレフィン系フィルムの片面もしくは両面に、一つの面積が0.15mm〜0.50mmである熱融着部の面積の総和が不織布全体の5%〜15%であるスパンボンド不織布を貼合することにより得られる。以下本発明を詳細に説明する。 Surgical materials of the present invention, on one or both surfaces of the polyolefin film, the total sum of the areas of the heat-sealed portion, one of the area is 0.15mm 2 ~0.50mm 2 is 5% to 15% of the total nonwoven fabric It is obtained by pasting a certain spunbond nonwoven fabric. The present invention will be described in detail below.

本発明のポリオレフィン系フィルムに用いられるポリオレフィン系樹脂としては、ポリプロピレン、エチレン−プロピレンコポリマー、エチレン−プロピレンブロックコポリマー、変性ポリプロピレン等のポリプロピレン系樹脂、超低密度ポリエチレン、低密度ポリエチレン、エチレンと炭素数4〜18の少なくとも一種のα−オレフィンとの共重合体である直鎖状低密度ポリエチレン、高密度ポリエチレン、エチレン−酢酸ビニル共重合体、エチレンとアクリル酸又はメタクリル酸等との共重合体などのポリエチレン系樹脂が挙げられるが、これらの中でも特に低密度ポリエチレン、直鎖状低密度ポリエチレンが好ましい。更には、密度が0.910g/cm乃至0.930g/cmの低密度ポリエチレン及び直鎖状低密度ポリエチレンは、低温で溶融押出しできるので好ましい。また、ドレープ性(垂れ下がり性)を付与したい場合は、密度が0.880g/cm乃至0.910g/cmの超低密度ポリエチレンやポリオレフィン系エラストマーを配合するのが好ましい。 Examples of the polyolefin resin used in the polyolefin film of the present invention include polypropylene resins such as polypropylene, ethylene-propylene copolymer, ethylene-propylene block copolymer, and modified polypropylene, ultra low density polyethylene, low density polyethylene, ethylene and 4 carbon atoms. A linear low-density polyethylene, a high-density polyethylene, an ethylene-vinyl acetate copolymer, a copolymer of ethylene and acrylic acid, methacrylic acid, or the like, which is a copolymer with at least one α-olefin of -18. Although polyethylene-type resin is mentioned, Low density polyethylene and linear low density polyethylene are especially preferable among these. Furthermore, low density polyethylene and linear low density polyethylene having a density of 0.910 g / cm 3 to 0.930 g / cm 3 are preferable because they can be melt-extruded at a low temperature. In addition, when it is desired to impart drapeability (sagging property), it is preferable to blend ultra-low density polyethylene or polyolefin-based elastomer having a density of 0.880 g / cm 3 to 0.910 g / cm 3 .

本発明に用いられるスパンボンド不織布を形成する熱可塑性樹脂としては、ナイロン6、ナイロン66、ナイロン12等のポリアミド系樹脂、ポリエチレン、ポリプロピレン、ポリブテン等のオレフィン系重合体、及びこれらの共重合体を主成分とするポリオレフィン系樹脂、ポリエチレンテレフタレート、ポリブチレンテレフタレート等のポリエステル系樹脂、アクリル系樹脂等が挙げられる。本発明のスパンボンド不織布を構成する繊維は単一成分でも混合成分でも良いが、特にポリオレフィン系フィルムとの熱融着性やコストなどの観点からポリプロピレン繊維が好ましい。   Examples of the thermoplastic resin forming the spunbond nonwoven fabric used in the present invention include polyamide resins such as nylon 6, nylon 66 and nylon 12, olefin polymers such as polyethylene, polypropylene and polybutene, and copolymers thereof. Examples thereof include polyolefin resins having a main component, polyester resins such as polyethylene terephthalate and polybutylene terephthalate, and acrylic resins. The fiber constituting the spunbonded nonwoven fabric of the present invention may be a single component or a mixed component, but polypropylene fiber is particularly preferable from the viewpoints of heat fusion with a polyolefin film and cost.

スパンボンド不織布は、前記熱可塑性樹脂を押出機で溶融し、紡糸口金の細孔から連続的に糸状に押出し、移動するベルト上で重ねてウェブを作り、高温状態のウェブの繊維同士を、所定形状の凹凸が形成された彫刻ロールで熱圧着し融着させて製造される。高温状態のウェブの繊維同士を熱圧着する際には、彫刻ロールの表面温度は前記熱可塑性樹脂の融点に近い温度に設定されているのが好ましい。このようにして製造されたスパンボンド不織布は、例えば図3または図4に示すような模様の熱融着部が形成され、繊維が連続した長繊維なので強度が大きく、寸法安定性に富み、裁断しても端部が解れ難いといった特徴がある。   The spunbond nonwoven fabric is obtained by melting the thermoplastic resin with an extruder, continuously extruding it from the pores of the spinneret into a thread shape, making a web by overlapping on a moving belt, and predetermining high-temperature web fibers to each other. It is manufactured by thermocompression-bonding and fusing with a sculpture roll formed with uneven shapes. When the high-temperature web fibers are thermocompression bonded, the surface temperature of the engraving roll is preferably set to a temperature close to the melting point of the thermoplastic resin. The spunbonded nonwoven fabric produced in this way is formed with a heat-sealed part having a pattern as shown in FIG. 3 or FIG. 4, for example, and has a high strength because it is a continuous continuous fiber. Even so, the end is difficult to unravel.

本発明は、上記スパンボンド不織布の中でも、一つの面積が0.15mm〜0.50mmである熱融着部(以下、所定面積の熱融着部と略記する)の面積の総和が不織布全体の5%〜15%であるスパンボンド不織布が用いられる。さらには、所定面積の熱融着部の面積の総和が6%〜13%であるスパンボンド不織布がより好ましい。所定面積の熱融着部の面積の総和が5%未満の場合は、摩擦により毛羽立ちやリントが発生し、発生したリントが術部を汚染するなどの問題が発生するので好ましくない。一方、所定面積の熱融着部の面積の総和が15%を超えるスパンボンド不織布を用いた場合は、摩擦による毛羽立ちやリントが少ないもののテカリが大きく、手術用覆布として用いた場合、照明の光を手術用資材が反射し、医者や看護士が眩さを感じ目が疲れるため好ましくない。 The present invention is the among the spunbonded nonwoven fabric, thermal fusion portion one area is 0.15mm 2 ~0.50mm 2 (hereinafter, abbreviated as thermal fusion of the predetermined area) total area of the nonwoven fabric A spunbonded nonwoven fabric that is 5% to 15% of the total is used. Furthermore, a spunbonded nonwoven fabric in which the total area of the heat-sealed portions having a predetermined area is 6% to 13% is more preferable. When the total area of the heat-sealed portions having a predetermined area is less than 5%, fuzzing or lint is generated due to friction, and the generated lint causes problems such as contamination of the surgical site. On the other hand, when a spunbonded nonwoven fabric with a total area of heat-bonded portions of a predetermined area exceeding 15% is used, there is little fuzz or lint due to friction, but the shine is large, and when used as a surgical covering, Surgical material reflects light, and doctors and nurses are dazzled and eyes are tired.

さらには、全熱融着部の面積の総和がスパンボンド不織布全体の5%〜15%であるスパンボンド不織布は摩擦による毛羽立ちやリントの発生が著しく少なく、テカリがないので特に好ましい。本発明に用いられるスパンボンド不織布は、本発明の課題が解決される範囲内において、一つの面積が0.15mm未満の熱融着部や0.50mmを超える熱融着部が存在しても良い。なお、熱融着部の形状は、正方形、長方形、ひし形、平行四辺形、円、楕円などのいずれの形状でも良い。また、熱融着部一つの面積および不織布全体に占める所定面積の熱融着部の面積の総和は、スパンボンド不織布の表面をマイクロスコープで観察することにより求めることができる。 Furthermore, a spunbond nonwoven fabric in which the total area of all the heat-bonded portions is 5% to 15% of the entire spunbond nonwoven fabric is particularly preferable because fuzz and lint due to friction are extremely small and there is no shine. Spunbonded nonwoven fabric used in the present invention, to the extent that the object of the present invention is resolved thermal fusion portion is present in which one area is greater than heat Chakubu and 0.50 mm 2 of less than 0.15 mm 2 May be. The shape of the heat fusion part may be any shape such as a square, a rectangle, a rhombus, a parallelogram, a circle, and an ellipse. Moreover, the sum total of the area of one heat-fusion part and the area of the heat-fusion part of the predetermined area which occupies for the whole nonwoven fabric can be calculated | required by observing the surface of a spunbond nonwoven fabric with a microscope.

本発明に用いられるスパンボンド不織布の繊維の太さは、1〜4デニールが好ましい。スパンボンド不織布の繊維の太さが1デニール未満の場合は、摩擦により繊維が切断されやすく、リントの原因となる恐れがある。一方、4デニールを超えると、繊維の太さが太いため、手術用資材の風合いが悪くなる。   The fiber thickness of the spunbonded nonwoven fabric used in the present invention is preferably 1 to 4 denier. When the fiber thickness of the spunbonded nonwoven fabric is less than 1 denier, the fiber is easily cut by friction, which may cause lint. On the other hand, if it exceeds 4 deniers, the thickness of the fibers is so thick that the texture of the surgical material becomes poor.

本発明に用いられる特定のスパンボンド不織布の目付け量(単位面積当りの重量)は10〜30g/mが好ましい。スパンボンド不織布の目付け量が30g/mを超えると、得られた手術用資材の重量が重くなり、逆にスパンボンド不織布の目付け量が10g/m未満であると、吸液性が充分でない。また、ポリオレフィン系フィルムの目付け量は15g/m〜30g/mが好ましい。ポリオレフィン系フィルムは防水性(耐水圧)を付与するために必要であり、その目付け量が15g/m未満の場合は、防水性が低下する恐れがある。上記のスパンボンド不織布とポリオレフィン系フィルムよりなる本発明の手術用資材の目付け量は、40g/m〜80g/m、さらには50g/m〜70g/mが好ましい。本発明の手術用資材の目付け量が40g/m未満の場合は、吸液性が充分でなく、目付け量が80g/mを超えると手術用資材が重くなり、廃棄コストが高くなる、広い保管場所が必要になるなどの問題が生じる。 The basis weight (weight per unit area) of the specific spunbond nonwoven fabric used in the present invention is preferably 10 to 30 g / m 2 . If the basis weight of the spunbond nonwoven fabric exceeds 30 g / m 2 , the weight of the obtained surgical material becomes heavy, and conversely, if the basis weight of the spunbond nonwoven fabric is less than 10 g / m 2 , the liquid absorbency is sufficient Not. Also, the basis weight of the polyolefin film is preferably 15g / m 2 ~30g / m 2 . The polyolefin-based film is necessary for imparting waterproofness (water pressure resistance). If the basis weight is less than 15 g / m 2 , the waterproof property may be lowered. Basis weight of the surgical material of the spunbond nonwoven fabric and the present invention consisting of a polyolefin film, 40g / m 2 ~80g / m 2, more 50g / m 2 ~70g / m 2 is preferred. When the basis weight of the surgical material of the present invention is less than 40 g / m 2 , the liquid absorbency is not sufficient, and when the basis weight exceeds 80 g / m 2 , the surgical material becomes heavy, and the disposal cost increases. Problems such as the need for a large storage area arise.

本発明の手術用資材は血液等の色を目立ち難くするために着色するのが望ましく、ポリオレフィン系樹脂へ任意の着色剤を配合することができる。具体的には、血液等が付着しても目立ちにくい、すなわちグリーン系、ブルー系に着色するのが好ましい。さらに、ポリオレフィン系樹脂には、必要に応じて酸化防止剤、安定剤、抗菌剤、滑剤、アンチブロッキング剤、帯電防止剤などを添加することができる。   The surgical material of the present invention is desirably colored in order to make the color of blood or the like less noticeable, and an arbitrary colorant can be blended into the polyolefin resin. Specifically, it is preferable that the blood is not noticeable even when blood or the like adheres, that is, it is colored green or blue. Furthermore, an antioxidant, a stabilizer, an antibacterial agent, a lubricant, an antiblocking agent, an antistatic agent, and the like can be added to the polyolefin resin as necessary.

以下に、本発明の手術用資材の製造方法について述べる。
本発明の手術用資材は、ポリオレフィン系樹脂を押出機に供給し、ポリオレフィン系フィルムを成形した後、ホットメルト系接着剤を用いてその片面またはその両面に特定のスパンボンド不織布を貼合する方法、フラットダイを装着した押出機にポリオレフィン系樹脂を供給してフィルム状に溶融成形し、溶融状態にあるフィルム状物の片面またはその両面に特定のスパンボンド不織布を積層し、溶融状態にあるフィルム状物と共にチルロールとゴムロールとで圧着貼合する押出しラミネート法で貼合する方法、ポリオレフィン系樹脂を押出機に供給して成形したポリオレフィン系フィルムと特定のスパンボンド不織布とを熱ラミネート法で貼合する方法などが挙げられる。
Below, the manufacturing method of the surgical material of this invention is described.
The surgical material of the present invention is a method in which a polyolefin resin is supplied to an extruder, a polyolefin film is formed, and then a specific spunbond nonwoven fabric is bonded to one side or both sides thereof using a hot melt adhesive. A polyolefin resin is supplied to an extruder equipped with a flat die, melt-formed into a film, and a specific spunbond nonwoven fabric is laminated on one side or both sides of the film-like material in a molten state, and the film is in a molten state Bonding by extrusion laminating method in which chill roll and rubber roll are pressed and bonded together with the shape, polyolefin film formed by supplying polyolefin resin to extruder and laminating specific spunbond nonwoven fabric by thermal laminating method The method of doing is mentioned.

本発明の手術用資材の製造方法には上記のような方法があるが、中でもフラットダイを装着した押出機にポリオレフィン系樹脂を供給してフィルム状に溶融成形し、溶融状態にあるフィルム状物の片面またはその両面に特定のスパンボンド不織布を積層し、溶融状態にあるフィルム状物と共にチルロールとゴムロールとで圧着貼合する押出しラミネート法が好ましい。この方法により得られる手術用資材は、ポリオレフィン系フィルムと特定のスパンボンド不織布との密着性が良好で、摩擦による毛羽立ちやリントの発生が非常に少ない。   The method for producing a surgical material according to the present invention includes the above-mentioned methods. Among them, a polyolefin resin is supplied to an extruder equipped with a flat die and melt-molded into a film to obtain a film-like product in a molten state. An extrusion laminating method in which a specific spunbond nonwoven fabric is laminated on one side or both sides thereof and is bonded by pressure bonding with a chill roll and a rubber roll together with a film-like material in a molten state is preferable. The surgical material obtained by this method has good adhesion between the polyolefin-based film and the specific spunbonded nonwoven fabric, and generation of fuzz and lint due to friction is very small.

ホットメルト接着剤を用いてポリオレフィン系フィルムと特定のスパンボンド不織布とを貼合する場合、ポリオレフィン系フィルムの全面にホットメルト系接着剤を塗工し貼合すると、得られた手術用資材の目付け量が大きくなり、またドレープ性が低下するのでホットメルト系接着剤をスプレーカーテン法、ストライプ法で塗布することが行われている。しかしながら、これらの方法で得られた手術用資材は、ポリオレフィン系フィルムとスパンボンド不織布との間にホットメルト系接着剤が介在しない部分があり、手術用資材を切断すると、ホットメルト系接着剤が介在しない部分はポリオレフィン系フィルムとスパンボンド不織布との間で剥離が生じる恐れがある。   When pasting a polyolefin film and a specific spunbond nonwoven fabric using a hot melt adhesive, applying the hot melt adhesive to the entire surface of the polyolefin film and pasting it together results in the basis of the resulting surgical material Since the amount is increased and the drapeability is lowered, a hot melt adhesive is applied by a spray curtain method or a stripe method. However, the surgical materials obtained by these methods have a portion in which no hot melt adhesive is interposed between the polyolefin film and the spunbond nonwoven fabric, and when the surgical material is cut, the hot melt adhesive is removed. The part which does not interpose may cause peeling between the polyolefin-based film and the spunbonded nonwoven fabric.

一方、ポリオレフィン系フィルムとスパンボンド不織布とを熱ラミネート法で貼合する方法で得られた手術用資材は、ポリエチレン系フィルムとスパンボンド不織布との密着力が小さくなる恐れがある。   On the other hand, the surgical material obtained by the method of laminating a polyolefin-based film and a spunbonded nonwoven fabric by a heat laminating method may reduce the adhesion between the polyethylene-based film and the spunbonded nonwoven fabric.

なお、溶融状態にあるシート状物の片面にのみ特定のスパンボンド不織布を貼合して得られた手術用資材は、手術着として用いる場合はスパンボンド不織布を貼合した面が外側に、手術用覆布として用いる場合はスパンボンド不織布を貼合した面が外側になるようにして用いると、患者から出た血液等の体液や薬品などの液体類を不織布層が吸収するので好ましい。   In addition, the surgical material obtained by pasting a specific spunbond nonwoven fabric only on one side of the sheet-like material in a melted state, when used as a surgical gown, the surface on which the spunbond nonwoven fabric is pasted, When used as a covering cloth, it is preferable that the surface bonded with the spunbond nonwoven fabric is on the outside because the nonwoven fabric layer absorbs body fluids such as blood and liquids such as medicines from the patient.

このようにして得られた手術用資材は、所定サイズに切断後、カテーテル留め付け治具、血液・廃液・体液・洗浄水等の受け袋、術野開窓部、その裏面の両面テープ(患者身体と貼合のため)などを設けることにより、手術用覆布とすることができる。   The surgical material thus obtained is cut into a predetermined size, then a catheter fastening jig, a receiving bag for blood, waste liquid, body fluid, washing water, etc., a surgical field fenestration part, a double-sided tape on the back (patient It can be used as a surgical covering by providing a body and the like).

以下に、本発明を実施例により更に詳細に説明する。なお、物性の評価は次の方法で行った。   Hereinafter, the present invention will be described in more detail with reference to examples. The physical properties were evaluated by the following method.

(1)耐水圧(防水性)
耐水圧は、JIS L 1092(2009年版) A法により、試験片の裏面の3ケ所から水が出た時の水位を測定することにより求めた。
(1) Water pressure resistance (waterproof)
The water pressure resistance was determined by measuring the water level when water came out from three locations on the back of the test piece according to JIS L 1092 (2009 edition) A method.

(2)吸水試験(吸水能)
吸水能は、手術用資材の不織布面に1gの水を滴下し、1gの水が手術用資材に吸収されるまでの時間を測定して評価した。
(2) Water absorption test (water absorption capacity)
The water absorption capacity was evaluated by dropping 1 g of water onto the nonwoven fabric surface of the surgical material and measuring the time until 1 g of water was absorbed by the surgical material.

(3)光沢度
光沢度は、JIS K 7105(1981年版)に準じて測定した。すなわち、光沢度測定装置を用い、標準光源からの光を試料表面へ入射角60度で当て、試料表面で反射した光を受光器で測定して求めた。
(3) Glossiness The glossiness was measured according to JIS K 7105 (1981 edition). That is, using a glossiness measuring device, light from a standard light source was applied to the sample surface at an incident angle of 60 degrees, and the light reflected from the sample surface was measured with a light receiver.

(4)テープ剥離試験
試料表面に粘着テープを貼り、上から手で5回擦った後、テープをゆっくり剥がし、粘着面に残った繊維の状態を観察し、不織布の繊維がほとんど残っていないものを◎、僅かに残っているものを○、少し残っているものを△、全面に残っているものを×とした。
(4) Tape peeling test Adhesive tape is applied to the sample surface and rubbed by hand 5 times, then the tape is slowly peeled off, and the state of the fibers remaining on the adhesive surface is observed. ◎, a little left, △, a little left, and x left.

(5)磨耗試験(毛羽立ち、磨耗量)
磨耗強さは、JIS L 1096(1999年版)のC法に準じて測定した。すなわち、直径130mmの円形に切り抜いた試料を磨耗試験機にセットし、磨耗輪CS−10(加重2.45N×2個)を回転速度70rpmで50回転させた前後の試料の重量減少量を磨耗量とした。毛羽立ちは不織布の繊維がほとんど毛羽立っていないものを◎、僅かに毛羽立っているものを○、明らかに毛羽立っているものを△、繊維が切断しているものを×とした。
(5) Wear test (fluffing, wear amount)
The abrasion strength was measured according to the method C of JIS L 1096 (1999 edition). That is, a sample cut into a circle with a diameter of 130 mm is set in an abrasion tester, and the weight reduction amount of the sample before and after the wear wheel CS-10 (weight 2.45N × 2 pieces) is rotated 50 times at a rotation speed of 70 rpm is worn. The amount. As for fluffing, ◎ indicates that the non-woven fiber is hardly fluffed, ◯ indicates that the fiber is slightly fluffed, Δ indicates that the fiber is clearly fluffed, and x indicates that the fiber is cut.

[実施例1]
直鎖状低密度ポリエチレン(密度:0.920g/cm、MFR:6g/10分)90重量%と低密度ポリエチレン(密度:0.919g/cm、MFR:7g/10分)10重量%とからなるポリオレフィン系樹脂100重量部を、フラットダイを備えた押出し機へ供給し、目付け量25g/mでフィルム状に溶融押出しした。次いで、溶融状態にあるフィルム状物の両面に表1に示すスパンボンド不織布A(一つの面積が0.17mmの熱融着部のみよりなり、所定面積の熱融着部(一つの面積が0.15mm〜0.50mmである熱融着部)の面積の総和は不織布全体の8.3%)を積層し、チルロールとゴムロールとで挟んで圧着貼合することにより、目付け量65g/mの本発明の手術用資材を得た。得られた手術用資材の特性を表1に示す。
[Example 1]
90% by weight of linear low density polyethylene (density: 0.920 g / cm 3 , MFR: 6 g / 10 min) and 10% by weight of low density polyethylene (density: 0.919 g / cm 3 , MFR: 7 g / 10 min) 100 parts by weight of a polyolefin-based resin consisting of the above was supplied to an extruder equipped with a flat die and melt-extruded into a film with a basis weight of 25 g / m 2 . Next, the spunbonded nonwoven fabric A shown in Table 1 (one area is 0.17 mm 2 ) is formed on both sides of the film-like material in a molten state, and a predetermined area of the heat-sealed portion (one area is total area of which is heat-sealed portion) is 0.15mm 2 ~0.50mm 2 is laminated 8.3%) of the total nonwoven fabric, by crimping laminated by being sandwiched between the chill roll and a rubber roll, basis weight 65g The surgical material of the present invention of / m 2 was obtained. Table 1 shows the characteristics of the obtained surgical material.

[比較例1]
パルプとポリエチレンテレフタレート(PET)繊維よりなる二層のスパンレース不織布を手術用資材とした。得られた手術用資材の特性を表1に併せて示す。
[Comparative Example 1]
A two-layer spunlace nonwoven fabric made of pulp and polyethylene terephthalate (PET) fibers was used as a surgical material. Table 1 shows the characteristics of the obtained surgical material.

[比較例2]
直鎖状低密度ポリエチレン(密度:0.920g/cm、MFR:6g/10分)90重量%と低密度ポリエチレン(密度:0.919g/cm、MFR:7g/10分)10重量%とからなるポリオレフィン系樹脂100重量部よりなる目付け量25g/mのポリエチレンフィルムの両面へスプレーカーテン法にてホットメルト接着剤を塗布し、その両面へ表1に示すスパンボンド不織布B(一つの面積が0.50mmの熱融着部のみよりなり、所定面積の熱融着部の面積の総和は不織布全体の22%)を貼合することにより、目付け量70g/mの手術用資材を得た。得られた手術用資材の特性を表1に併せて示す。
[Comparative Example 2]
90% by weight of linear low density polyethylene (density: 0.920 g / cm 3 , MFR: 6 g / 10 min) and 10% by weight of low density polyethylene (density: 0.919 g / cm 3 , MFR: 7 g / 10 min) A hot melt adhesive was applied to both sides of a polyethylene film having a basis weight of 25 g / m 2 consisting of 100 parts by weight of a polyolefin-based resin consisting of Surgical material with a weight per unit area of 70 g / m 2 by laminating only the heat-bonded part with an area of 0.50 mm 2 and the total area of the heat-bonded part with a predetermined area is 22% of the whole nonwoven fabric) Got. Table 1 shows the characteristics of the obtained surgical material.

[比較例3、4]
不織布として表1に示すスパンボンド不織布C(一つの面積が0.53mmの熱融着部のみよりなるため所定面積の熱融着部はなく、全熱融着部の面積の総和は不織布全体の18%)またはD(一つの面積が0.14mmの熱融着部のみよりなるため所定面積の熱融着部はなく、全熱融着部の面積の総和は不織布全体の6.2%)を用いた以外は実施例1と同様にして、目付け量70g/mの手術用資材を得た。得られた手術用資材の特性を表1に併せて示す。
[Comparative Examples 3 and 4]
Spunbond non-woven fabric C shown in Table 1 as a non-woven fabric (there is only a heat-bonded portion having an area of 0.53 mm 2 , so there is no heat-bonded portion of a predetermined area, and the total area of all heat-bonded portions is the entire nonwoven fabric. 18%) or D (one area is only 0.14 mm 2 , so there is no heat fusion part of a predetermined area, and the total area of all the heat fusion parts is 6.2 of the whole nonwoven fabric) %) Was used in the same manner as in Example 1 to obtain a surgical material with a basis weight of 70 g / m 2 . Table 1 shows the characteristics of the obtained surgical material.

Figure 2012223379
Figure 2012223379

表1より明らかなように、比較例1は短繊維のパルプとPETとのスパンレース不織布のみを用いているため耐水圧が低く、磨耗試験における重量減少が10mg以上あり、発塵しやすいという欠点がある。比較例2で用いたスパンボンド不織布は、所定面積の熱融着部(一つの面積が0.15mm〜0.50mmである熱融着部)の面積の総和が不織布全体の22%もあるため、得られた手術用資材は光沢度が大きくテカリがあり、手術を行う医師や看護士の目が疲れるという欠点がある。比較例3で用いたスパンボンド不織布は、面積が大きい熱融着部のみよりなるため、得られた手術用資材は光沢度が大きくテカリがある。さらに、比較例4は、所定面積の熱融着部(一つの面積が0.15mm〜0.50mmである熱融着部)はなく、一つの熱融着部の面積が小さいため、テープ剥離試験で粘着テープへ付着した繊維が多く、表面を擦ると毛羽立ちが多い。それに対し、実施例1は、所定面積の熱融着部の面積の総和が不織布全体の8.3%であるスパンボンド不織布とポリオレフィン系フィルムとを貼合しているため、得られた手術用資材は耐水圧が500mm以上あり、光沢度が小さくてテカリがなく、磨耗試験における重量減少が5mg以下と発塵が少なく、毛羽立ち、テープ剥離試験におけるテープへ付着した繊維量が共に少なく、手術用資材として好適であった。
As is clear from Table 1, Comparative Example 1 uses only a spunlace nonwoven fabric of short fiber pulp and PET, so the water pressure is low, the weight loss in the abrasion test is 10 mg or more, and it is easy to generate dust. There is. Spunbonded nonwoven fabric used in Comparative Example 2, even 22% the total area of the entire nonwoven fabric heat-sealed portion having a predetermined area (heat fusion unit one area is 0.15mm 2 ~0.50mm 2) For this reason, the obtained surgical material has a high glossiness and shine, and has the disadvantage that eyes of doctors and nurses performing the operation are tired. Since the spunbonded nonwoven fabric used in Comparative Example 3 is composed only of a heat-sealed portion having a large area, the obtained surgical material has a large gloss and a high gloss. Furthermore, since Comparative Example 4, thermal fusion bonding portion (heat-sealed portion is one area which is 0.15mm 2 ~0.50mm 2) having a predetermined area is not, the small area of one heat-sealed portion, In the tape peeling test, there are many fibers adhering to the adhesive tape, and there is much fuzz when the surface is rubbed. On the other hand, in Example 1, since the spunbond nonwoven fabric and the polyolefin-based film in which the total area of the heat-sealed portion having a predetermined area is 8.3% of the whole nonwoven fabric are bonded, the obtained surgical use The material has a water pressure resistance of 500 mm or more, low gloss, no shine, less weight loss in the abrasion test of 5 mg or less, less dust generation, fluffing, and less fiber attached to the tape in the tape peeling test. It was suitable as a material.

本発明の手術用資材および覆布は、手術用資材に要求される発塵や毛羽立ちが少なく、テカリがなく、軽量で防水性、吸液性、良好な風合いを兼ね備えているため、医療現場における手術を行う際に患者を覆う手術用覆布や医者や看護士が着用する手術用の布帛資材として好適に用いることができる。   The surgical material and covering cloth of the present invention have low dust generation and fuzz required for surgical materials, no shine, light weight, waterproofness, liquid absorption, and a good texture. It can be suitably used as a surgical covering that covers a patient when performing surgery, or a fabric material for surgery worn by doctors and nurses.

10、20:手術用資材
11、21:スパンボンド不織布
12、22:ポリオレフィン系フィルム
31、41:スパンボンド不織布の熱融着部
32、42:スパンボンド不織布の非融着部
DESCRIPTION OF SYMBOLS 10, 20: Surgical material 11, 21: Spunbond nonwoven fabric 12, 22: Polyolefin film 31, 41: Thermal fusion part of a spunbond nonwoven fabric 32, 42: Non-fusion part of a spunbond nonwoven fabric

Claims (5)

スパンボンド不織布とポリオレフィン系フィルムを貼合してなる手術用資材において、一つの面積が0.15mm〜0.50mmである熱融着部の面積の総和が不織布全体の5%〜15%であるスパンボンド不織布を用いることを特徴とする手術用資材。 A surgical materials consisting pasted spunbond nonwoven fabric and a polyolefin film, 5% sum of the total nonwoven fabric area of heat-sealing portion one area is 0.15mm 2 ~0.50mm 2 ~15% A surgical material characterized by using a spunbonded nonwoven fabric. 前記スパンボンド不織布が、1〜4デニールのポリプロピレン繊維よりなることを特徴とする請求項1記載の手術用資材。   The surgical material according to claim 1, wherein the spunbond nonwoven fabric is made of 1 to 4 denier polypropylene fibers. 前記手術用資材の目付け量が、40〜80g/mであることを特徴とする請求項1または2記載の手術用資材。 The basis weight of the surgical material is surgical material of claim 1, wherein it is a 40 and 80 g / m 2. 前記ポリオレフィン系フィルムが、低密度ポリエチレンおよび/または直鎖状低密度ポリエチレンであることを特徴とする請求項1乃至3のいずれかに記載の手術用資材。   The surgical material according to any one of claims 1 to 3, wherein the polyolefin film is low-density polyethylene and / or linear low-density polyethylene. 請求項1乃至4記載のいずれかの手術用資材よりなることを特徴とする手術用覆布。
A surgical covering made of the surgical material according to any one of claims 1 to 4.
JP2011093798A 2011-04-20 2011-04-20 Surgical material and drape Pending JP2012223379A (en)

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KR101910314B1 (en) 2016-05-04 2018-10-19 오앤엠 할리야드 인터내셔널 언리미티드 컴퍼니 Disposable surgical gown

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Publication number Priority date Publication date Assignee Title
JPH0366366A (en) * 1989-08-05 1991-03-22 Uni Charm Corp Throw-away gown for surgical operation
JP2000062060A (en) * 1998-08-14 2000-02-29 Idemitsu Petrochem Co Ltd Medical covering material
JP2001146674A (en) * 1999-09-07 2001-05-29 Chisso Corp Spunbonded nonwoven fabric, method for producing the same and absorptive article using the same
JP2001508370A (en) * 1996-12-27 2001-06-26 キンバリー クラーク ワールドワイド インコーポレイテッド Improved cloth-like liquid-impermeable breathable composite barrier fabric
JP2007536125A (en) * 2004-05-07 2007-12-13 パウル ハルトマン アクチェンゲゼルシャフト Nonwoven fabric / film laminate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0366366A (en) * 1989-08-05 1991-03-22 Uni Charm Corp Throw-away gown for surgical operation
JP2001508370A (en) * 1996-12-27 2001-06-26 キンバリー クラーク ワールドワイド インコーポレイテッド Improved cloth-like liquid-impermeable breathable composite barrier fabric
JP2000062060A (en) * 1998-08-14 2000-02-29 Idemitsu Petrochem Co Ltd Medical covering material
JP2001146674A (en) * 1999-09-07 2001-05-29 Chisso Corp Spunbonded nonwoven fabric, method for producing the same and absorptive article using the same
JP2007536125A (en) * 2004-05-07 2007-12-13 パウル ハルトマン アクチェンゲゼルシャフト Nonwoven fabric / film laminate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101910314B1 (en) 2016-05-04 2018-10-19 오앤엠 할리야드 인터내셔널 언리미티드 컴퍼니 Disposable surgical gown

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