WO2001003914A1 - Composite sheet - Google Patents

Composite sheet Download PDF

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Publication number
WO2001003914A1
WO2001003914A1 PCT/JP2000/004663 JP0004663W WO0103914A1 WO 2001003914 A1 WO2001003914 A1 WO 2001003914A1 JP 0004663 W JP0004663 W JP 0004663W WO 0103914 A1 WO0103914 A1 WO 0103914A1
Authority
WO
WIPO (PCT)
Prior art keywords
composite sheet
film
ventilation pipe
nonwoven fabric
sheet according
Prior art date
Application number
PCT/JP2000/004663
Other languages
French (fr)
Japanese (ja)
Inventor
Michiyo Matsushita
Original Assignee
Uni-Charm Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Uni-Charm Co., Ltd. filed Critical Uni-Charm Co., Ltd.
Priority to AU60140/00A priority Critical patent/AU6014000A/en
Publication of WO2001003914A1 publication Critical patent/WO2001003914A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/10—Impermeable to liquids, e.g. waterproof; Liquid-repellent
    • A41D31/102—Waterproof and breathable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B32B3/20—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side of hollow pieces, e.g. tubes; of pieces with channels or cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/026—Porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/20—Fibres of continuous length in the form of a non-woven mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2437/00—Clothing

Definitions

  • the present invention relates to a composite sheet suitable for use in disposable wearing articles such as disposable work clothes, disposable surgical gowns, disposable pants, disposable diapers, and the like. Background art
  • a composite sheet made by laminating a nonwoven fabric made of thermoplastic synthetic fiber and a gas-impermeable, liquid-impermeable film made of thermoplastic synthetic resin has a barrier performance that prevents the passage of liquids. Used in disposable gloves and disposable diapers. In such a composite sheet, the permeation of liquids such as body fluids is prevented by the film, and the unique feel of the film can be changed to a cloth-like one by the nonwoven fabric.
  • an object of the present invention is to make it possible to achieve both high ventilation performance and high barrier performance against liquid permeation in a composite sheet comprising a nonwoven fabric and a film used for disposable wearing articles.
  • Disclosure of the invention includes a nonwoven fabric made of a thermoplastic synthetic fiber and a film made of a thermoplastic synthetic resin, and is used as a surface material of a disposable wearing article.
  • the present invention is characterized in that the film has an upper surface, a lower surface, and a large number of openings penetrating between the upper and lower surfaces, and the opening is formed on the lower surface.
  • a vent pipe extending downward from the peripheral edge of the film the nonwoven fabric comprising: a first nonwoven fabric covering an upper surface side of the film; and a second nonwoven fabric covering a lower surface side of the film.
  • the film and the first and second nonwoven fabrics are intermittently joined over the entire surface of the composite sheet.
  • the inside diameter of the ventilation pipe is in the range of 0.1 to 6 mm.
  • the inner diameter of the ventilation pipe gradually increases in the direction from the upper surface to the lower surface.
  • Figure 1 is a front view of the gown.
  • Figure 2 is a cross-sectional view of the composite sheet.
  • Figure 3 is an exploded perspective view of the composite sheet.
  • FIG. 1 is a front view of a disposable surgical gown 1.
  • This type of gown is known, and is disclosed in, for example, Japanese Patent Application Laid-Open No. 6-230701.
  • the gown 1 has a front body 2, a back body 3, and a pair of sleeves 4.
  • the sheet material used for these parts has a barrier function that prevents the passage of liquid such as blood so that the liquid does not penetrate into the gown 1 during surgery, etc.
  • the seat material used may be emphasized on the barrier performance or ventilation performance depending on the part of the gown 1. I do. Figs.
  • FIGS. 2 and 3 are cross-sectional views in the thickness direction of a composite sheet 10 according to the present invention suitable for use in disposable wearing articles such as gowns 1, and the composite sheet 10 is disassembled in the thickness direction. It is a perspective view. In FIG. 3, the illustration of the portion 23 shown in FIG. 2 is omitted.
  • the composite sheet 10 has upper and lower layers 11 and 13 and an intermediate layer 12 interposed between both layers 11 and 13.
  • the upper and lower layers 11 and 13 are made of non-woven fabrics, and the non-woven fabrics are made of thermal synthetic fibers such as spun-bonded non-woven fabrics, void-bonded non-woven fabrics, and air-through non-woven fabrics made of thermoplastic synthetic fibers with a fineness of 0.1 to 10 d.
  • Bonded nonwoven fabrics, melt blown nonwoven fabrics, spunlace nonwoven fabrics and the like having a basis weight of 10 to 10 Og / m 2 are used.
  • the nonwoven fabric is preferably made of continuous fibers. With such a composite sheet 10, the gown 1 will not be fluffed or short fibers will fall out of the gown 1.
  • crimped composite fibers are used as the thermoplastic synthetic fibers, it becomes easy to obtain a composite sheet 10 having a soft touch and high air permeability.
  • Upper and lower layers 1 1 and 1 3 are the same It may be of a composition or of a different composition.
  • the nonwoven fabric of both layers 11 and 13 can be made water-repellent or hydrophilic by performing a surface treatment.
  • the intermediate layer 12 is made of an apertured plastic film, and has a flat top 16, a number of apertures 17 formed in the top 16, and a ventilation pipe 21 extending downward from the aperture 17.
  • the top 16 has an upper surface 18 and a lower surface 19, and the ventilation pipe 21 extends in a direction from the upper surface 18 to the lower surface 19 at the periphery of the hole 17.
  • the perforated plastic film has a thickness at the top 16 of 0.01 to 0.1 mm, and the wall thickness of the ventilation pipe 21 is the same as that of the top 16 or It is formed thinner.
  • the inner diameter d of the bore 17 and the ventilation pipe 21 is 0.
  • the length of the ventilation pipe 21 extending from the lower surface 19 is 0.2 to 3 mm.
  • the area occupancy of the openings 17 in the intermediate layer 12 is 5 to 50%.
  • the inner diameter d of the ventilation pipe 21 may gradually decrease from the upper surface 18 to the lower surface 19 (see FIG. 2), may gradually increase, or may hardly change.
  • the upper and lower layers 11 and 13 and the intermediate layer 12 are welded and integrated at a large number of joints 23 formed intermittently over the entire surface of the composite sheet 1.
  • the shape of the joint portion 23 is not specified, and may be, for example, a dot shape or a band shape.
  • the area occupancy of the composite sheet 10 is preferably 0.5 to 20%.
  • an adhesive such as an ultrasonic wave or a hot melt adhesive may be used as a means for joining the layers 11 to 13.
  • the nonwoven fabric of the upper and lower layers 11 and 13 can be made into a cloth-like material with air permeability on the inner and outer surfaces of the gown 1. Further, the upper and lower layers 11 and 13 can protect the ventilation pipe 21 so that the ventilation pipe 21 is not crushed and blocked.
  • the upper and lower layers 11 and 13 are made of hydrophobic fibers, it is possible to prevent liquid such as blood from permeating from the outside of the gown 1.
  • the intermediate layer 12 acts so as to prevent the liquid from diffusing between the upper and lower layers 11 and 13 by isolating the upper and lower layers 11 and 13.
  • the vent pipe 21 is provided for ventilation inside and outside the gown 1 if it is formed of a hydrophobic film and has an inside diameter of 0.1 to 6 mm, more preferably 0.1 to 3 mm. It is possible to effectively prevent the liquid from entering from the outside while enabling the pressure reduction. In the composite sheet 10 in which the inside diameter of the ventilation pipe 21 becomes gradually smaller from the inside to the outside of the gown 1, the moist air between the gun 1 and the wearer's skin is guided to the ventilation pipe 21. Thus, it is possible to easily discharge the liquid to the outside of the gown 1 and make it difficult for the liquid to enter the ventilation pipe 21 from the outside of the gown 1.
  • the composite sheet 10 acting in this way can exhibit high ventilation performance and high barrier performance against liquid permeation.
  • the composite sheet 10 is made up of the types of fibers, the basis weight, the hydrophilicity, and the dimensions of the opening 17 and the ventilation pipe 21 in the intermediate layer 12 in the nonwoven fabric of the upper and lower layers 11 and 13.
  • the ventilation performance and the barrier performance can be adjusted, so that a composite sheet having both these performances different according to the part of the gown 1 — It is preferable to use 10.
  • the composite sheet 10 according to the present invention described using the surgical gown 1 as an example is a disposable worn at a place where waste oil and sewage splash. In addition to all work clothes and disposable trousers, it can be used for disposable pants, disposable diapers, etc.
  • the composite sheet according to the present invention since the upper surface and the lower surface of the synthetic resin film having the ventilation pipe are covered with a nonwoven fabric made of synthetic fiber, high ventilation performance and high barrier performance against liquid permeation are achieved. It is possible to achieve both.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Abstract

The upper surface and lower surface of a plastic film (12), which has many apertures (17) and vent pipes (21) extending from the apertures (17), are covered with non-woven fabrics (11, 12).

Description

明 細 書 複合シー ト 技術分野  Description Composite sheet Technical field
この発明は、 使い捨ての作業衣や使い捨ての手術用ガウン、 使い捨てのパンツ、 使い捨てのおむつ等の使い捨て着用物品に 使用するのに好適な複合シー ト に関する。 背景技術  The present invention relates to a composite sheet suitable for use in disposable wearing articles such as disposable work clothes, disposable surgical gowns, disposable pants, disposable diapers, and the like. Background art
従来、 熱可塑性合成繊維からなる不織布と熱可塑性合成樹脂 からなる通気不透液性フ ィ ルムとを積層した複合シー トが液体 の透過を阻むバリ アー性能を有するものと して作業衣や手術用 ガウン、 使い捨ておむつ等の使い捨て着用物品に使用されてい る。 かかる複合シー トでは、 フ ィルムによって体液等の液体の 透過を阻み、 不織布によってフ ィルムに特有の肌触り を布様の ものに変えるこ とができる。  Conventionally, a composite sheet made by laminating a nonwoven fabric made of thermoplastic synthetic fiber and a gas-impermeable, liquid-impermeable film made of thermoplastic synthetic resin has a barrier performance that prevents the passage of liquids. Used in disposable gloves and disposable diapers. In such a composite sheet, the permeation of liquids such as body fluids is prevented by the film, and the unique feel of the film can be changed to a cloth-like one by the nonwoven fabric.
前記従来の複合シー ト を通気性の高いものにするには、 シ一 トに形成される通気性の開孔を大き く しなければな らない。 し かしながら、 その反面では、 そうするこ とによってこの複合シ 一卜のバリ ア一性能が低下する という問題が生じる。  In order to make the conventional composite sheet highly permeable, the permeable holes formed in the sheet must be enlarged. However, on the other hand, there arises a problem that the barrier performance of the composite sheet is reduced by doing so.
そこで、 この発明は、 使い捨て着用物品に使用する不織布と フィルムとからなる複合シー 卜において、 高い通気性能と液体 の透過に対する高いバ リ アー性能との両立を可能にするこ とを 課題に している。 発明の開示 前記課題解決のために、 この発明が対象とするのは、 熱可塑 性合成繊維からなる不織布と熱可塑性合成樹脂からなるフ ィ ル ムとを含み、 使い捨て着用物品の表面材と して使用される複合 シー トであ り、 この発明が特徴とする ところは、 前記フ ィルム が上面と、 下面と、 これら上下面間を貫通する多数の開孔とを 有し、 前記下面には前記開孔の周縁から下方へ延びる通気管が 形成されてお り、 前記不織布が、 前記フ ィ ルムの上面側を覆う 第 1不織布と、 前記フ ィ ルムの下面側を覆う第 2不織布とから な り、 前記フ ィルムと第 1、 2不織布とが、 前記複合シー トの 全面にわたって間欠的に接合している こ と、 にある。 Accordingly, an object of the present invention is to make it possible to achieve both high ventilation performance and high barrier performance against liquid permeation in a composite sheet comprising a nonwoven fabric and a film used for disposable wearing articles. I have. Disclosure of the invention In order to solve the above-mentioned problems, an object of the present invention includes a nonwoven fabric made of a thermoplastic synthetic fiber and a film made of a thermoplastic synthetic resin, and is used as a surface material of a disposable wearing article. The present invention is characterized in that the film has an upper surface, a lower surface, and a large number of openings penetrating between the upper and lower surfaces, and the opening is formed on the lower surface. A vent pipe extending downward from the peripheral edge of the film, the nonwoven fabric comprising: a first nonwoven fabric covering an upper surface side of the film; and a second nonwoven fabric covering a lower surface side of the film. The film and the first and second nonwoven fabrics are intermittently joined over the entire surface of the composite sheet.
かかる発明には、 以下のような好ま しい実施態様がある。 Such inventions have the following preferred embodiments.
( 1 ) 前記通気管の内径が 0. l ~ 6 mmの範囲にある。 (1) The inside diameter of the ventilation pipe is in the range of 0.1 to 6 mm.
( 2 ) 前記通気管の内径は、 前記上面から下面へ向かう方向に おいて次第に小さ く なる。  (2) The inner diameter of the ventilation pipe becomes gradually smaller in the direction from the upper surface to the lower surface.
( 3 ) 前記通気管の内径は、 前記上面から下面へ向かう方向に おいて次第に大き く なる。  (3) The inner diameter of the ventilation pipe gradually increases in the direction from the upper surface to the lower surface.
( 4 ) 前記第 1、 2不織布それそれの坪量は、 1 0〜 ： L O O g (4) The basis weight of each of the first and second nonwoven fabrics is 10 to: L O O g
/m2の範囲にある。 図面の簡単な説明 It is in the range of / m 2. BRIEF DESCRIPTION OF THE FIGURES
図 1 は、 ガウンの正面図。  Figure 1 is a front view of the gown.
図 2は、 複合シー トの断面図。  Figure 2 is a cross-sectional view of the composite sheet.
図 3は、 複合シー トの分解斜視図。 発明を実施するための最良の形態  Figure 3 is an exploded perspective view of the composite sheet. BEST MODE FOR CARRYING OUT THE INVENTION
添付の図面を参照し、 この発明に係る複合シー トの詳細を説 明する と、 以下のとお りである。 図 1は、 使い捨ての手術用ガウン 1の正面図である。 この種 ガウンは公知のもので、 例えば特開平 6 _ 2 0 7 3 0 1号公報 に開示されている。 ガウン 1は、 前身頃 2 と、 後身頃 3と、 一 対の袖 4とを有する。これらの部位に使用されるシー ト材料は、 手術の際などに血液等の液体がガウン 1の内部へ透過する こ と がないよう に、 その液体の透過を阻むバリ アー性能を有する と ともに、 着用時の蒸れを防ぐために、 高い通気性能を有してい るこ とが好ま しい。 ノ^; リ ァー性能と通気性能とは相反する性能 であるから、 使用されるシー ト材料は、 ガウン 1の部位に応じ てバリ アー性能が重視された り、通気性能が重視された りする。 図 2， 3はガウン 1などの使い捨て着用物品に使用するのに 好適なこの発明に係る複合シー ト 1 0の厚さ方向断面図と、 複 合シー ト 1 0をその厚さ方向で分解した斜視図である。 なお、 図 3では、 図 2に示された部位 2 3の図示が省かれている。 複合シー ト 1 0は、 上下層 1 1 , 1 3と、 これら両層 1 1， 1 3間に介在する中間層 1 2 とを有する。 上下層 1 1 , 1 3は 不織布からな り、 その不織布には、 繊度が 0. l〜 1 0 dの熱 可塑性合成繊維からなるスパンボン ド不織布やボイ ン トポン ド 不織布、 ェアスル一不織布等のサーマルボン ド不織布、 メル ト ブローン不織布、 スパンレース不織布等であって、 坪量 1 0〜 1 0 O g/m2 のものが使用される。 複合シー ト 1 0が手術用 ガウン 1に使用される場合の不織布は、 連続繊維からなるもの が好ま しい。 そのよう な複合シー ト 1 0であれば、 ガウン 1が 毛羽立った り、 ガウン 1から短い繊維が抜け落ちた りする とい う こ とがない。 熱可塑性合成繊維と して捲縮した複合繊維を使 用する と、 柔軟な肌触り と高い通気性とを有する複合シー ト 1 0を得るこ とが容易になる。 上下層 1 1 , 1 3の不織布は同一 組成のものでも、 異なる組成のものでも よい。 両層 1 1 , 1 3 の不織布は、 表面処理を施すこ とによって、 撥水性のものに し た り、 親水性のものに した りするこ とができる。 The details of the composite sheet according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a front view of a disposable surgical gown 1. This type of gown is known, and is disclosed in, for example, Japanese Patent Application Laid-Open No. 6-230701. The gown 1 has a front body 2, a back body 3, and a pair of sleeves 4. The sheet material used for these parts has a barrier function that prevents the passage of liquid such as blood so that the liquid does not penetrate into the gown 1 during surgery, etc. In order to prevent stuffiness when worn, it is preferable to have high ventilation performance. ^^ Since the rear performance and the ventilation performance are contradictory performances, the seat material used may be emphasized on the barrier performance or ventilation performance depending on the part of the gown 1. I do. Figs. 2 and 3 are cross-sectional views in the thickness direction of a composite sheet 10 according to the present invention suitable for use in disposable wearing articles such as gowns 1, and the composite sheet 10 is disassembled in the thickness direction. It is a perspective view. In FIG. 3, the illustration of the portion 23 shown in FIG. 2 is omitted. The composite sheet 10 has upper and lower layers 11 and 13 and an intermediate layer 12 interposed between both layers 11 and 13. The upper and lower layers 11 and 13 are made of non-woven fabrics, and the non-woven fabrics are made of thermal synthetic fibers such as spun-bonded non-woven fabrics, void-bonded non-woven fabrics, and air-through non-woven fabrics made of thermoplastic synthetic fibers with a fineness of 0.1 to 10 d. Bonded nonwoven fabrics, melt blown nonwoven fabrics, spunlace nonwoven fabrics and the like having a basis weight of 10 to 10 Og / m 2 are used. When the composite sheet 10 is used for the surgical gown 1, the nonwoven fabric is preferably made of continuous fibers. With such a composite sheet 10, the gown 1 will not be fluffed or short fibers will fall out of the gown 1. When crimped composite fibers are used as the thermoplastic synthetic fibers, it becomes easy to obtain a composite sheet 10 having a soft touch and high air permeability. Upper and lower layers 1 1 and 1 3 are the same It may be of a composition or of a different composition. The nonwoven fabric of both layers 11 and 13 can be made water-repellent or hydrophilic by performing a surface treatment.
中間層 1 2 は、 開孔プラスチックフ ィルムからなるもので、 平坦な頂部 1 6 と、 頂部 1 6 に形成された多数の開孔 1 7 と、 開孔 1 7から下方へ延びる通気管 2 1 とを有する。 頂部 1 6 は 上面 1 8 と下面 1 9 とを有し、 通気管 2 1 は閧孔 1 7の周縁に おいて、 上面 1 8から下面 1 9へ向かう方向へ延びている。 開 孔プラスチッ ク フ ィ ルムは、 頂部 1 6 の厚さが 0 . 0 1〜 0 . 1 m mであ り、 通気管 2 1 の管壁の厚さは頂部 1 6 と同じ程度 であるかまたはそれよ り も薄く形成されている。 閧孔 1 7 と通 気管 2 1 の内径 dは 0 . ：！ 〜 6 m mであ り、 通気管 2 1 が下面 1 9 から延びる長さは 0 . 2〜 3 m mである。 中間層 1 2 にお ける開孔 1 7の面積占有率は 5〜 5 0 %である。  The intermediate layer 12 is made of an apertured plastic film, and has a flat top 16, a number of apertures 17 formed in the top 16, and a ventilation pipe 21 extending downward from the aperture 17. And The top 16 has an upper surface 18 and a lower surface 19, and the ventilation pipe 21 extends in a direction from the upper surface 18 to the lower surface 19 at the periphery of the hole 17. The perforated plastic film has a thickness at the top 16 of 0.01 to 0.1 mm, and the wall thickness of the ventilation pipe 21 is the same as that of the top 16 or It is formed thinner. The inner diameter d of the bore 17 and the ventilation pipe 21 is 0. The length of the ventilation pipe 21 extending from the lower surface 19 is 0.2 to 3 mm. The area occupancy of the openings 17 in the intermediate layer 12 is 5 to 50%.
通気管 2 1 の内径 dは、 上面 1 8 から下面 1 9へ向かって次 第に小さ く なる場合と （図 2参照）、 次第に大き く なる場合と、 殆ど変化しない場合とがある。 開孔 1 7 と通気管 2 1 の形状に 特別の規定はないが、 図ではそれそれが円形を呈している。  The inner diameter d of the ventilation pipe 21 may gradually decrease from the upper surface 18 to the lower surface 19 (see FIG. 2), may gradually increase, or may hardly change. There are no special provisions for the shape of the opening 17 and the ventilation pipe 21. However, in the figure, each of them is circular.
上下層 1 1， 1 3 と中間層 1 2 とは、 複合シー ト 1 の全面に わたって間欠的に形成される多数の接合部 2 3で互いに溶着し、 一体化している。 接合部 2 3の形状に規定はなく、 例えば点状 でも、 帯状でも よいが、 複合シー ト 1 0 における面積占有率は 0 . 5〜 2 0 %である こ とが好ま しい。 また、 各層 1 1 〜 ： 1 3 を接合する手段には、 溶着の他に、 超音波やホッ トメル ト接着 剤等の接着剤を採用するこ ともできる。  The upper and lower layers 11 and 13 and the intermediate layer 12 are welded and integrated at a large number of joints 23 formed intermittently over the entire surface of the composite sheet 1. The shape of the joint portion 23 is not specified, and may be, for example, a dot shape or a band shape. The area occupancy of the composite sheet 10 is preferably 0.5 to 20%. In addition, in addition to welding, an adhesive such as an ultrasonic wave or a hot melt adhesive may be used as a means for joining the layers 11 to 13.
このよう に形成される複合シ一 ト 1 0でガウン 1 を作るとき には、 上下層 1 1， 1 3のどち らを肌に向けてもよい。 ガウン 1 において、 上下層 1 1， 1 3の不織布は、 ガウン 1の内外面 を通気性で布様のものにするこ とができる。 また、 上下層 1 1 , 1 3は通気管 2 1が潰れて閉塞するこ とがないよう に、 通気管 2 1 を保護するこ とができる。 上下層 1 1 , 1 3が疎水性繊維 からなるものである と きには、 ガウン 1の外側から血液等の液 体が透過するのを阻止するこ とができる。 中間層 1 2は、 上下 層 1 1 , 1 3 を隔離するこ とによって、 両層 1 1， 1 3の間で 液体の拡散が生じるこ とがないよう に作用する。通気管 2 1 は、 それが疎水性フ ィルムで形成され、 0 . 1〜 6 mmの内径、 よ り好ま し く は 0. 1〜 3 mmの内径を有する場合には、 ガウン 1 内外の通気を可能に しながら液体が外側から浸入するのを効 果的に防ぐこ とができる。 通気管 2 1 の内径がガウ ン 1の内側 から外側へ向かって次第に小さ く なる複合シー ト 1 0では、 ガ ゥン 1 と着用者の肌との間の湿潤空気を通気管 2 1へ導いてガ ゥン 1の外側へ排出するこ とが容易で、 しかも液体がガウン 1 の外側から通気管 2 1 へ浸入するこ とを困難にする こ とができ る。 When forming the gown 1 with the composite sheet 10 formed in this way, either of the upper and lower layers 11 and 13 may be directed to the skin. gown In 1, the nonwoven fabric of the upper and lower layers 11 and 13 can be made into a cloth-like material with air permeability on the inner and outer surfaces of the gown 1. Further, the upper and lower layers 11 and 13 can protect the ventilation pipe 21 so that the ventilation pipe 21 is not crushed and blocked. When the upper and lower layers 11 and 13 are made of hydrophobic fibers, it is possible to prevent liquid such as blood from permeating from the outside of the gown 1. The intermediate layer 12 acts so as to prevent the liquid from diffusing between the upper and lower layers 11 and 13 by isolating the upper and lower layers 11 and 13. The vent pipe 21 is provided for ventilation inside and outside the gown 1 if it is formed of a hydrophobic film and has an inside diameter of 0.1 to 6 mm, more preferably 0.1 to 3 mm. It is possible to effectively prevent the liquid from entering from the outside while enabling the pressure reduction. In the composite sheet 10 in which the inside diameter of the ventilation pipe 21 becomes gradually smaller from the inside to the outside of the gown 1, the moist air between the gun 1 and the wearer's skin is guided to the ventilation pipe 21. Thus, it is possible to easily discharge the liquid to the outside of the gown 1 and make it difficult for the liquid to enter the ventilation pipe 21 from the outside of the gown 1.
このよう に作用する複合シー ト 1 0は、 高い通気性能と液体 の透過に対する高いバ リ アー性能とを発揮するこ とができる。 もっ とも、 複合シー ト 1 0は、 上下層 1 1 , 1 3の不織布にお ける繊維の種類や坪量、 親水度、 中間層 1 2における開孔 1 7 と通気管 2 1 の諸寸法ゃ開孔 1 7の面積占有率を変化させるこ とによって、 通気性能とバ リ ア一性能とを調整するこ とができ るから、 ガウン 1の部位に応じてこれら両性能の異なる複合シ — ト 1 0を使用するこ とが好ま しい。  The composite sheet 10 acting in this way can exhibit high ventilation performance and high barrier performance against liquid permeation. At least, the composite sheet 10 is made up of the types of fibers, the basis weight, the hydrophilicity, and the dimensions of the opening 17 and the ventilation pipe 21 in the intermediate layer 12 in the nonwoven fabric of the upper and lower layers 11 and 13. By changing the area occupancy of the opening 17, the ventilation performance and the barrier performance can be adjusted, so that a composite sheet having both these performances different according to the part of the gown 1 — It is preferable to use 10.
手術用ガウン 1 を例に して説明したこの発明に係る複合シ一 ト 1 0は、 廃油や汚水が飛散するよう な場所で着用する使い捨 ての作業衣や使い捨てのズボンなどの他に、使い捨てのパンツ、 使い捨てのおむつ等に使用するこ ともできる。 この発明に係る複合シー トは、 通気管を有する合成樹脂フ ィ ルムの上面側と下面側とを合成繊維からなる不織布で被覆した から、 高い通気性能と、 液体の透過に対する高いバリ アー性能 とを両立させるこ とが可能になる。 The composite sheet 10 according to the present invention described using the surgical gown 1 as an example is a disposable worn at a place where waste oil and sewage splash. In addition to all work clothes and disposable trousers, it can be used for disposable pants, disposable diapers, etc. In the composite sheet according to the present invention, since the upper surface and the lower surface of the synthetic resin film having the ventilation pipe are covered with a nonwoven fabric made of synthetic fiber, high ventilation performance and high barrier performance against liquid permeation are achieved. It is possible to achieve both.

Claims

請 求 の 範 囲 The scope of the claims
1 . 熱可塑性合成繊維からなる不織布と熱可塑性合成樹脂から なるフィ ルムとを含み、 使い捨て着用物品の表面材と して使用 される複合シー ト において、 1. A composite sheet including a nonwoven fabric made of a thermoplastic synthetic fiber and a film made of a thermoplastic synthetic resin and used as a surface material of a disposable wearing article,
前記フ ィルムが上面と、 下面と、 これら上下面間を貫通する 多数の開孔とを有し、 前記下面には前記開孔の周縁から下方へ 延びる通気管が形成されてお り、  The film has an upper surface, a lower surface, and a number of openings penetrating between the upper and lower surfaces, and a ventilation pipe extending downward from the periphery of the opening is formed on the lower surface.
前記不織布が、 前記フ ィ ルムの上面側を覆う第 1不織布と、 前記フ ィ ルムの下面側を覆う第 2不織布とからな り、  The nonwoven fabric comprises a first nonwoven fabric covering an upper surface side of the film, and a second nonwoven fabric covering a lower surface side of the film;
前記フ ィルムと前記第 1、 2不織布とが、 前記複合シー トの 全面にわたって間欠的に接合しているこ とを特徴とする前記複 合シー ト。  The composite sheet according to claim 1, wherein the film and the first and second nonwoven fabrics are intermittently joined over the entire surface of the composite sheet.
2 . 前記通気管の内径が 0 . 1〜 6 mmの範囲にある請求項 1 記載の複合シー ト。 2. The composite sheet according to claim 1, wherein the inner diameter of the ventilation pipe is in a range of 0.1 to 6 mm.
3 . 前記通気管の内径が前記上面から下面へ向かう方向におい て次第に小さ く なる請求項 1 または 2記載の複合シ一 ト。 3. The composite sheet according to claim 1, wherein an inner diameter of the ventilation pipe becomes gradually smaller in a direction from the upper surface to the lower surface.
4. 前記通気管の内径が前記上面から下面へ向かう方向におい て次第に大き く なる請求項 1記載の複合シー ト。 4. The composite sheet according to claim 1, wherein an inner diameter of the ventilation pipe gradually increases in a direction from the upper surface to the lower surface.
5 . 前記第 1、 2不織布それそれの坪量が 1 0〜 ： I 0 0 g/m2 の範囲にある請求項 1 ~ 4のいずれかに記載の複合シー ト。 . 5 wherein the first, 2 nonwoven that its basis weight 1 0: composite sheet according to any one of claims 1 to 4 in the range of I 0 0 g / m 2.
PCT/JP2000/004663 1999-07-12 2000-07-12 Composite sheet WO2001003914A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU60140/00A AU6014000A (en) 1999-07-12 2000-07-12 Composite sheet

Applications Claiming Priority (2)

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JP19819599A JP3908413B2 (en) 1999-07-12 1999-07-12 Composite sheet and disposable wearing article using this composite sheet
JP11/198195 1999-07-12

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WO2001003914A1 true WO2001003914A1 (en) 2001-01-18

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US20140363625A1 (en) * 2013-06-11 2014-12-11 Chen-Cheng Huang Breathable and waterproof composite fabric
US10391736B2 (en) 2013-06-11 2019-08-27 Chen-Cheng Huang Breathable and waterproof composite fabric and a method of making the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10250275B4 (en) * 2002-10-28 2014-08-21 Paul Hartmann Ag Disposable garment

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JPH0678949A (en) * 1992-09-07 1994-03-22 Mitsui Petrochem Ind Ltd Surface sheet for body fluid absorptive article
JPH11113954A (en) * 1997-10-17 1999-04-27 Shiseido Co Ltd Surface raw material or filtering material for absorbent article, and its manufacture
JPH11348163A (en) * 1998-06-03 1999-12-21 Mitsui Chem Inc Back sheet material for absorbable article

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JPH02193663A (en) * 1989-01-21 1990-07-31 Uni Charm Corp Surface sheet for sanitary article
JPH0678949A (en) * 1992-09-07 1994-03-22 Mitsui Petrochem Ind Ltd Surface sheet for body fluid absorptive article
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Publication number Priority date Publication date Assignee Title
US20140363625A1 (en) * 2013-06-11 2014-12-11 Chen-Cheng Huang Breathable and waterproof composite fabric
US9713914B2 (en) * 2013-06-11 2017-07-25 Chen-Cheng Huang Breathable and waterproof composite fabric
US10391736B2 (en) 2013-06-11 2019-08-27 Chen-Cheng Huang Breathable and waterproof composite fabric and a method of making the same

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JP2001018316A (en) 2001-01-23
AU6014000A (en) 2001-01-30
JP3908413B2 (en) 2007-04-25

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