JPH0337522B2 - - Google Patents

Info

Publication number
JPH0337522B2
JPH0337522B2 JP57172930A JP17293082A JPH0337522B2 JP H0337522 B2 JPH0337522 B2 JP H0337522B2 JP 57172930 A JP57172930 A JP 57172930A JP 17293082 A JP17293082 A JP 17293082A JP H0337522 B2 JPH0337522 B2 JP H0337522B2
Authority
JP
Japan
Prior art keywords
fibers
layer
weight
flat
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP57172930A
Other languages
English (en)
Other versions
JPS5962050A (ja
Inventor
Hideo Kimura
Masahiro Tabuchi
Genichi Iwasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Vilene Co Ltd
Original Assignee
Japan Vilene 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 Japan Vilene Co Ltd filed Critical Japan Vilene Co Ltd
Priority to JP57172930A priority Critical patent/JPS5962050A/ja
Priority to US06/529,557 priority patent/US4569343A/en
Priority to EP83109469A priority patent/EP0107051B1/de
Priority to DE8383109469T priority patent/DE3368514D1/de
Publication of JPS5962050A publication Critical patent/JPS5962050A/ja
Publication of JPH0337522B2 publication Critical patent/JPH0337522B2/ja
Granted legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D04H1/4258—Regenerated cellulose series
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/00051—Accessories for dressings
    • A61F13/00063—Accessories for dressings comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/44—Medicaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/84—Accessories, not otherwise provided for, for absorbent pads
    • A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61F13/00—Bandages or dressings; Absorbent pads
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    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
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    • A61F2013/00604—Multilayer
    • A—HUMAN NECESSITIES
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    • A61F13/00—Bandages or dressings; Absorbent pads
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    • A61F13/00—Bandages or dressings; Absorbent pads
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    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530131—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium being made in fibre but being not pulp
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530131—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium being made in fibre but being not pulp
    • A61F2013/53016—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium being made in fibre but being not pulp having special shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic materials
    • A61L2300/102—Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/252—Glass or ceramic [i.e., fired or glazed clay, cement, etc.] [porcelain, quartz, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2008—Fabric composed of a fiber or strand which is of specific structural definition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
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    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/609—Cross-sectional configuration of strand or fiber material is specified
    • Y10T442/611—Cross-sectional configuration of strand or fiber material is other than circular
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Hematology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Vascular Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Materials For Medical Uses (AREA)
  • Medicinal Preparation (AREA)
  • Nonwoven Fabrics (AREA)

Description

【発明の詳細な説明】
本発明は基材の片面に薬剤を塗布して用いる皮
膚貼付剤に関するものである。特に基材の片面に
カオリンクレー、グリセリン、サリチル酸メチ
ル、ｌ−メントール等の薬剤を塗布して用いる、
いわゆるパツプ剤に関するものである。 近年、パツプ剤の基材として、綿ネルに代え不
織布が用いられるようになつてきている。不織布
は、綿ネルに比べて価格も安くまた柔軟性に富む
ため皮膚になじみ易く、好適な基材である。しか
し通気度が比較的高く塗膏後の薬剤が背面ににじ
み出すという欠点がある。この欠点を克服するた
め、不織布の目付を増大させることが考えられ
る。しかしこの方法は必然的に価格上昇、柔軟性
の低下を伴うもので、不織布の持つ利点を減殺さ
せる方法である。 薬剤のにじみ出しは、不織布を構成する繊維相
互間に形成される孔が存在するためである。そし
て現在用いられている不織布はこの孔が大きく、
かつ単位面積当り多いためである。 そこで本発明者等は種々検討した結果、構成繊
維として特殊なものを用いることにより、孔を遮
へいすることができ、従つて薬剤のにじみ出しが
防止される事を見出し本発明に至つた。 すなわち、本発明は、不織布基材の片面に薬剤
を塗布してなる皮膚貼付剤において、前記基材は
アスペクトレーシオ（短軸対長軸の比率）１：２
以上の偏平繊維を少なくとも20重量％以上含む層
を有し、かつ、該層を厚み方向に切断したさいの
断面において、該偏平繊維の長軸方向と該層の平
面方向とのなす角度は平均75゜以下であることを
特徴とする皮膚貼付剤に関するものである。 本発明に用いる偏平繊維とは、主として繊維の
横断面が惰円形、四角形のものをさしている。こ
の他に横断面が「く」の字状のものや「Ｃ」字状
のものも本発明にいう偏平繊維に包含される。通
常、不織布の原料繊維は横断面が円形であり、こ
れに比べ偏平繊維は構成繊維相互間で形成された
孔を遮へいする効果がある。 偏平繊維のアスペクトレーシオは１：２以上で
あることが必要である。アスペクトレーシオと
は、繊維の横断面の形状における短軸と長軸の比
である。横断面が惰円形の場合は、惰円の短軸と
長軸の比になり、四角形の場合は短辺と長辺の比
になる。また「く」の字状又は「Ｃ」字状の場合
は、左端と右端とを直線で結んだ線が長軸とな
り、繊維の肉厚が短軸となる。アスペクトレーシ
オが１：２未満であると横断面が円形に近づき、
孔を遮へいする能力が低下してゆき、本発明に用
いるのには好ましくない。偏平繊維の繊度は、ど
のようなものであつてもよいが、構成繊維相互間
に形成される孔を遮へいし、出来上がつた基材の
柔軟性を損なわないためには、約10デニール以下
が好ましい。 偏平繊維は層中に少なくとも20重量％以上混入
される必要がある。ここで層とは、不織布が例え
ば２つの異なる組成の繊維集積層で構成されてい
る場合（これを２層構造の不織布という）の一つ
の層をいう。これは３層構造又はそれ以上の層を
有する不織布の場合も同様である。不織布が単一
の組成のものよりなる場合は、不織布全体が層と
呼ばれる。このような層中に偏平繊維が20重量％
未満しか混入されない場合には全体に亙つて孔を
遮へいする効果が劣り好ましくない。偏平繊維以
外の繊維としては、横断面がほぼ円形の通常の天
然繊維、半合成繊維合成繊維が用いられる。偏平
繊維やその他の繊維の組成としては、ポリプロピ
レン、ポリエチレン、ポリアミド、ポリエステ
ル、セルロース等従来公知の種々のものが用いら
れる。 偏平繊維を含む層を厚み方向に切断したさいの
断面の状態は図に示す如くである。ほぼ四辺形に
見えるのが偏平繊維であり、円形に見えるのが他
の混入されている繊維である。四辺形の大きさに
種々のものがあるのは、偏平繊維が正確な横断面
で切断されておらず、斜めに切断されている場合
もあるからである。 本発明においては偏平繊維の長軸方向と層の平
面方向とのなす角度は平均75゜以下である必要が
ある。ここで長軸方向は通常偏平繊維の長軸と一
致する。しかし偏平繊維のアスペクトレーシオが
大きく、長軸が折りたたまれているときは、長軸
の左端と右端とを結ぶ直線が長軸方向となる。平
面方向とは層の面方向、つまり厚み方向と垂直な
面をさしている。長軸方向と平面方向とは平均
75゜以下の角度をなすことが本発明では重要であ
る。平均75゜より大きく90゜に近づくと偏平繊維の
長軸方向がほぼ厚み方向を向いていることにな
り、不織布基材の片面に塗られた薬剤がにじみ出
す原因となる孔を遮へいする効果が減殺される。
平均75゜以下とは任意の断面において長軸方向と
平面方向とのなす角度（鋭角部の角度をいう）を
測定し、これの総和を測定数で割つたものであ
る。具体的な測定法としては、偏平繊維の断面が
10本〜20本観察しうる部分を５個程度取り出し、
各々を電子顕微鏡等で観察して偏平繊維の長軸方
向と層の平面方向とのなす角度を測定する。そし
てそれらの平均を求めることにより行うことがで
きる。 このような特定の配列をした偏平繊維を含む層
は、偏平繊維をカード法で開繊しながらシート化
することにより得ることができる。また偏平繊維
を開繊し、集積した後、軽く加圧することによつ
ても得ることができる。この層は所望に応じて、
例えば機械的強度を向上させるため、軽くニード
リングしてもよい。これにより偏平繊維が厚み方
向に配列する傾向を持つが、長軸方向が厚み方向
と一致する傾向にならない限り、差支えない。 このようにして得られた層を具備する不織布基
材は、片面に種々の薬剤が塗布されて用いられ
る。そして層中において偏平繊維が横たわつた状
態で存在するため、孔を遮へいし、薬剤が背面に
にじみ出ることが防止される。 本発明の皮膚貼付剤は、パツプ剤のみでなく、
ゴム膏薬、副腎皮質ホルモン外用剤、痔薬等の
種々の外用薬として用いることができる。 以下本発明を実施例に基づいて説明する。 実施例 １ アスペクトレーシオ１：20、繊度５デニールの
偏平レイヨン繊維50重量％と、ポリエチレン成分
とポリプロピレン成分とよりなるサイドバイサイ
ド型の複合繊維（横断面は円形、繊度３デニー
ル）50重量％とを混合し、カード法により開繊し
て、シート状のウエブを形成した。このウエブを
加圧下で30秒間、140℃で熱処理を行なつた。こ
れにより複合繊維のポリエチレン成分が軟化、溶
融しウエブの構成繊維相互間が結合される。得ら
れた不織布は目付60ｇ／m2、厚み0.50mmであつ
た。これを基材として、片面にカオリンクレー
（45重量部）、精製水（30重量部）、グリセリン
（20重量部）、ポリビニルアルコール（10重量部）
を主成分とし、他に少量のサリチル酸メチル、ハ
ツカ油、ｌ−メントール、塩酸ジフエンヒドラミ
ンを加えた軟質外用薬を塗布し、更に軟質外用薬
の上に離型性フイルムを当接して本発明に係る皮
膚貼付剤を得た。 （比較例） 本発明品の性能評価のため、以下の３種類の比
較品を作成した。 (1) 比較品Ａ 横断面が円形で３デニールのレイヨン繊維50重
量％と、実施例１に用いた複合繊維50重量％と混
合し、実施例１と同様の方法で基材を作成し、同
様の軟質外用薬を塗布してなる皮膚貼付剤。尚、
不織布の目付は60ｇ／m2、厚みは0.63mmであつ
た。 (2) 比較品Ｂ 比較品Ａと目付、厚みが相違するのみで、各々
90ｇ／m2、0.85mmである。 (3) 比較品Ｃ 比較品Ａの基材の軟質外用薬の塗布面となる面
に目止め剤として、カオリンクレー（80重量部）、
ポリビニルアルコール（10重量部）、ポリアクリ
ル酸エステル（10重量部）からなる組成物を40
ｇ／m2塗布した。この基材に実施例１で用いた軟
質外用薬を塗布した皮膚貼付剤。 （評価） 本発明品及び比較品Ａ、Ｂ、Ｃを、40℃の条件
下で１Kg／10cm×15cmの荷重をかけた状態で経時
的に基布表面への軟質外用薬のにじみ出しを観察
した。尚、観察枚数は各品５枚づつ行なつた。こ
の結果は以下の表のとおりである。
【表】
【表】 実施例 ２ アスペクトレーシオ１：2.5、繊度1.5デニール
の偏平ナイロン繊維50重量％と、横断面が円形で
繊度３デニールのポリエステル繊維30重量％と、
横断面が円形で繊度３デニールのレイヨン繊維20
重量％とを混合し、カード法により開繊して、目
付40ｇ／m2のシート状のウエブを形成した。この
ウエブに構成繊維相互間の結合剤としてポリアク
リル酸エステルのエマルジヨンを含浸し、その後
乾燥して60ｇ／m2の不織布を得た。これを基材と
して実施例１で用いた軟質外用薬を塗布して皮膚
貼付剤を得た。これは実施例１と同様の評価方法
で20日経過後も５枚ともにじみ出しが見られなか
つた。 実施例 ３ アスペクトレーシオ１：20、繊度５デニールの
偏平レイヨン繊維60重量％と、横断面が円形で繊
度３デニールのポリエステル繊維40重量％とを混
合し、カード法により開繊して、目付12ｇ／m2の
ウエブを形成した。このウエブに構成繊維相互間
の結合剤としてポリアクリル酸エステルのエマル
ジヨンを含浸し、その後乾燥して15ｇ／m2の不織
フリースを得た。これに横断面が円形で繊度３デ
ニールのポリエステル繊維からなる目付85ｇ／m2
のウエブを重合し、ニードルパンチを施して不織
布を得た。この不織布は偏平繊維を含む層と偏平
繊維を含まない層とを有し２層構造になつてい
る。この後偏平繊維を含む繊維フリース層側に実
施例１で用いた軟質外用薬を塗布して皮膚貼付剤
を得た。これを実施例１と同様の方法で評価した
ところ４週間経過後においても５枚ともにじみ出
しは見られなかつた。 （比較例） 実施例３で用いた偏平繊維に代えて、横断面が
円形で繊度５デニールのレイヨン繊維を用いて、
実施例３と同様の２層構造不織布を得た。これに
軟質外用薬を塗布して皮膚貼付剤を得た。これを
実施例１と同様の方法で評価したところ２週間経
過後において５枚いずれにもにじみ出しが見られ
た。
【図面の簡単な説明】
図面は偏平繊維を含む層を厚み方向に切断した
さいの横断面を電子顕微鏡で観察した状態を模型
的に示したものである。

Claims (1)

    【特許請求の範囲】
  1. １ 不織布基材の片面に薬剤を塗布してなる皮膚
    貼付剤において、前記基材はアスペクトレーシオ
    （短軸対長軸の比率）１：２以上の偏平繊維を少
    なくとも20重量％以上含む層を有し、かつ、該層
    を厚み方向に切断したさいの断面において、該偏
    平繊維の長軸方向と該層の平面方向とのなす角度
    は平均75゜以下であることを特徴とする皮膚貼付
    剤。
JP57172930A 1982-09-30 1982-09-30 皮膚貼付剤 Granted JPS5962050A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP57172930A JPS5962050A (ja) 1982-09-30 1982-09-30 皮膚貼付剤
US06/529,557 US4569343A (en) 1982-09-30 1983-09-06 Skin application medicament
EP83109469A EP0107051B1 (de) 1982-09-30 1983-09-23 Wundauflage für Verbände oder Kompressen
DE8383109469T DE3368514D1 (en) 1982-09-30 1983-09-23 Wound covering for bandages or compresses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57172930A JPS5962050A (ja) 1982-09-30 1982-09-30 皮膚貼付剤

Publications (2)

Publication Number Publication Date
JPS5962050A JPS5962050A (ja) 1984-04-09
JPH0337522B2 true JPH0337522B2 (ja) 1991-06-05

Family

ID=15950984

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57172930A Granted JPS5962050A (ja) 1982-09-30 1982-09-30 皮膚貼付剤

Country Status (4)

Country Link
US (1) US4569343A (ja)
EP (1) EP0107051B1 (ja)
JP (1) JPS5962050A (ja)
DE (1) DE3368514D1 (ja)

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US4211227A (en) * 1978-07-03 1980-07-08 The Kendall Company Surgical sponge material
JPS5855789B2 (ja) * 1979-08-07 1983-12-12 花王株式会社 生理用ナプキンの外包材
DE3018969A1 (de) * 1980-05-17 1981-11-26 Beiersdorf Ag, 2000 Hamburg Mischung fuer halbstarre medizinische stuetzverbaende, damit erhaltene medizinische binde und verfahren zu deren herstellung

Also Published As

Publication number Publication date
JPS5962050A (ja) 1984-04-09
EP0107051B1 (de) 1986-12-30
EP0107051A2 (de) 1984-05-02
US4569343A (en) 1986-02-11
DE3368514D1 (en) 1987-02-05
EP0107051A3 (en) 1985-07-03

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