WO1997007273A1 - Tissu ou soie non tisses pour fournitures medicales - Google Patents

Tissu ou soie non tisses pour fournitures medicales Download PDF

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Publication number
WO1997007273A1
WO1997007273A1 PCT/JP1996/002271 JP9602271W WO9707273A1 WO 1997007273 A1 WO1997007273 A1 WO 1997007273A1 JP 9602271 W JP9602271 W JP 9602271W WO 9707273 A1 WO9707273 A1 WO 9707273A1
Authority
WO
WIPO (PCT)
Prior art keywords
silk
fibers
nonwoven fabric
medical
gauze
Prior art date
Application number
PCT/JP1996/002271
Other languages
English (en)
Japanese (ja)
Inventor
Takashi Ninagawa
Original Assignee
Silk Kogei 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 Silk Kogei Co. Ltd. filed Critical Silk Kogei Co. Ltd.
Publication of WO1997007273A1 publication Critical patent/WO1997007273A1/fr

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
    • D04H1/44—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
    • 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
    • A61L15/40—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing ingredients of undetermined constitution or reaction products thereof, e.g. plant or animal extracts
    • 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
    • D04H1/492—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 by fluid jet

Definitions

  • the present invention relates to a medical nonwoven fabric used for gauze, bandages, sheets, surgical gowns and the like. Background art
  • Some of the so-called surgical gauze include an affected gauze used to protect the tissue during surgery, a square gauze (wiper) used for absorption and wiping, and our gauze used for surgical procedures (Dressing).
  • Surgical gauze has the following roles:
  • the affected area gauze is currently made of rayon cotton and spunlace blended with polyester for strength. Have been done.
  • cotton yarn woven gauze is used for dressing to absorb or protect wound exudate.
  • this gauze is basically 30 cm in width and is cut or folded according to the size of the wound.
  • it is difficult to use the lint after cutting or to fold it.
  • nonwoven fabrics are widely used in the medical field, such as sheets and surgical gowns, but most of the nonwoven fabrics conventionally used are made of synthetic fibers such as nylon and polyester.
  • the present invention has been made to solve such problems, and one of the objects thereof is to have sufficient absorbency, sufficient softness not to damage body tissues, and An object of the present invention is to provide a surgical gauze with less rejection from body tissues. It also provides materials that can be widely used for other medical uses. Disclosure of the invention
  • the medical nonwoven fabric according to the present invention which has been made to solve the above-mentioned problem, is characterized in that the medical nonwoven fabric is made of only short fibers obtained by cutting silk fibers. Therefore, no binder (adhesive) is used to fix the fibers.
  • the silk fibers may be unrefined or refined. Unrefined products can be produced at low cost, so they are suitable for use in sheets, blankets, medical clothing, and the like. It is also suitable for applications that require a high degree of chemical rejection, because there is no risk of residual chemicals during scouring. On the other hand, by performing scouring, part or all of the sericin layer on the surface is removed, and at the same time, dirt on the surface is also removed. When required, it is desirable to use refined silk fibers. Such scoured silk fibers are used for surgical gauze such as the affected area gauze, wiper, and dressing described above. However, in this case, perform sufficient de-chemical treatment after scouring.
  • the length of the short fiber is about l to 10 cm. If the length is shorter than this, the entanglement becomes insufficient and the print tends to occur. In addition, even if the length is longer than this, the entanglement does not work well, and the nonwoven fabric has a lot of fraying. In addition, it is more preferably about 5 to 7 cm.
  • the entanglement for forming the silk short fibers into a nonwoven fabric any of a needle punching method and a hydroentanglement method used in general nonwoven fabric production can be employed.
  • the nonwoven fabric according to the present invention is produced as follows. First, unrefined or refined raw silk fibers (filament fibers) are cut into appropriate lengths to make short fibers. This is removed by carding to remove short fibers of less than a predetermined length and impurities to form a sliper. Before the carding, different types of silk fibers may be mixed (mixed). Slivers generated continuously are cut at appropriate intervals by Athenyue. At this time, cut the sliver so as not to cut the short silk fiber.
  • a slicer cut to an appropriate length is placed on a net, and the net is vibrated to form a fleece (fiber accumulation layer). Keep the fleece slightly moist.
  • a method of giving moisture to the fleece a method such as spraying fog water on the fleece or increasing the humidity of the atmosphere can be used. This removes static electricity due to friction between the silk fibers, prevents separation between the silk fibers due to static electricity, and facilitates formation of a fleece. Further, in the needle punching step described later, the degree of adhesion between the needle and the fiber is increased, and the entanglement of the fiber is facilitated.
  • the rotatable blade supported by the hanging bar is inserted into the moving fleece.
  • the blades rotate as the fleece moves, stirring the silk fibers in the fleece and removing short waste fibers (dust).
  • the fiber is entangled by repeatedly passing the needle through the fleece, Obtain an integrated nonwoven. Finally, the thickness is made uniform by pressing with a heating roller.
  • a high-pressure columnar water stream is similarly sprayed onto the filtered fleece to entangle the fibers.
  • any one produced by the needle punch method or the hydroentanglement method can be used.
  • the liquid retention ability the ability to absorb and hold blood and other liquids
  • the one manufactured by the 21 dollar punch method is more suitable, and the one manufactured by the hydroentanglement method is more suitable when emphasis is placed on strength or low lintability.
  • the nonwoven fabric of the present invention is made of silk, its properties do not change as long as it is subjected to heat sterilization treatment or gas sterilization treatment (EOG) similar to conventional cotton yarn gauze.
  • EOG gas sterilization treatment
  • a urethane thread or the like for X-ray detection may be embedded.
  • the medical non-woven fabric according to the present invention includes, in addition to the surgical gauze described above, a bandage, a base cloth for a patch, a gauze for an emergency bandage (also referred to as a wound tape, for example, a brand name band aid), a surgical gown, a mask, Can be used for sheets, filters, etc.
  • a bandage also referred to as a wound tape, for example, a brand name band aid
  • a surgical gown for example, a brand name band aid
  • a mask can be used for sheets, filters, etc.
  • the invention's effect is desirable to appropriately change the basis weight and the like according to each of these uses.
  • the nonwoven fabric according to the present invention is composed only of silk fibers. Therefore, it can be used with confidence even on parts that directly touch the skin or body tissues.
  • the results of examining the allergic properties of silk fiber by comparison with rabbit hair are described below.
  • the experimental method used is as follows. First, 5 mg each of silk fiber and rabbit hair are subcutaneously planted in an ICR mouse (a type of hybrid mouse).
  • mice were inoculated with a solution (0.1% aqueous solution) of the same silk fiber or rabbit hair dissolved in water having a weight of 100 times the weight (0.1% aqueous solution), and the thickness of the footpad was measured.
  • the strength of the allergic reaction was examined by the weight of the popliteal lymph node and the weight of the popliteal lymph node.
  • Footpad thickness (10 m) Antigen Antigen inoculated side Inoculated saline side Increased amount Silk (0.1% aqueous solution) 1 300 300 0
  • the medical nonwoven fabric according to the present invention is made of silk, so that it is soft and hardly makes any fine scratches on the surface even when the body tissue is wiped.
  • the silk fiber itself has a large liquid absorption capacity, and a relatively densely packed nonwoven fabric can improve the liquid absorption capacity depending on the tissue.
  • a gauze having a liquid absorption capacity about 2 to 5 times that of cotton gauze can be obtained. Therefore, when used as a wiper during surgery, a relatively small amount of gauze can be sufficiently absorbed by simply applying it without wiping as in the past, so that the affected part can be seen better, and rapid And it will greatly help the progress of certain operations.
  • the surface of internal organs or the like is wiped with the gauze according to the present invention in order to see the affected part better, the surface of the tissue is rarely damaged. Furthermore, since it is composed of only silk fibers, which are animal fibers without impurities, it does not stimulate the internal organs, wounds, etc. even if they come into contact with them. There are few problems. In addition, since it is made of silk fiber, which is a natural material, there is no problem of disposal after use, unlike nonwoven fabric using synthetic fibers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Zoology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Botany (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Materials For Medical Uses (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

Cette invention concerne des fibres de soie qui sont coupées en fibres de courte taille et d'une longueur de 1 à 10 cm, lesquelles fibres permettent de préparer un tissu non tissé par aiguilletage ou enchevêtrement par jet d'eau sans faire appel à un agent de liaison. Ce tissu non tissé possède une capacité d'absorption des liquides satisfaisante, et est assez doux pour ne pas endommager les tissus internes. Ce tissu peut ainsi être utilisé en qualité de fournitures médicales tel que des gazes chirurgicales. Les fibres de soie lavées à fond peuvent être utilisées dans la fabrication de gazes chirurgicales, et les fibres de soie qui ont été ou non lavées à fond peuvent être utilisées dans la fabrication de voiles, etc.
PCT/JP1996/002271 1995-08-11 1996-08-07 Tissu ou soie non tisses pour fournitures medicales WO1997007273A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP7/227133 1995-08-11
JP22713395 1995-08-11
JP35336295 1995-12-28
JP7/353362 1995-12-28

Publications (1)

Publication Number Publication Date
WO1997007273A1 true WO1997007273A1 (fr) 1997-02-27

Family

ID=26527528

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1996/002271 WO1997007273A1 (fr) 1995-08-11 1996-08-07 Tissu ou soie non tisses pour fournitures medicales

Country Status (1)

Country Link
WO (1) WO1997007273A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002051455A2 (fr) * 2000-12-22 2002-07-04 Kimberly-Clark Worldwide, Inc. Elimination de proteases cibles a l'aide de pansements proteiques
WO2002072937A1 (fr) * 2001-03-14 2002-09-19 Japan As Represented By President Of Tokyo University Of Agriculture And Technology Tissu non tisse contenant une fibre ultra-fine de fibroine de soie et/ou de materiau similaire a la soie, et procede de fabrication correspondant
EP1869238A1 (fr) * 2005-04-13 2007-12-26 The Non Woven Silk Fabric Co., Ltd. Procede de fabrication de non-tisse de soie
WO2022009835A1 (fr) 2020-07-07 2022-01-13 三井化学株式会社 Tissu non tissé composite et son procédé de fabrication
US20230212798A1 (en) * 2020-05-28 2023-07-06 Shinwa Corp. Nonwoven Fabric, and Method for Producing Same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837431B2 (ja) * 1980-11-22 1983-08-16 憲雄 道関 平面けんを用いた複合繊維物品
JPH0625956A (ja) * 1992-07-06 1994-02-01 Shizuo Hayashi 絹繊維製不織布とその製造方法
JPH06235154A (ja) * 1993-02-05 1994-08-23 Hiro Internatl:Kk 絹不織布
JPH07189097A (ja) * 1993-11-17 1995-07-25 Shoichi Kamiya 肌当て用品

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837431B2 (ja) * 1980-11-22 1983-08-16 憲雄 道関 平面けんを用いた複合繊維物品
JPH0625956A (ja) * 1992-07-06 1994-02-01 Shizuo Hayashi 絹繊維製不織布とその製造方法
JPH06235154A (ja) * 1993-02-05 1994-08-23 Hiro Internatl:Kk 絹不織布
JPH07189097A (ja) * 1993-11-17 1995-07-25 Shoichi Kamiya 肌当て用品

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002051455A2 (fr) * 2000-12-22 2002-07-04 Kimberly-Clark Worldwide, Inc. Elimination de proteases cibles a l'aide de pansements proteiques
WO2002051455A3 (fr) * 2000-12-22 2002-10-10 Kimberly Clark Co Elimination de proteases cibles a l'aide de pansements proteiques
WO2002072937A1 (fr) * 2001-03-14 2002-09-19 Japan As Represented By President Of Tokyo University Of Agriculture And Technology Tissu non tisse contenant une fibre ultra-fine de fibroine de soie et/ou de materiau similaire a la soie, et procede de fabrication correspondant
EP1869238A1 (fr) * 2005-04-13 2007-12-26 The Non Woven Silk Fabric Co., Ltd. Procede de fabrication de non-tisse de soie
EP1869238A4 (fr) * 2005-04-13 2008-03-19 Non Woven Silk Fabric Co Ltd Procede de fabrication de non-tisse de soie
US20230212798A1 (en) * 2020-05-28 2023-07-06 Shinwa Corp. Nonwoven Fabric, and Method for Producing Same
WO2022009835A1 (fr) 2020-07-07 2022-01-13 三井化学株式会社 Tissu non tissé composite et son procédé de fabrication
KR20230003078A (ko) 2020-07-07 2023-01-05 미쓰이 가가쿠 가부시키가이샤 복합 부직포 및 그의 제조 방법

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