EP0099893B1 - Non-tisse pour compresses medicales - Google Patents

Non-tisse pour compresses medicales Download PDF

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Publication number
EP0099893B1
EP0099893B1 EP83900040A EP83900040A EP0099893B1 EP 0099893 B1 EP0099893 B1 EP 0099893B1 EP 83900040 A EP83900040 A EP 83900040A EP 83900040 A EP83900040 A EP 83900040A EP 0099893 B1 EP0099893 B1 EP 0099893B1
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Prior art keywords
woven according
woven
nonwoven
per unit
unit area
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Expired
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EP83900040A
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German (de)
English (en)
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EP0099893A1 (fr
Inventor
Marcel Holvoet
Bernard Picard
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Kaysersberg SA
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Beghin Say SA
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H5/00Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/06Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by welding-together thermoplastic fibres, filaments, or yarns
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/58Non-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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/60Non-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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H5/00Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/08Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of fibres or yarns
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24058Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
    • Y10T428/24074Strand or strand-portions
    • Y10T428/24091Strand or strand-portions with additional layer[s]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628Nonplanar uniform thickness material
    • Y10T428/24669Aligned or parallel nonplanarities
    • Y10T428/24694Parallel corrugations
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628Nonplanar uniform thickness material
    • Y10T428/24669Aligned or parallel nonplanarities
    • Y10T428/24694Parallel corrugations
    • Y10T428/24702Parallel corrugations with locally deformed crests or intersecting series of corrugations
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/26Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/269Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/27Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]

Definitions

  • the present invention relates to a nonwoven whose curly or wavy structure gives it excellent absorption properties, making it particularly suitable for use as a medical or surgical compress.
  • non-woven compresses are appreciably superior to those produced in gauze, with regard in particular to non-adhesion to wounds, they nevertheless remain far below what is desired as regards the absorption capacity.
  • US Pat. No. 4,001,472 discloses a nonwoven comprising at least one veil of cellulosic fibers reinforced by a nonwoven grid to which it is fixed by means of an adhesive.
  • the veil has a network of compressed zones intended to form connection points with the wires of the grid. The bonded surface being reduced at these points, the blockage of capillary channels through which the liquids diffuse throughout the mass is avoided. This improves the absorption capacity of nonwovens of this type.
  • an adhesive like any chemical binder, in such a product makes it unsuitable for medical use because of the risks of dissolution by disinfectants.
  • this product remains very flat, the apparent thickness coinciding with that of the material.
  • the present invention relates to a nonwoven compatible with medical or surgical use overcoming the defects of traditional nonwovens and gauze. Its particular structure allows to combine properties such as high absorption capacity, non-adhesion to wounds, elasticity and resilience.
  • this nonwoven for medical or surgical compress has a succession of ripples uniformly distributed and whose adjacent bellies are alternately arranged above and below the median plane of the nonwoven and consists of a synthetic grid on one side of which is fixed by thermobonding a web of cellulosic fibers.
  • the contiguous bellies of two neighboring undulations, situated on the same side of the median plane of the nonwoven, are made up of small adjacent pads.
  • Patent FR-A-2 418 819 clearly shows a fibrous product having undulations, but on the one hand, it contains a significant amount of binder making it unsuitable for medical use, on the other hand, the undulations have only 'either a decorative or structural function to improve rigidity.
  • Figure 1 is a top view of a nonwoven (1) which has a machine direction (2), corresponding to the longitudinal direction of production of said nonwoven, and a cross direction (3) perpendicular to the machine direction (2 ).
  • This nonwoven (1) has corrugations or crimps regularly spaced and arranged along lines (5) parallel to the machine direction (2).
  • Figure 2 which is a section of your Figure 1 along AA, plane parallel to the machine direction (2), shows that the nonwoven has undulations (4) whose bellies (6, 7) are alternately above and below its median plane (8).
  • Figure 3 which is a sectional view of Figure 1 along BB, plane perpendicular to the machine direction (2), shows that the contiguous bellies (9, 10) of neighboring corrugations consist of small adjacent pads (11, 12) located on the same side of the median plane (8) of the nonwoven. Behind the cutting plane we see the profile of the pads located below the median plane (8). The height and width of these pads are between 0.1 and 3 mm.
  • FIG. 4 shows a preferred form of the invention: the nonwoven consists of a synthetic grid (13) formed of filaments (15) of a first polymer coated in a sheath of a second polymer and connected by thin strips (16) of the second polymer, grid on one side of which is deposited a web of cellulosic fibers (14).
  • the veil (14) is thermally bonded to the grid (13): thus the nonwoven does not contain any chemical binder and can therefore be used as a medical or surgical compress.
  • the synthetic grid (13) is a bi-stretched grid comprising in the machine direction (2) parallel polyamide filaments (15) regularly spaced by a distance of between 0.1 and 3 mm. and connected together by narrow polypropylene strips (16) regularly spaced by a distance between 0.1 and 3 mm and perpendicular to the filaments (15).
  • the veil (14) of cellulosic fibers consists of a carding veil of cotton fibers.
  • the grid (13) has a grammage between 5 and 15 g / m 2 preferably 7 g / m 2 and the web of cellulosic fibers (14) a grammage between 10 and 20 g / m 2 , preferably 16 g / m 2 .
  • Its apparent density is less than 0.15 - preferably 0.1 - and its absorption capacity is greater than 13 cm 3 / g - preferably 16 cm 3 / g.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Materials For Medical Uses (AREA)
  • Nonwoven Fabrics (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Woven Fabrics (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Liquid Crystal Substances (AREA)
  • Pyrane Compounds (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Description

  • La présente invention concerne un non-tissé dont la structure frisée ou ondulée lui confère d'excellentes propriétés d'absorption permettant notamment son emploi en tant que compresse médicale ou chirurgicale.
  • Actuellement les compresses médicales sont obtenues à partir d'un tissu léger - appelé gaze à pansements - (grammage compris entre 25 et 28 g/m2) dont la fabrication nécessite l'emploi d'un matériel de tissage coûteux et peu performant. Ce tissu est ensuite plié et découpé en plusieurs dimensions : puis, chaque compresse est, en général, enveloppée individuellement et stérilisée.
  • Les compresses en gaze traditionnelle sont des produits très plats, adhérant aux plaies et présentant un coefficient d'absorption des fluides assez faible. En outre, leurs caractéristiques d'élasticité et de résilience sont très nettement insuffisantes.
  • De nombreuses recherches ont visé à remplacer la gaze par des non-tissés obtenus par voie sèche, par voie humide ou par la technique dite « spun-bonded et composés de mélanges de fibres synthétiques et/ou naturelles.
  • Si les propriétés des compresses en non-tissé sont sensiblement supérieures à celles fabriquées en gaze, pour ce qui est notamment de la non-adhérence aux plaies, elles restent cependant très en deçà de ce qui est désiré quant à la capacité d'absorption.
  • On connaît par le brevet US-A-4 001 472 un non-tissé comprenant au moins un voile de fibres cellulosiques renforcé par une grille non-tissée à laquelle il est fixé au moyen d'un adhésif. Le voile présente un réseau de zones comprimées destinées à former des points de liaison avec les fils de la grille. La surface collée étant réduite à ces points, on évite le blocage de canaux capillaires par lesquels les liquides diffusent dans toute la masse. On améliore ainsi la capacité d'absorption des non-tissés de ce type. Cependant l'emploi d'un adhésif, comme de tout liant chimique, dans un tel produit le rend impropre à un usage médical à cause des risques de dissolution par les désinfectants. Par ailleurs ce produit reste très plat, l'épaisseur apparente coïncidant avec celle du matériau.
  • La présente invention concerne un non-tissé compatible avec un usage médical ou chirurgical palliant les défauts des non-tissés et de la gaze traditionnels. Sa structure particulière permet d'allier des propriétés telles que capacité d'absorption élevée, non-adhérence aux plaies, élasticité et résilience.
  • D'une manière générale ce non-tissé pour compresse médicale ou chirurgicale présente une succession d'ondulations uniformément réparties et dont les ventres adjacents sont alternativement disposés au-dessus et au-dessous du plan médian du non-tissé et est constitué d'une grille synthétique sur une des faces de laquelle est fixé par thermoliage un voile de fibres cellulosiques.
  • En particulier, les ventres contigus de deux ondulations voisines, situés d'un même côté du plan médian du non-tissé sont constitués de petits coussinets adjacents.
  • Le brevet FR-A-2 418 819 montre bien un produit fibreux présentant des ondulations mais d'une part, il comporte une quantité notable de liant le rendant impropre à l'usage médical, d'autre part, les ondulations n'ont qu'une fonction soit décorative soit structurale pour améliorer la rigidité.
  • L'invention sera mieux comprise à l'aide des dessins, lesquels représentent des exemples non limitatifs de réalisation du non-tissé :
    • la figure 1 est une vue de dessus du non-tissé,
    • la figure 2 est une vue en coupe de la figure 1 selon un plan parallèle au sens machine du non-tissé,
    • la figure 3 est une vue en coupe de la figure 1 selon un plan perpendiculaire au sens machine du non-tissé,
    • la figure 4 est une vue en perspective d'un non-tissé constitué d'une grille synthétique et d'un voile de fibres cellulosiques.
  • La figure 1 est une vue de dessus d'un non-tissé (1) qui présente un sens machine (2), correspondant au sens longitudinal de production dudit non-tissé, et un sens travers (3) perpendiculaire au sens machine (2).
  • Ce non-tissé (1) comporte des ondulations ou frisures régulièrement espacées et disposées le long de lignes (5) parallèles au sens machine (2).
  • La figure 2 qui est une en coupe de ta figure 1 selon AA, plan parallèle au sens machine (2), montre que le non-tissé présente des ondulations (4) dont les ventres (6, 7) sont alternativement au-dessus et au-dessous de son plan médian (8).
  • La figure 3 qui est une vue en coupe de la figure 1 selon BB, plan perpendiculaire au sens machine (2), montre que les ventres contigus (9, 10) d'ondulations voisines sont constitués de petits coussinets adjacents (11, 12) situés d'un même côté du plan médian (8) du non-tissé. En arrière du plan de coupe on voit le profil des coussinets situés en dessous du plan médian (8). La hauteur et la largeur de ces coussinets sont comprises entre 0,1 et 3 mm.
  • La figure 4 présente une forme préférée de l'invention : le non-tissé est constitué d'une grille synthétique (13) formée de filaments (15) d'un premier polymère enrobés dans une gaine d'un second polymère et reliés par de fines lamelles (16) du second polymère, grille sur une face de laquelle est déposé un voile de fibres cellulosiques (14).
  • Le voile (14) est thermolié à la grille (13) : ainsi le non-tissé ne comporte aucun liant chimique et peut donc être utilisé en tant que compresse médicale ou chirurgicale.
  • Selon une forme préférée de l'invention la grille synthétique (13) est une grille bi-étirée comportant dans le sens machine (2) des filaments de polyamide parallèles (15) régulièrement espacés d'une distance comprise entre 0,1 et 3 mm et reliés entre eux par des bandes étroites de polypropylène (16) régulièrement espacées d'une distance comprise entre 0,1 et 3 mm et perpendiculaires aux filaments (15). Le voile (14) de fibres cellulosiques est constitué d'un voile de carde de fibres de coton.
  • En outre, ce non-tissé présente l'avantage d'être plus léger que la gaze traditionnelle. La grille (13) a un grammage compris entre 5 et 15 g/m2 de préférence 7 g/m2 et le voile de fibres cellulosiques (14) un grammage compris entre 10 et 20 g/m2, de préférence 16 g/m2.
  • Sa densité apparente est inférieure à 0,15 - de préférence 0,1 - et sa capacité d'absorption est supérieure à 13 cm3/g - de préférence 16 cm3/g.
  • Le tableau ci-après donne les résultats de mesures effectuées sur le non-tissé selon l'invention, sur de la gaze traditionnelle et sur un non-tissé de commerce dénommé PELY-TEX :
    Figure imgb0001

Claims (12)

1. Non-tissé (1) pour compresse médicale ou chirurgicale, possédant un sens machine (2) et un sens travers (3) caractérisé en ce qu'il présente une succession d'ondulations (4) uniformément réparties selon des lignes (5) parallèles au sens machine (2) et dont les ventres adjacents (6, 7) sont alternativement disposés au-dessus et au-dessous du plan (8) dudit non-tissé et en ce qu'il est constitué d'une grille synthétique (13) sur une des faces de laquelle est fixé un voile (14) de fibres cellulosiques par thermoliage.
2. Non-tissé selon la revendication 1, caractérisé en ce que les ventres contigus (9, 10) de deux ondulations voisines, situés d'un même côté du plan médian (8) sont constitués de petits coussinets (11, 12) adjacents.
3. Non-tissé selon la revendication 2, caractérisé en ce que la hauteur de chaque coussinet au-dessus du plan médian (8) est comprise entre 0,1 et 3 mm.
4. Non-tissé selon l'une des revendications 2 ou 3, caractérisé en ce que la largeur de chaque coussinet est comprise entre 0,1 et 3 mm.
5. Non-tissé selon l'une des revendications 1 à 4, caractérisé en ce que la grille synthétique (13) est une grille bi-étirée comportant dans le sens machine (2) des filaments de polyamide parallèles (15) régulièrement espacés d'une distance comprise entre 0,1 et 3 mm, reliés entre eux par des bandes étroites de polypropylène (16) régulièrement espacées d'une distance comprise entre 0,1 et 3 mm et perpendiculaires aux filaments (15).
6. Non-tissé selon l'une des revendications 1 ou 5, caractérisé en ce que le voile (14) de fibres cellulosiques est un voile de carde de fibres de coton.
7. Non-tissé selon l'une quelconque des revendications précédentes caractérisé en ce que le grammage de la grille synthétique (13) est compris entre 5 et 15 g/cm2 et en ce que le grammage du voile de fibres cellulosiques est compris entre 10 et 20 g/m2.
8. Non-tissé selon la revendication 7, caractérisé en ce que le grammage de la grille synthétique (13) est de 7 g/m2 et en ce que le grammage du voile de carde de fibres de coton est de 16 g/m2.
9. Non-tissé selon la revendication 8, caractérisé en ce que sa densité apparente est inférieure à 0,15 et son coefficient d'absorption d'eau supérieur à 13 cm3/g.
10. Non-tissé selon la revendication 9, caractérisé en ce que sa densité apparente est de 0,1 et son coefficient d'absorption est de 16 cm3/g.
11. Non-tissé selon la revendication 10, caractérisé en ce que son épaisseur est d'environ 0,24 mm.
12. Compresse médicale fabriquée à partir d'un non-tissé selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle est pliée de façon à ce que la partie destinée à venir en contact avec une plaie, soit constituée de la grille synthétique (13) nue.
EP83900040A 1982-01-29 1982-12-16 Non-tisse pour compresses medicales Expired EP0099893B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83900040T ATE18446T1 (de) 1982-01-29 1982-12-16 Nichtgewebter textilstoff fuer medizinische kompressen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8201392A FR2520766A1 (fr) 1982-01-29 1982-01-29 Non-tisse pour compresses medicales
FR8201392 1982-01-29

Publications (2)

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EP0099893A1 EP0099893A1 (fr) 1984-02-08
EP0099893B1 true EP0099893B1 (fr) 1986-03-05

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US (1) US4546027A (fr)
EP (1) EP0099893B1 (fr)
JP (1) JPS59500101A (fr)
AT (1) ATE18446T1 (fr)
AU (1) AU562547B2 (fr)
BR (1) BR8208056A (fr)
CA (1) CA1224019A (fr)
DE (1) DE3269765D1 (fr)
DK (1) DK169733B1 (fr)
DZ (1) DZ486A1 (fr)
ES (1) ES269428Y (fr)
FI (1) FI74492C (fr)
FR (1) FR2520766A1 (fr)
GR (1) GR77894B (fr)
IE (1) IE53769B1 (fr)
IL (1) IL67670A (fr)
IN (1) IN156677B (fr)
IT (2) IT8352864V0 (fr)
MX (1) MX156789A (fr)
NO (1) NO160150C (fr)
OA (2) OA07293A (fr)
PT (1) PT76150B (fr)
SU (1) SU1271377A3 (fr)
WO (1) WO1983002630A1 (fr)

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US6500539B1 (en) 1998-03-05 2002-12-31 The Regents Of The University Of California Anti-adhesion cellulose acetate wound dressing
US6545197B1 (en) * 1998-05-02 2003-04-08 The Procter & Gamble Company Disposable absorbent article having an improved topsheet
US6867346B1 (en) * 1999-09-21 2005-03-15 Weyerhaeuser Company Absorbent composite having fibrous bands
US6783837B1 (en) 1999-10-01 2004-08-31 Kimberly-Clark Worldwide, Inc. Fibrous creased fabrics
JP3748743B2 (ja) * 1999-10-04 2006-02-22 ユニ・チャーム株式会社 吸収性物品およびその製造方法

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Also Published As

Publication number Publication date
FR2520766A1 (fr) 1983-08-05
WO1983002630A1 (fr) 1983-08-04
JPS59500101A (ja) 1984-01-19
NO160150C (no) 1989-03-15
DK443583D0 (da) 1983-09-28
IL67670A0 (en) 1983-05-15
NO160150B (no) 1988-12-05
BR8208056A (pt) 1984-01-10
AU1019883A (en) 1983-08-12
IE830086L (en) 1983-07-29
CA1224019A (fr) 1987-07-14
FR2520766B1 (fr) 1985-03-22
ES269428Y (es) 1984-01-16
IE53769B1 (en) 1989-02-01
AU562547B2 (en) 1987-06-11
DK169733B1 (da) 1995-01-30
DK443583A (da) 1983-09-28
FI833199A0 (fi) 1983-09-07
FI74492C (fi) 1988-02-08
DZ486A1 (fr) 2004-09-13
DE3269765D1 (en) 1986-04-10
IT1161461B (it) 1987-03-18
ATE18446T1 (de) 1986-03-15
IN156677B (fr) 1985-10-12
PT76150B (fr) 1986-01-24
ES269428U (es) 1983-06-16
NO833517L (no) 1983-09-28
FI74492B (fi) 1987-10-30
MX156789A (es) 1988-10-04
IL67670A (en) 1988-01-31
JPH0160582B2 (fr) 1989-12-25
FI833199A (fi) 1983-09-07
SU1271377A3 (ru) 1986-11-15
OA07293A (fr) 1984-08-31
US4546027A (en) 1985-10-08
EP0099893A1 (fr) 1984-02-08
OA07549A (fr) 1985-03-31
PT76150A (fr) 1983-02-01
IT8352864V0 (it) 1983-01-21
GR77894B (fr) 1984-09-25
IT8367063A0 (it) 1983-01-21

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