WO2006121935A2 - Procede de creation de file - Google Patents

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Publication number
WO2006121935A2
WO2006121935A2 PCT/US2006/017547 US2006017547W WO2006121935A2 WO 2006121935 A2 WO2006121935 A2 WO 2006121935A2 US 2006017547 W US2006017547 W US 2006017547W WO 2006121935 A2 WO2006121935 A2 WO 2006121935A2
Authority
WO
WIPO (PCT)
Prior art keywords
fibers
silver
copper
input
metallized
Prior art date
Application number
PCT/US2006/017547
Other languages
English (en)
Other versions
WO2006121935A3 (fr
Inventor
Nagaraja Satish Chandra
William F. Mcnally
Original Assignee
Noble Biomaterials, Inc.
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 Noble Biomaterials, Inc. filed Critical Noble Biomaterials, Inc.
Priority to US11/920,103 priority Critical patent/US20090025359A1/en
Publication of WO2006121935A2 publication Critical patent/WO2006121935A2/fr
Publication of WO2006121935A3 publication Critical patent/WO2006121935A3/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
    • 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
    • D04H1/4209—Inorganic fibres
    • D04H1/4234—Metal 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
    • D04H1/42—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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/43828—Composite fibres sheath-core
    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • 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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • 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
    • Y10T428/2904—Staple length fiber
    • Y10T428/2907—Staple length fiber with coating or impregnation

Definitions

  • the present invention relates to an antimicrobial, absorbent yarn textile matrix fostering a moist wound-healing environment which minimizes or eliminates the possibility of infection, and is especially useful as a component of a wound dressing.
  • Silver has been used as an antimicrobial since ancient times. It has been used to stop bacterial infections. Recent years have seen a renewed interest in silver. This renewed interest is driven in part by the development of antibiotic- resistant bacteria, such as methicillin-resistant Staphylococcus aureus (MRSA). Conventional antibiotics have little or no effect on these resistant bacteria. Resistant bacteria are especially problematic in wounds, causing infections, destroying tissue, delaying the healing process and causing unpleasant odors. Silver is a broad-spectrum antibiotic that is effective against such resistant bacteria. Even though these bacteria develop resistance to antibiotics, they do not develop resistance to silver. There is a current need for an antibiotic wound care product that uses silver to treat and/or prevent MRSA and other infections caused by resistant bacteria. Silver is also known to exhibit wound-healing properties. Expeditious wound healing benefits the patient by providing increased comfort and decreased susceptibility to further infection and secondary injury. There is a current need for wound care products that utilize silver to increase the rate of wound healing.
  • MRSA methicillin-resistant Staphyloc
  • Silver may be commonly applied in ionic form as a silver salt. Such salts can be irritating to the skin. Moreover, prolonged contact with silver salts can cause argyria, which is characterized by a pronounced, permanent ashen-gray skin discoloration, which can be localized or universal. There currently is a need for a non-irritating silver wound care product that does not rely on silver salts for the delivery of silver ions. There is also a current need for an ionic silver wound care product that does not cause argyria.
  • Silver wound care products that use too much silver would be unduly expensive and wasteful.
  • silver wound care products that use too little silver would be ineffective.
  • Silver is known to affect the operation of matrix metalloproteinases (MMPs). Excessive MMPs are known to interfere with and slow the wound healing process.
  • MMPs matrix metalloproteinases
  • Existing silver-based wound care products inhibit MMPs too much, and also interfere with the wound healing process.
  • a silver wound care product that delivers a proper amount of silver, which limits the activity of MMPs without unduly restricting MMP activity.
  • the present invention may be embodied as a method of manufacturing a textile matrix having improved anti-microbial properties comprising the steps of; a) preparing input fibers [110], the preparation includes the following substeps: i. providing input fibers [113] with a predetermined length range, and ii. metalizing the input fibers [115]; b) carding the metallized fibers [120] by the following sub-steps: i. opening the metallized fibers [121] to separate the individual fibers from each other, ii. blending the metallized fibers [123] with other fibers, iii. orienting the blended fibers [127] in generally the same direction to create a web, and iv.
  • the present invention may also be embodied as a method of manufacturing textile components from an input fiber having improved antimicrobial properties comprising the steps of: a) preparing input fibers [110], the preparation includes the following substeps: i. providing input fibers [113] with a predetermined length range, and ii. metallizing the input fibers [115]; b) carding the metallized fibers [120] by the following sub-steps: i. opening the metallized fibers [121] to separate the individual fibers from each other, ii. blending the metallized fibers [123] with other fibers, iii. orienting the blended fibers [127] in generally the same direction to create a web, and iv. drawing the web [129] to create a sliver having fibers with antimicrobial properties.
  • FIG. 1 is a flowchart showing one embodiment of a process for creating textile components according to the present invention.
  • One embodiment of the present invention is a novel antibiotic textile matrix made of a metallized yarn having absorptive properties that are especially useful in wound care products, such as wound dressings.
  • the textile matrix of the invention includes silver coated fibers.
  • the silver coated fibers may be manufactured as described in U.S. Patent U.S. Patent 4,042,737, entitled “Process For Producing Crimped Metal-Coated Filamentary Materials, And Yarns And Fabrics Obtained Therefrom,” issued to Rohm and Haas Company (Philadelphia, PA), on August 16, 1977, hereby incorporated by reference as if set forth in its entirety herein. Similar fibers are commercially available from Noble Fiber Technologies sold under the tradename X-static ® .
  • Copper has been known and proven to be a very effective anti-fungal agent and also has other anti-microbial properties. It is also very ductile and can be used to metallize a surface of a textile substrate. The combination of silver with copper is very effective in providing not only anti-bacterial, but also antifungal properties.
  • Silver-coated fibers such as the X-Static ® product, can be copper coated using conventional electrodeless copper chemistry. Zinc-coated fibers can also be incorporated into the textile matrix. In addition to providing an antimicrobial effect, the addition of the metallized fibers also reduce physical adherence of the dressing to the wound site.
  • This reduced physical adherence reduces the amount that a wound dressing sticks to, and pulls on the wound and making the dressing more comfortable to wear.
  • the reduced adherence also decreases pain and discomfort when the dressing is removed or replaced.
  • the preferred substrate of the silver-coated fiber is nylon.
  • the following table describes the preferred characteristics of the metallized fibers:
  • the textile matrix of the present invention is spun yam using fibers of the length, denier per fiber and silver to copper ratio as specified in the table above.
  • the desirable antimicrobial properties and efficacy of the textile matrix are determined using the Dow Corning Shake Flask Test over 24 hours of the New NY State 63 Test for Bacteriostatic Activity. Other tests included, but are not limited to ASTM E-2149 for a time period ranging from 10 minutes to 7 days.
  • the kill rate is not less than about 70%. More preferably the kill rate is not less than about 85%, and ideally the kill rate is not less than about 95%.
  • the present invention can also be used for other applications such as being woven into material for odor prevention, socks for athlete's foot prevention and into bedding liners to kill dust mites, etc.
  • Manufacturing the textile matrix involves preparing the input fiber, carding the fiber (includes sub-steps: opening the silver-coated fiber, blending and orienting the fiber, cross-lapping the fiber) and optionally, needl e punching the web.
  • Manufacturing a sliver involves preparing the input fiber, carding the fiber (includes sub-steps: opening the silver-coated fiber, blending and orienting the fiber, drawing the fiber) and optionally roving to further condense the fiber. Each of these steps is described in the ensuing text.
  • FIG. 1 the steps of the manufacturing process according to one embodiment of the present invention are shown.
  • step 110 the metal coated fiber is prepared.
  • One such method is that described in U.S. Patent 4,042,737, referenced above.
  • the metallized fiber is preferably manufactured in the form of a continuous filament and then cut into short segments having lengths as described above.
  • the inventors have surprisingly discovered that by using cut yarn, rather than staple fiber, the properties of the final product are dramatically improved.
  • the fibers are significantly easier to metallize in the manufacturing process because there is less clumping (adhesion to itself) of fibers. The inventors believe that this improvement is facilitated by the general axial alignment of the fibers after they ⁇ are cut, relative to the random orientation of the fibers that result from coating staple product.
  • Another factor that helps prevent clumping is the manufacture of the short fibers from long fibers after aqueous processing, as opposed to processing short (staple) fibers and allowing them to dry together.
  • Copper-coated yarn is prepared by using commercially available copper chemistry applied to silver-coated fibers. 2. Carding
  • step 120 carding is accomplished using a traditional carding process.
  • a preferred carding machine is the Bematic card, manufactured by Bettarinj & Serafirij Sari. (Prato, Italy).
  • Carding blends the fibers together and orients them in generally the same direction, i.e., generally parallel. Carding includes the following sub-steps:
  • the metallized fibers are opened.
  • the silver-coated fiber is processed wet and subsequently dried, it clumps together (though not to the same extent as staple fiber that is processed and then dried).
  • the fiber is opened, to separate the individual staple fibers from each other to enable it to be blended with the alginate.
  • the silver-coated fiber and the absorbent fiber are then blended in step 123 and oriented in step 127 to create a web.
  • the blended fibers may be opened in step 125.
  • step 129 the output of above steps is drawn to create a sliver having absorbent and antimicrobial properties.
  • the sliver may optionally be put through a roving process in step 140.
  • step 150 the manufactured sliver is spun onto a bobbin to be knit, woven, etc. in a traditional textile operation.
  • step of cross-lapping the Fiber, step 128 and needle punching the web, step 130 may be employed as is known in the prior art to result in a textile matrix.
  • the percentage of metallized fiber, such as the X-Static ® product used in the textiles typically range from 2% to 25% by weight, but overall from 1% to 75% of the spun yarn by weight.
  • the jar was shaken vigorously for about 1 minute. Serial dilutions were made and placed on AATCC bacteriostasis agar. Plates containing the agar were then incubated for 24-48 hours at 37° C. The percentage reduction of inoculum by samples and controls was calculated.
  • the textile matrix may include additional fibers other than the silver-coated fibers and absorptive fibers.
  • additional fibers include cotton, cellulose, polyester, acrylic and nylon.
  • Other Therapeutic Agents include cotton, cellulose, polyester, acrylic and nylon.
  • the textile matrix of the invention may also include other antibiotics, such as doxycycline or other topical antibiotics.
  • the textile matrix may also include hormone treatments, such as estrogen, to facilitate wound healing.
  • antibiotics and hormones may be used in conjunction with the textile matrix as described in U.S. Patent 5,914,124.
  • the textile matrix may also include fibers, particles or similar substrates coated with antibiotic (e.g., anti-microbial, anti -bacterial, and/or anti-fungal) metals, such as copper and/or zinc.
  • antibiotic e.g., anti-microbial, anti -bacterial, and/or anti-fungal
  • a preferred combination textile matrix product includes silver-coated fibers and copper-coated fibers.
  • Another preferred combination textile matrix product includes silver- coated fibers and zinc-coated fibers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Materials For Medical Uses (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

Selon l'invention, des fibres d'entrée destinées à être utilisées pour la fabrication de composants textiles sont coupées à une longueur appropriée (113). Les fibres sont métallisées (115) à l'aide d'argent et de cuivre. Les fibres métallisées sont ouvertes (121) et mélangées (123) à d'autres fibres. Les fibres mélangées sont de préférence réouvertes (125). Ensuite, les fibres mélangées sont orientées (127) et étirées (129) de manière à obtenir un ruban. Un boudinage (140) peut être appliqué au ruban afin de condenser les fibres. La longueur des fibres, le denier des fibres, la quantité de revêtement métallique et la composition du revêtement métallique sont sélectionnés pour libérer une quantité optimale de décharge d'ions métalliques de manière à obtenir les propriétés antimicrobiennes appropriées, tout en optimisant les propriétés cicatrisantes et en réduisant au minimum les coûts de fabrication.
PCT/US2006/017547 2005-05-10 2006-05-08 Procede de creation de file WO2006121935A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/920,103 US20090025359A1 (en) 2005-05-10 2006-05-08 Process for creating spun yarn

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67954305P 2005-05-10 2005-05-10
US60/679,543 2005-05-10

Publications (2)

Publication Number Publication Date
WO2006121935A2 true WO2006121935A2 (fr) 2006-11-16
WO2006121935A3 WO2006121935A3 (fr) 2008-02-07

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PCT/US2006/017547 WO2006121935A2 (fr) 2005-05-10 2006-05-08 Procede de creation de file

Country Status (2)

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US (1) US20090025359A1 (fr)
WO (1) WO2006121935A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010014723U1 (de) 2010-07-14 2011-11-10 Gebr. Becker Gmbh Textiler mikrobieller Speicher
EP2572737A1 (fr) 2011-09-26 2013-03-27 BSN Medical GmbH Pansement pour plaies amélioré
EP2674523A2 (fr) 2012-06-14 2013-12-18 Christian Lauke Réservoir microbicide

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9220636B2 (en) 2012-01-10 2015-12-29 Vive Wear Llc Sock for treatment of foot and leg wounds, methods of use and manufacture
US10064273B2 (en) 2015-10-20 2018-08-28 MR Label Company Antimicrobial copper sheet overlays and related methods for making and using
US9387125B1 (en) 2016-01-26 2016-07-12 Vive Wear Llc Sock for treatment of foot and leg wounds, methods of use and manufacture

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907678A (en) * 1954-03-23 1959-10-06 Heberlein Patent Corp Process of producing metallizing effects on textiles
US3646749A (en) * 1969-12-24 1972-03-07 King Seeley Thermos Co Machine-washable metallized fibrous article and method of making same
US3666550A (en) * 1968-05-24 1972-05-30 Teijin Ltd Textile materials having durable antistatic properties
US3686019A (en) * 1968-10-24 1972-08-22 Asahi Kogyo Co Ltd Process for the manufacture of fibrous mixtures having superior antistatic characteristics
US4042737A (en) * 1973-11-14 1977-08-16 Rohm And Haas Company Process for producing crimped metal-coated filamentary materials, and yarns and fabrics obtained therefrom

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934066A (en) * 1957-05-11 1960-04-26 Lohmann Kg Metallized bandaging material especially for the treatment of wounds
US4933129A (en) * 1988-07-25 1990-06-12 Ultrafibre, Inc. Process for producing nonwoven insulating webs
US6087549A (en) * 1997-09-22 2000-07-11 Argentum International Multilayer laminate wound dressing
DE19617634A1 (de) * 1996-05-02 1997-11-06 Basf Ag Flammfeste Gewebe auf der Basis von Melamin-Harzfasern
US6132866A (en) * 1998-01-28 2000-10-17 E. I. Du Pont De Nemours And Company Yarn blend for friction applications
CA2510151C (fr) * 2001-12-20 2012-04-17 Noble Fiber Technologies Pansements contenant de l'argent

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907678A (en) * 1954-03-23 1959-10-06 Heberlein Patent Corp Process of producing metallizing effects on textiles
US3666550A (en) * 1968-05-24 1972-05-30 Teijin Ltd Textile materials having durable antistatic properties
US3686019A (en) * 1968-10-24 1972-08-22 Asahi Kogyo Co Ltd Process for the manufacture of fibrous mixtures having superior antistatic characteristics
US3646749A (en) * 1969-12-24 1972-03-07 King Seeley Thermos Co Machine-washable metallized fibrous article and method of making same
US4042737A (en) * 1973-11-14 1977-08-16 Rohm And Haas Company Process for producing crimped metal-coated filamentary materials, and yarns and fabrics obtained therefrom

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010014723U1 (de) 2010-07-14 2011-11-10 Gebr. Becker Gmbh Textiler mikrobieller Speicher
EP2572737A1 (fr) 2011-09-26 2013-03-27 BSN Medical GmbH Pansement pour plaies amélioré
WO2013045494A1 (fr) 2011-09-26 2013-04-04 Bsn Medical Gmbh Pansement pour plaie perfectionné
EP2572737B1 (fr) 2011-09-26 2016-03-23 BSN Medical GmbH Pansement pour plaies amélioré
EP3072533A1 (fr) 2011-09-26 2016-09-28 BSN Medical GmbH Pansement pour plaies amélioré
EP2674523A2 (fr) 2012-06-14 2013-12-18 Christian Lauke Réservoir microbicide
DE102012210051A1 (de) 2012-06-14 2013-12-19 Christian Lauke Mikrobizider Speicher

Also Published As

Publication number Publication date
US20090025359A1 (en) 2009-01-29
WO2006121935A3 (fr) 2008-02-07

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