CA2461729A1 - Antimicrobially-treated fabrics - Google Patents

Antimicrobially-treated fabrics Download PDF

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Publication number
CA2461729A1
CA2461729A1 CA002461729A CA2461729A CA2461729A1 CA 2461729 A1 CA2461729 A1 CA 2461729A1 CA 002461729 A CA002461729 A CA 002461729A CA 2461729 A CA2461729 A CA 2461729A CA 2461729 A1 CA2461729 A1 CA 2461729A1
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CA
Canada
Prior art keywords
antimicrobially
antimicrobial agent
treated
fibrous material
cellulosic fibrous
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.)
Granted
Application number
CA002461729A
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French (fr)
Other versions
CA2461729C (en
Inventor
James W. Clark
Shawn E. Jenkins
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Kimberly Clark Worldwide Inc
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Individual
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Filing date
Publication date
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Publication of CA2461729A1 publication Critical patent/CA2461729A1/en
Application granted granted Critical
Publication of CA2461729C publication Critical patent/CA2461729C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/005—Mechanical treatment
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N55/00—Biocides, pest repellants or attractants, or plant growth regulators, containing organic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen and sulfur
    • 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
    • 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
    • D04H1/72—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 randomly arranged
    • D04H1/732—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 randomly arranged by fluid current, e.g. air-lay
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/46—Compounds containing quaternary nitrogen atoms
    • D06M13/463—Compounds containing quaternary nitrogen atoms derived from monoamines
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
    • D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
    • D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
    • 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
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • 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
    • D06M17/00—Producing multi-layer textile fabrics
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D21H23/06—Controlling the addition
    • D21H23/14—Controlling the addition by selecting point of addition or time of contact between components
    • D21H23/16—Addition before or during pulp beating or refining
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents

Abstract

A method for forming an antimicrobially-treated fabric is provided. The meth od includes forming a solution from a liquid and an antimicrobial agent, such a s 3-(trimethoxysilyl)propyloctadecyldimethyl ammonium chloride. In one embodiment, a cellulosic fibrous material is combined with a solution while in the pulper to form a liquid suspension such that the antimicrobial agent becomes substantive to the cellulosic fibrous material. A web is formed from the antimicrobially-treated cellulosic fibrous material such that substantially all of the cellulosic fibrous material present within the web is derived from the antimicrobially-treated cellulosic fibrous material. In one embodiment, the web of antimicrobially-treated fibrous material is also hydraulically entangled with a nonwoven substrate. In some embodiments, when dried, the antimicrobial agent forms a covalent bond with the cellulosic fibrous material.

Claims (36)

1. A method for forming an antimicrobially-treated fabric, said method comprising:
forming a solution from a liquid and an antimicrobial agent;
combining a cellulosic fibrous material with said solution to form a liquid suspension, wherein said antimicrobial agent becomes substantive to said cellulosic fibrous material after being combined therewith; and forming a web from said liquid suspension of said antimicrobially-treated cellulosic fibrous material such that substantially all of the cellulosic fibrous material present within said web is derived from said antimicrobially-treated cellulosic fibrous material.
2. A method as defined in claim 1, wherein at least a portion of said liquid from said liquid suspension is removed during formation of said web, said removed liquid portion being substantially free from said antimicrobial agent.
3. A method as defined in claim 1, wherein said antimicrobial agent is an organosilicone quaternary ammonium compound.
4. A method as defined in claim 3, wherein said organosilicone quaternary ammonium compound has the following structure:

wherein, R1 is hydrogen or a C1-C8 alkyl group;
R2 is hydrogen or a C1-C8 alkyl group;
R3 and R4 are the same or different, and are selected from the group consisting of hydrogen and a C1-C4 alkyl group;
R5 is hydrogen or a C1-C30 alkyl group; and X- is a suitable counterion.
5. A method as defined in claim 1, wherein said antimicrobial agent is 3-(trimethoxysilyl)propyloctadecyldimethyl ammonium chloride.
6. A method as defined in claim 1, wherein said antimicrobial agent is hydrolyzed prior to forming said solution.
7. A method as defined in claim 1, wherein said solution and said cellulosic fibrous material are combined in a pulper.
8. A method as defined in claim 7, wherein said solution and said cellulosic fibrous material are subjected to agitation while in said pulper.
9. A method as defined in claim 1, wherein said antimicrobial agent is present in an amount between about 0.04% to about 1.0% by weight of said antimicrobially-treated cellulosic fibrous material.
10. A method as defined in claim 1, wherein said antimicrobial agent is present in an amount between about 0.2% to about 0.5% by weight of said antimicrobially-treated cellulosic fibrous material.
11. A method as defined in claim 1, wherein said cellulosic fibrous material comprises high-average length pulp fibers, low-average length pulp fibers, or mixtures thereof.
12. A method as defined in claim 1, further comprising hydraulically entangling said web of antimicrobially-treated fibrous material with a nonwoven substrate.
13. A method as defined in claim 12, wherein said nonwoven substrate is formed from continuous filaments.
14. A method as defined in claim 13, wherein said continuous filaments are formed by a spunbond process.
15. A method as defined in claim 1, further comprising drying said web so that said antimicrobial agent forms a covalent bond with said cellulosic fibrous material.
16. A method as defined in claim 15, wherein said antimicrobial agent is an organosilicone compound such that said covalent bond is a siloxane bond.
17. A method for forming an antimicrobially-treated fabric, said method comprising:
forming a solution from a liquid and an antimicrobial agent, said antimicrobial agent being an organosilicone quaternary ammonium compound;

combining pulp fibers with said solution to form a liquid suspension while under agitation, wherein said organosilicone quaternary ammonium compound becomes substantive to said pulp fibers after being combined therewith;
forming a web from said liquid suspension of said antimicrobially-treated cellulosic fibrous material such that substantially all of the cellulosic fibrous material present within said web is derived from said antimicrobially-treated cellulosic fibrous material hydraulically entangling said web of antimicrobially-treated pulp fibers with a nonwoven substrate; and drying said web so that said antimicrobial agent forms a covalent bond with pulp fibers.
18. A method as defined in claim 17, wherein said covalent bond is a siloxane bond.
19. A method as defined in claim 17, wherein at least a portion of said liquid from said liquid suspension is removed during formation of said web, said removed liquid portion being substantially free from said antimicrobial agent.
20. A method as defined in claim 17, wherein said organosilicone quaternary ammonium compound has the following structure:

wherein, R1 is hydrogen or a C1-C8 alkyl group;
R2 is hydrogen or a C1-C8 alkyl group;
R3 and R4 are the same or different, and are selected from the group consisting of hydrogen and a C1-C4 alkyl group;
R5 is hydrogen or a C1-C30 alkyl group; and X- is a suitable counterion.
21. A method as defined in claim 17, wherein said antimicrobial agent is 3-(trimethoxysilyl)propyloctadecyldimethyl ammonium chloride.
22. A method as defined in claim 17, wherein said solution and said pulp fibers are combined in a pulper.
23. A method as defined in claim 17, wherein said nonwoven substrate is formed from continuous filaments.
24. A method as defined in claim 23, wherein said continuous filaments are formed by a spunbond process.
25. An antimicrobially-treated composite fabric comprising a nonwoven continuous filament substrate hydraulically entangled with pulp fibers, wherein substantially all of the pulp fibers present within the composite material are treated with an organosilicone antimicrobial agent.
26. An antimicrobially-treated composite fabric as defined in claim 25, wherein said antimicrobial agent is an organosilicone quaternary ammonium compound.
27. An antimicrobially-treated composite fabric as defined in claim 25, wherein said organosilicone quaternary ammonium compound has the following structure:

wherein, R1 is hydrogen or a C1-C8 alkyl group;
R2 is hydrogen or a C1-C8 alkyl group;
R3 and R4 are the same or different, and are selected from the group consisting of hydrogen and a C1-C4 alkyl group;
R5 is hydrogen or a C1-C30 alkyl group; and X- is a suitable counterion.
28. An antimicrobially-treated composite fabric as defined in claim 25, wherein said antimicrobial agent is 3-(trimethoxysilyl)propyloctadecyldimethyl ammonium chloride.
29. An antimicrobially-treated composite fabric as defined in claim 25, wherein said organosilicone antimicrobial agent comprises between about 0.04%
to about 1.0% by weight of said pulp fibers.
30. An antimicrobially-treated composite fabric as defined in claim 25, wherein said organosilicone antimicrobial agent comprises between about 0.2%
to about 0.5% by weight of said pulp fibers.
31. An antimicrobially-treated composite fabric as defined in claim 25, wherein said continuous filaments are formed by a spunbond process.
32. An antimicrobially-treated composite fabric as defined in claim 25, wherein said pulp fibers comprises between about 60% to about 90% by weight of said composite fabric.
33. An antimicrobially-treated composite fabric as defined in claim 25, wherein said organosilicone antimicrobial agent comprises between about 0.03%
to about 0.8% by weight of said composite fabric.
34. An antimicrobially-treated composite fabric as defined in claim 25, wherein said organosilicone antimicrobial agent comprises between about 0.16%
to about 0.4% by weight of said composite fabric.
35. An antimicrobially-treated composite fabric as defined in claim 25, wherein said organosilicone antimicrobial agent is covalently bonded to said pulp fibers.
36. An antimicrobially-treated composite fabric as defined in claim 35, wherein the covalent bond formed between said organosilicone antimicrobial agent and said pulp fibers is a siloxane bond.
CA2461729A 2001-10-12 2002-08-06 Antimicrobially-treated fabrics Expired - Lifetime CA2461729C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/976,676 US6712121B2 (en) 2001-10-12 2001-10-12 Antimicrobially-treated fabrics
US09/976,676 2001-10-12
PCT/US2002/024912 WO2003032726A1 (en) 2001-10-12 2002-08-06 Antimicrobially-treated fabrics

Publications (2)

Publication Number Publication Date
CA2461729A1 true CA2461729A1 (en) 2003-04-24
CA2461729C CA2461729C (en) 2011-03-29

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CA2461729A Expired - Lifetime CA2461729C (en) 2001-10-12 2002-08-06 Antimicrobially-treated fabrics

Country Status (17)

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US (2) US6712121B2 (en)
EP (1) EP1439751B1 (en)
JP (1) JP2005536645A (en)
AR (1) AR036762A1 (en)
AU (1) AU2002319773B2 (en)
BR (1) BRPI0212937B1 (en)
CA (1) CA2461729C (en)
EG (1) EG23368A (en)
GT (1) GT200200209A (en)
MX (1) MXPA04002665A (en)
PA (1) PA8553501A1 (en)
PE (1) PE20030525A1 (en)
RU (1) RU2004109589A (en)
SV (1) SV2004001290A (en)
UY (1) UY27483A1 (en)
WO (1) WO2003032726A1 (en)
ZA (1) ZA200402457B (en)

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