WO2003066957A1 - Anti-microbial fabric treatment - Google Patents
Anti-microbial fabric treatment Download PDFInfo
- Publication number
- WO2003066957A1 WO2003066957A1 PCT/EP2003/000891 EP0300891W WO03066957A1 WO 2003066957 A1 WO2003066957 A1 WO 2003066957A1 EP 0300891 W EP0300891 W EP 0300891W WO 03066957 A1 WO03066957 A1 WO 03066957A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polymer
- groups
- amino
- aqueous solution
- quaternary amino
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/22—Effecting variation of dye affinity on textile material by chemical means that react with the fibre
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/02—Alkyl or cycloalkyl ethers
- C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
- C08B11/14—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with nitrogen-containing groups
- C08B11/145—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with nitrogen-containing groups with basic nitrogen, e.g. aminoalkyl ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H1/00—Macromolecular products derived from proteins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H1/00—Macromolecular products derived from proteins
- C08H1/06—Macromolecular products derived from proteins derived from horn, hoofs, hair, skin or leather
-
- 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
- D06M13/10—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 oxygen
- D06M13/11—Compounds containing epoxy groups or precursors thereof
-
- 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
- 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
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/22—Effecting variation of dye affinity on textile material by chemical means that react with the fibre
- D06P5/225—Aminalization of cellulose; introducing aminogroups into cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2650/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G2650/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterized by the type of post-polymerisation functionalisation
- C08G2650/06—Epoxy-capping
Definitions
- the invention relates to a method of modifying polymers so as to impart an antimicrobial finish to fabrics or other polymeric materials and to the modified polymers produced thereby.
- An alternative approach is to modify the polymer of the fibre with a reactive compound, which is capable of introducing a bactericidal site into the polymer molecule.
- the main commercial product embodying this principle is a quaternised alkylamino silane, of the type described in US 4 504 541. This product is unstable in water and has to be supplied as a solution in methanol, giving rise to serious health, safety and environmental concerns. Moreover, the product tends to make the fabric hydrophobic, which is undesirable for many applications.
- quaternary alkylamino-2-hydroxy-3-chloropropanes which may be obtained from the acid catalysed reaction of epichlorhydrin with tertiary amines, form stable aqueous solutions under acidic or neutral conditions, which are capable of reacting with the free amino or carboxy groups of protein or polyamide fibres at elevated temperatures. Moreover, they are converted at alkaline pH to epoxides, which react with polymers having epoxy-reactive groups, e.g. hydroxyl-containing polymers.
- polymers modified by the above reactions exhibit strong and lasting anti-microbial properties:
- the invention provides a polymer modified by the incorporation into the molecule thereof of quaternary amino-2-hydroxypropyl- 3 groups.
- our invention provides a method of modifying a polymer having epoxy- reactive groups, which comprises contacting it with an aqueous solution of a quaternary amino-2,3-epoxypropane.
- the invention provides a method of modifying a polymer having free carboxy and / or amino groups, which comprises contacting it with an aqueous solution of a quaternary amino-2-hydroxy-3- chloropropane.
- R, R' and R" are organic groups, which may be the same or different.
- R is an aliphatic group and more preferably a linear or branched chain group, or mixture of groups, having from 6 to 30 carbon atoms, preferably at least 10, more preferably at least 12, most preferably at least 14, but preferably less than 25, more preferably less than 22, most preferably less than 20 carbon atoms.
- R is preferably an alkyl group, but may, optionally be, for example, an alkenyl, polypropoxy, alkylpolyethoxy, alkenylpolyethoxy, polypropoxypolyethoxy or alkylamidopropyl group.
- R' and R" can be the same or different. Either, but preferably not both, could, for example be the same as R, or a benzyl group. However, they are each preferably alkyl or hydroxyalkyl groups with less than five carbon atoms, especially methyl groups, or optionally ethyl or hydroxyethyl groups.
- the polymer is preferably a natural or synthetic fibre, or woven or unwoven fabric manufactured therefrom, especially a cellulosic fibre such as cotton, linen, cellulose acetate or viscose.
- hydroxy-containing polymers normally require a pH high enough to form the aminopropylene oxide in order to react to a commercially acceptable extent
- the fibre may alternatively be a protein, such as wool, silk or casein, or a polyamide.
- Other polymeric materials, which may be treated, include collagen.
- the polymer may, for example, comprise the collagenous and/ or keratinous integuments of animals, e.g. skins, including the skins of mammals, reptiles, fishes or birds, fleeces, woolskins, plumage or leather obtained by tanning any of the foregoing.
- Protein polymers may be damaged by the high pH needed to form the epoxide, but react readily when heated with its amino-2-hydroxy-3-chloropropane precursor.
- the aminopropylene oxide is unstable to storage, being slowly hydrolysed to the corresponding aminopropylene glycol.
- the reagent is therefore preferably formed in situ or immediately prior to use by basif ⁇ cation of the amino-2-hydroxy-3-chloro propane.
- the latter may be prepared by reacting epichlorhydrin with tertiary amine in acid solution.
- the solution is preferably maintained at a pH below 7, e.g. 4 to 6.
- the counter ion of the cationic quaternary amino group is not critical. It will normally be chloride, but could be any other anion, preferably of a strong mineral acid, that does not adversely affect the product.
- the reagent may be applied to a polymer as the acid solution and then basified, if necessary. Alternatively the solution may be basified immediately prior to contacting with the substrate to be treated.
- the pH is raised above 7.5, more preferably above 8, most preferably above 9, especially above 10, typically above 11, e.g. 12 to 13.5.
- the pH is preferably raised close to, but preferably not above, neutral, e.g. 6 to 7.
- Basification is preferably effected by adding alkali such as sodium hydroxide, or any obvious equivalent, such as potassium or ammonium hydroxide.
- the concentration of active ingredient in the solution is preferably greater than 5% by weight, more preferably greater than 10%, even more preferably greater than 15%, more preferably still, greater than 20%, most preferably greater than 25%, e.g. greater than 30%, and up to saturation.
- the reagent is preferably applied at a loading of at least 0.5%, more preferably at least 1%, even more preferably a least 1.5%, most preferably at least 2%, but preferably less than 10%, more preferably less than 5% even more preferably less than 3%, most preferably less than 2.5% by weight based on dry weight of polymer.
- the reagent is applied to cloth at the mercerising stage, thereby avoiding the introduction of an additional step in the manufacturing process.
- the cloth is preferably treated for from 1 to 20, e.g.2 to 10, especially 3 to7 minutes at elevated temperatures, preferably above 50°C, more preferably above 60°C, most preferably above 70 °C, e.g. above 80°C. It is especially preferred, particularly when treating proteins, to heat to temperatures above 100°C, e.g. 110 to 160°C.
- the reagent may be used in conjunction with compatible surfactants, such as amine oxides, e.g. in conventional concentrations.
- the invention is of particular value in the production of textiles for medical use, such as hospital uniforms, surgical masks, gowns and drapes, sutures bandages and dressings, carpeting and upholstery, bed linen, underwear, socks and air filters. It is also of value for wet wipes for domestic and personal care applications.
- a particular advantage of the invention is that the treated fibres or fabric exhibit improved uptake of certain dyes, especially anionic dyes, from dyebaths.
- a further aspect of the invention therefore provides a method of dyeing in which the substrate comprises a polymer having epoxy-reactive groups, which is contacted with a quaternary amino- 2,3-epoxypropane, and subsequently with an anionic dyebath.
- the invention is of value in the treatment of leather.
- the reagent is applied as, or as part of, the tannage, e.g. in conjunction with syntans, vegetable tannages or mineral tannages such as chrometan.
- Cotton fabric was impregnated with the alkaline solution at an application rate of 2.3% active matter, based on the dry weight of cloth. The fabric was passed through a pad mangle to give 60% uptake and heated to 140°C over a period of five minutes. After treatment the cloth was boiled in 5g/l aqueous C 12-18 alkyl dimethyl amine oxide and rinsed. The treated cloth exhibited excellent antimicrobial activity, which was retained after washing in boiling water.
- Example 2 was repeated except that the pH of the liquor was maintained throughout the treatment by adding 47% NaOH to the liquor as required.
- the treated cloth exhibited excellent antimicrobial activity, giving 99.9% reduction in the antimicrobial performance test.
- Example 4
- Example 2 was repeated except that the liquor also contained 1% C ⁇ 2 -C ⁇ 8 alkyl dimethyl amine oxide.
- the treated cloth exhibited excellent antimicrobial activity, giving 95.5% reduction in the antimicrobial performance test.
- the antimicrobial performance test used in the foregoing examples measured the percentage reduction in optical density of a suspension of approximately one million counts of Klebsiella pneumoniae after one hour's contact
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03704490A EP1478800A1 (en) | 2002-02-06 | 2003-01-29 | Anti-microbial fabric treatment |
US10/504,005 US20050115007A1 (en) | 2002-02-06 | 2003-01-29 | Anti-microbial fabric treatment |
AU2003206796A AU2003206796A1 (en) | 2002-02-06 | 2003-01-29 | Anti-microbial fabric treatment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0202723.3 | 2002-02-06 | ||
GBGB0202723.3A GB0202723D0 (en) | 2002-02-06 | 2002-02-06 | Anti-microbial fabric treatment |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003066957A1 true WO2003066957A1 (en) | 2003-08-14 |
Family
ID=9930499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/000891 WO2003066957A1 (en) | 2002-02-06 | 2003-01-29 | Anti-microbial fabric treatment |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050115007A1 (en) |
EP (1) | EP1478800A1 (en) |
AU (1) | AU2003206796A1 (en) |
GB (1) | GB0202723D0 (en) |
WO (1) | WO2003066957A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109183410B (en) * | 2018-07-24 | 2019-10-25 | 中国农业科学院麻类研究所 | A kind of Chinese fiber crops antibacterial fiber material and its application |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1098404A (en) * | 1964-05-23 | 1968-01-10 | Bayer Ag | Anti-electrostatic process |
GB1236882A (en) * | 1968-09-25 | 1971-06-23 | Manuf De Prod Chim Protex | Improvement in methods of dyeing and printing textile fibres |
FR2470185A1 (en) * | 1979-11-20 | 1981-05-29 | Protex Manuf Prod Chimiq | Treatment of polyamide fibres with glycidyl-ammonium salt - to increase affinity for dyes |
US4369037A (en) * | 1980-11-19 | 1983-01-18 | Kao Soap Co., Ltd. | Hair treatment cosmetics containing cationic keratin derivatives |
EP0212209A1 (en) * | 1985-07-29 | 1987-03-04 | Koken Company Limited | A production process of an antithrombogenic and antiadhesive material for medical use |
EP0310787A2 (en) * | 1987-10-03 | 1989-04-12 | Degussa Aktiengesellschaft | Process for preparating cellulose ethers containing tertiary or quaternary nitrogen |
WO1992019652A1 (en) * | 1991-05-03 | 1992-11-12 | Società Consortile Ricerche Angelini S.P.A. | Cationic polysaccharides |
EP0574151A1 (en) * | 1992-05-22 | 1993-12-15 | The Dow Chemical Company | Process for improving the dyeability of fabrics and fibers |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4897499A (en) * | 1981-08-07 | 1990-01-30 | Rohm And Haas Company | Oil soluble quaternary ammonium monomers |
-
2002
- 2002-02-06 GB GBGB0202723.3A patent/GB0202723D0/en not_active Ceased
-
2003
- 2003-01-29 EP EP03704490A patent/EP1478800A1/en not_active Withdrawn
- 2003-01-29 AU AU2003206796A patent/AU2003206796A1/en not_active Abandoned
- 2003-01-29 WO PCT/EP2003/000891 patent/WO2003066957A1/en not_active Application Discontinuation
- 2003-01-29 US US10/504,005 patent/US20050115007A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1098404A (en) * | 1964-05-23 | 1968-01-10 | Bayer Ag | Anti-electrostatic process |
GB1236882A (en) * | 1968-09-25 | 1971-06-23 | Manuf De Prod Chim Protex | Improvement in methods of dyeing and printing textile fibres |
FR2470185A1 (en) * | 1979-11-20 | 1981-05-29 | Protex Manuf Prod Chimiq | Treatment of polyamide fibres with glycidyl-ammonium salt - to increase affinity for dyes |
US4369037A (en) * | 1980-11-19 | 1983-01-18 | Kao Soap Co., Ltd. | Hair treatment cosmetics containing cationic keratin derivatives |
EP0212209A1 (en) * | 1985-07-29 | 1987-03-04 | Koken Company Limited | A production process of an antithrombogenic and antiadhesive material for medical use |
EP0310787A2 (en) * | 1987-10-03 | 1989-04-12 | Degussa Aktiengesellschaft | Process for preparating cellulose ethers containing tertiary or quaternary nitrogen |
WO1992019652A1 (en) * | 1991-05-03 | 1992-11-12 | Società Consortile Ricerche Angelini S.P.A. | Cationic polysaccharides |
EP0574151A1 (en) * | 1992-05-22 | 1993-12-15 | The Dow Chemical Company | Process for improving the dyeability of fabrics and fibers |
Also Published As
Publication number | Publication date |
---|---|
AU2003206796A1 (en) | 2003-09-02 |
US20050115007A1 (en) | 2005-06-02 |
GB0202723D0 (en) | 2002-03-27 |
EP1478800A1 (en) | 2004-11-24 |
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