WO2011160860A1 - Compositions pour le traitement antiseptique de matériaux tissés - Google Patents

Compositions pour le traitement antiseptique de matériaux tissés Download PDF

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Publication number
WO2011160860A1
WO2011160860A1 PCT/EP2011/050586 EP2011050586W WO2011160860A1 WO 2011160860 A1 WO2011160860 A1 WO 2011160860A1 EP 2011050586 W EP2011050586 W EP 2011050586W WO 2011160860 A1 WO2011160860 A1 WO 2011160860A1
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WIPO (PCT)
Prior art keywords
bentonite
ions
intercalated
powder
powders
Prior art date
Application number
PCT/EP2011/050586
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English (en)
Inventor
Ara Arshavirovich Abramyan
Mikhail Mefodievich Afanasyev
Viacheslav Ivanovich Beklemyshev
Konstantin Vitalievich Filippov
Igor Ivanovich Makhonin
Umberto Orazio Giuseppe Maugeri
Vladimir Aleksandrovich Solodovnikov
Original Assignee
Closed Stock Company "Institute Of Applied Nanotechnology"
Fondazione Salvatore Maugeri Clinica Del Lavoro E Della Riabilitazione
Sib Laboratories Limited
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Application filed by Closed Stock Company "Institute Of Applied Nanotechnology", Fondazione Salvatore Maugeri Clinica Del Lavoro E Della Riabilitazione, Sib Laboratories Limited filed Critical Closed Stock Company "Institute Of Applied Nanotechnology"
Publication of WO2011160860A1 publication Critical patent/WO2011160860A1/fr

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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
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • 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
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16—Heavy metals; Compounds thereof
    • 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
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16—Heavy metals; Compounds thereof
    • A01N59/20—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • D06M11/58—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 nitrogen or compounds thereof, e.g. with nitrides
    • D06M11/64—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 nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
    • D06M11/65—Salts of oxyacids of nitrogen
    • 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
    • D06M11/77—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 silicon or compounds thereof
    • D06M11/79—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 silicon or compounds thereof with silicon dioxide, silicic acids or their salts
    • 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
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • 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

Definitions

  • the invention concerns the area of hygiene and sanitation, namely compositions for processing of woven materials and the products obtained from them.
  • Woven fibrous textile materials are traditionally processed with various methods such as dispersion, impregnation, calendering, metallization etc., with various compositions for improvement of their operational characteristics, i.e. antiseptic, water- repellent, dirt-repellent, tactile etc. properties.
  • catamine AB potassium iodide or sodium n-sulphonamidobenzolaminomethylsulphate, or yodinol
  • catamine AB bigluconate chlorhexidine, 5- nitrofurilacrolein (Russian patent No 2159825), are already used for imparting antiseptic properties to the textile materials used for manufacturing, for example, medical clothes of single use and dressing medical materials.
  • antiseptic preparations described in these patents are effective only for processing textile materials intended for manufacturing of products of single or short-term application as they are not resistant to water processing by washing-up liquids, and decay at long storage of finished products.
  • a composition for antiseptic processing for example of hygienic napkins, containing sorbic and citric acids, sodium chloride, odorant and water is known (US Patent N. 5049440).
  • the given composition possesses a limited spectrum of antimicrobic action (in relation to gram-positive and gram-negative bacteria) and is not effective in respect to various pathogenic funguses and protozoa.
  • a composition for antiseptic processing which is effective in relation to gram- positive and gram-negative bacteria (E.coli, Bacillus subtilis, Micrococcus luteus, Staphylococcus aureus); funguses (Aspergillus niger, Candida albicans) and protozoa (Euglena viridis, Amoeba proteus) (see Russian patent No 2088218) is known.
  • This composition contains sorbic acid, citric acid, sodium chloride, water, odorant and, in addition, hyaluronic acid and apple pectin. Technological applications of the given composition are limited because it is applied to processing hygienic napkins of single use, manufactured from nonwoven materials.
  • the hyaluronic acid and natural high-molecular weight compound (apple pectin) demand specific conditions of storage of products, i.e. special packing for preservation from moisture.
  • compositions for antiseptic processing have limited technological applications and do not provide effective antiseptic processing of woven materials and products from them, especially on the basis of natural strings and fibres.
  • a composition for antiseptic processing of woven materials and products of them, containing 0,5-2% alcoholic solution of a block-copolymer of polydimethylsiloxane and polyurethane is disclosed in said Russian patent. It has a viscosity from 10000 up to 45000 Pa s at 110°C and has biocide activity on the basis of a nanostructured powder of bentonite intercalated by ions of Ag + or/and Cu 2+ injected in the alcoholic solution.
  • a nanostructured powder of bentonite intercalated by ions of Ag + or and Cu 2+ is obtained by processing a powder of bentonite with water solutions of silver nitrate or copper sulfate.
  • the powder of bentonite is preliminarly enriched with cations of Na + through processing with water solution of an inorganic salt of sodium, with subsequent cleaning from anions.
  • a composition on the basis of a block-copolymer of polydimethylsiloxane and polyurethane concerns thermoplastic silicones. It possesses high adhesion to various materials and is used for processing woven materials, for imparting basically water- repellent and dirt-repellant properties to them.
  • processing of products from woven materials processed with the given composition is accompanied by destruction of the polymeric film formed on the fibres. Destruction of the polymeric film is the consequence of various physical-mechanical processes (attrition, lengthening of fibres, thermal processing of fibres at ironing of the products, etc.) and chemical processes (processing by water, alkali, acids, etc.). It also take place at water processing (washing) of woven materials and of products from them. Prolonged action of the composition and antimicrobic properties of the exploited products worsen as a result of the destruction of the polymeric film.
  • the problem of the invention consisted in the creation of a composition for antiseptic processing of woven materials, selection of components and their ratio in the composition for providing efficiency to its prolonged antiseptic action at operation of products from woven materials.
  • composition for antiseptic processing of woven materials containing 0,5-2,0 % of alcoholic solution (preferably isopropyl alcohol solution) of a block-copolymer on the basis of polydimethylsiloxane and polyurethane, with viscosity from 10000 up to 45000 Pa s at 110°C and on the basis of a biocide injected into the mentioned solution, is submitted as a solution of the declared technical problem.
  • Biocide is created on the basis of a nano structured powder of bentonite intercalated by ions of Ag + or/and Cu 2+ .
  • the composition in addition contains a nanostructured powder of bentonite intercalated by ions of cerium (Ce 3+ ) at the ratio of the named powder of bentonite to a powder of bentonite intercalated by ions of Ag + or/and Cu 2+ as (0,001 ⁇ 0,01): 1 (parts by weight).
  • Ce 3+ cerium
  • Cu 2+ ions of Ag + or/and Cu 2+ as (0,001 ⁇ 0,01): 1 (parts by weight).
  • 0,5-1,5 weight % of a mix of bentonite powders, at a ratio of the named mix of powders to a block-copolymer as (0,5-1) : 1 (parts by weight) was used on a dry woven material.
  • nanostructured powders of bentonite and an alcoholic solution of block-copolymers were used at the ratio: 1-(100 ⁇ 120) (parts by weight).
  • the size of particles of nanostructured powders of bentonite was from 20 up to 150 nm.
  • the size of particles of nanostructured powders of bentonite intercalated by ions of cerium (Ce 3+ ) was from 20 up to 50 nm and the size of particles of nano structured powders of bentonite intercalated by ions of Ag + or/and Cu 2+ was from 20 up to 150 nm.
  • a mix of nanostructured powders of bentonite intercalated by ions of Ag + and Cu 2+ has the ratio as: 1 : (0,2-0,8) (parts by weight).
  • nanostructured powders of bentonite intercalated by ions of Ag + , Cu 2+ contain 2-6 weight % of the named metals.
  • a powder of bentonite intercalated by ions of Ce 3+ is obtained by modifying a semifinished product of bentonite in Na-form (enriched with ions of Na + ) by means of a water solution of an inorganic salt of cerium, preferably, Ce(N0 3 ) 3 • 6H 2 0 at the ratios: semifinished product : salt of cerium as 1 : (0,1-0,2) (parts by weight) and deionized water : salt of cerium as (10-20) : 1 (parts by weight), with subsequent removal of sodium salts, dispersion and drying of the obtained product.
  • a nanostructured powder of bentonite intercalated by ions of Ce 3+ contains 1,5-2,0 % b.w. of the named metal.
  • a composition for antiseptic processing of woven materials, on the basis of natural components. It corresponds to the requirements of ecological compatibility and safety. Application of the composition provides effective products for antiseptic processing both for household and medical purposes.
  • the film contains particles of nanostructured powders of bentonite providing prolonging antiseptic properties (antimicrobic, antifungal) to woven materials and to products obtained from them and also inhibition of destruction of the used copolymer film when applying the named products;
  • compositions on the basis of components which are biologically compatible with tissues of live organisms.
  • silver nitrate AgN0 3
  • copper sulphate CuS0 4
  • sodium chloride NaCl
  • cerium nitrate Ce(N0 3 ) 3 -6H 2 0
  • polar solvents - deionized water preferably isopropyl alcohol
  • the used composition has been obtained as follows:
  • Bentonite (montmorillonite) in Na-form was kept in 5% water solution of NaCl carrying out enrichment of bentonite with ions of sodium. Then repeated washing for removal of chlorine anions and subsequent filtration and drying was carried out.
  • nanostructured bentonite powders (nanoparticles of bentonite) intercalated by ions of the specified metals and without salts of sodium are obtained from semifinished products of bentonite obtained at the 1 st step.
  • a semifinished product was cleaned from anions, dried up and modified by 10- 20% water solution of silver nitrate (at red illumination). 15% water solution of silver nitrate (AgN0 3 ) was preferably used.
  • the obtained modified semifinished product was repeatedly washed out for removal of salts of sodium, filtered and dried.
  • the amount of water solutions used for processing 5 g of semifinished products (1 st step) was the following: bentonite : water solution as 1 : 20 (parts by weight). After drying the product was grinded.
  • Example 2 The same materials and technological methods as in the Example 1 are used, but 15 % water solution of copper sulfate (CuS0 4 ) is used to modify bentonite enriched with ions of sodium Na + .
  • CuS0 4 copper sulfate
  • a bentonite powder intercalated by ions of Cu 2+ and not containing salts of sodium is obtained.
  • Deionized water is used for realization of technological steps 1 and 2 mentioned above.
  • Dispersion of the products obtained according to the Examples 1 - 2 up to the sizes of particles specified according to the invention was carried out, preferably as follows: the products of Examples 1-2 were dispersed in deionized water at the ratio (parts by weight): product (Examples 1-2) : solvent, as 1: 10.
  • Bentonite powders obtained in Examples 1-2 were tested for definition of mass % of the contents of silver and copper, by means of titrimetric analysis.
  • bentonite powders intercalated by ions of the named metals can contain from 2,0 up to 6,0 mass % of silver or copper depending on amount of modifying reagents used.
  • Two-steps process for obtaining a biocide on the basis of nano structured powders of bentonite intercalated by ions of silver and copper is optimal, depending on the content of intercalating metals in powders of bentonite.
  • the specified mass % contents of silver or copper in bentonite powders is optimum.
  • Costs for manufacturing are increased at increase in amount of silver or copper in an intercalated powder of bentonite, and antibacterial activity of the composition obtained according to the invention is reduced at decrease of mass % of content of metals.
  • the semifinished product of a bentonite powder made at the 1 st step was preliminarly enriched with cations of sodium Na + . Then it was cleaned from anions, dried up and modified (intercalated) by ions of cerium.
  • Cerium nitrate Ce(N0 3 )3-6H 2 0 was used to modify the specified semifinished product.
  • Cerium metal of variable valency
  • Cerium dioxide is an antioxidant with peculiar inactivating and blocking influence on formation of peroxide and hydroperoxide radicals, formed at thermal-oxidative processes in polymers.
  • Cerium nitrate Ce(N0 3 ) 3 ⁇ 6 ⁇ 2 0 was dissolved in deionized water for realization of the present example. The solution was added to the semifinished product of bentonite activated (enriched) with ions of sodium at the following ratio:
  • the volume of the obtained suspension was increased to 7-10 times with use of deionized water.
  • the suspension was mixed and kept over 24 hours; then the intercalated mineral was filtered through paper filters, dried (up to full drying) and grinded.
  • Dispersion of the products obtained by the Example 3 was carried out with use of a ultrasonic dispersant.
  • the process was carried out with use of the dispersant Bandelin Sonoplus HD2070, at the Power 40 Wt, within 15-20 min.
  • the finished product i.e. a powder of bentonite intercalated by ions of cerium (Ce 3+ ) was obtained.
  • the size of particles of the bentonite powder was determined as a result of tests with an electronic microscope. It was from 20 up to 50 nm.
  • cerium The contents of cerium were determined by the method of the plasma analysis (ICP). It was roughly 1,5 %.
  • the sizes of particles of a powder of bentonite intercalated by ions of cerium specified in the invention are the optimum on conditions of inhibitory influence of this metal on destruction of the block-copolymer used in the composition.
  • Good adhesive properties of the block-copolymer provide formation of a protective film with nanoparticles of specified biocide on fibres of woven materials.
  • Efficiency of inhibiting influence of cerium on processes of peroxide oxidations occurring in the used copolymer forming a polymeric film on fibres of a material is decreased if a powder of bentonite intercalated by ions of cerium with a size of the particles of more than 50 nm is used.
  • biocide on the basis of a mix of powders of bentonite intercalated by ions of silver and copper, at their specified ratio, to decrease the costs for the manufacture of the compositions according to the invention.
  • Use of a mix of the named powders is preferable for woven materials with antiseptic effect (antimicrobic and antifungal action), intended for manufacture of products of household purpose (linen, various coverings including for technical purpose).
  • a powder of bentonite intercalated by ions Ag + for products of medical purpose (a bandage, a lining, etc) as most effective on antimicrobic protection in respect to a wide spectrum of microorganisms.
  • thermoplastic silicones A preparation from a class of thermoplastic silicones is also used to manufacture compositions for antiseptic processing of woven materials and products from them, in particular:
  • Penta-1009 It is a block-copolymer of polydimethylsiloxane and polyurethane, i.e. thermoplastic silicon combining organic and inorganic components, i.e. rigid and elastic blocks in the same structure.
  • Modifications of the preparation Penta-1009 have viscosity from 10000 up to 45000 Pa s at 110°C.
  • the preparation Penta-1009 is a transparent material with a high degree of light transmission (without yellowness); it does not contain fillers, softeners and other additives.
  • the preparation possesses high adhesion to various materials and high mechanical durability. It does not contain volatile substances and is stable and steady at storage.
  • Penta-1009 is combined with organic polymers due to block structure and it is used to modify textile materials forming a water-resistant porous layer on the textile fibres.
  • the specified functionalities of the named preparation have defined its choice in the compositions for antiseptic processing of woven materials, realizing the technical result specified in the invention.
  • the percentage b.w. declared in the invention for the content of the named block- copolymer is the optimum. Interaction of particles of bentonite powders with fibres of woven material worsens at decrease in its amount in the composition while increase in its amount leads to increase in costs for manufacture of the compositions and to deterioration of characteristics of woven materials, including density, tactile properties, etc.
  • compositions declared in the invention for antiseptic processing of woven materials on the basis of use of the above specified components and weight ratios, provide effective prolonged antimicrobic and antifungal action on various bacteriological impurities and microorganisms which are present both on tissues of live organisms (on the body of a human being) and in the environment.
  • the obtained composition is not toxic, does not cause allergy, and has no contraindications.
  • composition for antiseptic processing of woven materials and products from them is illustrated by the following examples:
  • a nanostructured powder of bentonite intercalated by ions of Ag + (Example 1) in the amount of 1 part by weight of a powder per 100 parts by weight of the named alcoholic solution;
  • Grams 0,9 of a mix of the named nanostructured powders of bentonite, injected into 0,5 % alcoholic solution of Penta-1009 G is used for processing samples of a woven material (coarse calico) each of 180 g.
  • Processing is carried out by impregnation of fabrics with the named solution.
  • the weight of the woven material is increased of 0,7 , after drying.
  • the weight of the samples before processing was 2,0 g and after processing was
  • composition of the present example was obtained using the following ingredients:
  • nanostructured powder of bentonite intercalated by ions of Ag + (Example 1) in amount of 1 part by weight of powder per 100 parts by weight of the named alcoholic solution;
  • the weight of the woven material is increased of 1,5 , after drying.
  • composition of the present example was obtained using the following ingredients:
  • Example 1 and Example 2 at the ratio in the mix as 1,0 : 0,5 (parts by weight). 1 part by weight of the mixes of powders per 100 parts by weight of the mentioned alcoholic solution was used;
  • the weight of the samples before processing was of 2,0 g and after processing was of 2,02 g.
  • Example 7 control.
  • composition of the present example was obtained using the following ingredients:
  • the weight of the woven material is increased of 1,5 , after drying.
  • the weight of the samples before processing was 2,0 g, and after processing was 2,02 g.
  • Antimicrobic properties of each sample were estimated basing on formation of zones of inhibition of growth of strains of microorganisms, which were precisely defined on the background of the continuous lawn of growth of the tested culture.
  • Example 4-7 Estimation of antifungal properties of the tested compositions (Examples 4-7) was carried out by the same technique with application of a dense nutrient medium (Czapek Dox Agar, manufacturer Himedia, India).
  • the nutrient medium was preliminarly inoculated with tests-microorganisms, i.e. cultures of funguses of Aspergillus sydowii and Aspergillus niger.
  • Test-cultures of funguses were used for preparation of a suspension of spores of funguses. They were cultivated on the medium of Capek at 28°C. Age of cultures of funguses was from 14 till 28 days, beginning from the moment of recultivation.
  • a suspension of spores in concentration of 1 million/ml was prepared separately for each kind of test-cultures of funguses.
  • a suspension of each kind of funguses of the specified concentration was deposited on the surface of the nutrient medium (a lawn of the culture). Then samples of textile, processed with the tested compositions according to Examples 4-7, were placed on the surface of the obtained fungus culture.
  • Tests were carried out within 5-7 days at a temperature of 28°C. Washing of the tested samples and their drying with subsequent deposition on the surface of the nutrient medium, with control of the specified technological parameters, was carried out after the expiration of the specified term. Then measurement of zones of inhibition of growth of tests- microorganisms (in mm) was carried out around of the above mentioned samples.
  • the tests have shown the presence of zones of inhibition of growth of test- microorganisms on the average 7 mm, when using the composition according to Examples 4 and 6 for processing of woven materials.
  • the zone of inhibition of growth of test-cultures at use of the composition according to the Example 5 was 8 mm. That testifies the synergism of powders of bentonite intercalated by ions of silver and copper when used in mixed compositions.
  • the carried out researches testify, as a whole, the high efficiency of the composition for antiseptic processing of woven materials object of the invention and its prolonged action in relation to various colonies of microorganisms.
  • composition according to the invention for processing various woven materials intended for the manufacture of products both for medical and household purposes, including for manufacture of linen, socks, insoles for footwear, towels, clothes for the medical personnel, protective clothes for work in the centers with high infectious danger and protective fabric coverings for various products.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Wood Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Agronomy & Crop Science (AREA)
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  • Nanotechnology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
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  • Crystallography & Structural Chemistry (AREA)
  • Biochemistry (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

L'invention concerne le domaine de l'hygiène et de l'assainissement, à savoir des compositions pour le traitement de matériaux tissés dans le but de désinfecter les produits obtenus à partir de ceux-ci. Les compositions pour un traitement antiseptique de matériaux tissés contiennent entre 0,5 et 2 % d'une solution alcoolique d'un copolymère bloc à base de polydiméthylsiloxane et de polyuréthanne, avec une viscosité comprise entre 10000 et jusqu'à 45000 Pa-s à 110 °C. Un biocide à base d'une poudre nanostructurée de bentonite dans laquelle sont intercalés des ions d'Ag+ et/ou de Cu2+ est injectée dans ladite solution. La principale nouveauté réside dans le fait que les compositions contiennent une poudre nanostructurée de bentonite dans laquelle sont intercalés des ions de cérium (Ce3+) à un rapport de ladite poudre de bentonite sur la poudre de bentonite dans laquelle sont intercalés des ions d'Ag+ et/ou de Cu2+ de (0,001÷0,01) : 1 (en parties en poids). Un mélange des poudres de bentonite au rapport dudit mélange sur un copolymère bloc de (0,5-1) : 1 (parties en poids) est utilisé sur des masses de matériaux tissés secs, à une quantité de 0,5-1,5 % en poids. Les compositions selon l'invention exercent une action antiseptique prolongée et efficace sur des matériaux tissés et des produits obtenus à partir de ceux-ci.
PCT/EP2011/050586 2010-06-21 2011-01-18 Compositions pour le traitement antiseptique de matériaux tissés WO2011160860A1 (fr)

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