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
  • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
  • D06M16/006—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with wool-protecting agents; with anti-moth agents
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46D—MANUFACTURE OF BRUSHES
  • A46D1/00—Bristles; Selection of materials for bristles
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
  • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
  • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
  • A61L2/23—Solid substances, e.g. granules, powders, blocks, tablets
  • A61L2/238—Metals or alloys, e.g. oligodynamic metals

Definitions

• a method for treating said article by immersion in a solution containing said metal is provided.
• the invention has for object an autosterile article, characterized in that it contains or carries a metal in a divided state, colloidal or ionic, preventing the development of bacteria, fungoid growths and mildew and rendering the article autosterile and autodeodorized.
• the invention also relates to a method for the production of this article, characterized in that one treats the article by immersion in a solution containing said agent.
• the articles may be composed of various materials, for example natural or synthetic fibres or hairs, plastic materials, natural or synthetic leather, paper, rubber, ceramics, wood, metals or other substances of animal, vegetable, mineral or synthetic origin.
• the articles to which this method may be applied are all those which, in a direct or indirect manner, may enter into contact with man or animal, for example hair brushes, tooth brushes, nail brushes, beard brushes, gloves and toilet linen, natural or synthetic sponges, clothing, underclothing, or parts thereof, handkerchiefs, articles for private hygiene, or dressings, stockings, socks, linings or inner soles of shoes, articles serving for packing or adapted to contain food, cosmetic or pharmaceutical products, a
• the agent may be included in the material which will serve for the manufacture of the article or fixed afterwards, according as to whether the material employed will be synthetic or natural.
• This agent is a metal in the divided state, colloidal or ionic, which has anti-microbic properties and must be fixed in such a manner that it remains or becomes prac tically insoluble, whatever be its definitive chemical or physical structure.
• the metal may be, for example, silver, bismuth, copper, mercury, etc.
• the fixation of the metallic ions is effected, preferably, by immersion in a solution of salts of these metals, then by transformation into metallic oxide or hydroxide and reduction to a finely divided metal by a chemical or physico-chemical process.
• the agent When the agent must be incorporated in a synthetic material, it may be incorporated directly in the form of the finely divided metal (precipitated or colloidal).
• silver ion fixes on electronegative groups, that is, for example, the sulphydrile and carboxylic functions of keratin, then when these functions are saturated, it is absorbed.
• EXAMPLE I Treatment of brush hairs 100 gr. of hairs are immersed in 1 litre of an aqueous solution of sodium laurylsulphate at 10% during one hour at the temperature of 50 C., then in 1 litre of a solution of silver nitrate at 2% at the temperature of 20 C. One removes the air by passing under reduced pressure during one minute. The hairs are left in the silver nitrate solution for 24 hours while slightly stirring the solution, then the hairs are treated by 1 litre of caustic soda n/ 10 for 5 minutes, and then by 1 litre of formaldehyde in solution at 2.5% for 1 hour. The hairs are then washed with running water accompanied by very strong stirring until elimination of the particles which do not strongly adhere to the hairs.
• EXAMPLE II Treatment of brush hairs 100 gr. of hairs are immersed at ordinary temperature in 2.5 litres of the following solution: 10 gr. of silver nitrate, 22 gr. of ammonium hydroxide (15% NH;,), 968 gr. of distilled water. The included air is removed by rapid passing at reduced pressure and the hairs left in the solution for 24 hours While slightly stirring. The hairs are then treated with 2.5 litres of caustic soda n/10 for 5 minutes, then with 2.5 litres of formaldehyde in solution at 2.5% for one hour. The hairs are then Washed with running water with very strong stirring until elimination of the particles which do not strongly adhere to the hairs.
• Example II the hairs have been subjected to pretreatment in a first solution, a single treatment is applied thereto in Example II.
• EXAMPLE III Treatment of a cotton fabric
• the fabric is immersed in a sufficient quantity of an aqueous solution of silver nitrate at 2% containing 0.2% of a non ionic surface active agent, then wrung and dried. It is then immersed in an aqueous solution containing 0.3 of hydrogen peroxide and 4% of caustic soda, and left for 15 minutes in this bath.
• a method of manufacturing an autosterile keratin containing article in which silver is made to penetrate the keratin so as to prevent the formation of bacteria on said article and thereby render the article autosterile which method comprises:
• a method of manufacturing an autosterile keratin containing article in which silver is made to penetrate the keratin to be made autosterile comprising:

Landscapes

• Health & Medical Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Epidemiology (AREA)
• General Health & Medical Sciences (AREA)
• Textile Engineering (AREA)
• Microbiology (AREA)
• Medicinal Chemistry (AREA)
• Biochemistry (AREA)
• Animal Behavior & Ethology (AREA)
• Engineering & Computer Science (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Cosmetics (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)
• Coloring (AREA)
• Chemically Coating (AREA)
• Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=4209576

Family Applications (1)

Country Status (9)

Families Citing this family (1)

Citations (3)

• 1966
  • 1966-02-01 CH CH140266A patent/CH462775A/fr unknown
• 1967
  • 1967-01-24 DE DE19671642132 patent/DE1642132A1/de active Pending
  • 1967-01-25 NL NL6701158A patent/NL6701158A/xx unknown
  • 1967-01-26 US US611811A patent/US3536442A/en not_active Expired - Lifetime
  • 1967-01-27 GB GB4291/67A patent/GB1178307A/en not_active Expired
  • 1967-01-27 BE BE693316D patent/BE693316A/xx unknown
  • 1967-01-30 FR FR93021A patent/FR1509658A/fr not_active Expired
  • 1967-01-31 SE SE01350/67A patent/SE357496B/xx unknown
  • 1967-01-31 IT IT50382/67A patent/IT1020504B/it active

Patent Citations (3)

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