Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/70—Carbohydrates; Sugars; Derivatives thereof
• • 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
  • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
  • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
  • A61L15/20—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
• • 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
  • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
  • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
  • A61L15/42—Use of materials characterised by their function or physical properties
  • A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
• • 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

• My invention relates to a method of imparting to textiles protection against the action of noxious organisms such as fungi and bacteria which protection is retained after repeated washing and cleaning operations, and more particularly it relates to a method of protecting textiles by impregnating or coating the textiles with a composition selected from the group consisting of zinc bacitracin and copper bacitracin.
• the textile industry has long sought a satisfactory means for protecting textiles against the action of noxious organisms such as fungi, bacteria and insects during periods of storage and use and after repeated washing and cleaning operations which eventually remove the protecting agents previously available.
• the problem has been complicated by the varying compositions of textiles in use and the widely difierent conditions under which they require protection.
• the practical utility of textiles protected from bacterial activity even after repeated washings is obvious.
• the antibacterial properties of such textiles would tend to lessen the liability of body odors due to the bacteria which contaminate untreated fabrics and which thrive upon perspiration and other body secretions.
• the textile can be suitably treated with one of my compositions by placing the textile in an aqueous solution of bacitracin, adding a solution of about 1% zinc chloride or copper chloride, adjusting the pH of the combined solutions with sodium hydroxide to precipitate either the zinc bacitracin or copper bacitracin onto the textile, removing the textile from the solution and allowing the thus treated textile to dry.
• concentrations as low as 0.05% by weight based on the weight of the textile treated of the above-named compounds are sufiicient to protect textiles.
• concentrations ranging up to and above 2% by weight are desirable.
• concentrations ranging from about 0.1% to about 1% by weight of the above-named compositions are desirable.
• Example I To test the resistance of fabrics treated with zinc bacitracin, two strips of cotton-duck fabric were placed in an aqueous solution of bacitracin, a 1% solution of zinc chloride was then added and the pH was adjusted with sodium hydroxide to precipitate zinc bacitracin onto the fabric. After sutiicient soaking the strips were drained and allowed to dry. The treated strips contained 0.5% zinc bacitracin by weight based on the weight of the strip. The strips were washed and dried a total of 13 times in an automatic washer using a common household detergent. At the end of the 13th washing and drying procedure one disc 25 mm. in diameter was cut from each of the strips and each disc was placed on a separate dish mm.
• each dish containing 15 m1. of nutrient agar inoculated with 0.1 ml. of the organism M. flavus.
• the discs were then incubated for 24 hours at 37 C. After incubation it was observed that no organisms were growing on either of the treated discs.
• One of the said discs had completely inhibited the growth of organisms within 1.7 mm. of the disc while the other disc inhibited growth of organisms within 2.0 mm. of the disc.
• Example II To demonstrate the ability of copper bacitracin to pro tect textiles from noxious organisms, the procedure of Example I was followed except that copper chloride was utilized instead of zinc chloride. At the end of the test it was observed that no organisms were growing on either of the discs treated with copper bacitracin. One of the said discs had completely inhibited the growth of bacteria within 2.0 mm. of the disc while the other disc inhibited growth of bacteria within 1.0 mm. of the disc.
• Example III Two discs, 25 mm. in diameter of untreated cottonduck fabric were washed, dried and tested following the procedure of Example I. At the end of the test it was observed that organisms were growing in great numbers on the untreated fabric.
• a process for protecting textiles against noxious organisms which comprises treating the textiles with at least about 0.05% by weight of a compound se lected from the group consisting of zinc bacitracin and copper bacitracin.
• a process for protecting textiles against noxious organisms which comprises contacting the textiles with a solution containing bacitracin and ions selected from the group consisting of zinc ions and copper ions, adjusting thepI-I of the solution with a base to precipitate at least about 0.05% by weight of a compound selected from the groupconsisting of zinc bacitracin and copper bacitracin and subsequently drying the textiles to remove the solvent.
• a process for protecting textiles against noxious organisms which comprises contacting the textiles with a solution containing bacitracin and :ions selected from the group consisting of zinc ions and copper ions, adjusting the pH of the solution with a base to precipitate onto the textiles from about 0.05 to about 2% by weight based on the weight of the textiles of a compound seleoted'from the group consisting of zinc bacitracin and copper bacitracin and subsequently drying the textiles to remove the solvent.

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• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Epidemiology (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Hematology (AREA)
• Materials Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Microbiology (AREA)
• Molecular Biology (AREA)
• Textile Engineering (AREA)
• Biochemistry (AREA)
• Pharmacology & Pharmacy (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)

Priority Applications (5)

Applications Claiming Priority (1)

Publications (1)

Family

ID=21797520

Family Applications (1)

Country Status (4)

Citations (8)

• 0
  • NL NL121340D patent/NL121340C/xx active
  • NL NL262716D patent/NL262716A/xx unknown
• 1960
  • 1960-04-06 US US20245A patent/US3109776A/en not_active Expired - Lifetime
• 1961
  • 1961-03-16 DE DEC23662A patent/DE1175646B/de active Pending
  • 1961-03-21 GB GB10342/61A patent/GB915797A/en not_active Expired

Patent Citations (8)

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