Method for the antimicrobial finishing of textiles and fibers

• US 8,906,115 B2
• Filed: 12/11/2007
• Issued: 12/09/2014
• Est. Priority Date: 12/12/2006
• Status: Expired due to Fees

• Current Assignee: Sanitized AG
• Original Assignee: Sanitized AG
• Inventors: Bender, Walter
• Primary Examiner(s): Pyon, Harold
• Assistant Examiner(s): Diggs, Tanisha
• Application Number:
  US12/518,477
• Publication Number:
  US 20100115706A1
• Time in Patent Office: 2,555 Days
• Field of Search: 811/551, 811/56, 811/565, 849/0, 252/8.61
• US Class Current: 8/115.51
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 25/24 containing ingredients to enhance the sticking of the active ingredients
• CPC Class Codes: A01N 25/34 Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
• CPC Class Codes: A01N 33/12 Quaternary ammonium compounds
• CPC Class Codes: A01N 55/00 Biocides, pest repellants or attractants, or plant growth regulators, containing organic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen and sulfur containing organo-phosphorus compounds A01N57/00
• CPC Class Codes: A01N 59/16 Heavy metals; Compounds thereof
• CPC Class Codes: D06M 11/17 Halides of elements of Groups 3 or 13 of the Periodic Table
• CPC Class Codes: D06M 11/20 Halides of elements of Groups 4 or 14 of the Periodic Table, e.g. zirconyl chloride
• CPC Class Codes: D06M 11/45 Oxides or hydroxides of elements of Groups 3 or 13 of the Periodic Table; Aluminates
• CPC Class Codes: D06M 11/46 Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
• CPC Class Codes: D06M 11/56 Sulfates or thiosulfates other than of elements of Groups 3 or 13 of the Periodic Table
• CPC Class Codes: D06M 11/71 Salts of phosphoric acids
• CPC Class Codes: D06M 13/46 Compounds containing quaternary nitrogen atoms hydrazinium compounds D06M13/338; betaines, sulfo-betaines D06M13/342
• CPC Class Codes: D06M 13/513 with at least one carbon-silicon bond
• CPC Class Codes: D06M 16/00 Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic

Abstract

A method for the antimicrobial finishing of synthetic fibers, in which an aqueous solution of an organic primer component (P), such as, for example, gallic acid, and, as antimicrobial component (K), at least one organic quaternary ammonium compound, and a metal salt component (M) are applied at the same time or at a different time to the fibers, permits permanent antimicrobial finishing.

Claims

1. A method for the antimicrobial finishing of textiles, fibers, or yarns which consist essentially of synthetic materials, comprising the step of applying to a textile, fiber, or yarn:

an aqueous solution comprising 0.01 to 3% by weight of an organic primer component (P), which increases the hydrophobicity of the surface of the textiles or fibers, wherein the primer component (P) is phenylalanine;

70 to 99.5% by weight of the solvent water;

0.1 to 30% by weight of auxiliary components;

0.01 to 3% by weight of an organic quaternary ammonium compound of the general formula (I) as an antimicrobial component (K)

2. The method as claimed in claim 1, wherein the antimicrobial component (K) comprises a dimethyltetradecyl(3(trimethoxysilyl)propyl)ammonium salt or a dimethyloctadecyl(3-(trimethoxysilyl)propyl)ammonium salt, and wherein the metal salt component (M) comprises a salt of a divalent metal from the group Mg, Ca, Zn, Ba and/or a salt of a trivalent metal from the group Al and Fe.

3. The method as claimed in claim 1 wherein the textile, fiber or yarn consist essentially of a polyamide, a polyester, or combinations thereof.

4. The method as claimed in claim 1 wherein the application step comprises a padding process, foam application, a spray process, a coating method or an extraction method.

5. A composition for the finishing of textiles or fibers, comprising

0.01 to 3% by weight of a primer component (P), which increases the hydrophobicity of the surface of the textiles or fibers, wherein the primer component (P) is phenylalanine;

70 to 99.5% by weight of the solvent water,

0.1 to 30% by weight of auxiliary components,

0.01 to 3% by weight of an organic quaternary ammonium compound of the general formula (I) as antimicrobial component (K)

6. The composition as claimed in claim 5, characterized in that, besides the solvent water, it comprises:

0.05 to 3% by weight of the primer component (P); and

0.01 to 3% by weight of dimethyltetradecyl(3-(trimethoxysilyl)propyl)ammonium salt or dimethyloctadecyl(3-(trimethoxysilyl)propyl)ammonium salt.