Disinfecting compositions and processes for disinfecting surfaces

• US 6,693,069 B2
• Filed: 06/21/2002
• Issued: 02/17/2004
• Est. Priority Date: 12/23/1999
• Status: Expired due to Term

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab GmbH & Co. Ohg (Ecolab, Inc.)
• Inventors: Roth, Christian, Körber, Heinz-Otto, Merz, Thomas, Meyer, Bernhard
• Primary Examiner(s): Gupta, Yogendra N.
• Assistant Examiner(s): Petruncio, John M
• Application Number:
  US10/168,426
• Publication Number:
  US 20030045443A1
• Time in Patent Office: 606 Days
• Field of Search: 510/292, 510/302, 510/303, 510/310, 510/316, 510/353
• US Class Current: 510/310
• 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 25/30 characterised by the surfactants
• CPC Class Codes: A01N 37/02 Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
• CPC Class Codes: A01N 37/16 containing the group; Thio analogues thereof
• CPC Class Codes: A01N 59/00 Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
• CPC Class Codes: A01N 61/00 Biocides, pest repellants or attractants, or plant growth regulators containing substances of unknown or undetermined composition, e.g. substances characterised only by the mode of action
• CPC Class Codes: C11D 1/32 Protein hydrolysates; Fatty acid condensates thereof
• CPC Class Codes: C11D 3/2079 Monocarboxylic acids-salts thereof
• CPC Class Codes: C11D 3/3418 Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates
• CPC Class Codes: C11D 3/3945 Organic per-compounds C11D3/3902 takes precedence
• CPC Class Codes: C11D 3/3947 Liquid compositions
• CPC Class Codes: C11D 3/48 Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions

Abstract

The invention relates to methods and agents for washing textiles while disinfecting them and treating the same with care, whereby a combination consisting of peracid and particular additional constituents is used as the disinfection constituent.

Claims

1. A method of disinfecting washing textiles comprising a step of washing textiles in a disinfecting component, the disinfecting component comprising a combination of peracids and at least one fatty acid for reducing the fiber-damaging effect of the peracid.

2. The method claimed in claim 1, wherein the disinfecting component comprises between 1 and 20% by weight of peracid in combination with 0.1 to 10% by weight of fatty acid, the balance to 100% by weight water and/or other active substances or auxiliaries.

3. The method claimed in claim 1, wherein the disinfecting component additionally comprises

a) at least one hydrotrope and/or

b) at least one surfactant component and/or

c) at least one complexing component.

4. The method claimed in claim 1 wherein the step of washing comprises washing textiles which are sensitive to oxidative disinfectants and/or heat at a temperature of 10 to 55°

C.

5. The method claimed in claim 4, wherein the textiles which are sensitive to oxidative disinfectants and/or temperature contain materials selected from wool, silk, viscose, polyacrylics, polyamide, acetate and lyocell.

6. The method claimed in claim 1, wherein the disinfecting component is used together with standard speciality, color, fully-built and light-duty detergents.

7. The method claimed in claim 1, wherein the disinfecting component contains as peracid an organic compound selected from

a) the peracids or salts of peracids corresponding to general formula I:

8. The method claimed in claim 7, wherein

a) peracids in which R² is hydrogen or a methyl group are present as the peracids of general formula I and/or

b) pthalimidoperacids in which in the percarboxylic acid contains 1 to 8 carbon atoms are present as the peracids and/or

c) peracids with an alkyl or alkenyl group containing 1 to 12 carbon atoms are present as the peracids of general formula III.

9. The method claimed in claim 7, wherein one or more compounds selected from peracetic acid, perpropionic acid, peroctanoic acid, phthalimidoperhexanoic acid, phthalimidoperoctanoic acid, persuccinic acid, persuccinic acid monomethyl ester, pergiutaric acid, pergiutaric acid monomethyl ester, peradipic acid, peradipic acid monomethyl ester, persuccinic acid, persuccinic acid monomethyl ester are present as the peracids.

10. The method claimed in claim 1 wherein an aqueous disinfecting washing solution containing 0.001 to 2% by weight of peracid, based on the disinfecting washing solution as a whole, is produced by addition of the disinfecting component.

11. The method claimed in claim 1, wherein an aqueous disinfecting washing solution which additionally contains 0.005 to 2% by weight of hydrogen peroxide, based on the disinfecting washing solution as a whole, is produced by addition of the disinfecting component.

12. The method claimed in claim 1, wherein fatty acids containing 8 to 12 carbon atoms are present as the fatty acid.

13. The method claimed in claim 1, wherein the hydrotrope a) is selected from xylene, octyl, naphthyl and alkylbenzenesulfonates, the alkyl group in the last of these containing between 6 and 16 carbon atoms.

14. The method claimed in claim 1, wherein the surfactant component b) is selected from the groups of anionic, cationic, nonionic, amphoteric surfactants, protein hydrolyzates, alkylamine oxides, silicone compounds and phosphoric acids esters and salts thereof.

15. The method claimed in claim 14, wherein the surfactant component b) is a cationized protein hydrolyzate.

16. The method claimed in claim 1, wherein the step of washing comprises introducing the disinfecting component into the disinfecting washing process as an aqueous solution, gel, emulsion, paste, dispersion, powder, granules, flakes, pearls, tablet, block or extrudate.

17. The method claimed in claim 1, further comprising a step of diluting the disinfecting component with water before or during the step of washing.

18. The method claimed in claim 17, wherein the dilution factor is between 10 and 10,000.

19. The method claimed in claim 1, wherein the disinfecting component contains an ester peracid as the peracid and more than 35% by weight of hydrogen peroxide, based on the composition as a whole, is additionally present.

20. The method claimed in claim 1, wherein the disinfecting component contains a peracid and octanoic acid and, in addition, octyl sulfonate and/or a cationized protein hydrolyzate.

21. A method of reducing textile fiber-damage from disinfecting washing textiles with a peracid comprising a step of washing said textiles in a disinfecting component, the disinfecting component comprising a combination of peracids and at least one fatty acid for reducing the fiber-damaging effect of the peracid.