Washing aid having an antibacterial effect

• US 8,309,506 B2
• Filed: 09/14/2011
• Issued: 11/13/2012
• Est. Priority Date: 03/20/2009
• Status: Expired due to Fees

• Current Assignee: Henkel AG & Co KGaA
• Original Assignee: Henkel AG & Co KGaA
• Inventors: Sunder, Matthias, Cappleman, Robert Stephen, Meine, Georg, Corbellini, Francesca
• Primary Examiner(s): BOYER, CHARLES I
• Application Number:
  US13/232,551
• Publication Number:
  US 20120003289A1
• Time in Patent Office: 426 Days
• Field of Search: 510/295, 510/302, 510/353, 510/367, 510/372, 510/375, 510/437, 510/491, 510/508
• US Class Current: 510/295
• CPC Class Codes: C11D 17/049 Cleaning or scouring pads; Wipes
• CPC Class Codes: C11D 3/1206 free metals, e.g. aluminium grit or flakes
• CPC Class Codes: C11D 3/168 Organometallic compounds or orgometallic complexes
• CPC Class Codes: C11D 3/2075 Carboxylic acids-salts thereof
• CPC Class Codes: C11D 3/48 Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions

Abstract

The present invention is an auxiliary washing aid comprising a textile substrate coated or otherwise impregnated with a composition comprising elementary silver and/or a silver compound, non-neutralized fatty acid, and hydrogen peroxide.

Claims

1. An auxiliary washing agent comprising:

a. a textile substrate; and

b. a dry composition, coated on or impregnated in said substrate, comprising;

i. elemental silver and/or a silver compound;

ii. non-neutralized fatty acid; and

iii. hydrogen peroxide.

2. The auxiliary washing agent of claim 1, wherein said composition further comprises an auxiliary washing agent compound selected from the group consisting of surfactants, enzymes, perfumes, fluorescent agents, soil release-polymers, anti-graying inhibitors, shrink preventers, anti-crease agents, color transfer inhibitors, additional antimicrobials, germicides, fungicides, antioxidants, antistats, ironing aids, softening components, non-ionic fabric softeners, UV absorbers, and mixtures thereof.

3. The auxiliary washing agent of claim 1, wherein said silver compound is selected from the group consisting of silver acetate, silver citrate, silverdiamine chloride complex, silver cyclodextrin complex, silver dicyanopotassium complex, silver phthalimide, silver phenylcyanamide, silver (ethylenethiourea) complex, silver imidazolate, transition metal-NHC-calix[4] arene complexes, silver crown ethers, silver nitrate, silver chloride on a carrier material, and mixtures thereof.

4. The auxiliary washing agent of claim 1, wherein the quantity of said elemental silver and/or of silver compound is 0.0001 to 1 wt. %, based on the total composition of the auxiliary washing agent.

5. The auxiliary washing agent auxiliary washing agent of claim 1, wherein the ratio of non-neutralized fatty acid to elemental silver and/or the quantity of silver cations in the silver compound is greater than or equal to 8 to 1.

6. The auxiliary washing agent auxiliary washing agent of claim 1, wherein the quantity of non-neutralized fatty acid is between 0.01 and 10 wt. %, based on the total composition of the auxiliary washing agent.

7. The auxiliary washing agent auxiliary washing agent of claim 1, wherein said composition further comprises 0.01 to 3 wt. % ammonium hydroxide, based on the total composition of the auxiliary washing agent.

8. The auxiliary washing agent of claim 1, wherein said composition further comprises a neutralized fatty acid.

9. The auxiliary washing agent of claim 2, wherein the auxiliary washing agent compound is selected from the group consisting of surfactants, color transfer inhibitors, and mixtures thereof.

10. The auxiliary washing agent of claim 9, wherein said surfactants comprise a mixture of a non-ionic surfactant and an amine oxide.

11. A process for manufacturing of the auxiliary washing agent of claim 1, comprising the steps of:

(1) coating or impregnating said textile substrate with a composition comprising silver and/or a silver compound, a non-neutralized fatty acid, and hydrogen peroxide; and

(2) drying said composition thereon or therein.