Method for treating dishware

Patent metadata

Field	Value
Publication number	US-10111574-B2
Application number	US-201514594196-A
Country	US
Kind code	B2
Filing date	Jan 12, 2015
Priority date	Jan 24, 2014
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

Method and apparatus for treating dishware, in which the method comprises the steps of providing a treatment composition comprising a photoactive component, contacting in an appliance the treatment composition with the dishware, and irradiating the treatment composition with visible light. The step of irradiating the treatment composition with visible light is performed with a source of light that is tool free insertable into and removable from the appliance.

First claim

What is claimed is:

1. A method for treating dishware comprising the steps of:
providing a treatment composition comprising a photoactive component;
contacting in an appliance said treatment composition with said dishware; and
irradiating said treatment composition with visible light;
wherein the step of irradiating said treatment composition with visible light is performed with a dispenser that comprises a source of light and a reservoir releasably containing said treatment composition, wherein said dispenser is tool free insertable into and removable from said appliance, and wherein said source of light has a power source independent of said appliance.

2. The method according to claim 1 , wherein said photoactive component is a photoactivator.

3. The method according to claim 1 , wherein said dispenser is tool free attachable and detachable from an interior portion of said appliance.

4. The method according to claim 1 , wherein the step of irradiating said treatment composition with visible light provides a radiant flux between about 500 mW and 500 W.

5. The method according to claim 1 , wherein said dispenser is tool free attachable to and detachable from a rack within said appliance.

6. The method according to claim 1 , wherein said appliance has a cabinet within which said dishware is cleaned, wherein said dispenser is tool free attachable to and detachable from said cabinet.

7. The method according to claim 1 , wherein the treatment composition is a fully formulated dish detergent.

8. The method according to claim 1 , wherein the treatment composition comprises from about 0.1% to about 25% by weight photoactivator.

9. The method according to claim 1 , wherein the treatment composition comprises from about 0.5% to about 10% by weight photoactivator.

10. The method according to claim 1 , wherein said dispenser is tool free attachable to and detachable from a mobile component within said appliance.

Assignees

• Procter & Gamble

Inventors

• Willey Alan David
• Gardner Robb Richard
• Willison Kady Lynn
• Mueller William Richard
• Adams Jacob Robert

Classifications

• B08B3/10

  with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration · CPC title

• C11D3/0063

  Photo- activating compounds · CPC title

• A47L15/4236 Primary

  Arrangements to sterilize or disinfect dishes or washing liquids (A47L15/4234 takes precedence) · CPC title

• A47L2601/00

  Washing methods characterised by the use of a particular treatment · CPC title

• A47L2601/10

  Ultraviolet radiation · CPC title