Fibrous substrate with a solid hypohalite precipitate formed therein and process of making

US8268770B2 · kind B2 · utility

Assignee

• THE CLOROX COMPANY · US

Inventors

• Marc Privitera · Walnut Creek, US
• William L. Smith · Pleasanton, US
• Edward Jason White · Mauldin, US
• Leslie N. Adams · Manteca, US

Key dates

• Filing date: Jan 28, 2011
• Grant date: Sep 18, 2012
• Expiry date: Jan 28, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2432/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A cleaning substrate which comprises at least one layer of a solid hypohalite precipitate, wherein the hypohalite precipitate is formed in situ on the layer of substrate material. A process for making a fibrous cleaning substrate comprising the steps of: a) providing at least one layer of fibrous material; b) exposing the fibrous layer to an aqueous alkaline earth salt solution; c) treating the fibrous layer with a hypochlorite solution; d) allowing the aqueous alkaline earth salt solution combine with the hypochlorite solution to form a solid hypochlorite precipitate around the fibers in the fibrous material and a liquid phase, and e) removing at least 65% of the liquid phase from the fibrous substrate.