Color changing hand soap composition

• US 7,307,051 B2
• Filed: 06/20/2005
• Issued: 12/11/2007
• Est. Priority Date: 10/23/2003
• Status: Expired due to Fees

• Current Assignee: Sarah Rich
• Original Assignee: Sarah Rich
• Inventors: Rich, Sarah
• Primary Examiner(s): OGDEN JR, NECHOLUS
• Application Number:
  US11/156,758
• Publication Number:
  US 20050233918A1
• Time in Patent Office: 904 Days
• Field of Search: None
• US Class Current: 510/138
• CPC Class Codes: A61K 2800/45 Colour indicators, e.g. pH- or Redox indicators
• CPC Class Codes: A61K 2800/654 The particulate/core comprising macromolecular material
• CPC Class Codes: A61K 2800/88 Two- or multipart kits
• CPC Class Codes: A61K 8/0241 Containing particulates characterized by their shape and/or structure see also A61K8/04, A61K8/11, and A61K8/14, further aspects are classified in A61K2800/40 and subcodes
• CPC Class Codes: A61K 8/19 containing inorganic ingredients
• CPC Class Codes: A61K 8/733 Alginic acid; Salts thereof
• CPC Class Codes: A61K 8/9789 Magnoliopsida [dicotyledons]
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations

Abstract

A composition can indicate whether hands have been washed for an approximate predetermined period of time. The composition includes a pH indicator and a delivery system. The delivery system contains a pH-altering compound. The delivery system is added to the pH indicator approximately when hand washing begins. A method of washing hands is also presented. The pH indicator is applied to the hands. The delivery system is applied to the hands approximately when hand washing begins. The pH indicator and delivery system are mixed. A system for washing hands is also presented. The system includes a pH indicator, a delivery system, and a dispenser that releases the pH indicator and delivery system to hands. The hands are washed until the pH indicator changes color.

Claims

1. A method of washing hands for an approximate minimum period of time predetermined to provide effective cleansing, the method comprising:

a. providing a dual chamber dispenser containing a cleansing system comprising a first element and a second element formulated, upon mixing for the minimum period of time, to indicate passing of the minimum period of time by a change of color;

b. applying to a user'"'"'s hands from a first chamber of the dual chamber dispenser the first element of the cleansing system, the first element containing a pH indicator, where the pH indicator is red cabbage isolate;

c. applying to the user'"'"'s hands from a second chamber of the dual chamber dispenser the second element of the cleansing system comprising a soap or detergent and alginate beads containing a pH-altering compound; and

d. performing hand washing motion of the user'"'"'s hands for at least the minimum period of time, the hand washing motion mixing the cleansing system of the first element containing the pH indicator and the second element comprising soap or detergent and alginate beads containing the pH-altering compound and causing the cleansing system to change color, for indication of passing of the minimum period of time predetermined to provide effective cleansing.

2. The method of claim 1 wherein the pH-altering compound is a bicarbonate.