Method and material for applying a semipermanent marking stain to a portion of a person's body

• US 20030175224A1
• Filed: 09/09/2002
• Published: 09/18/2003
• Est. Priority Date: 08/25/2000
• Status: Abandoned Application

• Current Assignee: Douglas C. Arndt
• Original Assignee: Douglas C. Arndt
• Inventors: Arndt, Douglas C.
• Application Number:
  US10/238,068
• Publication Number:
  US 20030175224A1
• Time in Patent Office: Days
• US Class Current: 424/61
• CPC Class Codes: A61K 8/35 Ketones, e.g. benzophenone
• CPC Class Codes: A61Q 1/00 Make-up preparations; Body powders; Preparations for removing make-up
• CPC Class Codes: A61Q 1/02 Preparations containing skin colorants, e.g. pigments preparations in powder form A61Q1/12
• CPC Class Codes: A61Q 3/02 Nail coatings
• CPC Class Codes: C09D 11/20 indelible

Abstract

A method for making a semipermanent mark on an individuals body comprises preparing a marking solution containing ninhydrin, preferably by mixing crystalline ninhydrin in water to provide a solution having a ninhydrin concentration of about 2% to 3% by weight and applying the resulting solution to a portion of the body such as a finger or thumb. A small quantity of a compatible dye, such as rhodamine, may also be added to the marking solution to produce an immediate, though less permanent, stain.

Claims

1. A method of making a,semipermanent identifying mark on a portion of a individual'"'"'s body comprising:

a) providing a solution containing ninhydrin; and

b) applying the solution to a portion of the individual'"'"'s body.

2. The method of claim 1 wherein the applying step comprises applying the solution to the tip of the individual'"'"'s finger.

3. The method of claim 1 wherein the providing step includes dissolving ninhydrin in water.

4. The method of claim 3 wherein ninhydrin comprises about 0.1% to 5% of the solution by weight.

5. The method of claim 3 wherein the solution further includes a dye compatible with ninhydrin for providing an initial stain on said portion of the individual'"'"'s body.

6. The method of claim 5 wherein the dye is rhodamine comprising about 0.1% to 5% of the solution by weight.

7. A reagent solution for providing a semipermanent mark on a portion of a person'"'"'s body for identification purposes comprising a solution of ninhydrin, a dye compatible with ninhydrin and capable of providing a substantially immediately visible stain on the person'"'"'s body and water with the ninhydrin and dye each comprising about 0.1% to 5% of the solution by weight.

8. The solution of claim 7 wherein the dye is rhodamine.

9. The solution of claim 7 wherein the ninhydrin comprises about 0.1% to 0.5% of the solution by weight.

10. The solution of claim 9 wherein the dye comprises about 0.01% to 0.5% of the solution by weight.

11. A method of providing a substantially insoluble and indelible mark on an individual'"'"'s body part comprising:

a) mixing ninhydrin and a compatible dye in water to form a solution in which the ninhydrin and dye each comprise less than 5% of the solution by weight; and

b) applying the solution to said body part.