DIAPERS, DISPOSABLE DIAPERS AND DISPOSABLE DIAPERS WITH WATER-PROOF LAYER

• US 3,759,261 A
• Filed: 03/09/1972
• Issued: 09/18/1973
• Est. Priority Date: 03/09/1972
• Status: Expired due to Term

• Current Assignee: Rong-Shuang Wang
• Original Assignee: Rong-Shuang Wang
• Inventors: Wang, Rong-Shuang
• Primary Examiner(s): Rosenbaum, Charles F.
• Application Number:
  US05/233,160
• Time in Patent Office: 558 Days
• Field of Search: 128/284,287
• US Class Current: 604/361
• CPC Class Codes: A61F 13/42 with wetness indicator or alarm

Abstract

A diaper which is capable of providing a readily visible indication when wet includes an inner layer of absorbent material, a layer carrying a printed pattern, and at least one outer layer which is of sufficient density as to conceal the printed pattern when the diaper is dry while rendering the printed pattern readily visible when the diaper is wet.

Claims

1. A diaper capable of providing a readily visisble indication of a wetness condition of the body underneath the diaper, comprising:

a carrier layer of material, means providing at least one color on said carrier layer, and means covering said color with said color contrasting with said covering means and said covering means being of a density for rendering said color substantially invisible when said covering means is dry while rendering said color visible when said covering menas is wet, said color being dark relative to said carrier layer and said covering means including an outer layer of relatively lightcolored material overlying said dark color to mask said color when said outer layer is dry, said color being disposed in a pattern on one side of said carrier layer and being water insoluble, whereby the condition of the body beneAth the article may be readily determined upon inspection of the covering means.

2. A diaper according to claim 1, wherein said pattern is printed on said carrier layer.

3. A diaper according to claim 2 wherein said one side of said carrier layer faces outwardly.

4. A diaper according to claim 2 wherein said one side of said carrier layer faces inwardly.

5. A diaper accroding to claim 1 wherein said covering means is fabricated of a low-density material.

6. A diaper according to claim 1 including at least one absorbent layer underlying said carrier layer and a waterproof layer overlying said covering means.