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Moisture indicator apparatus and method

  • US 4,738,674 A
  • Filed: 05/19/1986
  • Issued: 04/19/1988
  • Est. Priority Date: 11/12/1985
  • Status: Expired due to Fees
First Claim
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1. A moisture indicator for use in conjunction with a garment such as a diaper, hospital underpad or the like, having an outer ply of non-opaque, moisture impervious material and an inner ply of moisture absorbing material, comprising in combination:

  • a wicking strip capable of supporting capillary action along its length, said wicking strip extending from one end of the garment to the other end of the garment;

    moisture indicating substance which visually indicates contact with moisture;

    said moisture indicating substance positioned at a portion of said wicking strip;

    means for affixing said wicking strip to the inside surface of the outer ply of the garment such that moisture contacting said wicking strip flows by capillary action along the length of said wicking strip to contact said moisture indicating substance to visually indicate the presence of moisture; and

    a moisture impervious strip positioned at least partially along the length of said wicking strip to prevent leaking of the moisture from said wicking strip at that portion of the wicking strip beyond the actual point where moisture is present.

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