Tampon pledget for increased bypass leakage protection

  • US 9,687,389 B2
  • Filed: 05/18/2016
  • Issued: 06/27/2017
  • Est. Priority Date: 11/08/2006
  • Status: Active Grant
First Claim
Patent Images

1. A tampon pledget for a super absorbency tampon, comprising:

  • a bottom pad having a length that is between about 1 inch and about 4 inches, and a width that is between about 1 inch and about 4 inches;

    a top pad having a width of about 2 inches and a length of about 4 inches;

    a fiber weight distribution ratio of the bottom pad to the top pad being between about 0.75;

    1 and about 1.5;

    1; and

    wherein prior to folding the bottom pad and the top pad to form a compressed tampon pledget, the top pad and the bottom pad are in a cross-pad configuration, the cross-pad configuration having an overlap portion that is formed where the top pad and the bottom pad overlap and a plurality of non-overlap portions that are formed where the top pad and the bottom pad do not overlap,wherein the cross-pad configuration is folded, compressed, and heated to form a tampon pledget with a generally cylindrical shape having a main body region, an insertion end, and a bottom end, the compressed tampon pledget having a greater absorption potential near the bottom end of the tampon pledget, the tampon pledget having an average positive displacement rate that is equivalent to a volumetric rate increase of the tampon pledget in a modified syngyna absorbency test divided by a dry weight of the tampon pledget, the average positive displacement rate being greater than about 0.2 ml/min/gram and resulting in an expansion of the tampon pledget to a slight teardrop shape upon liquid absorption.

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