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Process for making an absorbent core with strain resistant core cover

  • US 9,326,896 B2
  • Filed: 04/29/2009
  • Issued: 05/03/2016
  • Est. Priority Date: 04/29/2008
  • Status: Active Grant
First Claim
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1. A process for making an absorbent core comprising at least a first nonwoven core cover and a superabsorbent polymer material, the process comprising steps ofproviding the first nonwoven core cover having an initial air permeability of less than 60 m3/(m2·

  • min) according to EDANA 140.2-99;

    depositing the first nonwoven core cover on a support that includes open areas;

    depositing a superabsorbent polymer material onto the nonwoven core cover; and

    straining the first nonwoven core cover by a first prescribed strain of 10-20% such that the initial air permeability of the first nonwoven core cover is increased by less than 18%.

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