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Absorbent nonwoven fabric and its production

  • US 5,607,550 A
  • Filed: 02/07/1995
  • Issued: 03/04/1997
  • Est. Priority Date: 08/13/1992
  • Status: Expired due to Term
First Claim
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1. A wet-laid nonwoven fabric comprising a blend of 1 to 50% by weight of fibres of weight 2 to 30 decitex per filament and length 3 to 100 mm of a water-swellable water-insoluble superabsorbent polymer, which is a crosslinked copolymer of 50 to 95% by weight ethylenically unsaturated carboxylic monomer and 5 to 50% by weight copolymerisable ethylenically unsaturated monomer, and 99 to 50% by weight of less absorbent fibres having an absorbency of less than 10 g/g measured by retention to centrifuging of a 0.9% by weight saline solution.

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