METHOD FOR APPLYING A SUPERABSORBENT POLYMER ONTO A FIBROUS SHEET MATERIAL AND A DOUBLE-OR MULTIPLY FIBROUS MATERIAL CONTAINING SUPERABSORBENT MATERIAL
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United States of America Patent
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Issued Date -
Sep 4, 2014
app pub date -
Jun 8, 2012
filing date -
Jun 10, 2011
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Abandoned
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Abstract
A method is provided for applying a superabsorbent polymer to a fibrous sheet material. The fibrous sheet material may be a nonwoven material or a tissue paper. The method includes applying a crosslinkable polymeric dispersion or solution onto the fibrous sheet material by printing technique and in a separate step applying a crosslinking agent onto the fibrous sheet material by printing technique, wherein said crosslinking agent accomplishes crosslinking of the crosslinkable polymer to form a superabsorbent material. A tissue or nonwoven product-includes at least two plies that are bonded together, wherein a crosslinked superabsorbent material is applied in a printed pattern between the plies, said tissue or nonwoven product having a DIN54540 Water Absorption between 15 and 100 g/g.
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