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Method for applying a superabsorbent polymer onto a fibrous sheet material and a double-or multiply fibrous material containing superabsorbent material
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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机译:将超吸收性聚合物施加到纤维片材上的方法以及含有超吸收性材料的双重或多重纤维材料
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摘要
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 comprises: applying a crosslinkable polymeric dispersion 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 said crosslinkable polymer to form a superabsorbent material and wherein a neutralizing agent is added together with the crosslinking agent or in a separate step. The invention further refers to a tissue or nonwoven product comprising 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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