Thin fluid absorbent core-absorbent paper
AssigneeBASF SE
InventorsStephan Bauer, Katrin Baumann, Norbert Herfert, Li Guo Duan, Le Li, Xiao Yan Liu, Gao Min Sun
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Abstract
The present disclosure relates to fluid absorbent cores including at least one absorption layer, the layer including at least 80% by weight of water-absorbent polymer particles, 0 to 10% by weight of an adhesive and from 0 to 10% by weight of fibrous material, wherein the water-absorbent polymer particles within the absorption layer are water-absorbent polymer particles having a vortex of 40 s or less and having a roundness of 0.79 to 0.85 and/or a CRC of 38 g/g to 85 g/g.
Claims15
A fluid absorbent core comprising:
- at least one absorption layer, the at least one absorption layer comprising at least 80% by weight of water-absorbent polymer particles,
- 0 to 10% by weight of an adhesive, and
- from 0 to 10% by weight of fibrous material,
- wherein the water-absorbent polymer particles within the at least one absorption layer are water-absorbent polymer particles having a vortex of 40 s or less and having a roundness of 0.79 to 0.85 and a centrifuge retention capacity (CRC) of 38 g/g to 85 g/g;
- wherein the water-absorbent polymer particles have a free swell capacity (FSC) (1 min) of at least 25 g/g/s.
Water-absorbent polymer particles having a vortex of 40 s or less and having a roundness of 0.79 to 0.85 and a centrifuge retention capacity (CRC) of 38 g/g to 85 g/g;
- wherein the water-absorbent polymer particles have a free swell capacity (FSC) (1 min) of at least 25 g/g/s.
Dependencies are inferred from the claim text.