| 摘要 |
This invention relates to wet laid absorbent fibrous foams including water insoluble fibers, a binding agent, and a superabsorbent material in. The absorbent fibrous foams of this invention have controlled absorption rates and typically absorb about 60 percent of a foam centrifuge retention capacity of 0.9 percent by weight sodium chloride solution according to the centrifuge retention capacity test, in about 30 seconds or more and have a dry tensile strength of about 0.2 g/cm/gsm or more. The hot air dried absorbent fibrous foams of this invention have desirable wet and dry tensile strengths, according to the tensile strength test described herein. The hot air dried absorbent foams of this invention are produced by forming a slurry comprising water, a binding agent, and a water-insoluble fiber, adding a superabsorbent material having a gelation time of about 40 seconds or more to the slurry, removing an amount of the water from the slurry by hot air drying, and recovering an absorbent fibrous foam.
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