Back to results
US 2003/0114059 A1Published application
Highly absorbent composite sheets and methods of manufacturing the same
OwnerMigaku Suzuki, Shingo Moriinventors
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerMigaku Suzuki, Shingo Moriinventors
Estimating the term…
An absorbent composite sheet mainly consisting of a fibrous substrate web, a super absorbent polymer, and a bonding component bonding both of them with each other, wherein (a) the fibrous substrate web is a non-bonded web with a few of the constituent fibers bonded with each other, (b) a liquid mixture system is used of a medium mainly consisting of the super absorbent polymer and the bonding component. (c) a composite web is formed by adding the liquid mixture system to the fibrous substrate web, and (d) a liquid component is separated from the composite web so that fixing of the super absorbent polymer to the fibrous substrate web and bonding of the webs of the fibrous substrate web with one another are carried out at the same time. Methods of manufacturing such absorbent composite sheets are also provided.
A method of manufacturing a highly absorbent composite sheet mainly consisting of a fibrous web substrate, a super absorbent resin, and a bonding agent to bond said substrate and said super absorbent resin, wherein (a) said fibrous web substrate is an unbonded web having substantially no bonding portions among its constituent fibers, (b) said super absorbent resin and said bonding agent are dispersed in a liquid mixture containing an aqueous medium which does not swell said absorbent resin, (c) the resulting dispersion mixture is added to said unbonded fibrous web substrate to obtain a composite web, and (d) a liquid component is removed from said composite web, whereby fixing of said super absorbent resin onto said fibrous web substrate is effected simultaneously with bonding of constituent webs of said fibrous web substrate with one another.
Dependencies are inferred from the claim text.