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US 11,432,969 B2Granted
Ultra thin laminate with particulates in dense packages
AssigneeEam Corporation
InventorsPaul M. Ducker, Steven S. Harlen
Life of this patent
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AssigneeEam Corporation
InventorsPaul M. Ducker, Steven S. Harlen
Estimating the term…
The present invention is directed to a method of forming a laminate absorbent structure, and a resulting package containing a single continuous running web of the laminate material. Notably, formation of the material is effected by blending a curtain of adhesive fibers with a curtain of particulate material, and depositing the mixture on a moving substrate, preferably provided in the form of a tissue layer. A second substrate, also preferably comprising a tissue layer, is applied on top of the deposited mixture, and pressure applied to form the laminated structure. Notably, attendant to packaging of the laminated material, adjacent layers of the material tend to nest into one another, to form a sandwich in which the density of the material in the package is more than 1.5 times the density of the material after its removal from the package.
A package containing a single continuous running web of laminated material within the package comprising adjacent layers of the laminated material, where the laminated material comprises a first layer of tissue laminated to a mixed layer of superabsorbent particulate mixed with adhesive fibers laminated to a second layer of tissue, to form a sandwich, in which the Material Density of the laminated material in the package is more than 1.5 times the Density of the laminated material after removing it from the package, where a mixture of the particulate and the adhesive fibers form a pressure sensitive three-dimensional lattice structure where the particulate is suspended within a matrix, where densification in the package is accomplished through interlocking and nesting of rough surfaces of adjacent tissue layers of the laminated material within the package, and where the mixed layer is free of cellulosic or synthetic fibrous additives.
A roll containing a continuous running web of laminated material comprising a first layer of tissue laminated to a layer of superabsorbent particulate mixed with adhesive fibers laminated to a second layer of tissue to form a sandwich, in which the Material Density of the laminated material in the roll is more than 3 times the Density of the laminated material when it is removed from the roll, where a mixture of the particulate and the adhesive fibers form a pressure sensitive three-dimensional lattice structure where the particulate is suspended within a matrix, where densification in the package is accomplished through interlocking and nesting of rough surfaces of adjacent tissue layers of the laminated material within the package, and where the mixed layer is free of cellulosic or synthetic fibrous additives.
Dependencies are inferred from the claim text.