Method and apparatus for sealing absorbent materials in an absor

Details Method and apparatus for sealing absorbent materials in an absor Method and apparatus for sealing absorbent materials in an absor

1993-12-01

1999-05-04

Engel, James

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With work feeding or handling means

156361, 156362, 156291, 156517, B32B 3100

Patent

active

059001097

ABSTRACT:
A method and apparatus for enveloping a series of absorbent cores with a fluid-permeable layer includes a first web supplying mechanism for providing a first layer of fluid-permeable material, and a depositing mechanism for positioning a series of absorbent cores on the first layer. Each of the absorbent cores defines a periphery thereof and includes superabsorbent material therein. A second web supplying means provides a second layer of fluid-permeable material to sandwich the absorbent cores between the first and second layers. A sealing mechanism secures the first layer to the second layer along an attachment region thereof which is located adjacent to at least a pair of side edge regions of the absorbent cores. The attachment region is constructed to substantially prevent movement of superabsorbent material from the absorbent cores through the attachment region. A separating mechanism removes selected regions of the first and second layers which are located adjacent to the attachment region and are spaced from the absorbent cores.

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