Foam-fiber composite and process
AssigneePersonal Products Company
InventorsShmuel Dabi, Kays B. Chinai
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Abstract
A foam-fiber composite, useful as an absorbent for sanitary napkins is disclosed. It is a resilient, absorbent structure made from large particles of an amino-ether hydrophilic foam (and optionally a superabsorbent and wood pulp), which by use of a carding machine is uniformly distributed in, and heat bonded to a fibrous matrix, which matrix is preferably made from two different kinds of fibers, one of which is low melting at the bonding temperatures used in the oven, e.g., polyethylene and the other high melting, e.g., polyester.
Claims25
A resilient absorbent foam-fiber composite comprising large particles of an amino-ether hydrophilic foam uniformly distributed in and heat bonded to a thermoplastic fibrous matrix.
The process of preparing a resilient, absorbent foam-fiber composite comprising an animo-ether hydrophilic foam uniformly distributed in and heated bonded to a thermoplastic fibrous matrix which comprises blending small pieces of amino-ether hydrophilic foam and of thermoplastic fiber so as to form a uniform web, heating said web to thermally bond the thermoplastic fiber to the foam thereby to form the composite.
Dependencies are inferred from the claim text.