Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1984-06-20
1989-07-25
Gallagher, John J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156 64, 156 83, 156276, 156283, 1563088, 156324, 1563244, 428326, 428327, 604364, 604375, B32B 3100
Patent
active
048510696
ABSTRACT:
A process of making a liquid absorbing laminated structure comprising long lengths of absorptive tissues and an intermediate layer of absorptive particles is performed while the tissues are traveling in the direction of their lengths. A film of moistening liquid is transferred to a surface of a first tissue which is then supported in substantially horizontal position and showered with dry absorbent particles, which are rendered adhesive by absorption of the moistening liquid. A second tissue is superposed and the assembly is bonded together by passing it through the nip between a heated roller having a surface temperature of at least 110.degree. C. and a pressure roller. These rollers are pressed together at the nip by a pressure of at least 350 pounds per square inch and each has a surface hardness in excess of 90 Shore A Durometer.
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Reprint of article from "Index 78 Programme, Session 3: Hygiene Absorbent Products" of Paper 4 -Super-Absorbent Polymers for use with Body Exudates, by Schlauch et al., published prior to Jun. 20, 1984.
Process of making Absorbent Laminates Practiced Commercially by (Assignee, Bird Machine Company, Inc.) of South Walpole, Mass., prior to Jun. 20, 1983.
Goodchild William C.
Packard Thomas D.
Bird Machine Company, Inc.
Gallagher John J.
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