Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1984-02-23
1986-07-29
Dawson, Robert A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
5484, 156238, 156540, 4272082, 428 78, B32B 3112
Patent
active
046029753
ABSTRACT:
Apparatus and method for developing and applying an adhesive strip and protective cover strip on the backing side of a hospital underpad. The apparatus is positioned along the production line where the folded hospital underpad material has been fabricated and is ready for cutting into individual pads. The apparatus draws a continuous ribbon from a supply spool, applies a strip of liquid plastic melt adhesive to the upper side of this ribbon, and then inverts the ribbon and directs it, with the adhesive strip on the underside, onto the intermediate layer of the folded underpad material where rollers press it into the desired position. The plastic melt adhesive fuses to the portion of the hospital underpad backing layer with which it comes in contact. After the folded sheet material is cut into individual hospital underpads, the ribbon serves as a protective strip which may be easily pulled away from the adhesive strip when the hospital underpad is to be placed in service.
REFERENCES:
patent: 2898816 (1959-08-01), Keely
patent: 4097943 (1978-07-01), O'Connell
patent: 4214933 (1980-07-01), Off et al.
Bissell Henry M.
Dawson Robert A.
Paper-Pak Products, Inc.
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