B - Operations – Transporting – 31 – F
Patent
B - Operations, Transporting
31
F
154/30.02
B31F 1/28 (2006.01)
Patent
CA 1090688
METHOD AND APPARATUS FOR LAMINATING PLANAR AND CORRUGATED SURFACE DEFINING LAYERS OF SHEET MATERIAL Abstract of the Disclosure According to the method, the corrugated surface defin- ing layer is passed about a carrier roll having a pressure dir- ferential thereacross to retain the layer thereon, the carrier roll is rotated in juxtaposition with an adhesive applicator roll, and while the adhesive applicator roll is rotated, an adhe- sive is repeatedly successively deposited on the applicator roll in spaced parallel lines crosswise of the ridges of the corru- gates surface defining layer, the lines of adhesive and the ridges are contacted with one another so that portions of the lines are deposited on the ridges in series of spaced, pressure deformable spots of adhesive extending along the lengths of the ridges, and the balance of the lines of adhesive is removed from the applicator roll to a neutral zone separate from the layers. Additionally, the planar surface of the other layer is contacted with the series of spots and the two layers are pressed together so that they splay the respective spots into the spaces there- between and form substantially continuous lines of adhesive along the lengths of the ridges, by which the two layers bond together including at points on the planar surface of the other layer coinciding with the spaces between the spots.
302684
Morris Richard M. Jr.
Wolvin A. Dale
Osler Hoskin & Harcourt Llp
Weyerhaeuser Company
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