B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 3/22 (2006.01) B31B 45/00 (2006.01) B31F 1/28 (2006.01) B65D 3/04 (2006.01)
Patent
CA 2260260
The invention concerns a method for making a rigid corrugated cardboard, comprising, a preliminary step of producing at least a single faced ply (21) of given length by gluing a flute to a single faced cover. The invention is characterised in that it consists in the following steps: a) bending the single faced ply (21) according to a desired shape; b) gluing the bent single faced ply flute tops; c) gluing at least a double faced cover (22) of the same width as the single faced ply on the single faced ply (21) such that it matches the said ply bent shape. The invention also concerns a device for implementing the method and the rigid corrugated cardboard obtained by the method.
L'invention concerne un procédé de fabrication d'un carton ondulé rigide comprenant, au préalable, une étape de production d'au moins une nappe simple face (21) de largeur donnée par collage d'une cannelure à une couverture simple face. Selon l'invention, on réalise les étapes suivantes: a) on cintre selon une forme désirée la nappe simple face (21), b) on encolle les sommets de la cannelure de la nappe simple face cintrée, c) on colle au moins une couvertue double face (22) de même largeur que la nappe simple face (21) sur ladite nappe simple face de manière à ce qu'elle épouse la forme cintrée de ladite nappe. L'invention concerne également un dispositif de mise en oeuvre du procédé et le carton ondulé rigide obtenu selon le procédé.
Goudreau Gage Dubuc
Smurfit Worldwide Research Europe
LandOfFree
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