Flexible bag and method

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 30/10 (2006.01) B65D 33/06 (2006.01) B65D 33/08 (2006.01) B65D 33/25 (2006.01) B65D 75/00 (2006.01) B65D 75/52 (2006.01) B65D 75/56 (2006.01) B65D 75/58 (2006.01) B65D 77/06 (2006.01)

Patent

CA 2434794

A standup bags made of a flexible material and methods of producing these standup bags. In particular, the standup bags have at least one substantially flat surface which is free of seams and folds. When the bag is filled with a flowable substance, the pressure exerted by the fluid upon the flat surfaces allows the bag to be self-standing. Additionally, the standup includes at least one contour structure that defines the geometry of the bag and also contributes to the standup bag's ability to be self-standing when even partially filled with a flowable substance.

L'invention concerne des sacs à fond plat composés d'un matériau souple, ainsi que des procédés permettant de fabriquer ces sacs à fond plat. Plus particulièrement, les sacs à fond plat décrits dans cette invention présentent au moins une surface essentiellement plane qui est exempte de joints et de plis. Lorsque le sac est rempli avec une substance fluide, la pression exercée par le fluide sur les surfaces planes permet au sac d'être autoporteur. En outre, le fond plat comprend au moins une structure de contour qui définit la géométrie du sac et qui permet également au sac à fond plat d'être autoporteur même lorsque le sac est partiellement rempli avec la substance fluide.

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