EP 2100821 B1 20100519 - Two-ply paper sack
Title (en)
Two-ply paper sack
Title (de)
Zweischichten-Papiersack
Title (fr)
Sac en papier à double pli
Publication
Application
Priority
EP 08152531 A 20080310
Abstract (en)
[origin: EP2100821A1] The invention relates to the field of sacks, and especially to deaeration thereof. A sack (1), wherein at least part of a sack wall of the sack comprises an inner ply (2), an outer ply (3) and an air permeable moisture barrier film (4) arranged between the inner ply (2) and the outer ply (3) is provided. A parameter of the outer ply (3) relates to the parameter of the inner ply (2) so as to form an interply space between the inner and outer ply if an overpressure is present inside the sack. The sack (1) is adapted to form at least one film-ply deaeration space between the moisture barrier film (4) and the outer ply (3) within the at least part of the sack wall if the overpressure is present. Also provided are a sack wall material, a method for deaeration of a sack (1) and a method for manufacturing a sack.
IPC 8 full level
B65D 33/01 (2006.01)
CPC (source: EP)
B65D 31/04 (2013.01); B65D 33/01 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2100821 A1 20090916; EP 2100821 B1 20100519; AT E468276 T1 20100615; DE 602008001308 D1 20100701; WO 2009112225 A1 20090917
DOCDB simple family (application)
EP 08152531 A 20080310; AT 08152531 T 20080310; DE 602008001308 T 20080310; EP 2009001670 W 20090309