EP 4337458 A1 20240320 - METHOD AND MACHINE FOR MANUFACTURING A FLEXIBLE ENVELOPE-LIKE BAG, PARTICULARLY WITH REINFORCEMENT
Title (en)
METHOD AND MACHINE FOR MANUFACTURING A FLEXIBLE ENVELOPE-LIKE BAG, PARTICULARLY WITH REINFORCEMENT
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES FLEXIBLEN, INSBESONDERE MIT VERSTÄRKUNG VERSEHENEN BEUTELS IN FORM EINER HÜLLE
Title (fr)
PROCÉDÉ ET MACHINE DE FABRICATION DE SAC FLEXIBLE DU TYPE ENVELOPPE, NOTAMMENT AVEC RENFORT
Publication
Application
Priority
- FR 2105064 A 20210512
- EP 2022062444 W 20220509
Abstract (en)
[origin: WO2022238305A1] According to a method for manufacturing flexible bags: - a first strip (la) of flexible material is unwound as a continuous sheet in a longitudinal direction (F); - a hem (15) is formed on each edge of the first strip (la) and the hems (15) are glued over at least one length of a first or a second flap (11, 12) on one stitching face (150), - a fold is formed in the first strip (la) along a transverse folding line (13) to fold down the first flap (11) over the second flap (12) against an internal face (14) of the first strip (la), the fold bringing, for each edge, hem (15) against hem (15) so as to obtain the bonding of the hems (15), - the strip (la) is cut along a transverse section (111) to form the bag (1) at the end of the operations. Machine implementing the method and bag thus obtained.
IPC 8 full level
B31B 70/26 (2017.01); B31B 70/00 (2017.01); B31B 70/04 (2017.01); B31B 70/10 (2017.01); B31B 70/14 (2017.01); B31B 70/16 (2017.01); B31B 70/62 (2017.01); B31B 70/81 (2017.01); B31B 70/98 (2017.01); B65D 27/00 (2006.01); B65D 27/02 (2006.01); B65D 27/14 (2006.01); B65D 30/00 (2006.01); B65D 30/20 (2006.01); B65D 33/02 (2006.01); B65D 33/18 (2006.01); B65D 81/127 (2006.01); B65D 81/38 (2006.01); B31B 155/00 (2017.01); B31B 160/10 (2017.01); B31B 160/20 (2017.01)
CPC (source: EP)
B31B 70/005 (2017.08); B31B 70/008 (2017.08); B31B 70/04 (2017.08); B31B 70/10 (2017.08); B31B 70/146 (2017.08); B31B 70/16 (2017.08); B31B 70/261 (2017.08); B31B 70/266 (2017.08); B31B 70/62 (2017.08); B31B 70/8122 (2017.08); B65D 27/02 (2013.01); B65D 27/14 (2013.01); B65D 31/005 (2013.01); B65D 31/10 (2013.01); B65D 33/02 (2013.01); B65D 33/18 (2013.01); B65D 81/1275 (2013.01); B65D 81/3858 (2013.01); B31B 70/98 (2017.08); B31B 2155/002 (2017.08); B31B 2160/10 (2017.08); B31B 2160/20 (2017.08); B31B 2170/20 (2017.08)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022238305 A1 20221117; EP 4337458 A1 20240320; FR 3122847 A1 20221118; FR 3122847 B1 20230512; FR 3122848 A1 20221118
DOCDB simple family (application)
EP 2022062444 W 20220509; EP 22728423 A 20220509; FR 2105064 A 20210512; FR 2105765 A 20210601