EP 1615834 A1 20060118 - LIQUID-TRAPPING BAG AND METHOD OF MAKING IT
Title (en)
LIQUID-TRAPPING BAG AND METHOD OF MAKING IT
Title (de)
FLÜSSIGKEITSAUFFANGBEUTEL UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
POCHE AVEC PIEGE A LIQUIDES ET PROCEDE DE FABRICATION
Publication
Application
Priority
- US 2004006769 W 20040305
- US 45216803 P 20030305
- US 45213803 P 20030305
- US 79514904 A 20040304
- US 79434904 A 20040304
Abstract (en)
[origin: WO2004078609A1] A bag for use in vacuum packaging comprises a first and second overlapping panels. A plurality of channels having a plurality of baffles is formed on one or more of the panels for evacuating air or other gases from inside the bag using suction, while preventing liquids from being drawn inside it. In one embodiment, the forming of a bag involves between cooling and laminating rolls includes feeding a gas-impermeable material to a nip between the rolls. Resin is extruded to the nip so that it fills a plurality of cavities of the cooling roll, forming an inner layer that adheres to the gas-impermeable material. The resultant sheet is folded to form the first and second panels and they are sealed to from an envelope.
IPC 1-7
IPC 8 full level
B31B 41/00 (2006.01); B32B 3/26 (2006.01); B65B 9/04 (2006.01); B65B 61/02 (2006.01); B65D 33/00 (2006.01); B65D 81/20 (2006.01)
CPC (source: EP KR US)
B32B 3/04 (2013.01 - US); B32B 3/26 (2013.01 - EP); B32B 3/30 (2013.01 - US); B32B 27/08 (2013.01 - US); B32B 27/32 (2013.01 - US); B65B 9/042 (2013.01 - EP); B65B 61/025 (2013.01 - EP); B65D 33/00 (2013.01 - EP KR); B65D 33/004 (2013.01 - EP); B65D 33/16 (2013.01 - KR); B65D 33/25 (2013.01 - KR); B65D 81/2038 (2013.01 - EP); B31B 2160/10 (2017.07 - EP KR US); B32B 2307/31 (2013.01 - US); B32B 2307/7242 (2013.01 - US); B32B 2398/20 (2013.01 - US); B32B 2439/46 (2013.01 - US); B65D 81/2023 (2013.01 - EP)
Citation (search report)
See references of WO 2004078609A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004078609 A1 20040916; AU 2004217917 A1 20040916; CA 2517808 A1 20040916; EP 1615834 A1 20060118; KR 20050115890 A 20051208; MX PA05009456 A 20051123
DOCDB simple family (application)
US 2004006769 W 20040305; AU 2004217917 A 20040305; CA 2517808 A 20040305; EP 04718048 A 20040305; KR 20057016431 A 20050902; MX PA05009456 A 20040305