EP 0112660 A3 19850828 - PINCH BOTTOM SACKS
Title (en)
PINCH BOTTOM SACKS
Publication
Application
Priority
GB 8236310 A 19821221
Abstract (en)
[origin: EP0112660A2] An easy-open pinch bottom sack 12 min and method of manufacturing the same, comprising a tape (21) which is located between at least one folded ply and an adjacent wall of the sack (12 min ) at one end thereof and which has been secured to said at least one ply of a plurality of stepped or staggered plies (16) at that end of the sack (12 min ) by means of a hot melt adhesive, prior to the stepped or staggered plies (16) being folded and adhered together during manufacture of the sack (12 min ). Preferably, the tape (21) is impregnated with hot melt adhesive which has been re-melted immediately prior to the application of the tape (21) to the stepped or staggered plies (16) at the one end of the sack (12 min ) in a multi-wall tubular form, which plies (16) have been subsequently folded and adhered to each other.
IPC 1-7
IPC 8 full level
B65D 30/08 (2006.01)
CPC (source: EP)
B65D 31/04 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0112660 A2 19840704; EP 0112660 A3 19850828; GB 2132170 A 19840704
DOCDB simple family (application)
EP 83307242 A 19831128; GB 8236310 A 19821221