EP 0155100 A1 19850918 - Manufacture of gusseted bags.
Title (en)
Manufacture of gusseted bags.
Title (de)
Herstellung von Seitenfaltensäcken.
Title (fr)
Fabrication de sacs à plis latéraux.
Publication
Application
Priority
ZA 848662 A 19840221
Abstract (en)
A method of manufacturing a pinch bottomed gusseted sack is provided. Paper is fed into a tuber which forms gussets (17) and an adhesive (16) is applied to the inside edges of the gussets prior to feeding the tubes into the feeder mechanism of a valve bottomer machine in which the manufacture of the sack is completed. The adhesive on the gussets prevents the folds of the gussets from opening when the tubes are picked up by suction cups by a rotary feeder.
IPC 1-7
IPC 8 full level
B31B 19/62 (2006.01)
CPC (source: EP US)
B31B 70/00 (2017.07 - EP); B31B 70/62 (2017.07 - EP US); B31B 2160/10 (2017.07 - EP)
Citation (search report)
- DE 3043491 A1 19820609 - NATRONAG PAPIERPROD GMBH [DE]
- GB 1239906 A 19710721 - ROBINSON E S & A LTD
- US 2871771 A 19590203 - MERCER LEWIS P
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 85301157 A 19850221; AU 3903885 A 19850221