EP 0974450 A2 20000126 - Window bags and a method of manufacture thereof
Title (en)
Window bags and a method of manufacture thereof
Title (de)
Fenstersack und Herstellungsverfahren dafür
Title (fr)
Sac à fenêtre et son procédé de production
Publication
Application
Priority
GB 9815991 A 19980723
Abstract (en)
A method of manufacturing a bag (1) with at least one window is provided. The method comprises the steps of firstly providing at least one window (8) in a sheet (2) of a first material. Secondly a second material is laminated to at least one surface of the sheet (2) of the first material such that the second material seals around the edges of the or each window (8). Lastly a bag (1) is formed from the laminated, windowed sheet of material such that one or more of the inner and/or outer surfaces of the bag (1) has the second material laminated thereto. The first material preferably comprises paper while the second material preferably comprises a plastics material. The lamination may be achieved by means of an adhesive or by heat-welding. <IMAGE>
IPC 1-7
IPC 8 full level
B31B 19/82 (2006.01); B31B 39/00 (2006.01)
CPC (source: EP US)
B31B 70/00 (2017.07 - EP); B31B 70/826 (2017.07 - EP US); B31B 70/81 (2017.07 - EP); B31B 70/82 (2017.07 - EP); B31B 2155/00 (2017.07 - EP); B31B 2160/10 (2017.07 - EP); B31B 2170/20 (2017.07 - EP)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0974450 A2 20000126; EP 0974450 A3 20000426; GB 2339718 A 20000209; GB 9815991 D0 19980923; GB 9917243 D0 19990922
DOCDB simple family (application)
EP 99305853 A 19990723; GB 9815991 A 19980723; GB 9917243 A 19990723