EP 0300855 B1 19911211 - WEB WITH LONGITUDINAL REINFORCEMENT, ITS MANUFACTURE AND ITS USE IN PACKAGING METHODS AND DEVICE FOR MAKING SUCH A WEB
Title (en)
WEB WITH LONGITUDINAL REINFORCEMENT, ITS MANUFACTURE AND ITS USE IN PACKAGING METHODS AND DEVICE FOR MAKING SUCH A WEB
Publication
Application
Priority
FR 8709063 A 19870626
Abstract (en)
[origin: EP0300855A1] Method for continuously producing a longitudinal reinforcement on a flexible web of plastic film, characterised in that, starting with a web, which is continuous overall and has no reinforcement, the web is made to progress in a longitudinal direction in a relative movement and in at least one longitudinal folding stage, at least two adjacent longitudinal folding zones (3A, 3B) of the web are conveyed progressively in a longitudinal direction and/or in a transverse direction to overlap flat on one another in order to form at least one longitudinal pleat (7) forming at least a part of the longitudinal reinforcement zone (2), which permits the manufacture of a web which can be applied more especially to the formation of packaging which comprises at least one longitudinal reinforcement zone (2) consisting, at least partially, of N longitudinal folding zones (3a, 3b, 3N) of the web (1), adjacent to one another, with at least substantially flat overlapping, at least partially over one another, in the same longitudinal region of the web (1), N being a positive integer which is at least equal to two. <IMAGE>
IPC 1-7
IPC 8 full level
B65B 11/04 (2006.01); B65B 25/14 (2006.01); B65B 61/00 (2006.01); B65D 65/22 (2006.01)
CPC (source: EP US)
B65B 11/045 (2013.01 - EP US); B65B 25/148 (2013.01 - EP US); B65B 61/00 (2013.01 - EP US); B65D 65/22 (2013.01 - EP US); B65B 2220/12 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB SE
DOCDB simple family (publication)
EP 0300855 A1 19890125; EP 0300855 B1 19911211; DE 3866809 D1 19920123; FR 2617123 A1 19881230; FR 2617123 B1 19891229; US 4905451 A 19900306
DOCDB simple family (application)
EP 88401615 A 19880624; DE 3866809 T 19880624; FR 8709063 A 19870626; US 21097288 A 19880624