EP 0077131 B1 19870616 - MANUFACTURE OF PACKAGING CONTAINERS
Title (en)
MANUFACTURE OF PACKAGING CONTAINERS
Publication
Application
Priority
US 31081781 A 19811013
Abstract (en)
[origin: EP0077131A2] To manufacture reinforced corrugated cardboard for use as a packaging container, one face of a core liner [A] which has been corrugated in a corrugater [2] is adhered to a side liner [B]. There is then applied to the corrugated core liner [A] firstly an aqueous solution of corn starch, by means of a coating apparatus [4], and secondly a reinforcing agent [D], by means of an applicator [5]. Another side liner [C] is then adhered to the corrugated core liner [A]. Score lines are formed in the resulting corrugated cardboard, by means of a scorer apparatus [7], before the reinforcing agent [D] has hardened.
IPC 1-7
IPC 8 full level
B31B 1/25 (2006.01); B31B 45/00 (2006.01); B31B 50/25 (2017.01); B31F 1/28 (2006.01)
CPC (source: EP US)
B31F 1/2886 (2013.01 - EP US); B31B 50/25 (2017.07 - EP); B31B 2100/00 (2017.07 - EP); B31B 2110/35 (2017.07 - EP US); B31B 2120/70 (2017.07 - EP)
Citation (examination)
JP S55142482 A 19801107 - NIPPON ELECTRIC CO
Designated contracting state (EPC)
IT NL SE
DOCDB simple family (publication)
EP 0077131 A2 19830420; EP 0077131 A3 19840905; EP 0077131 B1 19870616; ES 516465 A0 19831016; ES 8308952 A1 19831016
DOCDB simple family (application)
EP 82304832 A 19820914; ES 516465 A 19821013