Apparatus for producing a tear line in the multi-layered foil of a cigarette pack

摘要: A multi-layer bonded foil 10 which forms the inner wrapper of a cigarette pack is provided with tear line 14 to facilitate opening flap 15. The formed by fixed lower tool 25 having raised rib 28 flanked grooves 29, 30 and reciprocable upper 20 pointed edge 21 movable between guide supports 22, 23. heated forced into stretch-weaken its polyester layer 11 central aluminum 12, simultaneously heat soften deform polyethylene 13.