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(11) | EP 2 047 765 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Application of zipper lengths to a web |
(57) The apparatus comprises a rotary turret 18 having circumferentially spaced grooves
30a, 30b, 30c for receiving pre-cut lengths of zipper 58 consisting of first and second
interengageable profile strips. Sliders 46 for engaging and re-engaging the profiles
are mounted on the zipper lengths by a rotary slider applicator 42. A web 12 of plastics
material is fed beneath the turret 18 and receives the zipper lengths which are secured
to the web by a heated sealing bar 60. The web with zippers attached is fed to a form-fill-seal
machine 20 on which the web is formed into individual bags which are filled and separated
from one another.
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