Manufacturing container or tube from paper; or other manufacturi – With cutting – breaking – tearing – or abrading – And with bending
Patent
1991-09-11
1993-05-04
Terrell, William E.
Manufacturing container or tube from paper; or other manufacturi
With cutting, breaking, tearing, or abrading
And with bending
493287, 493370, 493396, 493403, B31B 125, B31B 325, B31F 700
Patent
active
052076326
ABSTRACT:
Bend lines on packaging material are obtained by creasing, which results in crease lines which are raised on one side of the material. According to the invention the raised parts of the crease lines are removed by mechanical processing, such as by milling, considerably increasing the crease lines' weakening effect on the packaging material and facilitating subsequent bending of the material.
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Terrell William E.
Tetra Alfa Holdings
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