Method for extruding a plastic member with a roughened surface

Details Method for extruding a plastic member with a roughened surface Method for extruding a plastic member with a roughened surface

B - Operations, Transporting

29

C

18/783

B29C 47/06 (2006.01)

Patent

CA 2039621

ABSTRACT OF THE DISCLOSURE A carrier strip for holding labels to a support, such as the edge of a shelf, includes a rear wall which can be attached to the support and a transparent front wall which is connected to the rear wall so as to form a pocket between the walls. The carrier strip is made by extruding a plastic composition at relatively high pressure through a die which incompletely smooths the surface regularities resulting from the relatively high extrusion pressure. This disrupts the longitudinal striations or dielines which are characteristic of extruded members and which might otherwise cause undesirable reflections when a bar code reader is used to read a bar code printed on a label in the pocket. - 1 -

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