| 摘要 |
A method for manufacturing pressure sensitive adhesive tear tape for use in tearing an overwrap material includes providing a web of a polymeric material which is biaxially-oriented, slitting the web into a plurality of side by side continuous tapes, drawing each continuous tape longitudinally to effect additional longitudinal orientation of the tape and winding each tape into a separate spool. In a second separate process, the tapes side by side are unwound and passed through a printing line where a coating of a pressure sensitive adhesive is applied to the first tape surface and a coating of a release agent is applied to the second tape surface to provide a release action relative to the adhesive. Each continuous tape with the adhesive coating thereon is wound into a respective cylindrical tape spools for supply to the packaging line.
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