Process for forming plastic corrugated container with ultrasonically formed score lines
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United States of America Patent
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Sep 19, 2023
Grant Date -
May 13, 2021
app pub date -
Nov 5, 2020
filing date -
Dec 24, 2013
priority date (Note) -
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Abstract
A corrugated plastic box and a method for manufacturing a corrugated plastic box from a blank are provided. The method includes the steps of forming rounded edge seals on the perimeter edges of the blank, pre-sealing portions of the blank to form a plurality of areas in which major and minor flap slots and a glue tab are desired, ultrasonically scoring the blank to form a plurality of flap score lines, and cutting the blank through the plurality of pre-sealed flap slots and glue tab, leaving a sealed edge.
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