Method of manufacturing external cover edge of molded cup lid and product manufactured by the same
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United States of America Patent
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Apr 18, 2017
Grant Date -
Jan 26, 2017
app pub date -
Apr 15, 2014
filing date -
Apr 15, 2014
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Abstract
A method of manufacturing an external cover edge of a molded cup lid and a product manufactured by the method includes an intermediate product of the molded cup lid made of plant fiber and manufactured by both “pulp suction shaping” and “thermal compression shaping” processes. A protruding-out outer cover edge is formed around the periphery of the intermediate product.
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