Production method of mold having recessed pattern, and manufacturing method of pattern sheet
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United States of America Patent
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Oct 12, 2021
Grant Date -
Mar 7, 2019
app pub date -
Oct 31, 2018
filing date -
May 10, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
Provided are a production method of a mold having a recessed pattern, and a manufacturing method of a pattern sheet having good accuracy and excellent productivity. The production method of a mold includes: a step of preparing an electroform having a protruding pattern and a mold having a first mold and a second mold forming a cavity; a step of fixing the electroform excluding an end portion of the electroform to the first mold; a clamping step of clamping the electroform excluding the end portion of the electroform and a region of the protruding pattern between the first mold and the second mold to form the cavity; and an injection step of filling the cavity with a resin.
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