Gravure coater test apparatus and gravure coater
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United States of America Patent
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Jul 23, 2024
Grant Date -
May 18, 2023
app pub date -
Apr 6, 2021
filing date -
Apr 6, 2021
priority date (Note) -
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Abstract
A gravure coater test apparatus includes a gravure roll and a backup roll which are circumscribed to each other, a motor which drives the gravure roll partially submerged in a water-based pressure-sensitive adhesive for coating, a controller which adjusts the rotational speed of the motor, a doctor blade which is selected from a plurality of types to scrape the water-based pressure-sensitive adhesive from the surface of the gravure roll being rotated, and an infrared analyzer which allows at least one of the type of the water-based pressure-sensitive adhesive corresponding to the selected doctor blade, the uniformity of the coating surface, and the amount of the coated water-based pressure-sensitive adhesive to be confirmed.
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