PERFECT-BOUND BOOKLET AND METHOD FOR MANUFACTURING PERFECT-BOUND BOOKLET
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United States of America Patent
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Issued Date -
Oct 3, 2024
app pub date -
Jan 28, 2024
filing date -
Mar 28, 2023
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Abstract
A perfect-bound booklet includes a sheet set that is a stack of multiple sheets and multiple adhesive layers provided at an end of each sheet in the sheet set and interposed between the sheets and peelably bonding the sheets together, the multiple adhesive layers containing a thermoplastic adhesive agent, and the amount of the thermoplastic adhesive agent in the multiple adhesive layers changes from each of a first surface side and a second surface side of the booklet toward the middle of the booklet in the thickness direction.
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