Title:
RELEASE LINER, ADHESIVE SHEET, AND METHOD FOR MANUFACTURING ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2021/166188
Kind Code:
A1
Abstract:
[Problem] To provide a release liner capable of suppressing bubble formation between an adhesive layer and a base material layer, an adhesive sheet, and a method for manufacturing the adhesive sheet. [Solution] A release liner 100 has a plurality of first ridges 101 and a plurality of second ridges 102 that linearly extend on one surface thereof and has an elongated shape. The first ridges extend obliquely with respect to the longitudinal direction D1 of the release liner and reach edges 103 of the release liner in the width direction D2 orthogonal to the longitudinal direction. The second ridges extend while intersecting the first ridges and reach the edges of the release liner. The plurality of first ridges and the plurality of second ridges form parallelogram-shaped recessed sections 104 as viewed from a direction perpendicular to the surface of the release liner. In the parallelogram, each of the two angles θ opposing in the longitudinal direction D1 is smaller than 90°.
Inventors:
SAITO SHIGERU (JP)
SUGIURA SHOGO (JP)
SUGIURA SHOGO (JP)
Application Number:
PCT/JP2020/006915
Publication Date:
August 26, 2021
Filing Date:
February 20, 2020
Export Citation:
Assignee:
LINTEC CORP (JP)
International Classes:
C09J7/40
Foreign References:
| JP2009001667A | 2009-01-08 | |||
| JP2011000769A | 2011-01-06 | |||
| JP2005319752A | 2005-11-17 | |||
| JP2014129454A | 2014-07-10 |
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
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