JP-2022530008-A5 -

Dates

Publication Date

20230501

Application Date

20200422

Description

The descriptions of elements in the figures should be understood to apply equally to corresponding elements in other figures unless otherwise indicated. The present invention should not be considered limited to the specific embodiments described above, as such embodiments are described in detail to facilitate the explanation of various aspects of the invention. Rather, the present invention should be understood to encompass all aspects of the invention, including various modifications, equivalent processes, and alternative devices that fall within the scope of the invention as defined by the appended claims and their equivalents. The following aspects should be noted. (Note 1) A substrate having a first main surface and a second main surface, The adhesive layer disposed on the second main surface, A film comprising: a release liner disposed on the opposite side of the adhesive layer from the substrate, The adhesive layer has a first structural pattern, The aforementioned release liner has a second structural pattern, A film in which the first structural pattern and the second structural pattern are neither inverses of each other nor identical to each other. (Note 2) A substrate having a first main surface and a second main surface, The adhesive layer disposed on the second main surface, A film comprising: a release liner disposed on the opposite side of the adhesive layer from the substrate, The adhesive layer has a first structural pattern, The aforementioned release liner has a second structural pattern, A film in which a gap exists between the adhesive layer and a portion of the release liner due to the second structural pattern described above. (Note 3) The release liner is commercially recyclable, as described in Appendix 1 or 2. (Note 4) The release liner is a film according to Appendix 1 or 2, formed from a polymer having a surface energy of 35 mJ/m² or less . (Note 5) The film according to Appendix 1 or 2, wherein the release liner is substantially formed from one of the group consisting of high-density polyethylene, low-density polyethylene, polyvinyl chloride, and polypropylene. (Note 6) A roll of film comprising the film described in Appendix 1 or 2. (Note 7) The film according to Appendix 1 or 2, wherein one or both of the release liner and the adhesive layer contain beads. (Note 8) The film according to Appendix 7, wherein the second structural pattern has a period, and the period has a length equal to or greater than the average diameter of the beads. (Note 9) The film according to Appendix 1 or 2, wherein the first structural pattern and the second structural pattern have different periods. (Note 10) The adhesive layer is the film described in Appendix 1 or 2, comprising an acrylic adhesive. (Note 11) The film according to Appendix 1 or 2, wherein the first structural pattern is a channel and the second structural pattern is a prism. (Note 12) The film according to Appendix 1 or 2, wherein both the first structural pattern and the second structural pattern are one-dimensional patterns. (Note 13) The film according to Appendix 1 or 2, wherein the second structure causes the volume per unit area between the support surface of the release liner and the planar land region of the release liner to be greater than the volume of the adhesive layer per unit area. (Note 14) To provide a substrate having a first main surface and a second main surface, Applying an adhesive layer to the second main surface, The adhesive layer is embossed with a first liner to form a structured adhesive layer having a first structural pattern, Removing the first liner, A method comprising attaching a second liner having a second structural pattern to a structured adhesive layer, wherein the second structural pattern is neither an inversion of the first structural pattern nor identical to the first structural pattern. (Note 15) The method according to Appendix 14, wherein the first liner comprises silicone. (Note 16) The first liner is a belt, as described in Appendix 14. (Note 17) The method according to Appendix 14, wherein the first liner and the second liner are made of different materials. (Note 18) The method according to Appendix 14, wherein the second liner is essentially formed from one of the group consisting of high-density polyethylene, low-density polyethylene, polyvinyl chloride, and polypropylene. (Note 19) The method according to Appendix 14, wherein the second liner is formed substantially from commercially recyclable material. (Note 20) The method according to Appendix 14, further comprising winding the film onto a roll. (Note 21) The method according to Appendix 14, wherein the second liner is essentially formed from a polymer having a surface energy of 35 mJ/m² or less . (Note 22) The method according to Appendix 14, wherein the second liner has a higher surface energy than the first liner.