US 12,214,578 B2
Transfer sheet and manufacturing method for same, method for manufacturing molded body using said transfer sheet and molded body, and front plate using said molded body and image display device
Ryohei Miyata, Neyagawa (JP); Kiyotaka Matsui, Nagareyama (JP); Yoshinari Matsuda, Okayama (JP); Jun Ueda, Mihara (JP); Seiji Shinohara, Tokyo (JP); Tomoyuki Horio, Tsukuba (JP); Tatsuya Kozakai, Okayama (JP); and Sho Suzuki, Sendai (JP)
Assigned to DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
Appl. No. 17/599,418
Filed by DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
PCT Filed Mar. 27, 2020, PCT No. PCT/JP2020/013996
§ 371(c)(1), (2) Date Nov. 10, 2021,
PCT Pub. No. WO2020/203759, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2019-067720 (JP), filed on Mar. 29, 2019.
Prior Publication US 2022/0184937 A1, Jun. 16, 2022
Int. Cl. B32B 37/24 (2006.01); B32B 7/06 (2019.01); B44C 1/17 (2006.01); G02B 1/02 (2006.01); G02B 1/18 (2015.01); G02F 1/1333 (2006.01)
CPC B32B 37/24 (2013.01) [B32B 7/06 (2013.01); B44C 1/1708 (2013.01); G02B 1/02 (2013.01); G02B 1/18 (2015.01); B32B 2037/243 (2013.01); B32B 2457/202 (2013.01); G02F 1/133331 (2021.01)] 7 Claims
OG exemplary drawing
 
1. A transfer sheet A comprising a first release substrate, a transfer layer and a second release substrate in the presented order and having a second peel strength between the second release substrate and the transfer layer larger than a first peel strength between the first release substrate and the transfer layer, the transfer layer comprising a functional layer that is an antifouling low refractive index layer comprising a binder resin, silica particles and an antifouling agent,
wherein the antifouling agent in the antifouling low refractive index layer is unevenly distributed on the second release substrate side,
wherein a ratio of Si element attributed to the silica particles is 10.0 atomic percent or more and 18.0 atomic percent or less, and a ratio of C element under the assumption that the ratio of Si element is defined to be 100 atomic percent is 180 atomic percent or more and 500 atomic percent or less, obtained by analysis of a surface region of the second release substrate side of the antifouling low refractive index layer by X-ray photoelectron spectroscopy, and
wherein arithmetic average roughness Ra on a surface of the second release substrate side of the antifouling low refractive index layer is 6.00 nm or more and 15 nm or less.