US 12,441,085 B2
Thin glass-laminated printed steel sheet having excellent surface quality and method for manufacturing same
Jung-Hwan Lee, Gwangyang-si (KR); Jae-Seon Hong, Asan-si (KR); Jin-Tae Kim, Gwangyang-si (KR); Joon-Soo Kim, Asan-si (KR); Bum-Gook Lee, Asan-si (KR); Tae-Hyo Park, Asan-si (KR); and Myung-Soo Kim, Gwangyang-si (KR)
Assigned to POSCO CO., LTD, Pohang-si (KR); and CORNING INCORPORATED, Corning, NY (US)
Appl. No. 17/414,735
Filed by POSCO, Pohang-si (KR); and CORNING INCORPORATED, Corning, NY (US)
PCT Filed Dec. 18, 2019, PCT No. PCT/KR2019/017990
§ 371(c)(1), (2) Date Jun. 16, 2021,
PCT Pub. No. WO2020/130621, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 10-2018-0165622 (KR), filed on Dec. 19, 2018; and application No. 10-2019-0129600 (KR), filed on Oct. 18, 2019.
Prior Publication US 2022/0040958 A1, Feb. 10, 2022
Int. Cl. B32B 17/06 (2006.01); B32B 7/12 (2006.01); B32B 15/18 (2006.01); B32B 37/00 (2006.01); B32B 37/12 (2006.01); B32B 38/00 (2006.01)
CPC B32B 17/061 (2013.01) [B32B 7/12 (2013.01); B32B 15/18 (2013.01); B32B 37/003 (2013.01); B32B 37/12 (2013.01); B32B 38/145 (2013.01); B32B 2037/1253 (2013.01); B32B 2250/02 (2013.01); B32B 2255/06 (2013.01); B32B 2307/4023 (2013.01); B32B 2307/406 (2013.01); B32B 2307/412 (2013.01); B32B 2307/732 (2013.01); B32B 2309/105 (2013.01); B32B 2309/12 (2013.01); B32B 2310/0831 (2013.01); B32B 2311/30 (2013.01); B32B 2315/08 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A glass-laminated printed steel sheet comprising:
a printed steel sheet including a metal sheet and a printed layer on which a design or a pattern is printed on a surface of the metal sheet;
an adhesive layer formed by curing an ultraviolet curable adhesive solution on the printed steel sheet, the adhesive layer having a thickness of 10 to 100 μm and being transparent; and
flexible glass attached by the adhesive layer, the flexible glass having a thickness of 0.1 to 2 mm,
wherein a reference value for color density (Dmax Comparison) is higher than 1.6, as measured by a spectrophotometer,
wherein glossiness of the glass-laminated printed steel sheet is 85% or more, based on a 60 degree glossmeter,
wherein image clarity of the glass-laminated printed steel sheet is SW 30 or less and LW 10 or less, based on an image clarity measuring instrument, and
wherein, in evaluating optical properties by the spectrophotometer, an L value is greater than 75, when white point is evaluated (White Point Comparison), a reference value is greater than 440,000, when a HSL (H: Hue, S: Saturation, L: Lightness) value is evaluated for color gamut volume (Gamut Volume) (HSL Comparison), based on maximum saturation (Saturation=1), and a reference value is greater than 200,000, when an absolute value of color gamut volume is evaluated (Cubic Volume Comparison).