US 12,070,970 B2
Decorative film, transfer film, use of a transfer film, method for producing a transfer film, method for decorating a plastic molded article, and plastic molded article
Martin Hahn, Herrieden (DE); Steven Hirschberg, Fürth (DE); Mustafa Kiyanat, Nuremberg (DE); Christiane Krauss, Neunkirchen am Sand (DE); and Rainer Sigritz, Nuremberg (DE)
Assigned to LEONHARD KURZ Stiftung & Co. KG, Fürth (DE)
Appl. No. 17/278,957
Filed by LEONHARD KURZ Stiftung & Co. KG, Fürth (DE)
PCT Filed Sep. 16, 2019, PCT No. PCT/EP2019/074724
§ 371(c)(1), (2) Date Mar. 23, 2021,
PCT Pub. No. WO2020/064404, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 102018123473.2 (DE), filed on Sep. 24, 2018.
Prior Publication US 2022/0048315 A1, Feb. 17, 2022
Int. Cl. B32B 7/12 (2006.01); B44C 1/17 (2006.01); B44C 3/00 (2006.01); B29C 45/16 (2006.01)
CPC B44C 1/1704 (2013.01) [B44C 3/005 (2013.01); B29C 45/1679 (2013.01); B32B 7/12 (2013.01); B32B 2457/208 (2013.01); B44C 1/1729 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A decorative film for decorating a plastic molded article comprising at least one first color varnish layer, at least one second color varnish layer and a transparent laser protective varnish layer, wherein the at least one first color varnish layer is disposed on an observer side of the transparent laser protective varnish layer and the at least one second color varnish layer is disposed on a side of the transparent laser protective varnish layer opposite the observer side such that the transparent laser protective varnish layer is arranged between the at least one first color varnish layer and the at least one second color varnish layer, and
wherein the decorative film has one or more electrical functional layers with at least one electrical functional structure disposed on the side of the transparent laser protective varnish layer opposite the observer side, wherein the at least one electrical functional structure forms a touch sensor panel, which provides a touch panel functionality, and
wherein the at least one second color varnish layer has a transmittance of at least 10%, and
wherein the at least one second color varnish layer deflects more than 50% of the transmitted light by more than 2.5° from a direction of an incident light beam, and
wherein the at least one first color varnish layer is at least partially removed in one or more first areas such that the transparent laser protective varnish layer is uncovered on the observer side, and
wherein the decorative film further comprises a protective varnish layer disposed on the observer side of the transparent laser protective varnish layer such that the at least one first color varnish layer is arranged between the transparent laser protective varnish layer and the protective varnish layer, and
wherein the protective varnish layer is at least partially removed in the one or more first areas.