US 12,324,851 B2
Drawing substrate
Nikolaos Chrysanthakopoulos, Anoixi (GR)
Assigned to BIC Violex Single Member S.A., Anoixi (GR)
Filed by BIC Violex Single Member S.A., Anoixi (GR)
Filed on May 30, 2023, as Appl. No. 18/325,820.
Prior Publication US 2023/0381089 A1, Nov. 30, 2023
Int. Cl. B32B 3/10 (2006.01); A61K 8/02 (2006.01); A61K 8/9783 (2017.01); B44D 2/00 (2006.01)
CPC A61K 8/9783 (2017.08) [A61K 8/0208 (2013.01); B44D 2/002 (2013.01); A61K 2800/43 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A substrate comprising:
an adhesive,
a hygroexpansible material,
a hygroinert ink,
wherein the hygroexpansible material is hydrophilic and the hygroinert ink is hydrophobic and wherein the hygroexpansible material forms a hygroexpansible layer and the hygroinert ink forms a hygroinert layer, wherein the hygroinert layer is disposed at least on a part of the hygroexpansible layer, and wherein the adhesive is comprised within an adhesive layer;
wherein the substrate comprises a first section comprising the adhesive, and a second section attached to the first section,
wherein the second section comprises a free end.