	US 12,460,062 B2
	Method of removing ink layer from shrink sleeve label
Masaya Fushida, Osaka (JP); and Akira Miyazaki, Osaka (JP)
Assigned to Fuji Seal International, Inc., Osaka (JP)
Appl. No. 17/796,470
Filed by Fuji Seal International, Inc., Osaka (JP)
PCT Filed Jan. 25, 2021, PCT No. PCT/JP2021/002384 § 371(c)(1), (2) Date Jul. 29, 2022, PCT Pub. No. WO2021/157399, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 2020-018775 (JP), filed on Feb. 6, 2020.
Prior Publication US 2023/0048686 A1, Feb. 16, 2023
Int. Cl. C08J 11/14 (2006.01); B29B 17/02 (2006.01)

CPC C08J 11/14 (2013.01) [B29B 17/02 (2013.01); B29B 2017/0289 (2013.01)]

4 Claims

1. A method of removing an ink layer from a shrink sleeve label, the method comprising:

preheating the shrink sleeve label including the ink layer;

shredding the shrink sleeve label after the preheating to fabricate shrink sleeve label pieces; and

removing the ink layer from the shrink sleeve label pieces by alkaline desorption,

wherein a temperature of the preheating is the same as a temperature of the alkaline desorption or higher than the temperature of the alkaline desorption.