Plastic label

Abstract

A plastic label is provided having a substrate film, an ink layer, and a coating layer interposed between the substrate film and the ink layer. The coating layer contains a first resin and a second resin, the first resin being an acrylic-acid copolymer resin having a first glass transition temperature and the second resin being an acrylic-acid copolymer resin having a second glass transition temperature that is lower than the first glass transition temperature. An apparent acid value of the coating layer is 40 to 150 mg KOH/g or less, and a total content percentage of the first resin and the second resin in the coating layer is 50 to 95 parts by mass.

1 - 10 . (canceled) 
     
     
         11 . A recycling method of a plastic label, wherein the plastic label comprises a substrate film, an ink layer, and a coating layer interposed between the substrate film and the ink layer, wherein the coating layer contains a first resin and a second resin, the first resin is an acrylic-acid copolymer resin having a first glass transition temperature, the second resin is an acrylic-acid copolymer resin having a second glass transition temperature that is lower than the first glass transition temperature, an apparent acid value of the coating layer is 40 mg KOH/g or greater and 150 mg KOH/g or less, and a total content percentage of the first resin and the second resin in the coating layer is 50 parts by mass or greater and 95 parts by mass or less, the method comprising the step of:
 subjecting the plastic label to an alkali treatment to desorb the ink layer from the plastic label.   
     
     
         12 . The recycling method of  claim 11 , wherein the step of subjecting the plastic label to an alkali treatment comprises immersing the plastic label in an aqueous alkaline solution. 
     
     
         13 . The recycling method of  claim 11 , wherein the step of subjecting the plastic label to an alkali treatment comprises spraying the plastic label with an aqueous alkaline solution. 
     
     
         14 . The recycling method of  claim 11 , further comprising removing the plastic label from a plastic container prior to subjecting the plastic label to an alkali treatment to desorb the ink layer from the plastic label. 
     
     
         15 . The recycling method of  claim 11 , further comprising crushing the plastic label prior to subjecting the plastic label to an alkali treatment to desorb the ink layer from the plastic label.