Patent ID: 9744749
Date: 2017-08-29
CPC Classifications: B29C,B32B,B65D,Y10T

Claim:
1. A plastic container comprising a container body made from an olefin resin and is colored and a decorative layer laminated on the outer surface of the container body, wherein said decorative layer includes a transparent adhesive resin layer positioned on the inner surface side of the container, a transparent polyester resin layer which is the outer surface layer positioned on the outer surface side of the container, and a gradation layer which is formed between the transparent adhesive resin layer and the transparent polyester resin layer and includes a portion of which the thickness gradually varies in the direction of height of the container, said gradation layer being formed of a resin composition of a transparent polyester resin blended with a coloring agent; the thickness of the container body in said container body portion varying in response to a change in the thickness of said gradation layer in a manner that the thickness of the container body portion which is the total thickness of the thickness of said container body and the thickness of said decorative layer is not varied by the presence of said gradation layer; and the water content of the transparent polyester resin forming the gradation layer is smaller than the water content of the transparent polyester resin forming the outer surface layer, the water content of the transparent polyester resin forming the outer surface layer is in a range of 500 to 1500 ppm, and the water content of the transparent polyester resin forming the gradation layer is in a range of 50 to 500 ppm.