Patent ID: 8580365
Filing Date: 2013-11-12
Classification: B29B,B29C,B29K,B29L,B65D,Y10T

Abstract:
1. A synthetic resin bottle having a gradation pattern in color, obtained by biaxially drawing and blow molding a preform that has been injection molded in a shape of a bottomed cylinder, the synthetic resin bottle comprising: a portion of a cylindrical body of the synthetic resin bottle having a laminar structure in which a main resin layer made of a main resin is laminated with a colored resin layer made of a colored resin of a different color than a color of the main resin; a color-decorated portion defined by the colored resin layer in the portion of the cylindrical body; a color-gradated portion defined by a thin boundary area which is an end portion of the colored resin layer and where the colored resin layer has a gradually reduced thickness in a downward direction; and a non-decorated portion, wherein: