Packaging box for golf ball

Abstract

A packaging box, for a golf ball, is formed by folding a packaging sheet comprising a decomposable laminate material consisting of a polylactic acid-containing polymer film and a sheet of paper laminated with the polylactic acid-containing polymer film. A portion corresponding to a window is cut out from the paper, and the window is covered with the polylactic acid-containing polymer film laminated on the paper. The window is formed straddlingly on two or three planes such that the polylactic acid-containing polymer film covering the window is bent perpendicularly at a boundary between the planes adjacent to each other. A raised portion is formed on the packaging sheet.

Dependencies are inferred from the claim text.