| 摘要 |
PROBLEM TO BE SOLVED: To provide foam particles which are polypropylene-based resin foam particles that have a low apparent density (high foaming ratio) and are excellent in lightness, and can obtain a polypropylene-based resin foam particle molded body which is excellent in hue and is uniform.SOLUTION: Polypropylene-based resin foam particles contain a specific sulfate compound and a coloring agent, and have an apparent density of 7 to 80 g/L. An average foam diameter (Ls) in a surface layer section of the foam particles is 70 μm or more, and a ratio (La/Ls) between an average foam diameter (La) in the whole foam particles and the average foam diameter (Ls) in the surface layer section of the foam particles is 1.0 to 2.2. |
