The mannequin and its production mannered null thickness of the biodegradation Characteristic poly lactic acid

摘要

PROBLEM TO BE SOLVED: To provide a mannequin of biodegradable polylactic acid foam which retains biodegradability, has dense cells and uniform thickness, has elasticity and resilience and has a high impact-resistance and dimensional stability. SOLUTION: In the mannequin of biodegradable polylactic acid foam 10 a biodegradable polylactic acid foam board with the thickness of 0.5 to 5 mm is die formed into the shape of at least part of the front of human body. The mannequin is nanufactured from biodegradable polylactic acid plastic pellet containing 1 weight percent or more of amorphous biodegradable polylactic acid or the plastic pellet whose noisture content is 10 to 250 ppm. The density is in the range of 0.5 to 1.05 g/cm3.