| 摘要 |
PROBLEM TO BE SOLVED: To provide a mannequin having biodegradability, having excellent heat resistance and transparency, and having a beautiful finish surface. SOLUTION: A biodegradable polylactic acid pellet having a moisture content of not more than 100 ppm is extruded under a cylinder temperature condition of 150 to 210 deg.C and a die temperature condition of 150 to 180 deg.C, and then, secondary fabrication is performed by using a transparent board having a thickness of 1 to 5 mm pressed by a molding roller held at 100 deg.C or less as a raw material, and the whole surface is transparent for seeing-through.
|
