| 摘要 |
PURPOSE: To provide an inexpensive mold simple to produce and handle and suitable for the molding of an org. polymeric material due to continuous injection by forming a mold main body from a tubular body. CONSTITUTION: A mold A equipped with a tubular paper pipe 1 having an internal hollow part as a cavity part and forming a mold main body and caps 2, 3 having through-holes 2a, 3a formed so that a shaft 4 is inserted from one through-hole 2a and the other through-hole 3a is closed by the tip surface of the shaft at the central parts thereof and provided to both end opening parts of the paper pipe 1 is produced. A molding material (org. polymeric material) 5 is injected into the mold A to obtain a roller molded product. |
