| 摘要 |
PROBLEM TO BE SOLVED: To provide a die for high frequency welding of a polyolefin-based film or sheet which can produce a high frequency welded product of the polyolefin-based film or sheet showing excellence in appearance of the product and tearing strength at the welded portion. SOLUTION: A die for high frequency welding of a polyolefin-based film or sheet is mounted on either one of electrodes to weld the polyolefin-based film or sheet (24A and 24B) to itself or to weld the polyolefin-based film or sheet (24A and 24B) to a formed product by means of high frequency wherein a cutter 12 is disposed on a side surface of the die 10, the die having a surface 14A inclined with respect to the top surface of the die 10, the inclination being increased as the die approaches the cutter 12 to form a cut portion 14 having an R-shaped inclined cross section. |
