| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce toy fireworks inducing intermittent emission easily and inexpensively by providing first powder section having combustion durability and a second powder section having no combustion durability formed continuously along the first powder section and emitting light intermittently from the second powder section. SOLUTION: The toy fireworks has a powder section 2 having combustion durability and a powder section 3 having no combustion durability formed continuously along the surface of the powder section 2 wherein the powder section 3 is burnt sequentially and partially as the powder section 2 is fired to emit light intermittently. The powder section 2 is composed of powder having combustion durability and applied to cover the outer surface in the vicinity of the forward end part of a shaft member 4. The powder section 2 is formed by immersing the forward end part of the shaft member 4 into a mud powder formed of powder having combustion durability and then drying it. The powder section 3 is composed of powder having no combustion durability and applied to cover the outer surface of the powder section 2 partially.</p> |
