PURPOSE: To obtain a sparkler firework, capable of being used safely in an ordinary house and whose burning constituents are having low poisonous property, by a method wherein the firework is provided with a nozzle having a specified inner diameter and is formed of a resin, consisting of burning constituents of carbon, hydrogen and oxygen only and having adhesive property. ;CONSTITUTION: 50% ethyl acetate solution of polyvinyl acetate, ammonium perchlorate powder and aluminum powder are added with small amount of acetate, then, are mixed through agitation and, thereafter, solvent is evaporated whereby powder 1, containing proper clay, workable and having low poisonous property, is prepared. About 3/4 of depth of a paper cylinder 6, whose bottom is formed of cement 2 and whose inside is made of ceramic paper 5, is filled with proper amount of the powder 1. Next, the resistance body 3 of a solid resistor having 1 ohm 1/4 watt is embedded under the surface of the powder 1, a leading part 4 is led out of the paper cylinder 6 to solder it to a lead wire 8 for ignition, the lead wire 8 is fixed to the outside of the paper cylinder 6 with a paper tape 7 and, thereafter, the assembly is dried at the temperature of about 90°C whereby a sparkler having a nozzle 13, whose diameter is 1-1/2 of the inner diameter of the paper cylinder 6, can be obtained.;COPYRIGHT: (C)1993,JPO&Japio
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