The invention discloses a method for preparing smokeless
fireworks bright beads. The smokeless
fireworks bright beads are characterized by comprising four kinds of red, green, purple and yellow, eachof the smokeless
fireworks bright beads comprises a kernel and an outer layer, and the smokeless fireworks bright beads are in the shape of beads, wherein the kernel comprises the following componentsin percentage by
mass: red: 55% of KMnO4, 24% of SrCO3, 17% of
epoxy slices and 4% of
dextrin; green: 50% of Ba(NO3)2, 10% of
magnesium powder, 10% of aluminum
powder, 7% of resins, 7% of
rare earth,15% of KCIO4 and 1% of
epoxy slices; purple: 20% of CuO, 40% of KCIO4, 10% of
polyvinyl chloride, 10% of phenolic resins, 8% of
magnesium powder and 8% of aluminum powder; yellow: materials containing
sodium salt; the outer layer is a
flame slow
combustion delaying layer, and is designed according to zero
oxygen balance, the consumption is 15-45% of the weight of the bright beads, and the outer layer comprises the components in percentage by
mass of 0-86.2% of
potassium nitrate, 0-84.2% of
ammonium dichromate, and 13.8-15.8% of an
adhesive. The smokeless fireworks bright beads have the advantages of being high in effective
binding force, simple in technology, free from new equipment, little in smog, good in ornamental effect, high in promotion and application value, and the like.