SOAP-BUBBLE BLOWING COMPOSITION AND PIPE Russian patent published in 2002 - IPC

FIELD: production of toys. SUBSTANCE: one end of pipe is wetted with surfactant solution and other end is adapted for injection of gas and provided with openings formed in upper part of pipe wall. Injection effect is provided by additional suction of air through openings in pipe wall. End opening of pipe has diameter exceeding 20 mm so that air is exhaled into pipe without necessity of embracing it lips. Additional suction of air through openings in pipe wall is facilitated through changing of effective section of openings. Pipe length is 70-250 mm. Soap-bubble blowing composition comprises surfactants, high- molecular compounds and salts and further comprises primary and secondary alcohols having 8-15 atoms of carbon. Such construction and soap film forming composition allow bubbles of large size to be produced. EFFECT: simplified construction and increased entertaining effect. 3 cl, 1 dwg