Aiming at solving the bamboo shortage, as well as pursuing higher productivity and lower cost by the introduction of machine-made method instead of hand-made method, Uchiwa fan made of plastic materials instead of traditional bamboo was developed and became popular in the decade started from 1965.
昭和40年代には、竹不足の解消、機械生産による手づくりをはるかに上回る生産性と低コストから、伝統的な竹に換わってポリピレン（プラスチック）を使用したポリ団扇が登場し、急速に普及していく。