綿わた打うち

noun

cotton beating; cotton fluffing

Refers to the traditional process of beating cotton to make it soft and fluffy, often for futons or wadding.

• 祖そ母ぼは古ふるい布ふ団とんを再さい生せいするために綿わた打うちをしていた。

  My grandmother used to beat cotton to revive old futons.