Tayuh Kigyo's third-generation company president Tamoi Hayato (田茂井 勇人) first explained about their chirimen manufacturing process.

These looping punch cards called "mon-gami" (紋紙) program the Jacquard loom to weave the design on the fabric. The holes in the punch cards tell the loom which threads are to be raised or not during the weaving process. These punch cards can be made by computer now.