Since "fallen hair," which occurs during the raw wool spinning process, is used and consistency of quality is difficult to maintain, a high level of technological capability and know-how is required. A roll of felt comes in a standard width of 1.8 meters but its volume and weight depend on the thickness of the material, its length, and its density.

Experience and technological capability are also required in determining the cutting dimensions, and special cutting tools are used. The quality of Japan's woolen pressed felt is among the best in the world, but the entire process from raw wool to end product is enormous. Many important steps in the process still require skilled craftsmen to complete, so it has not become fully automated. It is up to us to improve production efficiency by more fully automating felt production without sacrificing the intrinsic qualities of the wool itself, such as its texture, feel, and warmth.