When a kneaded mass is put into a die and pressed between the upper and the lower punches, the total applied pressure is not perfectly transmitted between these punches because a part of the compression energy is consumed as the friction energy against the side wall.
This transmission degree of the compaction force in the die is proposed in this paper as a measure to describe the kneaded degree of materials.
This method provides the most generalized measuring means because the kneaded character can be obtained independently regardless of the kinds of kneading equipment.