Measurements of viscosity were carried out on the same samples as those described in the preceding paper. In suspension of substances like talc, which does not have a strong thixotropic character, η
ap increases with the increasing amount of the granules added and spinnability, which is a lower-limit type, also increases. A transition point, at which the spinnability changes to the upper-limit type, is observed when η
ap becomes too large. When the amount of the granules added increases further, η
ap also continues to increase but spinnability decreases while still in the upper-limit type and finally disappears altogether. In a suspension with strong thixotropic character, η
ap increases with increasing addition of the granules at first and spinnability, which is a lower-limit type, also increases. With further increase in the amount added, the length of spinnability becomes definite, irrespective of the velocity of drawing and in spite of increasing η
ap. This is probably due to the marked appearance of thixotropic character with the increased addition of granules. Further increase in the amount results in the decrease of spinnability, irrespective of the velocity of drawing.
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