Study of Detergency. XIII.

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  • 洗浄に関する研究 (第13報)
  • ジンコウオコウ ヌノ ノ カイリョウ
  • On the New Artificially Soiled Cloth
  • 人工汚こう布の改良

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Abstract

In the previous paper, the authors investigated the effect of clay on detergency and developed a new artificially soiled cloth prepared from calcined clay. In this paper, the authors examined the reinforcement of the adhesive force of soil on fiber, and the correlation between the artificially soiled cloth, which was newly developed, and naturally soiled cloth on detergency.<BR>The adhesive force of the artificial soil on fiber increased by rubbing the soil on fiber with sponge more than fifty times. The adhesive force was hardly affected by both rubbing materials, such as aponge, plastic, wood and others, and rubbing temperature.<BR>The new artificially soiled cloth prepared from the amorphous clay behaved similarly to naturally soiled cloth under various washing conditions, and furthermore, had an excellent sensitivity for evaluating detergency of alkaline builders.

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