Washing Test by Natural Soil. I

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  • 天然よごれによる洗浄力試験 (第1報)
  • テンネン ヨゴレ ニ ヨル センジョウリョク シケン 1 エリ オコウ ヌノ ニ ヨル センジョウリョク シケン ノ サイゲンセイ
  • Reproducibility of Washing Test by Naturally Soiled Cloths
  • えり汚こう布による洗浄力試験の再現性

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Abstract

It is self-evident that the most important evaluation factor for detergents is detersive effect. Authors put the test cloths on the neck of clothes and prepared naturally soiled cloths, and selected evenly soiled cloths for washing test.<BR>Washing tests with different detergents A and B by these cloths were performed and the detersive effect was compared with detergent A and B by Scheffe's pair comparison method.<BR>Although constant soiling level was not obtaineble through the experiment, relative detersive effect between two detergents A and B at different areas, seasons and time of storage by these naturally soiled cloths were consistent and highly reproducible.<BR>In conclusion, the present method of evaluating two detergents at different conditions seems more reliable than the method by artificially soiled cloths available.

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