洗浄過程の鉄による綿布の黄変に対するN-アシルアミノ酸塩の抑制効果 : アミノ酸系界面活性剤の応用に関する研究(第5報)

概要

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This paper examines how surfactants, such as sodium dodecyl sulfate nonylphenolether and N-acyl L-glutamate, play a preventive role in lessening the yellowing of cotton fabric which occurs after the cloth has been washed in water containing Fe(II). The presence Fe(II) in the laundry water greatly accelerated the yellowing of the fabric. However, when N-acyl amino acid surfactant (disodium N-stearoyl-L-glutamate) was added to the laundry system, the yellowing of cotton fabric was suppressed. The yellowing of fabric was retarded because N-stearoyl-L-glutamate has a greater ability than other surfactants to chelate Fe(II) in an aqueous solution, for eample during laundering. The yellowing of cotton fabric which has absorbed Fe (II) continued as the cloth ages during storage. However, the suppressive effect N-acyl-L-glutamate on such yellowing was also found to continue as long as the cloth was stored at room temperature.
福岡女子大学の論文
1995-01-25