To give a transparent, homogenous and fluent surfactants concentrated solution even at their high contents which can be transported by a pump and has a very low color number.
The aqueous concentrated solution comprises: (A) 0.1-8.0, preferably 3.0-7.0 wt.% of one or more isethionate(s) shown by following formula RCOOCH2CH2SO3M (1) wherein R represents a linear or branched alkyl or alkenyl group and M represents a counter ion; (B) 0.1-8.0 wt.% of one or more taurate(s) shown by following formula R1CON(CH3)CH2CH2SO3X (2) wherein R1 and X represent meanings defined for R and M; and (C) 0.1-40.0 wt.% of one or more alkylbetaine(s) shown by following formula R2N+(CH3)2CH2COO-(3) wherein R2 represents meanings defined for R based on the whole composition, wherein the total concentration of the surfactants shown by formulae 1, 2 and 3 surpass 20 wt.%. These concentrated solutions are fluid, transparent and colorless at room temperature.
Okumura Yoshimichi
Blacksmith
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