NON-MOLTEN-MIX PROCESS FOR MAKING BAR COMPRISING ACYL ISETHIONATE BASED SOLIDS, SOAP AND OPTIONAL FILLER

摘要

Detergent bar compositions comprising optional fillers with both soap and high levels of acyl isethionate surfactants are prepared. When high levels of soap and surfactant are normally used in such a process, there is a significant "grittiness" problem. Preprocessing the isethionate containing chip (e.g., "DEFI" chip) has been unexpectedly found to remedy this problem. Preprocessing involves blending of the isethionate with fatty acid soap, optionally surfactant (e.g., betaine) and other minor components using the same process as that used to manufacture final soap (e.g., mixing components at greater than 90 DEG C for at least 15 minutes, cooling for example on a chill roll, and refining to form chips). The raw material so formed is collected in the form of noodles or chips and then used as the sodium acyl isethionate source in a non-molten process.