Personal washing bar having adjacent emollient rich and emollient poor phases

• Main Authors: MICHAEL MASSARO, SYED HUSAIN ABBAS, ALBERT JOSEPH POST, HARRY CLARK CROOKHAM, GAIL BETH RATTINGER, LAURIE ANN COYLE
• Format: Patent
• Language: English
• Published: 01.04.2004
• Edition: 7
• Subjects: ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; CANDLES; CHEMISTRY; DETERGENT COMPOSITIONS; DETERGENTS; FATTY ACIDS THEREFROM; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; RECOVERY OF GLYCEROL; RESIN SOAPS; SOAP OR SOAP-MAKING; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS

The present invention relates to a multiphase cleansing bar having a plurality of phases of cleansing material. Adjacent phases preferably have different concentration levels of benefit components respectively and all the phases individually preferably have a substantially similar cleansing base consisting of a syndet base, a soap base, or mixtures thereof. These benefit components are emollients, moisturizers, nutrients, anti-aging materials etc. Segregation of the benefit rich component is expected to result in improved deposition of the benefit components on the skin during the product application, which improves the moisture barrier properties of the skin. Chemical and Theological compatibility between the phases is maximized and recycling of the product during production is facilitated with the use of a uniform cleansing base. Methods of producing the inventive bar by extruding and melt casting are also disclosed.