Enhanced Rinse-off Conditioner Compositions with Improved Microcapsule Deposition

The present invention relates to enhanced rinse-off conditioner compositions comprising microcapsules with improved deposition efficiency on substrates, providing better conditioning and moisturizing benefits.

The original patent disclosed rinse-off conditioner compositions comprising microcapsules with an oil-based core and a polymeric shell coated with a cationic polymer. However, these compositions may suffer from limited deposition efficiency of microcapsules on substrates, leading to reduced conditioning and moisturizing benefits. The present inventive concept addresses this limitation by introducing novel microcapsule compositions and methods for improving deposition efficiency, thereby enhancing the overall performance of rinse-off conditioner compositions.

The enhanced rinse-off conditioner compositions of the present invention comprise core-shell microcapsules with a hydrophobic core and a polymeric shell coated with a cationic polymer, specifically a copolymer of polyquaternium-7 and polyquaternium-11. These microcapsules are combined with up to 3 wt % by weight of a non-ionic surfactant, which improves deposition efficiency on substrates such as hair, skin, or fabric. Additionally, the compositions may include a moisturizing agent selected from the group consisting of glycerin, panthenol, and argania spinosa kernel oil, which enhances the conditioning and moisturizing benefits. A method for improving deposition efficiency of microcapsules on a substrate is also disclosed, comprising preparing a rinse-off conditioner composition according to the present invention and applying it to the substrate.

The present inventive concept introduces novel microcapsule compositions with improved deposition efficiency, achieved through the use of a specific cationic polymer copolymer and a non-ionic surfactant. This combination is not disclosed in the original patent and provides a non-obvious solution to the problem of limited deposition efficiency.

Alternative embodiments of the inventive concept may include using different types of cationic polymers or surfactants, varying the concentration of microcapsules and additives, or incorporating additional ingredients such as UV-absorbing agents or fragrances. The inventive concept may also be adapted for use in different rinse-off conditioning applications, such as skin or fabric care.

The enhanced rinse-off conditioner compositions of the present invention have significant commercial potential in the personal care industry, particularly in the hair care and skin care segments. The improved deposition efficiency and conditioning benefits of these compositions make them attractive for use in a wide range of products, from shampoos and conditioners to body washes and lotions.