Massaging toilet bar with disintegrable agglomerates
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsSyed Abbas, Alessandro Spadini, Melissa Katz, Evan Hillman
Life of this patent
Estimating the term…
Abstract
Massaging toilet bar compositions are described that contain disintegrable agglomerates that provide simultaneous exfoliation and massaging to the skin and hair. Agglomerates are made by treating them with hydrophilic liquids, hydrophobic liquids, or a combination thereof. This treatment makes the agglomerate softer but not so soft as to make it break apart during the manufacture of the bars.
Claims14
A massaging toilet bar, comprising:
- a. about 5 to 80% by wt. of one or more anionic surfactants;
- b. about 0.02 to 20% by wt. of disintegrable agglomerates, the agglomerates including a plurality of particles, optionally containing a binder;
- and a treatment fluid coating at least a portion of an interior surface of the particles in the agglomerates, the fluid being selected from a hydrophilic compound, a hydrophobic compound or a blend thereof;
- c. wherein the agglomerates have a fracture index less than 1.0;
- and
- d. wherein the bar has a rigidity index of greater than 0.2 Mpa at 25 C.
A process for manufacturing a massaging bar, comprising the steps of in no particular order:
- a. contacting particle agglomerates with a treatment fluid under conditions effective for the agglomerate to have attained a fracture index of less than 1.0 to form a pretreated agglomerate, the fluid being selected from a hydrophilic compound, a hydrophobic compound or a blend thereof;
- b. blending the pretreated agglomerate with at least one component of a toilet bar base selected from a soap base, a syndet base, or a combar base, optionally containing a fragrance and other minor components to form a mixed mass;
- c. treating the mixed mass via an effective combination of milling, refining and/or plodding to form a refined mass;
- and
- d. processing the refined mass by either extruding followed by stamping, cutting or a combination thereof, or casting followed by hardening to form a massaging bar.
A method of skin cleansing with a massaging bar, comprising the steps of:
- a. wetting the massaging bar with water;
- the bar including:
- 1. about 5 to 80% by wt. of one or more anionic surfactants;
- 2. about 0.02 to 20% by wt. of water-disintegrable agglomerates, the agglomerates including a plurality of particles, optionally containing a binder;
- and a treatment fluid coating at least a portion of an interior surface of the particles in the agglomerates, the fluid being selected from a hydrophilic compound, a hydrophobic compound or a blend thereof;
- 3. wherein the agglomerates have a fracture index less than 1.0;
- and
- 4. wherein the bar has a rigidity index of greater than 0.2 Mpa at 25 C;
- and
- b. rubbing the wet bar on the skin with sufficient force to cause the agglomerates to disintegrate while cleansing and massaging the skin.
Dependencies are inferred from the claim text.