Exfoliating head for a personal care appliance

An exfoliating workpiece, comprising:

• a disc plate;
• and
• a plurality of etched abrasive elements disposed on a surface of the disc plate and positioned to project outwardly from the surface about 0.003 inches to 0.008 inches, each abrasive element forming a frustum comprising:
• a base positioned adjacent the disc plate;
• a top surface spaced outwardly a distance from the base;
• and
• at least one side wall that extends from the base and adjoins with the top surface to form one or more cutting edges, wherein the at least one side wall includes a surface having a concave curvature that adjoins the one or more cutting edges,
• wherein the disc plate includes a continuous section covering at least 10% of the surface and is absent of the plurality of abrasive elements, the continuous section covering at least a center of the disc plate, wherein the plurality of abrasive elements are located outwardly from a perimeter of the continuous section and positioned at a plurality of radial distances from the center of the disc plate;
• wherein a ratio, as a percentage, of a cross-sectional area of the top surface of each abrasive element to a cross-sectional area of the base of each abrasive element is between 30% and 60%.

A system, comprising:

• a personal care appliance having an oscillating drive system;
• and
• a brush-less exfoliating workpiece configured to be operatively coupled to the oscillating drive system, wherein the workpiece comprises:
• a disc plate;
• and
• a plurality of abrasive elements provided on a surface of the disc plate and positioned to project outwardly from the surface, the abrasive elements configured to exfoliate a partially keratinized area of an epidermis when oscillated in contact therewith,
• wherein each abrasive element forms a frustum comprising:
• a base positioned adjacent the disc plate;
• a top surface spaced outwardly a distance from the base;
• and
• a plurality of side walls that extend from the base and adjoin with the top surface to form one or more cutting edges, and wherein each abrasive element narrows as each abrasive element extends from the base of the abrasive element and widens at the top surface of the abrasive element, the base being wider than the top surface;
• and
• wherein the disc plate includes a continuous section that is absent of the plurality of abrasive elements, the continuous section covering at least a center of the disc plate and at least 10% of a surface of the disc plate from which the plurality of abrasive elements project outwardly, and wherein the plurality of abrasive elements are located outwardly from a perimeter of the continuous section and positioned at a plurality of radial distances from the center of the disc plate.