The present invention relates to a cutting element having a substrate with at least one aperture which includes a cutting edge along at least a portion of an inner perimeter of the aperture. The cutting edges have an asymmetric cross-sectional shape with a first face, a second face opposed to the first face and a cutting edge at the intersection of the first face and the second face. Moreover, the present invention relates to a hair removal device including such cutting elements.

The present invention relates to a skin treatment sheet including a substrate with a plurality of apertures wherein the apertures have a first and second inner perimeter and a cutting edge along at least a portion of the first inner perimeter. The skin treatment sheet has a total cutting length which is the total length of all portions of the first perimeter in each aperture that contain a cutting edge and a total aperture area wherein the ratio of total aperture area to total cutting length is in a predefined range from 0.08 to 2.0 mm. Moreover, the present invention also relates to a skin treatment device including this skin treatment sheet.

The present invention relates to a skin treatment sheet including a substrate with a plurality of apertures wherein the apertures have a first and second inner perimeter and a cutting edge along at least a portion of the first inner perimeter. The skin treatment sheet has a total cutting length which is the total length of all portions of the first perimeter in each aperture that contain a cutting edge and a total aperture area wherein the ratio of total aperture area to total cutting length is in a predefined range from 0.08 to 2.0 mm. Moreover, the present invention also relates to a skin treatment device including this skin treatment sheet.

The present invention relates to a skin treatment sheet comprising a substrate with a plurality of apertures wherein the sheet has a first surface and an opposing second surface. The apertures have a first and second inner perimeter and a cutting edge along at least a portion of the first inner perimeter. The skin treatment sheet has a stability ST which is the ratio of the average cross-sectional substrate area Ax and the total aperture area A1. Moreover, the present invention also relates to a skin treatment device comprising this skin treatment sheet.

The present invention relates to a skin treatment sheet comprising a substrate with a plurality of apertures wherein the sheet has a first surface and an opposing second surface. The apertures have a first and second inner perimeter and a cutting edge along at least a portion of the first inner perimeter. The skin treatment sheet has a stability ST which is the ratio of the average cross-sectional substrate area Ax and the total aperture area A1. Moreover, the present invention also relates to a skin treatment device comprising this skin treatment sheet.

An integrally formed rigid razor blade has, in cross-section transverse to a longitudinal axis, a cutting edge portion, a base portion, and a bent portion. The cutting edge portion extends along a cutting edge portion axis and has a cutting edge at one end. The base portion extends along a base portion axis and has a rear edge at one end. The bent portion is intermediate the cutting edge portion and the base portion. The rear edge of the base portion is serrated along the longitudinal axis. The serrations have a height of between 0.13 millimeters and 0.32 millimeters.

A razor blade cartridge includes: a housing: a razor blade fixedly mounted in the housing including: an edge that is elongated in a direction orthogonal to shaving direction, the edge includes a cutting edge formed in a single arch and opposing rear and front faces, wherein the cutting edge extends along a longitudinal direction which is orthogonal to shaving direction; a connection portion extended and bent from the edge toward a direction orthogonal to the longitudinal direction and orthogonal to the shaving direction, the connection portion having faces continuous with the front and rear faces of the edge respectively; and a support portion extending from the connection portion in the direction orthogonal to both the longitudinal direction and the shaving direction, the support portion supporting the edge and the connection portion, the connection portion and the support portion are a single body.

A blade grip assembly includes a blade having at least one cutting edge and at least one blade grip coupled to the blade. The blade grip includes a body and a plurality of teeth extending from the body. The plurality of teeth is on a plane different from a plane of the blade when the blade is in an unflexed position.

A razor blade cartridge includes: a housing: a razor blade fixedly mounted in the housing including: an edge that is elongated in a direction orthogonal to shaving direction, the edge includes a cutting edge formed in a single arch and opposing rear and front faces, wherein the cutting edge extends along a longitudinal direction which is orthogonal to shaving direction; a connection portion extended and bent from the edge toward a direction orthogonal to the longitudinal direction and orthogonal to the shaving direction, the connection portion having faces continuous with the front and rear faces of the edge respectively; and a support portion extending from the connection portion in the direction orthogonal to both the longitudinal direction and the shaving direction, the support portion supporting the edge and the connection portion, the connection portion and the support portion are a single body.

A device for supporting heads of a razor intended to be mounted on the handle of replaceable head razors, the handle having a coupling end for removably coupling a head. The supporting device includes a case element removably engageable with the coupling end, the case element having surfaces contacting, at least partially, the surface of the coupling end, generating a form-fit connection. The case element has attachment members for the engagement into corresponding attachment seats provided on the head. The present invention further relates to a head for razors and to a razor.