A subassembly for a shaving razor cartridge with a base having a front wall with a top surface and a rear wall with a top surface. At least one blade is mounted to the base between the front wall and the rear wall. The at least one blade has a cutting edge positioned at least 0.5 mm above a plane tangent to the top surface of the front wall and the top surface of the rear wall.

The present disclosure provides a razor blade coating by a physical vapor deposition method through performing a deposition with a single composite target composed of dissimilar materials with their area ratio defined to be varied in the single composite target in the direction of transferring the razor blade subject to the deposition, thereby forming a single layer in which the composition ratio of the dissimilar materials gradually changes in the thickness direction of the coating layer to improve the durability of the razor blade coating layer.

The invention discloses a novel solution and process comprising a modified solvent for providing enhanced blade edge attributes.

A subassembly for a shaving razor cartridge with a base having a front wall with a top surface and a rear wall with a top surface. At least one blade is mounted to the base between the front wall and the rear wall. The at least one blade has a cutting edge positioned at least 0.5 mm below a plane tangent to the top surface of the front wall and the top surface of the rear wall.

A shaving razor cartridge with a housing having a top surface and a bottom surface. A guard is at the front of the housing. A cap is at a rear of the housing. At least one blade is mounted to the housing between the guard and the cap. The housing has a wall defining an opening extending from the top surface to the bottom surface that is configured to receive a portion of a handle. The wall having a pair of arms each with a distal end extending toward each other defining a gap. The bridge is a thermo-plastic elastomer that is different than a polymeric material of the housing.

In a first aspect, the present disclosure relates to a razor cartridge comprising a housing having a leading longitudinal side and a trailing longitudinal side and one or more shaving blades disposed between the leading longitudinal side and a trailing longitudinal side. Further, the razor cartridge comprises a hygromorphic layer disposed between the leading longitudinal side and the trailing longitudinal side and adjacent to the one or more shaving blades.

Provided is a shaver including a cartridge and a handle body. The cartridge includes a cartridge body formed in a rectangular frame shape; a plurality of blades installed in the cartridge body in the side-to-side direction of the cartridge body, each of the blades having a front portion bent downward; pair of side fixation slots formed on left and right frames of the cartridge body, respectively, so as to fix the left and right ends of each blade; a supporter connecting upper and lower frames of the cartridge body; and an inside fixation slot formed on the supporter so as to fix a portion of each blade. The handle body is coupled to the cartridge body.

A handle for a shaving razor in which the handle comprises a frame and a movable member assembly operably coupled to the frame such that the frame is disposed between the movable member assembly and where the movable member assembly upper and lower portions are configured to move both above and below the frame. The movement can be linear or rotational. The movable member assembly comprises one or more springs.

Non-metallic razor blades, such as those made with ceramic or glass, and more particularly to one or more unique features of such blades that improve the durability and useable life of the blade. The non-metallic blade may have a single-bevel design with a unique geometry. The blade may be made with a chemically strengthened glass. The blade may be made with single-crystal alpha-alumina in which the razor edge is oriented perpendicular to the c-axis. A razor assembly also is provided such as for use with non-metallic blades. The mounting head of the assembly is configured to restrict rotation of the blade about a pivot axis that is parallel to the blade edge. The mounting head also is configured to enable the blade to move axially in a direction perpendicular to the blade edge. The mounting head may orient the blades to enable passage of shaved hair.

A novel cutting-edge structure and method and apparatus for manufacturing the cutting-edge structure is provided. The cutting-edge structure is comprised of naturally derived or renewable material at greater than 50% by volume fraction. In one embodiment, the naturally derived material is a cellulose nanostructure such as a cellulose nanocrystal. The cellulose nanocrystal is processed using a base or mold structure to provide a cutting edge of any shape such as linear or circular edge structures. The process includes dual cure steps to produce an optimal cutting-edge structure without shrinkage. The formed cutting-edge structure can be utilized as a razor blade as it is formed with very sharp tip and edge suitable for cutting hair. The base structure can form one or more cutting-edge structures simultaneously.