Razor blade with a printed object
View Patent ↗A method of making a razor cartridge including providing at least one razor blade having a cutting edge extending along a length of the razor blade and printing at least one printed object on the length is provided. The razor blade is positioned between the guard and the cap where the visible surface of the at least one razor blade includes a printed object. The printed object may extend continuously along the length of the razor blade and/or may have multiple portions having a comb-like structure. The printed object appears as a solid object to a viewer's naked eye. The solid object includes a plurality of printed ink dots not visible to the viewer's naked eye. The printed object of flexible, polymer ink may act as a guard element on the razor blade which helps with glide and to manage a user's skin (e.g., bulge) during shaving.
1. A method of making a razor blade for a razor cartridge, comprising the steps of:
a. providing a razor blade, the razor blade having a first side, an opposing second side, a cutting edge extending along a length of said razor blade;
b. printing at least one printed object on said length of said razor blade wherein said at least one printed object comprises a plurality of solid objects of one or more printed dots.
2. The method of claim 1 , wherein said at least one printed object is on the first side of the razor blade.
3. The method of claim 1 , wherein said at least one printed object is adjacent to the cutting edge.
4. The method of claim 1 , wherein said at least one printed object is on a blade body portion.
5. The method of claim 1 , wherein said at least one printed object comprises a surface adapted to contact a skin surface of a user during a normal use of the razor cartridge.
6. The method of claim 1 wherein said at least one printed object extends continuously along the length of said razor blade.
7. The method of claim 1 wherein said at least one printed object comprises a pathway structure.
8. The method of claim 1 , wherein said printing is inkjet printing.
9. The method of claim 8 , wherein an ink used in said inkjet printing is UV curable ink.
10. The method of claim 9 wherein said ink comprises a polymer.
11. The method of claim 9 wherein said ink is a flexible type.
12. The method of claim 1 , wherein the at least one printed object has a height dimension of from about 0.04 mm to about 0.20 mm as measured in a direction perpendicular to one of said sides of the razor blade.
13. The method of claim 1 , wherein the at least one printed object is printed on said razor blade at a distance of about 0.2 mm and about 0.8 mm back from a blade edge.
14. The method of claim 13 wherein step (b) is repeated until a three-dimensional structure of a plurality of printed dots is formed.
15. The method of claim 13 , wherein said 3-D structure is a cone shape.
16. The method of claim 13 , wherein said 3-D structure comprises one or more colors.
17. The method of claim 13 , wherein free portions within the solid object comprise no printed dots.
18. The method of claim 13 wherein there are substantially no free portions between said printed dots.
19. The method of claim 1 wherein said at least one printed object is visible to a user.