Razor blades
A method of treating one or more coated razor blade edges comprising the steps of: (a) treating said one or more coated razor blade edges in a solvent, thereby modifying said one or more coated razor blade edges in said solvent; (b) treating said modified one or more coated razor blade edges in said modified solvent and further modifying said one or more modified coated razor blade edges and said modified solvent; and (c) repeating step (b) one or more times.
1. A method of treating one or more coated razor blade edges comprising the steps of:
(a) treating said one or more coated razor blade edges in a solvent, thereby modifying said one or more coated razor blade edges in said solvent;
(b) treating said modified one or more coated razor blade edges in said modified solvent and further modifying said one or more modified coated razor blade edges and said modified solvent; and
(c) repeating step (b) one or more times.
2. The method of claim 1 further comprising step (d) obtaining a wool felt cut force value of said coated blade edges after step (b) or step (c).
3. The method of claim 2 wherein said wool felt cut force value is within a range of about 0.7 pounds to about 1.4 pounds.
4. The method of claim 2 wherein said step (c) is discontinued when the wool felt cut force value obtained in step (d) is about 0.7 lbs to about 1.4 lbs for five cuts after one or more repetitions of step (b).
5. The method of claim 1 wherein said step (c) is discontinued after one to 100 times.
6. The method of claim 1 wherein a coating on said coated razor blade edges comprises polymeric material.
7. The method of claim 6 wherein said polymeric material comprises a fluoropolymer.
8. The method of claim 6 wherein said treating step (a) is applied to said coating after said polymer coating has been sprayed, sintered or any combination thereof.
9. The method of claim 1 wherein said solvent comprises C 14 F 24 .
10. The method of claim 1 wherein said solvent comprises perfluorotetradecahydrophenanthrene.
11. The method of claim 1 wherein said modified solvent comprises one or more defluorination compounds.
12. The method of claim 11 wherein said one or more defluorination compounds comprise C 14 F n .
13. The method of claim 12 wherein n=10 to 23.
14. The method of claim 12 wherein said one or more defluorination compounds comprise C 14 F 10 , C 14 F 14 , or C 14 F 18 , or any combination thereof.
15. The method of claim 14 wherein the concentration of said C 14 F 18 compound in said solvent is about 0.05% to about 1.0%, the concentration of said C 14 F 14 compound in said solvent is about 0.05% to about 1.0%, and the concentration of said C 14 F 10 compound in said solvent is about 0.05% to about 1.0%.
16. The method of claim 11 wherein the concentration of any one of the one or more defluorination compounds in the modified solvent is less than or equal to about one part per million.
17. The method of claim 11 wherein the concentration of the one or more defluorination compounds ranges from about 0.05% to about 3%.
18. The method of claim 1 wherein said treating step (a) or step (b) further comprises a temperature in the range of about 500° F. to about 700° F., and wherein said treating step (a) or (b) is applied for a time ranging from about 30 seconds to about 1 hour.
19. The method of claim 1 further comprising the step (e) of removing, none of, portions of, or all of the modified coated blade edges from said modified solvent.
20. The method of claim 1 further comprising, prior to step (b) or prior to step (c), a step (f) of providing unmodified coated razor blade edges in said modified solvent.
21. The method of claim 20 wherein said unmodified coated razor blade edges are comprised of polymer coated blade edges which have not been treated by said solvent or said modified solvent.
22. The method of claim 1 wherein a run comprises said treating steps (a) and (b) performed one time.
23. The method of claim 1 wherein said treating step (a) or step (b) further comprises placing the blades in a vessel, sealing the vessel, placing the solvent in the vessel, heating the vessel, removing the solvent, or cooling the blades.
24. The method of claim 1 wherein said treating steps partially remove said coating.
25. The method of claim 1 wherein said modified solvent comprises Teflon particles.
26. The method of claim 1 wherein said modified solvent comprises iron, carbon-based steel, stainless-steel, or particles, surfaces or compounds thereof.
27. The method of claim 1 wherein said modified solvent comprises a yellow color.