Coating for cutting implements
A cutting implement having a pair of cutting blades and a coating is provided. The coating has titanium chromium nitride and provides the cutting blades with a satin silver appearance. In some embodiments, the titanium chromium nitride coating has a thickness in a range between about 0.3 microns and 0.5 microns, a surface roughness in a range of about 15 to 25 10 −6 inch/inch, and a hardness in a range of about 5.7 to about 9.1 gigapascals.
1 . A cutting implement comprising:
a pair of complementary cutting blades, each having a cutting edge; and
a coating disposed on each of the complementary cutting blades, the coating having a multiple component barrier of titanium chromium nitride.
2 . The cutting implement according to claim 1 , wherein the coating has a thickness in a range between 0.3 and 0.5 microns.
3 . The cutting implement according to claim 1 , wherein the cutting implement is selected from the group consisting of a pair of scissors, a rotary style paper trimmer, and a guillotine paper trimmer.
4 . The cutting implement according to claim 1 , wherein the coating is deposited by a process selected from a group consisting of cathode arc plasma and reactive magnetron sputtering.
5 . The cutting implement according to claim 1 , wherein the coating provides the cutting blades with a satin silver appearance.
6 . The cutting implement according to claim 1 , wherein the coating has a satin gold appearance.
7 . The cutting implement according to claim 1 , wherein the cutting implement is a pair of scissors.
8 . The cutting implement according to claim 3 , wherein the blades are formed of a material selected from the group consisting of steel, stainless steel, 420 stainless steel, heat-treated steel, heat treated stainless steel, and heat treated 420 stainless steel.
9 . A cutting implement comprising:
a pair of complementary cutting blades, each having a cutting edge; and
a coating disposed on each of the complementary cutting blades, the coating selected from the group consisting of titanium nitride, chromium nitride, titanium chromium nitride.
10 . A cutting implement comprising:
a pair of complementary cutting blades, each having a cutting edge; and
a coating disposed on each of the complementary cutting blades, wherein the coating includes titanium chromium nitride.
11 . The cutting implement according to claim 10 , wherein the coating has a thickness in a range between 0.3 and 0.5 microns.
12 . The cutting implement according to claim 10 , wherein the cutting implement is selected from the group consisting of a pair of scissors, a rotary style paper trimmer, and a guillotine paper trimmer.
13 . The cutting implement according to claim 12 , wherein the coating has a satin silver appearance.
14 . The cutting implement according to claim 12 , wherein the coating has a satin gold appearance.
15 . A cutting implement comprising:
a cutting blade having a cutting edge; and
a titanium chromium nitride coating disposed on each of the complementary cutting blades, wherein the coating is applied to the blades by a process selected from the group consisting of chemical vapor deposition, physical vapor deposition, reactive magnetron sputtering, and cathode arc plasma.
16 . The cutting implement according to claim 15 , wherein the coating has a satin silver appearance.
17 . The cutting implement according to claim 15 , wherein the cutting implement is selected from the group consisting of a pair of scissors, a rotary style paper trimmer, and a guillotine paper trimmer.
18 . The cutting implement according to claim 16 , the coating further comprising titanium nitride.
19 . A cutting implement comprising:
a cutting blade, having a cutting edge; and
a coating having a satin silver appearance disposed on the cutting blade, the coating comprising titanium chromium nitride, wherein the coating has a thickness in a range between about 0.3 to about 0.5 microns.
20 . The cutting implement according to claim 19 , the coating further comprising titanium nitride and chromium nitride.