Multicolor fixture finishes

Patent metadata

Field	Value
Publication number	US-11065642-B2
Application number	US-201816230546-A
Country	US
Kind code	B2
Filing date	Dec 21, 2018
Priority date	Jan 6, 2018
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

A method of applying a multi-color finish to a plumbing fixture includes depositing a first coating on the plumbing fixture; selectively applying a masking material in a graduated fashion over at least a portion of the first coating to define a gradient from a first portion of the plumbing fixture that is substantially completely covered by the masking material to a second portion of the plumbing fixture that has substantially no masking material; depositing a second coating over the masking material; and removing the masking material from the plumbing fixture such that the plumbing fixture has a surface finish including a transition region representing a gradual transition between the first coating and the second coating.

First claim

What is claimed is:

1. A method of applying a multi-color finish to a plumbing fixture comprising:
depositing a first coating on the plumbing fixture;
selectively applying a masking material in a graduated fashion over at least a portion of the first coating to define a gradient from a first portion of the plumbing fixture that is substantially completely covered by the masking material to a second portion of the plumbing fixture that has substantially no masking material;
depositing a second coating over the masking material; and
removing the masking material from the plumbing fixture such that the plumbing fixture has a surface finish including a transition region representing a gradual transition between the first coating and the second coating;
wherein selectively applying the masking material in a graduated fashion comprises spraying the masking material at varying intensities along different angles relative to the plumbing fixture.

2. The method according to claim 1 , wherein the transition region includes a first percentage of the first coating and a second percentage of the second coating.

3. The method according to claim 2 , wherein the first percentage is in a range of about 5% to about 95% with the remaining balance as the second percentage.

4. The method according to claim 1 , wherein the transition region includes a plurality of percentages of the first coating and a plurality of percentages of the second coating.

5. The method according to claim 1 , wherein the first coating defines a first finish having a first appearance, and wherein the second coating defines a second finish having a second appearance that is different from the first appearance.

6. The method according to claim 5 , wherein the first finish and the second finish are selected from at least one of polished chrome, brushed chrome, polished French gold, polished titanium, brushed titanium, polished rose gold, polished modern gold, polished tungsten, polished modern brass, satin titanium, polished satin chrome, satin bronze, polished brass, satin brass, oil-rubbed bronze, polished nickel, brushed nickel, or matte black.

7. The method according to claim 1 , wherein the step of depositing the first coating and the step of depositing the second coating are conducted using at least one of physical vapor deposition (PVD), chemical vapor deposition (CVD), atomic layer deposition (ALD), electroplating, dip coating, or spray coating.

8. The method according to claim 7 , wherein the step of depositing the first coating and the step of depositing the second coating are each conducted using physical vapor deposition (PVD), and wherein the PVD is conducted as the plumbing fixture is rotated on a turntable.

9. The method according to claim 8 , wherein the PVD is selected from at least one of cathodic-arc evaporation, sputter deposition, or high-impulse power magnetron sputtering (HIPIMS).

10. The method according to claim 1 , wherein the masking material includes at least one of molybdenum disulfide, tungsten disulfide, boron nitride, or graphite.

11. The method according to claim 10 , wherein after the step of masking, the masking material is cured at a temperature in a range of about 60° C. to about 250° C. for a time in a range of about 15 minutes to about 120 minutes.

12. The method according to claim 1 , wherein the masking material is applied by spraying, and wherein the spraying is conducted as the plumbing fixture is rotated on a turntable.

13. The method according to claim 1 , wherein the step of depositing the second coating comprises depositing the second coating on the first portion and the second portion.

14. The method according to claim 1 , wherein the step of removing the masking material comprises washing the plumbing fixture using at least one of a water-based wash, an acid wash, or an organic solvent-based wash.

15. The method according to claim 1 , wherein the step of depositing the first coating on the plumbing fixture includes depositing the first coating on the entire surface area of the plumbing fixture.

16. The method according to claim 1 , wherein the step of depositing the first coating on the plumbing fixture includes depositing the first coating on only a portion of the surface area of the plumbing fixture.

17. The method according to claim 1 , wherein the masking material is a dry lubricant.

18. The method according to claim 1 , further comprising depositing a primer layer on the plumbing fixture prior to depositing the first coating.

19. The method according to claim 1 , wherein the plumbing fixture is a faucet.

Assignees

• Kohler Co

Inventors

• Moh Sarfaraz
• Clarke Gary N

Classifications

• C25D7/00

  Electroplating characterised by the article coated · CPC title

• B05D5/066 Primary

  achieved by multilayers · CPC title

• C25D5/627 Primary

  Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance · CPC title

• C23C4/08

  containing only metal elements (C23C4/073 takes precedence) · CPC title

• B44C1/00

  Processes, not specifically provided for elsewhere, for producing decorative surface effects (decorating textiles D06Q) · CPC title