Using colored biocidal multi-layer structure
View Patent ↗A method of using a colored biocidal multi-layer structure includes locating the colored biocidal multi-layer structure on a surface, observing the colored biocidal multi-layer structure over time, and observing a change in the color in at least a portion of the colored biocidal multi-layer structure, indicating that the colored biocidal multi-layer structure is less effective. The colored biocidal multi-layer structure includes a first layer of a first color, and a biocidal second layer on or over the first layer, the biocidal second layer of a second color different from the first color.
1. A method of using a colored biocidal multi-layer structure, comprising:
locating the colored biocidal multi-layer structure on a surface;
observing the colored biocidal multi-layer structure over time;
observing a change in the color in at least a portion of the colored biocidal multi-layer structure, indicating that the colored biocidal multi-layer structure is less effective; and
wherein the colored biocidal multi-layer structure includes a first layer of a first color, and a biocidal second layer on or over the first layer, the biocidal second layer of a second color different from the first color.
2. The method of claim 1 , further including locating another biocidal layer over the first layer.
3. The method of claim 1 , further including removing at least a portion of the biocidal second layer and locating another biocidal layer over the remaining biocidal structure.
4. The method of claim 1 , further including replacing the colored biocidal multi-layer structure on the surface.
5. The method of claim 1 , further including cleaning the colored biocidal multi-layer structure.
6. The method of claim 1 , further including changing the color of the colored biocidal multi-layer structure by cleaning the colored biocidal multi-layer structure.
7. The method of claim 1 , further including changing the color of the colored biocidal multi-layer structure by abrading the biocidal second layer.
8. The method of claim 1 , further including changing the color of the colored biocidal multi-layer structure by chemically modifying or dissolving the biocidal second layer.
9. The method of claim 1 , further including laminating a second biocidal second layer on or over the colored biocidal multi-layer structure.
10. The method of claim 1 , further including mechanically peeling the biocidal second layer.
11. The method of claim 1 , further including replacing the biocidal second layer.
12. The method of claim 1 , further including locating a second biocidal second layer over or on the colored biocidal multi-layer structure.
13. The method of claim 1 , further including illuminating the colored biocidal multi-layer structure and observing a response of the colored biocidal multi-layer structure to the illumination.
14. The method of claim 1 , further including illuminating the colored biocidal multi-layer structure with ultraviolet radiation and observing a response of the colored biocidal multi-layer structure to the ultraviolet radiation.
15. The method of claim 1 , further including treating the colored biocidal multi-layer structure to a material to enhance the biocidal efficacy of the colored biocidal multi-layer structure.
16. The method of claim 1 , further including heating the colored biocidal multi-layer structure to remove it from the surface.