Colored system
A colored system including a coated substrate and a color pigment that adheres to the coated substrate, and a method for producing the colored system are described. The disclosed method adheres effectively the color pigments to the coated substrates. The resulting colored system avoids their separation during coating applications. The colored metallic paints/inks can be prepared by mixing a color pigment solution with a coated substrate solution. The resulting colored system displays vivid color and strong metallic luster.
1. A colored system, comprising:
a plurality of color pigments; and
a plurality of coated substrates, each of the coated substrates including a substrate having a surface and a polymer coating surrounding the surface of the substrate, the polymer coating including polymer chains having the density of the polymer chains is in the range from 0.001 to 2 chain/nm 2 ,
wherein each of the polymer chains is obtained by polymerizing monomers from the surface of the substrate via an initiator moiety that is covalently bonded to the surface of the substrate so that the polymer chains are covalently bonded to the surface of the substrate,
the polymer chains are not crosslinked to one another such that each of the chains has flexibility,
at least one of the monomers of each of the polymer chains contains at least one functional group that is capable of adhering to the color pigments,
the color pigments adhere to the coated substrates via the at least one functional group that is capable of adhering to the color pigments, and
a thickness of the coating of the coated substrates varies less than 15% of an average thickness of the coating.
2. The colored system of claim 1 , wherein the colored pigments adhere to the coated substrates such that an amount of the colored pigments that adhere to the coated substrates is greater than 90% of an original amount of the colored pigments.
3. The colored system of claim 1 , wherein the at least one functional group contains an ionic charge.
4. The colored system of claim 1 , wherein the at least one functional group includes quaternary amines.
5. The colored system of claim 1 , wherein the substrate includes aluminum.
6. The colored system of claim 1 , further comprising a solvent.
7. The colored system of claim 6 , wherein the solvent is selected from the group consisting of water, lower alcohols, ethers, esters, ketones, glycol ethers, pyrrolidones, sulfoxides and/or mixtures thereof.
8. The colored system of claim 6 , wherein the colored system does not include any additional dispersants and/or resins other than those that are attached to the surface of the substrate.
9. The colored system of claim 8 , wherein the system is a colored metallic ink or paint system.
10. A method of producing the colored system of claim 1 , comprising:
mixing a dispersion of the coated substrates and a dispersion of the color pigments.
11. The method of claim 10 , further comprising adding a molecular reactant to quaternize a tertiary amine group that is included in the polymer coating of the coated substrate.
12. An article, comprising:
a coating that comprises the colored system of claim 1 .