Claims
- 1. A method for coloring an inorganic substrate, which comprises contacting the inorganic substrate in separate steps but in any order with (1) a cationic component comprising
- (a) a water soluble cationic resin or an aqueous solution of a water soluble cationic resin, said cationic resin comprising at least one of polyamide-polyamine-epichlorohydrin resins, polyamine-epichlorohydrin resins, polyvinylamine-polyacrylamide-epichlorohydrin resins and polyethyleneimine polymers,
- (b) an aqueous solution of said water soluble cationic resin and a water soluble cationic dye, or
- (c) an aqueous dispersion of said water soluble cationic resin, a cationic dispersing agent plus a water insoluble dye or pigment, and with (2) an anionic component comprising
- (d) an aqueous solution of a water soluble anionic dye,
- (e) an anionic dispersing agent or an aqueous solution of an anionic dispersing agent,
- (f) an aqueous solution of an anionic dispersing agent and a water soluble anionic dye, or
- (g) an aqueous dispersion of an anionic dispersing agent plus a water insoluble dye or pigment and with at least one of the cationic component (1) or the anionic component (2) containing a colorant comprising at least one of a pigment, a direct dye, an acid dye, a reactive dye, a vat dye, a disperse dye, and an anionic fluorescent brightner.
- 2. The method according to claim 1, wherein said cationic component (1) is an aqueous solution containing about 0.1 to 50% by weight of said cationic resin.
- 3. The method according to claim 1, wherein said anionic component (2) is an anionic solution or dispersion containing about 0.1 to 50% by weight of an anionic dye.
- 4. The method according to claim 1, wherein said inorganic substrate is an inorganic substrate in the form of beads, fibers, boards or cloths.
- 5. The method according to claim 1, wherein said anionic dispersing agent comprises at least one of a salt of a fatty acid, a sulfate of a higher alcohol, a naphthalene sulfonateformaldehyde condensate and a polyalkyleneoxyalcohol sulfate.
- 6. The method according to claim 1, wherein the weight ratio of said cationic resin in said cationic component (1) to the weight of said anionic dye or said anionic dispersing agent in said anionic component (2) is about 10 to 90 to 90 to 10.
- 7. The method according to claim 1, wherein the amount of said cationic resin is about 0.01 to 10% by weight based on the weight of said inorganic substrate.
- 8. The method according to claim 1, wherein the amount of said anionic dye or colorant in said anionic component (2) is about 0.01 to 10% by weight based on the weight of said inorganic substrate.
- 9. The method according to claim 1, wherein said contacting comprises distributing said inorganic substrate in an aqueous medium, adding said cationic component (1) to the inorganic substrate-containing aqueous medium while stirring, successively adding said anionic component (2) to the inorganic substrate-containing aqueous medium while stirring, and recovering said colored inorganic substrate.
- 10. The method according to claim 9, wherein said contacting is at a temperature ranging from about 10.degree. C. to 100.degree. C.
- 11. The method according to claim 1, wherein said contacting is carried out by spraying said substrate with or dipping said substrate in said cationic component (1) and said anionic component (2).
- 12. An inorganic substrate colored by the method of claim 1.
- 13. The method according to claim 1, wherein said cationic component (c) further contains a cationic water soluble dye.
- 14. The method according to claim 1, wherein said anionic component (g) further contains an anionic water soluble dye.
- 15. The method according to claim 1, wherein said inorganic substrate is an inorganic pigment or a metallic powder.
- 16. The method according to claim 1, wherein the inorganic substrate is glass beads, glass fibers, rock wool, mineral wool, mineral fiber boards, mineral fiber cloths, concrete molded materials, titanium dioxide, calcium carbonate, alumina white or aluminum powder.
- 17. The method according to claim 1, wherein said cationic resin is polyamide-polyamine-epichlorohydrin.
- 18. The method according to claim 1, wherein said cationic resin is polyvinylamide-polyacrylamide-epichlorohydrin.
- 19. The method according to claim 1, wherein said cationic resin is polyethyleneimine polymer.
- 20. The method according to claim 1, wherein the cationic component is (a), and the anionic component is a member selected from (d), (f) and (g).
Priority Claims (1)
Number |
Date |
Country |
Kind |
48-38155 |
Apr 1973 |
JPX |
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Parent Case Info
This is a continuation, of application Ser. No. 457,303, filed Apr. 2, 1974, new abandoned.
US Referenced Citations (11)
Foreign Referenced Citations (1)
Number |
Date |
Country |
882067 |
Nov 1961 |
GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
457303 |
Apr 1974 |
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