US4010293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enhancement of iridescent colors to provide vivid colorants and printing inks
Assignee: Individual
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Filing: 1975-02-13
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Granted: 1977-03-01
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Expires: 1995-02-13
Abstract
Abstract Iridescent pigments, of the type which comprise colorless micaceous substrates having thereon at least one overcoating of an essentially transparent material with a refractive index usually over about 2.0, can be enhanced in coloration by applying to them a solution of a coloring matter which possesses an absorption band complementary to the interference reflection color of the pigment, and which thereby absorbs that complementary color. The resulting vivid intensity of the iridescent coloration is far out of proportion to the concentration of the coloring matter and to the intensity of the adsorption band. The enhanced colors are useful in novel colorants, printing inks, recording systems, and copy papers.
Inventors
- 👤 Chester Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:46
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/0015; C09C1/0021; B; B05; B05D; B05D5/00; B05D5/06; C09C1/0081; C09C1/28; C09C1/30; C09D; C09D11/00; C09D11/02; C09D11/03; C09D11/037; G; G03; G03G; G03G9/00; G03G9/08; G03G9/09; G03G9/0926; G03G9/097; G03G9/09708; G03G9/09716; C01; C01P; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84; C09C2200/00; C09C2200/10; C09C2200/102; C09C2200/40; C09C2200/402; C09C2200/403; C09C2200/404; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/251; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
76 words
A method of enhancing the interference reflection color of an iridescent pigment of the type comprising an essentially transparent plate-like base substrate having thereon at least one overcoating of an essentially transparent material having a refractive index which is substantially greater than that of said base substrate, said method comprising, applying to said iridescent pigment a solution of a solvent-soluble coloring matter which possesses an absorption band complementary to the interference reflection color of said pigment.
Claim 2
Independent Claim
76 words
A method of enhancing the interference reflection color of an iridescent pigment of the type comprising an essentially transparent plate-like base substrate having thereon at least one overcoating of an essentially transparent material having a refractive index which is substantially greater than that of said base substrate, said method comprising, applying to said iridescent pigment a solution of a solvent-soluble coloring matter which possesses an absorption band complementary to the interference reflection color of said pigment.
Claim 3
Independent Claim
71 words
A method of enhancing the interference reflection color of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one overcoating of an essentially transparent material having a refractive index which is greater than about 2.0, said method comprising, applying to said iridescent pigment a solution of a solvent-soluble coloring matter having an absorption band complementary to the interference reflection color of the said pigment.
Claim 4
Independent Claim
71 words
A method of enhancing the interference reflection color of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one overcoating of an essentially transparent material having a refractive index which is greater than about 2.0, said method comprising, applying to said iridescent pigment a solution of a solvent-soluble coloring matter having an absorption band complementary to the interference reflection color of the said pigment.
Claim 5
Dependent Claim
17 words
The method of claim 1 wherein the iridescent pigment is a micaceous substrate overcoated with titanium dioxide.
Claim 6
Dependent Claim
17 words
The method of claim 1 wherein the iridescent pigment is a micaceous substrate overcoated with zirconium dioxide.
Claim 7
Independent Claim
98 words
A method of printing by forming an intensely colored iridescent indicia, said method comprising, forming on a base web a thin coating of an iridescent pigment of the type comprising an essentially transparent plate-like base substrate having thereon at least one overcoating of an essentially transparent material having a refractive index which is substantially greater than that of said base substrate, said pigment displaying an interference reflection color, and applying to selected areas of said coating a solution of a solvent-soluble coloring matter which possesses an absorption band complementary to the interference reflection color of said iridescent pigment.
Claim 8
Independent Claim
98 words
A method of printing by forming an intensely colored iridescent indicia, said method comprising, forming on a base web a thin coating of an iridescent pigment of the type comprising an essentially transparent plate-like base substrate having thereon at least one overcoating of an essentially transparent material having a refractive index which is substantially greater than that of said base substrate, said pigment displaying an interference reflection color, and applying to selected areas of said coating a solution of a solvent-soluble coloring matter which possesses an absorption band complementary to the interference reflection color of said iridescent pigment.
Claim 9
Independent Claim
93 words
The method of applying a color to a base which comprises, applying to said base a thin coating of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one overcoating of an essentially transparent material having a refractive index greater than about 2.0, said pigment displaying an interference reflection color, and applying to said coating a solution of a solvent-soluble coloring matter having an absorption band complementary to the interference reflection color of the iridescent pigment, whereupon an intense iridescent color is developed on said coating.
Claim 10
Independent Claim
93 words
The method of applying a color to a base which comprises, applying to said base a thin coating of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one overcoating of an essentially transparent material having a refractive index greater than about 2.0, said pigment displaying an interference reflection color, and applying to said coating a solution of a solvent-soluble coloring matter having an absorption band complementary to the interference reflection color of the iridescent pigment, whereupon an intense iridescent color is developed on said coating.
Claim 11
Independent Claim
90 words
A method of printing by forming an intensely colored iridescent indicia, said method comprising, forming on a base web a thin coating of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one overcoating of an essentially transparent material having a refractive index greater than about 2.0, said pigment displaying an interference reflection color, and applying to selected areas of said coating a solution of a solvent-soluble coloring matter having an absorption band complementary to the interference reflection color of the iridescent pigment.
Claim 12
Independent Claim
90 words
A method of printing by forming an intensely colored iridescent indicia, said method comprising, forming on a base web a thin coating of an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one overcoating of an essentially transparent material having a refractive index greater than about 2.0, said pigment displaying an interference reflection color, and applying to selected areas of said coating a solution of a solvent-soluble coloring matter having an absorption band complementary to the interference reflection color of the iridescent pigment.
Claim 13
Dependent Claim
17 words
The method of claim 7 wherein the iridescent pigment is a micaceous substrate overcoated with titanium dioxide.
Claim 14
Dependent Claim
17 words
The method of claim 7 wherein the iridescent pigment is a micaceous substrate overcoated with zirconium dioxide.
Claim 15
Dependent Claim
90 words
A colorant comprising an intensely colored iridescent material dispersed in a liquid, said intensely colored iridescent material comprising an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one overcoating of an essentially transparent material having a refractive index substantially greater than that of the substrate, said pigment displaying an interference reflection color, said pigment further having upon its surface a film comprising a solvent-soluble coloring matter having an absorption band which absorbs the color complementary to the interference reflection color of the pigment.
Claim 16
Dependent Claim
90 words
A colorant comprising an intensely colored iridescent material dispersed in a liquid, said intensely colored iridescent material comprising an iridescent pigment of the type comprising an essentially transparent micaceous substrate having thereon at least one overcoating of an essentially transparent material having a refractive index substantially greater than that of the substrate, said pigment displaying an interference reflection color, said pigment further having upon its surface a film comprising a solvent-soluble coloring matter having an absorption band which absorbs the color complementary to the interference reflection color of the pigment.
Claim 17
Dependent Claim
99 words
A printing medium comprising, an intensely colored material formed by wetting an iridescent pigment of the type which displays an interference reflection color and which comprises an essentially transparent micaceous substrate having thereon at least one overcoating of an essentially transparent material having a refractive index greater than about 2.0, said pigment wetted with a solution of a solvent-soluble coloring matter having an absorption band complementary to the interference reflection color of the iridescent pigment which provides a film of said coloring matter upon the pigment's surface, said intensely colored material being dispersed in a liquid printing ink vehicle.
Claim 18
Dependent Claim
99 words
A printing medium comprising, an intensely colored material formed by wetting an iridescent pigment of the type which displays an interference reflection color and which comprises an essentially transparent micaceous substrate having thereon at least one overcoating of an essentially transparent material having a refractive index greater than about 2.0, said pigment wetted with a solution of a solvent-soluble coloring matter having an absorption band complementary to the interference reflection color of the iridescent pigment which provides a film of said coloring matter upon the pigment's surface, said intensely colored material being dispersed in a liquid printing ink vehicle.
Claim 19
Dependent Claim
18 words
The printing medium of claim 11 wherein the iridescent pigment is a micaceous substrate overcoated with titanium dioxide.
Claim 20
Dependent Claim
14 words
The printing medium of claim 11 wherein the coloring matter is an oil-soluble dye.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |