High temperature resistant pearlescent pigment
A technology of pearlescent pigments and high temperature resistance, which is applied in the treatment of inorganic pigments, fibrous fillers, dyeing low-molecular organic compounds, etc. It can solve the problems of many steps, low brightness, low saturation, difficult control and industrialization, and achieve High stability, good brightness and color saturation
Inactive Publication Date: 2014-06-11
许志永
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Problems solved by technology
[0004] However, the current research on high-grade pearlescent pigments in my country still cannot meet the needs of the market, most of them need to be imported from abroad, and the price is very expensive
In particular, the preparation method is cumbersome, the steps are many, the reaction process takes a long time, and it is not easy to control and realize industrialization; the interference effect between the layers of the finished pigment product is weak, and there are low brightness and saturation. , easy to fade and other deficiencies
Method used
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Embodiment
[0014] Example: This embodiment provides a high-temperature-resistant pearlescent pigment, which includes a sheet-shaped substrate 1, coated with a layer of coating layer 2, and coated with a layer of colorant 3 outside the coating layer to form a metal oxide compound. cladding.
[0015] Described coating layer, with at least one organic phosphorus of general formula (I) R1R2P (O) (OR3) (I) and / or general formula (II) R1P (O) (OR3) (OR4) (II) Compound coating, wherein R1 and R2 independently of each other are hydrogen or an organic group having 1 to 30 carbon atoms, provided that R1 and R2 are not simultaneously hydrogen, and R3 and R4 are independently of each other H or have 1 to 10 carbon atoms Alkyl group of carbon atoms.
[0016] The coloring agent is ferric oxide.
[0017] The sheet substrate is one of mica, synthetic mica or glass flakes.
[0018] In the specific implementation process, at a temperature of 70°C-80°C, the stirring of the substrate suspension is kept...
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The invention discloses a high temperature resistant pearlescent pigment which is characterized by comprising a flake substrate, the substrate is coated with a layer of a coating layer, and the coating layer is coated with a layer of a colorant to form a metal oxide composite coating. The coating layer is coated with at least one organic phosphorus compounds with a general formula (I) R1R2P (O) (OR3) (I) and / or a general formula (II) R1P (O) (OR3) (OR4) (II), wherein R1 and R2 are independently hydrogen or organic groups with 1-30 carbon atoms, and in condition that the R1 and R2 are hydrogen nonsimultaneously, R3 and R4 are independently H or alkyls with 1-10 of carbon atoms. The colorant is ferric oxide. The flake substrate is one from mica, synthetic mica and glass flake. The beneficial effects of the high temperature resistant pearlescent pigment are that: the high temperature resistant pearlescent pigment has angle-dependent optically-variable fluorescent effect, the brightness and color saturation of the high temperature resistant pearlescent pigment are good, if the high temperature resistant pearlescent pigment is used on a material object, the multi-light reflection effect can be achieved under the irradiation of light, and by coating with the inorganic metal oxide-ferric oxide, the high temperature resistant pearlescent pigment is higher in stability and may not fade at a high temperature.
Description
technical field [0001] The invention relates to a pearlescent pigment, in particular to a high-temperature-resistant pearlescent pigment that will not fade even at relatively high temperatures. Background technique [0002] Pearlescent pigments are non-toxic, odorless, acid and alkali resistant, non-flammable, non-explosive, non-conductive, non-migrating, easy to disperse, have high heat resistance and weather resistance, and fully meet strict environmental protection requirements. It has the shimmering effect of metallic pigments, which can produce the soft color luster of natural pearls, but the shimmering effect will only appear under the condition of light. [0003] The excellent performance of pearlescent pigments makes it a new idea in today's color field and has higher commodity value. Pearlescent pigments are widely used in various fields, such as automobile, motorcycle, bicycle coating, powder coating, architectural coating, pearlescent ink, pearlescent leather, pe...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C09C3/06C09C1/40C09C1/00C09C3/08
Inventor 许志永
Owner 许志永