WO2006015530A1 - Pigment ayant une dependance angulaire des couleurs d’interference et son procede de fabrication - Google Patents
Pigment ayant une dependance angulaire des couleurs d’interference et son procede de fabrication Download PDFInfo
- Publication number
- WO2006015530A1 WO2006015530A1 PCT/CN2005/000828 CN2005000828W WO2006015530A1 WO 2006015530 A1 WO2006015530 A1 WO 2006015530A1 CN 2005000828 W CN2005000828 W CN 2005000828W WO 2006015530 A1 WO2006015530 A1 WO 2006015530A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- refractive index
- color
- suspension
- oxide layer
- metal oxide
- Prior art date
Links
- 239000000049 pigment Substances 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000003086 colorant Substances 0.000 title abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 26
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 239000010410 layer Substances 0.000 claims description 41
- 150000004706 metal oxides Chemical class 0.000 claims description 34
- 229910044991 metal oxide Inorganic materials 0.000 claims description 32
- 239000000725 suspension Substances 0.000 claims description 26
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- DEPUMLCRMAUJIS-UHFFFAOYSA-N dicalcium;disodium;dioxido(oxo)silane Chemical compound [Na+].[Na+].[Ca+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O DEPUMLCRMAUJIS-UHFFFAOYSA-N 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- 229910018626 Al(OH) Inorganic materials 0.000 claims description 2
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 2
- 229910021538 borax Inorganic materials 0.000 claims description 2
- 239000011247 coating layer Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000004328 sodium tetraborate Substances 0.000 claims description 2
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 4
- 230000007073 chemical hydrolysis Effects 0.000 abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- 239000000243 solution Substances 0.000 description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000000377 silicon dioxide Substances 0.000 description 5
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 4
- 239000010445 mica Substances 0.000 description 4
- 229910052618 mica group Inorganic materials 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 4
- 239000004115 Sodium Silicate Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 229910052911 sodium silicate Inorganic materials 0.000 description 3
- 239000000020 Nitrocellulose Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 235000019646 color tone Nutrition 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 150000002736 metal compounds Chemical class 0.000 description 2
- 229920001220 nitrocellulos Polymers 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 150000002902 organometallic compounds Chemical class 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000007704 wet chemistry method Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002294 plasma sputter deposition Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 235000013759 synthetic iron oxide Nutrition 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
- C09C1/0024—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings comprising a stack of coating layers with alternating high and low refractive indices, wherein the first coating layer on the core surface has the high refractive index
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
- C09C1/0024—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings comprising a stack of coating layers with alternating high and low refractive indices, wherein the first coating layer on the core surface has the high refractive index
- C09C1/003—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings comprising a stack of coating layers with alternating high and low refractive indices, wherein the first coating layer on the core surface has the high refractive index comprising at least one light-absorbing layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
- C09C2200/10—Interference pigments characterized by the core material
- C09C2200/102—Interference pigments characterized by the core material the core consisting of glass or silicate material like mica or clays, e.g. kaolin
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
- C09C2200/30—Interference pigments characterised by the thickness of the core or layers thereon or by the total thickness of the final pigment particle
- C09C2200/301—Thickness of the core
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C2220/00—Methods of preparing the interference pigments
- C09C2220/10—Wet methods, e.g. co-precipitation
- C09C2220/106—Wet methods, e.g. co-precipitation comprising only a drying or calcination step of the finally coated pigment
Definitions
- the present invention relates to a color changing pigment.
- it relates to a color-changing pigment having different interference colors depending on the angle of observation; the present invention also relates to a method of producing such a color-changing pigment. Background technique
- Multi-layered color-changing pigments exhibit a color change between two or more strong interference colors depending on the viewing angle.
- such flop pigments are mostly formed by coating a metal oxide and a non-metal oxide on a surface of a substrate by a vapor phase method, a plasma sputtering method or a wet chemical method to form a multilayer structure. Due to the difference in the substrate, the production methods of the pigments are also different, but there are problems such as complicated process, high price, and small color variation range.
- a multi-layer color-changing pigment based on an opaque metal foil or a metal oxide is a vacuum coating method, a substrate formed on a mesh or a dissolvable film, or a side of a metal foil, or two The surface is coated with a metal oxide which is alternately coated with a material having a low refractive index and a high refractive index, and different color change and discoloration ranges are obtained by controlling the optical thickness of the coating layer, and then peeled off.
- This process requires high precision equipment, high chemical purity, high process control requirements, and low production yield, which results in high production costs, which limits its large number of applications; in addition, the color and range of the pigment are not easily controlled.
- a multilayer color-changing pigment based on aluminum powder or synthetic iron oxide sheet (prepared by using high temperature and high pressure method), which is alternately coated with a low refractive index and a high refractive index on the surface of the substrate by vapor deposition.
- a metal oxide which is carried into an ebullated bed by using an inert gas.
- the organometallic compound is adsorbed on the substrate and decomposed into a metal oxide at a certain temperature to be deposited on the substrate.
- the surface forms a coating of the desired thickness.
- This process has the problem that the substrate is effectively dispersed in the fluidized bed, and it is difficult to measure and control.
- the use of organometallic compounds also has environmental problems.
- the pigment manufacturing process is complicated, the equipment requirements are high, the substrate preparation cost is high, and the process control precision is required, so that the product also has a problem of high price and limited use.
- a color-changing pigment based on synthetic silica (this substrate is prepared by coating a certain concentration of water glass on a special equipment and dried and peeled), and hydrolyzing the soluble inorganic by a wet chemical process.
- U.S. Patent 6,692,561 is a strong color interference color pigment based on mica.
- the pigment is coated on the mica substrate with the first layer being a low refractive index metal oxide layer, and the second layer is a high refractive index metal oxide layer. Since the optimum thickness of the oxide layer is not given, it can be considered The invention does not solve the substantial problem. And from the data analysis of its tests, the invention test uses a fixed angle. It can be seen that its color variation range is very small, still belongs to the category of ordinary color-changing pigments, and does not solve the problem of flop.
- the thickness of the oxide coating on the substrate is difficult to measure and is typically calculated by measuring the percentage of the coated oxide layer as a percentage of the total pigment weight, i.e., the coverage.
- An object of the present invention is to provide a color-changing pigment which is inexpensive, has a simple manufacturing process, and exhibits different strong interference colors depending on the angle of observation.
- Another object of the present invention is to provide a process for producing the above color changing pigment.
- the color-changing pigment of the present invention is a synthetic silicate plate as a substrate, and the surface of the synthetic silicate plate is alternately coated with a metal oxide layer having a refractive index of more than 1.8 and a refractive index of less than 1.8.
- the oxide layer, the cladding layer is at least three layers, and the oxide layer having a refractive index of less than 1.8 is always located between the metal oxide layers having a refractive index greater than 1.8.
- the above synthetic silicate flakes are sodium calcium silicate flakes having a thickness of 0.1 to 10 ⁇ m and a particle diameter of 5 to 1500 ⁇ m, preferably sodium silicate having a thickness of 1 to 5 ⁇ m and a particle diameter of 30 to 150 ⁇ m. Sheet.
- the coating ratio of the metal oxide layer having a refractive index of more than 1.8 is 1 to 50%, preferably 3 to 30%.
- the coating ratio of the above oxide layer having a refractive index of less than 1.8 is from 5 to 80%, preferably from 10 to 60%.
- the metal oxide having a refractive index of more than 1.8 is Ti0 2 , SnO 2 , Fe 2 0 3 , Fe 3 0 4 , CoO, Co 2 O 3 , Zr0 2 , Cr 2 0 3 or a mixture or a composite thereof.
- the above oxide having a refractive index of less than 1.8 is Si0 2 , A1 2 0 3 , Al(OH) 3 , B 2 0 3 or a mixture thereof or a composite thereof.
- the invention also provides a method for producing the above color changing pigment, which method comprises the following steps in sequence:
- step (3) adjusting the pH of the step (2) suspension to 2-9, and then metering the solution of the soluble inorganic metal salt by 1-50% of the metal oxide layer to maintain a constant pH, when feeding After the completion, stir at a constant temperature for 10-30 minutes;
- step (3) filtering the suspension of step (3), washing with deionized water, drying, calcining, and sieving;
- hydrolyzate of the soluble inorganic metal salt has a metal oxide refractive index of more than 1.8, and the oxide of the hydrolyzate of the soluble inorganic salt has a refractive index of less than 1.8.
- the above soluble inorganic metal salt is selected from the group consisting of TiCl 4 , TiOCl 2 , SnCl 4 , SnCl 2 , FeCl 3 , FeCl 2 , CoCl 2 , ZrOCl 2 or CrCl 3 .
- the above soluble inorganic salt is selected from the group consisting of water glass, silicate, A1C1 3 , NaA10 2 or borax.
- the drying temperature in the above step (4) is 100 to 150 ° C, and the calcination temperature is 250 to 1000 ° C.
- the flop color multi-layer color-changing pigment of the present invention has the following advantages - the pigment of the present invention is made of a synthetic silicic acid 3 ⁇ 4 sheet as a substrate, which is convenient and inexpensive, compared to opaque metal foil or metal oxide, Synthetic silica and silicone liquid crystal sheets are substrates, which are much cheaper, which greatly reduces the price of pigments and broadens their application fields.
- the pigment of the invention is coated on the surface of the synthetic silicate plate with a certain thickness of high refractive index metal oxide, so that the active groups on the surface of the silicate plate are evenly distributed, and the optical properties are consistent, and then directly
- the low refractive index oxide layer is coated to a desired thickness, and other high refractive index metal oxides are coated to obtain an effect of exhibiting different interference colors depending on the viewing angle.
- the substrate of the pigment of the present invention is a synthetic silicate plate, and the synthetic silicate plate is a single-layer structure, and light is irradiated thereon, and the number of times of light refraction is much less than that of a pigment using mica as a substrate, and the reflection intensity is It is much larger, so the macroscopic performance of its color is much brighter and brighter than the pigment based on mica.
- the method of the present invention alternately coats the surface of the synthetic silicate sheet substrate by a wet chemical hydrolysis process.
- the refractive index oxide layer and the low refractive index oxide layer, the alternating coating may be multiple times, or may be one time, and is very flexible, so that a plurality of color tones and different color changing intervals can be prepared, and the color changing interval can be two colors. , three or more color changes until all color intervals are covered; the hydrolyzing process can control the coating of the coated metal oxide by controlling the amount of the inorganic salt solution added to control its optical The thickness is controlled to control the hue change of the pigment.
- the method of the present invention is easy to handle, easy to control product quality, and product quality is stable.
- due to the wet chemical hydrolysis coating process large-scale industrial production can be realized, and the product after hydrolysis reaction of the soluble inorganic metal compound has almost no environmental problems and is easy to handle.
- a pigment having a structure of Fe 2 O 3 / Si0 2 1 Fe 2 0 3 1 silicate flakes I Fe 2 0 3 1 Si0 2 1 Fe 2 0 3 is taken as a sample of 100 g and a thickness of 1-5 ⁇ m.
- a sodium calcium silicate silicate flake having a diameter of 30-150 microns was suspended in 1000 ml of deionized water, stirred and heated to 75 °C.
- the pH of the suspension was adjusted to 3.5 with 18% hydrochloric acid, followed by metering in 200 ml of 10% ferric chloride solution, during which the pH of the suspension was maintained by dropwise addition of 15% sodium hydroxide solution. Constant, after the addition was completed, the constant temperature was continued for 15 minutes.
- the pH of the suspension was adjusted to 9.5 with 32% sodium hydroxide solution and stirred for another 15 minutes.
- a 3 liter sodium silicate solution (13 g/liter of SiO 2 ) was metered in dropwise, and 15% hydrochloric acid was added dropwise thereto to make the pH constant. When the addition was completed, the mixture was stirred at a constant temperature for 30 minutes.
- the pH of the suspension was adjusted to 3.5 with 18% hydrochloric acid, stirred at a constant temperature for 30 minutes, and 70 ml of a ferric chloride solution having a concentration of 120 g/liter was added dropwise. During the addition, the pH of the suspension was passed. Add 15% sodium hydroxide to keep it constant. After the addition is completed, stir it for 15 minutes.
- the suspension was filtered, and the filtered product was washed with deionized water, dried at 120 ° C, calcined at 50 CTC, and passed through a 100 mesh sieve to obtain a product.
- the total oxide coverage of the resulting product is 35.9%, with the first layer of ferric oxide coating rate of 7.6%, the second layer of silica coverage of 25.7%, and the third layer of ferric oxide package.
- the coverage rate is 2.65%.
- Example 2 The obtained product was mixed with a colorless transparent nitrocellulose adhesive in a certain ratio, and then scraped on a scratched paper having a black and white base, which showed that the color value was from a purple-yellow-green color flow. Viewed from a vertical to a horizontal perspective.
- Example 2
- the pH of the suspension was adjusted to 3.5 with 18% hydrochloric acid, and then 300 ml of 10% ferric chloride solution was metered in. During this process, the pH of the suspension was maintained by dropwise addition of 15% sodium hydroxide solution. Constant, after the addition was completed, the constant temperature was continued for 15 minutes.
- the pH of the suspension was adjusted to 9.5 with 32% sodium hydroxide solution and stirred for another 15 minutes.
- a 4 liter sodium silicate solution (13 g/liter of SiO 2 ) was metered in dropwise, and 15% hydrochloric acid was added dropwise thereto to make the pH constant. When the addition was completed, the mixture was stirred at a constant temperature for 30 minutes.
- the pH of the suspension was adjusted to 3.5 with 18% hydrochloric acid, stirred at a constant temperature for 30 minutes, and 94 ml of a ferric chloride solution having a concentration of 120 g/liter was added dropwise. During the addition, the pH of the suspension was passed. Add 15% sodium hydroxide to keep it constant. After the addition is completed, stir it for 15 minutes.
- the suspension was filtered, and the filtered product was washed with deionized water, dried at 120 ° C, calcined at 500 ° C, and passed through a 200 mesh sieve to obtain a product.
- the total oxide coverage of the obtained product was 41.25%, wherein the first layer of ferric oxide coating ratio was 8.68%, the second layer of silica coating ratio was 30.55%, and the third layer of ferric oxide coating was coated.
- the rate is 2.04%.
- the obtained product was mixed with a colorless transparent nitrocellulose adhesive in a certain ratio, and then scraped on a scratched paper having a black and white base, which showed that the color value was from a purple-yellow-green color flow. Viewed from a vertical to a horizontal perspective.
- the coating of the above-mentioned high refractive index metal oxide and low refractive index metal oxide may be alternately repeated to form a different structure such as Fe 2 O 3 /Si0 2 /Fe 2 0 3 1 Si0 2 1 Fe 2 0 3 1 Si0 2 1 Fe 2 0 3 1 silicate sheet / Fe 2 0 3 1 Si0 2 I Fe 2 0 3 / Si0 2 1 Fe 2 0 3 1 Si0 2 I Fe 2 0 3 or ⁇ 0 2 1 Fe 2 0 3 1 Si0 2 1 Fe 2 0 3 / Ti0 2 1 silicate flakes / Ti0 2 / Fe 2 O 3 / Si0 2 / Fe 2 0 3 / Ti0 2; thereby preparing pigments of various color tones and different color-changing intervals.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/573,447 US20090090275A1 (en) | 2004-08-10 | 2005-06-09 | Pigment having angle dependence of the interference colors and the production processes thereof |
JP2007525148A JP5456252B2 (ja) | 2004-08-10 | 2005-06-09 | 角度によって色が異なる多層変色顔料及びその製造方法 |
ES05752501T ES2395131T3 (es) | 2004-08-10 | 2005-06-09 | Pigmento que posee una dependencia angular de los colores de interferencia y su proceso de producción |
AT05752501T ATE531768T1 (de) | 2004-08-10 | 2005-06-09 | Pigment mit winkelabhängigkeit der interferenzfarben und sein herstellungsverfahren |
EP05752501A EP1780245B1 (en) | 2004-08-10 | 2005-06-09 | Pigment having angle dependence of the interference colors and its production process |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200410051129.1A CN1266229C (zh) | 2004-08-10 | 2004-08-10 | 一种随角异色的多层变色颜料及其生产方法 |
CN200410051129.1 | 2004-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006015530A1 true WO2006015530A1 (fr) | 2006-02-16 |
Family
ID=34665951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2005/000828 WO2006015530A1 (fr) | 2004-08-10 | 2005-06-09 | Pigment ayant une dependance angulaire des couleurs d’interference et son procede de fabrication |
Country Status (8)
Country | Link |
---|---|
US (1) | US20090090275A1 (zh) |
EP (1) | EP1780245B1 (zh) |
JP (1) | JP5456252B2 (zh) |
KR (1) | KR20070054652A (zh) |
CN (1) | CN1266229C (zh) |
AT (1) | ATE531768T1 (zh) |
ES (1) | ES2395131T3 (zh) |
WO (1) | WO2006015530A1 (zh) |
Families Citing this family (23)
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EP3149089B1 (en) * | 2014-05-28 | 2019-10-02 | Basf Se | Effect pigments |
CN106833030A (zh) * | 2017-01-13 | 2017-06-13 | 爱乐彩(天津)新材料科技有限公司 | 一种超大粒径人工合成基材珠光颜料的制备方法 |
WO2018186838A1 (en) | 2017-04-04 | 2018-10-11 | Basf Corporation | Inorganic effect pigments |
CN110358327A (zh) * | 2019-07-25 | 2019-10-22 | 汕头市镇发珠光颜料有限公司 | 一种高纯度红色珠光效果颜料及其制备方法 |
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- 2005-06-09 KR KR1020077005537A patent/KR20070054652A/ko not_active Application Discontinuation
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- 2005-06-09 ES ES05752501T patent/ES2395131T3/es active Active
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Also Published As
Publication number | Publication date |
---|---|
KR20070054652A (ko) | 2007-05-29 |
JP5456252B2 (ja) | 2014-03-26 |
CN1597793A (zh) | 2005-03-23 |
ES2395131T3 (es) | 2013-02-08 |
EP1780245A4 (en) | 2010-08-04 |
EP1780245B1 (en) | 2011-11-02 |
ATE531768T1 (de) | 2011-11-15 |
JP2008509068A (ja) | 2008-03-27 |
US20090090275A1 (en) | 2009-04-09 |
EP1780245A1 (en) | 2007-05-02 |
CN1266229C (zh) | 2006-07-26 |
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