CN111763434A - Special coating pearlescent pigment and production method thereof - Google Patents
Special coating pearlescent pigment and production method thereof Download PDFInfo
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- CN111763434A CN111763434A CN202010653744.9A CN202010653744A CN111763434A CN 111763434 A CN111763434 A CN 111763434A CN 202010653744 A CN202010653744 A CN 202010653744A CN 111763434 A CN111763434 A CN 111763434A
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- 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
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- 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
- C09C3/003—Flushing
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- 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
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
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- 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
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
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- 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
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/043—Drying, calcination
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- 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
- C09C3/063—Coating
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- 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
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Abstract
The invention relates to the technical field of pearlescent pigments, and discloses a special coating pearlescent pigment and a production method thereof. According to the invention, the suspension is stirred to dissolve the hydrates of oxides such as titanium, iron and the like, so that the color and luster degree of the pearlescent pigment is improved, the drying box is utilized to fully dry the moisture in the pearlescent pigment, so that the stability of the pearlescent pigment is increased, the temperature of the suspension is heated once when the pearlescent pigment is prepared, then the constant-temperature digital display magnetic stirring device is utilized to stabilize the temperature of the suspension, the temperature of the suspension is kept unchanged all the time in the whole preparation step, the problem that the pearlescent pigment is failed to be prepared due to misoperation of temperature in the preparation process can be effectively avoided, and the purpose of convenient operation is achieved.
Description
Technical Field
The invention relates to the technical field of pearlescent pigments, in particular to a special coating pearlescent pigment and a production method thereof.
Background
The high-brightness material is used as a high-brightness material for improving the added value of a product, has a good using effect in the printing industry, can improve the brightness of the color of the product, and can also change the color generation effect. It exhibits a rainbow-like interference color, reflected and refracted on the flakes. The interference color is different according to the thickness of titanium dioxide or other metal oxides, has a deep, three-dimensional, silky feeling, and has an excellent multicolor effect. Pearlescent pigments are composed of mica coated with thin layers of several metal oxides. Different pearlescent effects can be produced by changing the metal oxide thin layer. Compared with other pigments, the pearlescent pigment has incomparable effect on the unique soft pearl luster. The special surface structure, high refractive index and good transparency make it create the same effect as pearl luster in a transparent medium. Pearlescent pigments are generally platelet-shaped and can be incorporated into printing inks of low viscosity with slight agitation and are therefore readily dispersed in the system by wetting.
At present, the existing pearlescent pigment needs to be heated for multiple times when being produced, the heat preservation temperature in the preparation process is different, errors are easy to occur in the operation, and the pearlescent pigment manufactured in the prior art is low in stability and low in color and luster degree.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the special coating pearlescent pigment and the production method thereof, which have the advantages of effectively reducing the heating times in the preparation process, obviously improving the color and luster degree and stability of the pearlescent pigment and the like, and solve some problems in the prior art.
(II) technical scheme
In order to effectively reduce the heating times in the preparation process and obviously improve the color and luster degree and the stability of the pearlescent pigment, the invention provides the special coating pearlescent pigment and the production method thereof, which comprise the following steps:
1) weighing 20 g of 10-60 mm-thick flaky base material, putting the flaky base material into a stirrer, measuring 35ml of TiO2 solution and 35ml of 160g/L iron oxide solution by using a measuring cylinder for later use, and preparing 80ml of suspension of the flaky base material in the stirrer by using deionized water.
2) And heating the obtained suspension to keep the temperature at 70-80 ℃, dropwise adding a TiO2 solution at a flow rate of 10ml/h after the temperature is stable, dropwise adding an iron hydroxide solution at a speed of 12ml/h, dropwise adding a buffer solution to stabilize the pH of the suspension at 2.2-2.8, and stirring the suspension for 30 minutes by using a stirrer.
3) To the suspension obtained in step 2) 0.4 g of phosphorous acid was added and stirring was carried out with the suspension until the phosphorous acid was completely dissolved, then 600 ml of an aqueous solution of AlCl3 was added and stirring was continued for 15 minutes, then the pH of the suspension was adjusted to 5.5 and the suspension was stirred continuously.
4) To the suspension obtained in step 3), 900 ml of an aqueous solution of NaSiO3 was added, and then stirring was continued for 20 minutes using a stirrer to obtain a slurry.
5) And filtering the coated pigment, taking out the pigment from the slurry, washing the pigment by soft water, and drying the pigment in a drying oven for 5 hours to obtain a finished product.
Preferably, the content of the TiO2 solution in the step 1) is 186g/L, the content of the iron oxide solution is 160g/L, and the content of the NaSiO3 solution in the step 4) is 136 g/L.
Preferably, the PH adjusting agents used in the steps 2) and 3) are sodium hydroxide solution and citric acid solution, respectively.
Preferably, the stirrer used in the step 1) is a Sedris 90-2A constant temperature digital display magnetic stirrer.
Preferably, the drying oven used in the step 5) is a Xinxifa 101-4B electrothermal blowing drying oven, and the drying temperature is 120 ℃.
(III) advantageous effects
Compared with the prior art, the invention provides a special coating pearlescent pigment and a production method thereof, and the special coating pearlescent pigment has the following beneficial effects:
according to the special coating pearlescent pigment and the production method thereof, the suspension is stirred to dissolve hydrates of oxides such as titanium, iron and the like, so that the color and luster degree of the pearlescent pigment is improved, the drying box is utilized to fully dry the moisture in the pearlescent pigment, so that the stability of the pearlescent pigment is improved, the temperature of the suspension is heated once when the pearlescent pigment is prepared, then the temperature of the suspension is stabilized by using a constant-temperature digital display magnetic stirring device, the temperature of the suspension is kept unchanged all the time in the whole preparation step, the failure of pearlescent pigment preparation caused by temperature misoperation in the preparation process can be effectively avoided, and the purpose of convenient operation is achieved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
firstly weighing 20 g of sheet-shaped base material with the thickness of 10-60 mm, putting the sheet-shaped base material into a stirrer, wherein the stirrer is a Sedris 90-2A constant-temperature digital display magnetic stirrer, weighing 35ml of TiO2 solution with the content of 186g/L and 35ml of iron oxide solution with the content of 160g/L by using a measuring cylinder for later use, preparing the sheet-shaped base material in the stirrer into 80ml of suspension by using deionized water, heating the suspension by using the constant-temperature digital display magnetic stirrer, keeping the temperature at 70-75 ℃, dropwise adding TiO2 solution at the flow rate of 10ml/h after the temperature is stable, dropwise adding iron hydroxide solution at the speed of 12ml/h, dropwise adding sodium hydroxide solution to stabilize the pH of the suspension at 2.2-2.8, stirring the suspension by using the stirrer for 30 minutes, then adding 0.4 g of phosphorous acid into the suspension, and stirring the suspension until the phosphorous acid is completely dissolved, then 600 ml of AlCl3 aqueous solution with the content of 125g/L is added, the stirring is continued for 15 minutes, then citric acid solution is added to adjust the pH of the suspension to 5.5, the suspension is continuously stirred, 900 ml of NaSiO3 aqueous solution with the content of 136g/L is added into the suspension, then the stirring is continued for 20 minutes by using a stirrer to obtain slurry, finally the coated pigment is taken out of the slurry by filtering, washed by soft water and dried for 5 hours in a drying oven to obtain the finished product.
Compared with the prior art, the first embodiment adopts the same stable temperature to keep the temperature of the suspension, can avoid the trouble caused by changing the temperature of the suspension, reduces the operation difficulty of an operator in preparing the pearlescent pigment, and makes the pearlescent pigment simpler and more convenient in the preparation process.
Example two:
firstly weighing 20 g of sheet-shaped base material with the thickness of 10-60 mm, putting the sheet-shaped base material into a stirrer, wherein the stirrer is a Sedris 90-2A constant-temperature digital display magnetic stirrer, weighing 35ml of TiO2 solution with the content of 186g/L and 35ml of iron oxide solution with the content of 160g/L by using a measuring cylinder for later use, preparing the sheet-shaped base material in the stirrer into 80ml of suspension by using deionized water, heating the suspension by using the constant-temperature digital display magnetic stirrer, keeping the temperature at 75-80 ℃, dropwise adding TiO2 solution at the flow rate of 10ml/h after the temperature is stable, dropwise adding iron hydroxide solution at the speed of 12ml/h, dropwise adding sodium hydroxide solution to stabilize the pH of the suspension at 2.2-2.8, stirring the suspension by using the stirrer for 30 minutes, then adding 0.4 g of phosphorous acid into the suspension, and stirring the suspension until the phosphorous acid is completely dissolved, then 600 ml of AlCl3 aqueous solution with the content of 125g/L is added, the mixture is continuously stirred for 15 minutes, then citric acid solution is added to adjust the pH of the suspension to 5.5, the suspension is continuously stirred, 900 ml of NaSiO3 aqueous solution with the content of 136g/L is added into the suspension, then the mixture is continuously stirred for 20 minutes by a stirrer to obtain slurry, finally the coated pigment is taken out of the slurry by filtration, washed by soft water and dried for 5 hours in a drying box to obtain a finished product
By comparing the first embodiment with the second embodiment, the heat preservation of the suspension in the preparation process can be controlled at 70-75 ℃ and 75-80 ℃ to effectively and stably disperse the hydrates of the oxides of titanium, iron and the like in the suspension, and the pearlescent pigment obtained after drying has no difference in color and luster and has good stability.
The invention has the beneficial effects that: the hydrate of oxides such as titanium, iron and the like is dissolved by stirring the suspension, so that the color and luster degree of the pearlescent pigment is improved, the moisture in the pearlescent pigment is fully dried by using the drying box, the stability of the pearlescent pigment is increased, the temperature of the suspension is heated only once when the pearlescent pigment is prepared, then the temperature of the suspension can be stabilized by using the constant-temperature digital display magnetic stirring device, the temperature of the suspension is kept unchanged all the time in the whole preparation step, the failure of preparing the pearlescent pigment due to misoperation of the temperature in the preparation process can be effectively avoided, and the purpose of convenient operation is achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A special coating pearlescent pigment and a production method thereof are characterized in that: the method comprises the following steps:
1) weighing 20 g of 10-60 mm-thick flaky base material, putting the flaky base material into a stirrer, measuring 35ml of TiO2 solution and 35ml of 160g/L iron oxide solution by using a measuring cylinder for later use, and preparing 80ml of suspension of the flaky base material in the stirrer by using deionized water.
2) And heating the obtained suspension to keep the temperature at 70-80 ℃, dropwise adding a TiO2 solution at a flow rate of 10ml/h after the temperature is stable, dropwise adding an iron hydroxide solution at a speed of 12ml/h, dropwise adding a buffer solution to stabilize the pH of the suspension at 2.2-2.8, and stirring the suspension for 30 minutes by using a stirrer.
3) To the suspension obtained in step 2) 0.4 g of phosphorous acid was added and the suspension was stirred until the phosphorous acid was completely dissolved, then 600 ml of an aqueous solution of AlCl3 was added and stirring was continued for 15 minutes, then the PH of the suspension was adjusted to 5.5 and the suspension was stirred continuously.
4) To the suspension obtained in step 3), 900 ml of an aqueous solution of NaSiO3 was added, and then stirring was continued for 20 minutes using a stirrer to obtain a slurry.
5) And filtering the coated pigment, taking out the pigment from the slurry, washing the pigment by soft water, and drying the pigment in a drying oven for 5 hours to obtain a finished product.
2. A specialty-coated pearlescent pigment and method of producing the same as claimed in claim 1 wherein: the content of the TiO2 solution in the step 1) is 186g/L, the content of the ferric oxide solution is 160g/L, and the content of the NaSiO3 solution in the step 4) is 136 g/L.
3. A specialty-coated pearlescent pigment and method of producing the same as claimed in claim 1 wherein: the pH adjusting reagents used in the steps 2) and 3) are sodium hydroxide solution and citric acid solution respectively.
4. A specialty-coated pearlescent pigment and method of producing the same as claimed in claim 1 wherein: the stirrer used in the step 1) is a Sedris 90-2A constant-temperature digital display magnetic stirrer.
5. A specialty-coated pearlescent pigment and method of producing the same as claimed in claim 1 wherein: the drying oven used in the step 5) is a Xinxifa 101-4B electrothermal blowing drying oven, and the drying temperature is 120 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010653744.9A CN111763434A (en) | 2020-07-08 | 2020-07-08 | Special coating pearlescent pigment and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010653744.9A CN111763434A (en) | 2020-07-08 | 2020-07-08 | Special coating pearlescent pigment and production method thereof |
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| CN111763434A true CN111763434A (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010653744.9A Pending CN111763434A (en) | 2020-07-08 | 2020-07-08 | Special coating pearlescent pigment and production method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0616964A (en) * | 1992-07-02 | 1994-01-25 | Merck Japan Kk | Pearlescent pigment having discoloration resistance and its production |
| CN1715341A (en) * | 2004-07-01 | 2006-01-04 | 温州泰珠集团有限公司 | Modified pearlite pigment and its preparing method |
| CN110272641A (en) * | 2019-06-03 | 2019-09-24 | 广东维诺珠光颜料有限公司 | The preparation method and pearlescent pigment of a kind of polymolecularity pearlescent pigment and application |
-
2020
- 2020-07-08 CN CN202010653744.9A patent/CN111763434A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0616964A (en) * | 1992-07-02 | 1994-01-25 | Merck Japan Kk | Pearlescent pigment having discoloration resistance and its production |
| CN1715341A (en) * | 2004-07-01 | 2006-01-04 | 温州泰珠集团有限公司 | Modified pearlite pigment and its preparing method |
| CN110272641A (en) * | 2019-06-03 | 2019-09-24 | 广东维诺珠光颜料有限公司 | The preparation method and pearlescent pigment of a kind of polymolecularity pearlescent pigment and application |
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| PB01 | Publication | ||
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 473000 Lihe Industrial Park, Wancheng District, Nanyang City, Henan Province Applicant after: LINGBAO PEARLESCENT PIGMENT Co.,Ltd. Address before: 473000 Lihe Industrial Park, Wancheng District, Zhengzhou City, Henan Province Applicant before: LINGBAO PEARLESCENT PIGMENT Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 473000 Lihe Industrial Park, Wancheng District, Nanyang City, Henan Province Applicant after: Henan Lingbao New Material Technology Co.,Ltd. Address before: 473000 Lihe Industrial Park, Wancheng District, Nanyang City, Henan Province Applicant before: LINGBAO PEARLESCENT PIGMENT Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20201013 |