CN114773639A - White food-grade color master batch and production process thereof - Google Patents
White food-grade color master batch and production process thereof Download PDFInfo
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- CN114773639A CN114773639A CN202210387349.XA CN202210387349A CN114773639A CN 114773639 A CN114773639 A CN 114773639A CN 202210387349 A CN202210387349 A CN 202210387349A CN 114773639 A CN114773639 A CN 114773639A
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- Prior art keywords
- master batch
- ethanol solution
- white
- color master
- auxiliary agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/223—Packed additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2400/00—Characterised by the use of unspecified polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a white food-grade color master batch and a production process thereof, and the production process comprises the following steps; 1; preparing an ethanol solution, mixing ethanol and purified water in a sealed environment, and preparing an ethanol solution 2 containing pentaethanol; adding an auxiliary agent which does not exceed ten percent of the mass of the ethanol solution into the ethanol solution for emulsification and dispersion to form an emulsion; the auxiliary agent is one of titanate coupling agent and silane coupling agent; 3; adding titanium dioxide powder into the emulsion, mixing and stirring at the temperature of 60-70 ℃ under the standard atmospheric pressure of 0.8, and standing for 2 hours after stirring; 4; filtering the mixture after standing, washing with purified water, drying the washed mixture, and grinding with a grinder to obtain modified titanium dioxide powder; 5; the ground mixture is mixed with resin and a dispersing agent and granulated, and the invention has the effects of modifying the components in the color master batch, thereby improving the affinity of titanium white and resin and having high stability of the color master batch.
Description
Technical Field
The invention relates to the field of color master batches, in particular to a white food-grade color master batch and a production process thereof.
Background
The color master batch, also called a color seed, is a special colorant for a novel high polymer material, also called a pigment preparation, and is mainly used for plastics. Color concentrates are composed of three basic elements, a pigment or dye, a carrier and additives, and are aggregates prepared by uniformly supporting an excess amount of pigment in a resin, and can be referred to as pigment concentrates so that they have a higher tinctorial strength than the pigment itself. During processing, a small amount of color master batch is mixed with uncolored resin, and colored resin or products with designed pigment concentration can be obtained.
Titanium dioxide, known by the chemical name titanium dioxide, is the most widely used white pigment in the form of a white powdery solid. Because the titanium dioxide has unique physical and chemical properties and excellent coloring performance, the titanium dioxide is widely used as an inorganic pigment in color master batches; however, titanium dioxide has the defect of being a strong polar substance and difficult to disperse in some media, so that the application of the titanium dioxide is greatly limited. During the production and storage process, the fine pigment particles tend to agglomerate, produce large particles, and affect the quality of the product, so that they cannot be used directly and must be dispersed. Only after sufficient dispersion can the most efficient and economical use be achieved. The pigment dispersion process can be divided into three steps: wetting, refining and stabilizing after refining. Pigment surface treatment is a stabilization process after pigment refinement, and is a process for depositing or coating monomolecular or multimolecular substances on the surface of pigment particles, wherein the monomolecular or multimolecular substances comprise surfactants, modifiers, derivatives of the pigment, and the like. The coupling agent is an important treating agent with increasingly wide application fields and is mainly used as an auxiliary agent of a high-molecular composite material. The coupling agent has the greatest characteristic that molecules contain two groups with different chemical properties, one group is an inotropic group and is easy to chemically react with the surface of an inorganic substance; the other is an organophilic group which is capable of chemically reacting with or forming hydrogen bonds soluble in synthetic resins or other polymers. Therefore, the coupling agent is called a molecular bridge and is used for improving the interface action between an inorganic substance and an organic substance, so that the properties of the material, such as physical properties, electrical properties, thermal properties, optical properties and the like, are greatly improved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the white food-grade color master batch and the production process thereof, which have the effects of modifying the components in the color master batch, thereby improving the affinity of titanium white and resin and having high color master batch stability.
In order to achieve the purpose, the invention provides the following technical scheme: a production process of white food-grade color master batch is characterized by comprising the following steps: comprises the following steps;
step 1; preparing an ethanol solution, mixing ethanol with purified water in a sealed environment, and preparing the ethanol solution containing pentaethanol;
step 2; adding an auxiliary agent which does not exceed ten percent of the mass of the ethanol solution into the ethanol solution for emulsification and dispersion to form an emulsion; the auxiliary agent is one of titanate coupling agent and silane coupling agent;
step 3; adding titanium dioxide powder into the emulsion, mixing and stirring at the temperature of 60-70 ℃ under the standard atmospheric pressure of 0.8, and standing for 2 hours after stirring;
step 4; filtering the mixture after standing, washing with purified water, drying the mixture after washing, and grinding with a grinder to obtain modified titanium dioxide powder;
step 5; and mixing the ground mixture with resin and a dispersing agent, and granulating.
The invention is further configured to: a white food-grade color master batch is characterized in that: comprises the following components in percentage by weight; 69-75% of titanium white, 22-27% of resin and 1-6% of auxiliary agent; wherein, the auxiliary agent is one of titanate coupling agent and silane coupling agent.
The invention is further configured to: the titanium white is preferably 72%, the resin is preferably 25%, and the auxiliary agent is preferably 3%; the titanium white is modified titanium white.
In conclusion, the invention has the following beneficial effects: the production process of the white food-grade color master batch can modify titanium white, the modified titanium white has good lipophilicity, and the dispersibility and whiteness of the prepared color master batch are improved.
Detailed Description
The present invention will be described in further detail below.
The embodiment discloses a white food-grade color master batch and a production process thereof, which has the effects of modifying the components in the color master batch, thereby improving the affinity of titanium white and resin and having high color master batch stability.
Comprises the following steps;
step 1; preparing an ethanol solution, mixing ethanol with purified water in a sealed environment, and preparing the ethanol solution containing pentaethanol;
step 2; adding an auxiliary agent which does not exceed ten percent of the mass of the ethanol solution into the ethanol solution for emulsification and dispersion to form an emulsion; the auxiliary agent is one of titanate coupling agent and silane coupling agent;
step 3; adding titanium dioxide powder into the emulsion, mixing and stirring at 60-70 ℃ under the standard atmospheric pressure of 0.8, and standing for 2 hours after stirring;
step 4; filtering the mixture after standing, washing with purified water, drying the mixture after washing, and grinding with a grinder to obtain modified titanium dioxide powder;
step 5; and mixing the ground mixture with resin and a dispersing agent, and granulating.
A white food-grade color master batch is characterized in that: comprises the following components in percentage by weight; 69-75% of titanium white, 22-27% of resin and 1-6% of auxiliary agent; wherein the auxiliary agent is one of titanate coupling agent and silane coupling agent.
The titanium white is preferably 72%, the resin is preferably 25%, and the auxiliary agent is preferably 3%; the titanium white is the modified titanium white prepared in the step 4.
The arrangement of the modified titanium dioxide can increase the dispersibility and whiteness of the color master batch.
In conclusion, the invention has the following beneficial effects: the production process of the white food-grade color master batch can modify titanium white, the modified titanium white has good lipophilicity, and the dispersibility and whiteness of the prepared color master batch are improved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A production process of white food-grade color master batch is characterized by comprising the following steps: comprises the following steps;
step 1; preparing an ethanol solution, mixing ethanol with purified water under sealed environment, and preparing into an ethanol solution containing pentaethanol;
step 2; adding an auxiliary agent which does not exceed ten percent of the mass of the ethanol solution into the ethanol solution for emulsification and dispersion to form an emulsion; the auxiliary agent is one of titanate coupling agent and silane coupling agent;
step 3; adding titanium dioxide powder into the emulsion, mixing and stirring at 60-70 ℃ under the standard atmospheric pressure of 0.8, and standing for 2 hours after stirring;
step 4; filtering the mixture after standing, washing with purified water, drying the washed mixture, and grinding with a grinder to obtain modified titanium dioxide powder;
step 5; and mixing the ground mixture with resin and a dispersing agent, and granulating.
2. A white food-grade color master batch is characterized in that: comprises the following components in percentage by weight; 69-75% of titanium white, 22-27% of resin and 1-6% of auxiliary agent; wherein the auxiliary agent is one of titanate coupling agent and silane coupling agent.
3. The white food grade color masterbatch according to claim 2, characterized in that: the titanium white is preferably 72%, the resin is preferably 25%, and the auxiliary agent is preferably 3%; the titanium white is modified titanium white.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210387349.XA CN114773639A (en) | 2022-04-13 | 2022-04-13 | White food-grade color master batch and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210387349.XA CN114773639A (en) | 2022-04-13 | 2022-04-13 | White food-grade color master batch and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114773639A true CN114773639A (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210387349.XA Pending CN114773639A (en) | 2022-04-13 | 2022-04-13 | White food-grade color master batch and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114773639A (en) |
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2022
- 2022-04-13 CN CN202210387349.XA patent/CN114773639A/en active Pending
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