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Main performance requirements for pigments used in plastic masterbatches

Main performance requirements for pigments used in plastic masterbatches

Summary Description:1. Coloring power
The coloring power of a pigment refers to the amount of pigment required for a certain color product, expressed as a percentage of the coloring power of a standard sample. The coloring power of a pigment is not only related to its properties, but also to its degree of dispersion. The degree of dispersion mainly refers to the degree of refinement of the pigment. The greater the degree of dispersion, the stronger its coloring power, but it has a saturation value.
2. Heat resistance
Heat resistance refers to the degree of change in the color or performance of pigments under processing and usage temperatures. When considering the heat resistance of pigments, it is also important to consider their heating time. Due to the different processing methods and heating times of plastics when processed into products, and the different uses and heating times during use, the higher the temperature used, the shorter the heat resistance time.
3. Migration resistance
The migration resistance of pigments refers to that the colored plastics may have physical and chemical reactions with the above substances when they are in long-term contact with other solid, liquid, gas and other substances or when they work in a specific environment, which is manifested by the migration of pigments from the inside of plastics to the Free surface of products, or to the adjacent plastics or solvents.
4. Light resistance and weather resistance
Plastic products require good light and weather resistance due to long-term outdoor use. Some pigments undergo varying degrees of color changes under light exposure. Weathering resistance refers to the color stability of pigments under natural conditions. Due to its extensive outdoor use, the black mother pays special attention to migration resistance and weather resistance.

Main performance requirements for pigments used in plastic masterbatches

Summary Description:1. Coloring power
The coloring power of a pigment refers to the amount of pigment required for a certain color product, expressed as a percentage of the coloring power of a standard sample. The coloring power of a pigment is not only related to its properties, but also to its degree of dispersion. The degree of dispersion mainly refers to the degree of refinement of the pigment. The greater the degree of dispersion, the stronger its coloring power, but it has a saturation value.
2. Heat resistance
Heat resistance refers to the degree of change in the color or performance of pigments under processing and usage temperatures. When considering the heat resistance of pigments, it is also important to consider their heating time. Due to the different processing methods and heating times of plastics when processed into products, and the different uses and heating times during use, the higher the temperature used, the shorter the heat resistance time.
3. Migration resistance
The migration resistance of pigments refers to that the colored plastics may have physical and chemical reactions with the above substances when they are in long-term contact with other solid, liquid, gas and other substances or when they work in a specific environment, which is manifested by the migration of pigments from the inside of plastics to the Free surface of products, or to the adjacent plastics or solvents.
4. Light resistance and weather resistance
Plastic products require good light and weather resistance due to long-term outdoor use. Some pigments undergo varying degrees of color changes under light exposure. Weathering resistance refers to the color stability of pigments under natural conditions. Due to its extensive outdoor use, the black mother pays special attention to migration resistance and weather resistance.

details

1. Coloring power
The coloring power of a pigment refers to the amount of pigment required for a certain color product, expressed as a percentage of the coloring power of a standard sample. The coloring power of a pigment is not only related to its properties, but also to its degree of dispersion. The degree of dispersion mainly refers to the degree of refinement of the pigment. The greater the degree of dispersion, the stronger its coloring power, but it has a saturation value.
2. Heat resistance
Heat resistance refers to the degree of change in the color or performance of pigments under processing and usage temperatures. When considering the heat resistance of pigments, it is also important to consider their heating time. Due to the different processing methods and heating times of plastics when processed into products, and the different uses and heating times during use, the higher the temperature used, the shorter the heat resistance time.
3. Migration resistance
The migration resistance of pigments refers to that the colored plastics may have physical and chemical reactions with the above substances when they are in long-term contact with other solid, liquid, gas and other substances or when they work in a specific environment, which is manifested by the migration of pigments from the inside of plastics to the Free surface of products, or to the adjacent plastics or solvents.
4. Light resistance and weather resistance
Plastic products require good light and weather resistance due to long-term outdoor use. Some pigments undergo varying degrees of color changes under light exposure. Weathering resistance refers to the color stability of pigments under natural conditions. Due to its extensive outdoor use, the black mother pays special attention to migration resistance and weather resistance.

上一个: Main components and composition of color masterbatch
下一个: What is color masterbatch? Why use color masterbatch?
上一个: Main components and composition of color masterbatch
下一个: What is color masterbatch? Why use color masterbatch?

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Polypropylene has many excellent properties: 1. The relative density is small, only 0.89-0.91, making it one of the lighter varieties in plastic. 2. Good mechanical properties, except for impact resistance, all other mechanical properties are better than polyethylene, and the molding and processing performance is good. 3. It has high heat resistance and can be continuously used at temperatures ranging from 110 to 120 ℃. 4. Good chemical properties, almost no water absorption, and does not react with the vast majority of chemicals. 5. Pure texture and toxicity. 6. Good electrical insulation. 7. The transparency of polypropylene products is better than that of high-density polyethylene products. It has many advantages but also disadvantages: 1. The product has poor cold resistance and low low-temperature impact strength. 2. Products are prone to aging due to the effects of light, heat, and oxygen during use. 3. Poor colorability. 4. Easy to burn. 5. Poor toughness, high static electricity, poor dyeing, printing, and adhesion.
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28
2023-06

Main components and composition of color masterbatch

TIme：2023-06--28
Color masterbatch is composed of an excess of chemical additives, carrier resins, and dispersants. Color masterbatch is an aggregate obtained by uniformly attaching super constant pigments (dyes) to a resin. Main components of color masterbatch 1. Colorants Colorants are the main components of the color master batch. The colorants used in color masterbatches such as polyolefins and PVC are pigments, and various pigments with different properties are selected according to their different uses. The color masterbatch for engineering plastics can use solvent dyes, some advanced organic pigments, and some high-temperature resistant infinite pigments. Generally speaking, dyes should not be used for coloring polyolefins as they may cause severe migration. Pigments can be divided into organic pigments and inorganic pigments. Commonly used organic pigments include phthalocyanine red, phthalocyanine blue, phthalocyanine green, light fast red, macromolecular red, macromolecular yellow, permanent yellow, permanent purple, azo red, etc. Commonly used inorganic pigments include cadmium red, cadmium yellow, titanium dioxide, carbon black, iron oxide red, iron oxide yellow, etc
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28
2023-06

Main performance requirements for pigments used in plastic masterbatches

TIme：2023-06--28
1. Coloring power The coloring power of a pigment refers to the amount of pigment required for a certain color product, expressed as a percentage of the coloring power of a standard sample. The coloring power of a pigment is not only related to its properties, but also to its degree of dispersion. The degree of dispersion mainly refers to the degree of refinement of the pigment. The greater the degree of dispersion, the stronger its coloring power, but it has a saturation value. 2. Heat resistance Heat resistance refers to the degree of change in the color or performance of pigments under processing and usage temperatures. When considering the heat resistance of pigments, it is also important to consider their heating time. Due to the different processing methods and heating times of plastics when processed into products, and the different uses and heating times during use, the higher the temperature used, the shorter the heat resistance time. 3. Migration resistance The migration resistance of pigments refers to that the colored plastics may have physical and chemical reactions with the above substances when they are in long-term contact with other solid, liquid, gas and other substances or when they work in a specific environment, which is manifested by the migration of pigments from the inside of plastics to the Free surface of products, or to the adjacent plastics or solvents. 4. Light resistance and weather resistance Plastic products require good light and weather resistance due to long-term outdoor use. Some pigments undergo varying degrees of color changes under light exposure. Weathering resistance refers to the color stability of pigments under natural conditions. Due to its extensive outdoor use, the black mother pays special attention to migration resistance and weather resistance.
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daima

发布时间：2023-06-29 10:08:38

The company covers an area of more than 20 mu, with a modern production plant of 15,000 square meters, a variety of production, testing equipment and instruments nearly 150 sets (sets), close to the Yangtze River, Beijing-Hangzhou Grand Canal, Beijing-Shanghai, Ningtong, Yangli highway, traffic is very convenient.

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