1) The dispersibility and coloring power of pigments should be good. When the pigment is unevenly dispersed, it will affect the appearance performance of the product; When the coloring power of the pigment is poor, it will increase the amount of pigment used and the material cost. The dispersibility and coloring power of the same color material are not the same in different resins, so this should be noted when selecting pigments. The particle size of pigments is also related to their dispersibility. The smaller the particle size of pigments, the better their dispersibility and coloring power.
2) Colorants cannot react with resins and various additives, and have strong solvent resistance, low migration, and good heat resistance. That is to say, color masterbatch cannot participate in various chemical reactions. Carbon black can control the curing reaction of polyester plastics, so carbon black material cannot be added to polyester. Due to the high temperature of plastic product molding and processing, colorants should not decompose or discolor under the molding heating temperature conditions. Inorganic pigments generally have good heat resistance, while organic pigments and dyes have poor heat resistance. This should be given sufficient attention when selecting pigment varieties.
3) Other properties of colorants should be understood, such as strict requirements for color masterbatch for plastic products used in food and children’s toys; Plastic products used in electrical appliances should choose pigments with good electrical insulation properties; For outdoor plastic products, colorants with good weather aging resistance should be selected.

Generally speaking, in the process of using different materials or products, products with bright colors will achieve better functionality. Among them, in the process of using more effective colorants, compared to the use of other colorants, more procedural implementation and actual processing will be carried out. So in the process of using different materials, it also ensures the application of modern technology, mainly by obtaining more functional processing and manufacturing processes. In the operation and production process of color mother factories, diverse usage trends of materials with different properties will be obtained to obtain actual permission and change processes.
In the practical application of different colorants, different color schemes are divided for the color of pigments, and more classification and functional processing are carried out for the color and glossiness of various pigments. Among them, in the process of obtaining more colorants and the process of product processing, the utilization of various materials is ensured to carry out the development trend of higher quality. However, in the implementation of different process oriented development trends, new process oriented control and development will still be achieved.
In different fields, there will be different materials and practical products. So in the process of various changes and developments in color masterbatch, practical processing and functional operation will be carried out. However, for this type of product, simple steps of processing and functional control processes are also carried out. In terms of the practicality of materials, better process control processes are carried out in various regions or industries.

1. The local surface tension of foam decreases, causing the foam to burst
The origin of this mechanism is that alcohol or vegetable oil is sprinkled on the foam. When it is dissolved into the foam liquid, the surface tension will be significantly reduced. Because the solubility of these substances to water is generally small, the surface tension is reduced to the part of the foam, while the surface tension around the foam is almost unchanged. The part with reduced surface tension strongly pulls and extends in all directions, and then ruptures.
2. Defoamers can break the elasticity of the membrane and cause bubbles to burst
When defoamer is added to the foam system, it will diffuse to the gas-liquid interface, making it difficult for the surfactant with foam stabilizing effect to recover the membrane elasticity.
3. Defoamers can promote the drainage of liquid film, resulting in the bursting of bubbles
The discharge rate of foam can reflect the stability of foam. Adding a substance to accelerate the discharge of foam can also play a role in defoaming.
4. Adding hydrophobic solid particles can cause bubbles to burst foam everywhere in our lives. foam will greatly limit the production capacity and cause waste of many raw materials. Many companies choose to use defoamers for defoaming.
(1) The local surface tension of foam decreases, causing the foam to burst
The origin of this mechanism is that alcohol or vegetable oil is sprinkled on the foam. When it is dissolved into the foam liquid, the surface tension will be significantly reduced. Because the solubility of these substances to water is generally small, the surface tension is reduced to the part of the foam, while the surface tension around the foam is almost unchanged. The part with reduced surface tension strongly pulls and extends in all directions Later ruptured.
(2) Defoamers can break the elasticity of the membrane and cause bubbles to burst
When defoamer is added to the foam system, it will diffuse to the gas-liquid interface, making it difficult for the surfactant with foam stabilizing effect to recover the membrane elasticity.
(3) Defoamers can promote the drainage of liquid film, resulting in the bursting of bubbles
The discharge rate of foam can reflect the stability of foam. Adding a substance to accelerate the discharge of foam can also play a role in defoaming.
(4) Adding hydrophobic solid particles can cause bubble bursting
Hydrophobic solid particles on the surface of bubbles will attract the hydrophobic end of surfactants, causing the hydrophobic particles to become hydrophilic and enter the water phase, thereby playing a role in defoaming.
(5) Solubilizing and foaming surfactants can cause bubble burst
Some low molecular weight substances that can be fully mixed with the solution can solubilize the surface active agents of bubbles and reduce their effective concentration. Low molecular substances with this effect, such as octanol, ethanol, propanol and other alcohols, can not only reduce the surfactant concentration in the surface layer, but also dissolve into the surfactant adsorption layer, reducing the compactness of surfactant molecules, thus weakening the stability of foam.
(6) Electrolytes disintegrate the double layer of surfactants, leading to the bursting of bubbles
For the surfactant double electric layer interaction with foam to produce a stable foaming solution, the double electric layer of the surfactant can be disintegrated by adding ordinary electrolyte to defoamer.
Hydrophobic solid particles on the surface of bubbles will attract the hydrophobic end of surfactants, causing

Hydrophobic solid particles on the surface of bubbles will attract the hydrophobic end of surfactants, causing the hydrophobic particles to become hydrophilic and enter the water phase, thereby playing a role in defoaming.
5. Solubilizing and foaming surfactants can cause bubble burst
Some low molecular weight substances that can be fully mixed with the solution can solubilize the surface active agents of bubbles and reduce their effective concentration. Low molecular substances with this effect, such as octanol, ethanol, propanol and other alcohols, can not only reduce the surfactant concentration in the surface layer, but also dissolve into the surfactant adsorption layer, reducing the compactness of surfactant molecules, thus weakening the stability of foam.
6. Electrolytes disintegrate the double layer of surfactants, leading to the bursting of bubbles
For the surfactant double electric layer interaction with foam to produce a stable foaming solution, the double electric layer of the surfactant can be disintegrated by adding ordinary electrolyte to defoamer.