Golden Lustre Pearlescent Pigment Wholesale

How to choose the right dispersant to ensure that the gold luster pearlescent pigment is well dispersed in the printing ink?
Choosing the right dispersant is the key to ensure that the gold luster pearlescent pigment is well dispersed in the printing ink. Here are some considerations and selection methods:
Understand the chemical properties of the pigment: Different types of gold luster pearlescent pigments may have different needs for dispersants. For example, some pigments may be more sensitive to specific types of dispersants, so you need to understand the chemical properties and surface characteristics of the pigment first.
Hydrophilic dispersant: If the pigment surface is hydrophilic, you usually need to choose a hydrophilic dispersant to help the pigment disperse evenly in water or water-based base.
Oleophilic dispersant: For pigments used in oily bases, you may need to choose an oleophilic dispersant.
Universal dispersant: Some dispersants have a wide range of applicability and are suitable for a variety of types of pigments and bases.
Dispersibility: The dispersant should be able to effectively reduce the attraction between particles and prevent particles from agglomerating and settling.
Stability: The dispersant should also be able to maintain its effect throughout the service life of the printing ink to avoid precipitation or deterioration of the pigment.
Compatibility with ink base: When selecting a dispersant, it must be ensured that it is compatible with the printing ink base and will not affect the performance and stability of the ink. It is best to conduct experiments to verify the compatibility of the dispersant and the ink base.
Application method and process requirements: Considering the specific printing process and application requirements, the amount and addition time of the dispersant are selected to ensure that the pigment can be evenly dispersed during the production process.
Environmental and health and safety considerations: Ensuring that the selected dispersant meets the relevant environmental and health and safety standards is especially important when it comes to cosmetics or food packaging printing.

How to ensure the dispersibility and stability of golden luster pearlescent pigments in printing inks?
When using golden luster pearlescent pigments in printing inks, it is crucial to ensure their good dispersibility and stability, which directly affects the quality and performance of printing inks. The following are several key factors and methods to ensure dispersibility and stability:
Pigment selection and preparation: Select the appropriate pigment type and particle size distribution: According to the characteristics and process requirements of the printing ink, select the appropriate type of golden luster pearlescent pigment (such as aluminum, metal oxide, etc.) and the appropriate particle size distribution. Finer particles are generally easier to disperse and can produce a more uniform gloss effect.
Surface treatment: Pigment surface treatment (such as modification) can improve its compatibility and dispersibility with the ink base material and reduce agglomeration and precipitation between particles.
Function of dispersant: The use of appropriate dispersants can help the pigment to be quickly and evenly dispersed in the ink base material. Dispersants can enhance the interaction between the pigment and the base material and prevent particle agglomeration and sedimentation.
Optimize the amount and addition time of dispersants: The optimal amount and addition time of dispersants need to be determined experimentally to ensure that the pigment can be fully dispersed during the ink preparation process.
Proper stirring and mixing conditions: During the mixing of pigments and ink bases, ensure that appropriate stirring equipment and conditions, such as speed and time, are used to ensure that the pigments can be evenly dispersed throughout the ink base.
Experimentation and quality control: Systematic experimentation and quality control during the production process are key to ensuring dispersion and stability. Regular pigment dispersion testing and stability assessment can help identify and resolve potential problems and optimize the production process.
Management of storage and transportation conditions: Managing the storage and transportation conditions of pigments and ink bases to avoid moisture or heat, as well as prolonged shock or vibration, helps maintain the dispersion and stability of the pigments.