High Color Density Pearl Pigment – TC427 Cobalt Blue Pearlescent Powder for Inks, Coatings, and Paints

I. Core Technical Characteristics (with Key Parameters)

1. Optical Performance: Dual Enhancement of Pearlescence and Color

• Pearlescent Effect: The layered structure of the substrate causes light to reflect, refract, and interfere, presenting a soft pearlescent luster (glossiness: 80-120 GU, tested at 60° angle) with a "color-shifting effect" as the viewing angle changes (some high-end products can achieve tri-color shifting).
• Color Performance: Through precise matching of colorants and coating layers, full-spectrum coverage (red, yellow, blue, green, purple, etc.) is achievable. It is divided into "solid-color pearlescent pigments" (high color saturation and strong hiding power) and "transparent pearlescent pigments" (transparent color, suitable for overcoating).
• Particle Size Adaptability: Particle size ranges from 5-150μm, with different particle sizes corresponding to different gloss effects:
  • Small particle size (5-20μm): Fine silk-like luster, suitable for films and printing;
  • Medium particle size (20-60μm): Moderate pearlescence, suitable for plastics and coatings;
  • Large particle size (60-150μm): Strong metallic luster, suitable for automotive coating and building materials.

2. Physical and Chemical Properties: Stable, Reliable, and Compatible with Multiple Processes

• Weather Resistance: Inorganic coating layers (e.g., titanium dioxide, iron oxides) are UV-resistant and temperature-resistant (-40℃~200℃), with an outdoor service life of 5-8 years (complying with ISO 105-A02 standard).
• Chemical Resistance: Resistant to acids and alkalis (pH 3-11) and solvents (ethanol, acetone, toluene, etc.), it does not react with resins or plastic substrates, making it suitable for high-demand industrial environments.
• Environmental Friendliness: Free of heavy metals (lead, cadmium, mercury, etc.), it meets RoHS and REACH environmental standards and can be used in food-contact packaging (food-grade certified products are required).
• Dispersibility: Modified by surface treatment (e.g., silane coupling agent coating), it disperses uniformly in coatings, plastics, and inks without agglomeration, ensuring good construction fluidity.

3. Functional Extension: Both Decorative and Practical Value

• Hiding Power: Solid-color pearlescent pigments have a hiding power of 10-15 g/m² (saving 30% of dosage compared to ordinary pigments), reducing the impact of substrate background color on the final effect.
• Scratch Resistance: The inorganic coating layer has high hardness (Mohs hardness 5-6), and its addition can improve the surface wear resistance of products, suitable for automotive interiors, electronic casings, and other scenarios.