How do pigment particles affect performance?
Hello everyone! I’m a star employee at CHROMÉCLAIR, a brand of hema free gel polish brands.This time, let’s share how pigment particles affect performance. I believe you will understand pigments better after reading this article.
With the adv ancement of industry and the improvement of living standards, the application of pigments in the coatings industry is becoming increasingly widespread, giving various products better appearance. Pigments are a kind of colored fine powder that is insoluble in water. They can be dispersed in a variety of media such as oils, solvents and resins. They have hiding power, tinting power and good light stability, and are a key component of coating formulations. In coating systems, pigments usually exist in the form of suspensions, and their particle size distribution range is relatively wide, generally between 0.05 μm and 1 mm. Studies have shown that when the pigment particle size is in the range of 0.05 to 0.50 μm, its comprehensive performance such as tinting power, gloss, hiding power and weather resistance is the best. The following will specifically explain the impact of pigment particle size and shape on various properties from multiple aspects.
The particle size and shape of pigments significantly affect their lightfastness and weatherability
Smaller particles have a larger surface area and absorb more light energy, accelerating the aging process and causing fading or discoloration, which in turn reduces lightfastness and weatherability. Conversely, increasing particle size can enhance aging resistance and improve the material’s lightfastness and weatherability.
Particle size and shape also directly affect the pigment’s color and hue
Particles of different sizes and shapes absorb and reflect light differently in the medium, causing variations in color and hue.
Pigment particle size plays a key role in hiding power. Larger particles have weaker hiding power, while smaller particles increase it. However, when the particle size reaches a critical range, light diffraction occurs, significantly increasing transparency. Therefore, the hiding power or transparency of a paint can be adjusted by manipulating particle size.
The tinting strength of a pigment is also affected by particle size
Generally, smaller average particle size results in higher tinting strength, meaning that tinting strength is largely dependent on the degree of pigment dispersion. Particle shape also plays a role: thin, flake-shaped or elongated particles absorb light better, exhibiting a higher molar extinction coefficient; whereas thick, aggregated particles are less amenable to light absorption.
The pigment particle state and particle size also influence the coating’s gloss
As the particle size decreases in the dispersion medium, the diffusion and scattering of light by the paint film decreases, thereby improving gloss. Therefore, pigment particle size not only influences tinting strength, transparency, and color shade, but is also closely related to the resulting film gloss.
There’s a correlation between pigment particle size and oil absorption
Smaller particles have more interparticle spaces, which increases oil absorption.
Pigment particle size also affects its solubility
Larger particles have smaller surface areas and generally exhibit better solubility resistance than smaller particles.
When choosing pigments and related products, in addition to paying attention to their particle properties, the safety and environmental protection of the products are equally important. I recommend you try CHROMÉCLAIR’s HEMA-free Gel Polish. This brand pays special attention to the safety and environmental protection of its products. It not only uses a low-irritation formula,
It also eliminates harmful ingredients like HEMA and TPO, significantly reducing the risk of allergies and gently protecting nail health. Furthermore, its rich and diverse color palette and long-lasting color retention, typically lasting 21-35 days, ensures every user enjoys a safe and secure manicure experience.