New Color Nail Powder Pigment Manfuacturer

What effect will long-term direct sunlight have on new colored pearlescent pigments during storage?
The effect of long-term direct sunlight on new colored pearlescent pigments is mainly reflected in the light resistance, color stability, chemical stability and physical properties of the pigments. The following is a detailed analysis of these effects:
Light resistance refers to the ability of the pigment to maintain color and gloss under sunlight. Long-term direct sunlight can accelerate the breaking of chemical bonds in the pigment, resulting in changes in the molecular structure of the pigment, thereby affecting its light resistance. The metal oxide coating in the pearlescent pigment may undergo photochemical degradation under the action of ultraviolet rays, affecting the gloss and color of the pigment.
The color stability of pearlescent pigments refers to the ability to maintain color unchanged under different lighting conditions. Long-term direct sunlight may cause photochemical changes in certain components of the pigment, such as oxidation or reduction reactions, which may change the color of the pigment and cause color drift or fading.
The chemical stability of pearlescent pigments refers to the ability to maintain the chemical structure unchanged under the action of environmental factors. Long-term direct sunlight may accelerate the chemical reactions of certain components in the pigment, such as oxidation and hydrolysis, which may cause changes in the chemical structure of the pigment and affect its performance.
The physical properties of pearlescent pigments include dispersibility, adhesion, hardness, etc. Long-term direct sunlight may affect the physical properties of the pigment. For example, pigment particles may aggregate due to thermal stress, affecting their dispersibility in the substrate; or the pigment coating may crack due to thermal expansion, affecting its adhesion and hardness.
In addition to direct sunlight, environmental factors such as humidity, temperature, oxygen, etc. will also work together with sunlight to affect the performance of pearlescent pigments. For example, a high humidity environment may accelerate the moisture absorption and hydrolysis reaction of the pigment, while a high temperature environment may accelerate the thermal degradation of the pigment.
The light resistance, color stability and chemical stability of the pigment are also affected by its formula and preparation process. High-quality pearlescent pigments usually use special coating materials and processes to improve their light resistance and stability. For example, using more stable metal oxides as coatings or using finer mica flakes can improve the light resistance and color stability of the pigment.
The application environment of pearlescent pigments will also affect their performance under direct sunlight. For example, in outdoor applications, pigments need to have higher light resistance and stability to resist long-term sunlight exposure and erosion by environmental factors. In indoor applications, the light resistance requirements of pigments may be relatively low.

What factors affect the chemical stability of new colored pearlescent pigments?
The chemical stability of new colored pearlescent pigments is affected by a variety of factors, which may include but are not limited to:
High temperatures may accelerate chemical reactions, causing chemical bonds in the pigment to break or reorganize. High humidity environments may promote hydrolysis reactions, affecting the stability of the pigment. The presence of oxygen may promote oxidation reactions, affecting the chemical structure of the pigment.
Prolonged exposure to direct sunlight, especially ultraviolet light, may cause photochemical degradation in the pigment, resulting in color changes or performance degradation.
The chemical stability of the mica substrate, metal oxide coating, and other additives in the pearlescent pigment will affect the performance of the final product. Different metal oxide coatings have different effects on chemical stability.
Acidic or alkaline environments may have a negative impact on the chemical stability of the pigment, especially for those pigment components that are sensitive to pH.
During production and application, the pigment may be subjected to mechanical stress, such as friction, pressure, etc., which may affect the chemical structure and stability of the pigment.
Certain solvents and chemicals may react with the pigment, resulting in a decrease in the chemical stability of the pigment.
Storage conditions, such as temperature, humidity, light, and contacting substances, will have an impact on the chemical stability of the pigment.
The preparation process, including coating thickness, uniformity and post-processing steps, will affect the chemical stability of the pigment.