Zinc Sulfide Application in Optical Coating Materials
 Jul 22, 2024|View:202


The high-purity zinc sulfide S-30 from Yunfu Hongzhi New Material Co., Ltd. is a white functional material. It has a refractive index of 2.37, high thermal conductivity, a Mohs hardness of 3.0, and excellent dispersibility. It is not corroded in the pH range of 4-12 and is insoluble in water and solvents. Due to its low Mohs hardness, it can provide wear resistance. With high purity and no trace elements, it can be widely used in various types of fluorescent materials, coating materials, plastics, rubber, paints, inks, and paper.

Zinc Sulfide

Zinc Sulfide

1、Zinc sulfide is an excellent infrared optical material and is an indispensable raw material for manufacturing infrared imaging devices. It can be used to manufacture infrared imaging devices with high infrared transmittance and excellent optical uniformity, thereby obtaining high-resolution, high-definition infrared imaging with minimal image distortion. Zinc sulfide can be used in the military to manufacture infrared windows and visors.

Zinc Sulfide

2、Zinc sulfide is used for optical coatings, manufacturing anti-counterfeiting labels for laser coatings, mainly for anti-counterfeiting labels on currency, ID cards, and passports; and anti-counterfeiting marks on cigarette, alcohol, and pharmaceutical outer packaging.

Zinc Sulfide

A thin layer of zinc sulfide is coated on the surface, forming a zinc sulfide coating. Due to the high refractive index of zinc sulfide, the plastic film surface exhibits a metallic luster. This zinc sulfide coating not only has a metallic luster, but also can produce a strong, bright, and colorful light pattern effect under light irradiation, significantly enhancing the grade of printed products. For example, in the application of high-end printed products with paper-plastic composites, the zinc sulfide coating can be used after printing to create a high-end integrated holographic color-printed paperboard packaging, such as cigarette boxes, daily chemical product packaging, food packaging, and gift boxes. These packages exhibit a strong, bright, and colorful light pattern effect under light irradiation, enhancing the appeal and competitiveness of the products.

Zinc Sulfide

Zinc sulfide coatings have an angle-dependent color effect. Under the condition of changing the incidence angle, the light changes with the angle, causing a shift in the reflection spectrum, resulting in a color change effect with the change of the observation angle.

3、Zinc sulfide is also used to manufacture luminescent powders, mainly used for emergency evacuation signs, highway signs, and other luminescent signs.

Zinc Sulfide

If you are interested in the zinc sulfide products of Yunfu Hongzhi New Material Co., Ltd., please feel free to contact us.