Haze is an important indicator for the quality inspection of matte film products, which determines the optical performance of matte film materials. However, different industries have different requirements for the haze of matte films, so it is necessary to test the haze of matte films. This article introduces the requirements and test methods for the haze of matte films.

When measuring color, the colorimeter is based on the most widely used CIELab color space, and the color is expressed as Lab values. So, how do you understand the Lab value of a colorimeter? What is the standard for determining the Lab value of a colorimeter? This article introduces the meaning of the Lab value of a colorimeter and the standard for determining the Lab value.

As a tool for color quantification, the colorimeter uses the internationally accepted CIELab color space when measuring color, and digitally expresses the color in three dimensions: L, a, and b. This article introduces the range of the colorimeter Lab value and the meaning of the Lab color difference value.

Color difference is an important parameter for color science quantification. It refers to the distance between different colors in a specific color space. It can be generally understood as the difference in color. It can be measured by a colorimeter and calculated using a specific color difference formula. So, what symbol is used to represent color difference? What are the calculation formulas for color difference? This article introduces them.

D65 light source and TL84 light source are two commonly used color matching light sources in standard light boxes. They are both white light sources in nature , of which D65 light source is a standard white light source, while TL84 light source is a typical warm white light source. So, what is the difference between D65 light source and TL84 light source? The following is an introduction.

For facing stones, glossiness is an important physical property, which reflects the glossiness of facing stones and affects their decorative effects. Therefore, measuring the glossiness of facing stones is an important means to control product appearance quality and enhance product competitiveness. So, how to measure the glossiness of facing stones? How to use a 45° angle gloss meter?