Cotton grading is an important part of cotton quality evaluation. However, in the process of cotton grading, the unstable light source environment can easily lead to deviations in grading results. In order to unify the light source environment for cotton grading, there are regulations on the light source for cotton grading. So, what light source is used for cotton grading? This article introduces the light source and lamp models for cotton grading.

When the paint on the car surface ages, peels off or is damaged, the car needs to be repainted. In the process of repainting, the influence of various factors can easily lead to inconsistent colors after paint application. In order to detect the consistency of the color of car paint, a multi-angle colorimeter can be used. This article introduces the method of measuring the color difference of car paint with a multi-angle colorimeter.

Inkjet digital photo paper is mainly used as the raw material for inkjet printing. Glossiness is an important indicator of the quality of inkjet digital photo paper, which directly determines the quality of printed products. So, what are the requirements for the glossiness of inkjet digital photo paper? How to measure it? This article introduces the requirements and measurement methods for the glossiness of inkjet digital photo paper.

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.