In the following paragraph of this article Tri gloss meter manufacturers will show you why you need to measure gloss and How to measure gloss.

Tri gloss meter manufacturers tell you that gloss is an aspect of visual perception, and when consumers consider a product, it is as important as the psychological impact of color on it.

Tri gloss meter manufacturers tell you that gloss is defined as the property of a surface that gives an object an approximate luminous or glossy, metallic appearance.

Tri gloss meter manufacturers tell you that manufacturers take the design of their products so that they have maximum appeals, such as highly reflective car panels, glossy magazine covers, or satin black designer furniture.

Tri gloss meter manufacturers tell you that gloss is important to a product, so the gloss should be consistent across each product or across batches.

How to measure gloss?

Tri gloss meter manufacturers tell you that gloss is measured by shining a certain amount of light on the surface of an object and then quantifying the amount of reflected light. 

The above information is the Tri gloss meter manufacturers' introduction and analysis of why to measure gloss and How to measure gloss, hope it helps you.