What is the relationship between gram weight and thickness of white cardboard?

The gram weight of white cardboard is closely related to the thickness, in general, the greater the gram weight, the greater the thickness.

The specific relationship is as follows:

First, the influence of gram weight on thickness

Gram weight refers to the weight per square meter of white cardboard, usually in grams per square meter (g/m²). The larger the gram weight, the more fiber contained in the unit area of white cardboard, the thicker the paper.

Different grams of white cardboard have obvious differences in thickness. For example, the thickness of the common 200 grams of white cardboard is about 0.25 mm, while the thickness of 300 grams of white cardboard may be about 0.35 mm, and the thickness of 400 grams of white cardboard may reach about 0.5 mm.

Second, the influence of thickness on gram weight

Thickness refers to the thickness of the white cardboard, usually in millimeters (mm). The increase in thickness is usually due to a tighter packing of fibers in the paper or an increase in the thickness of the fibers themselves.

When the thickness of white cardboard increases, its gram weight will also increase accordingly. This is because the increase in thickness means that the volume of paper per unit area increases, and the weight of the paper is mainly determined by the weight of the fiber, so the gram weight will also increase.

Third, relationship considerations in practical applications

In the packaging design, it is necessary to choose the appropriate weight and thickness of white cardboard according to different product requirements. If the packaging needs higher strength and stiffness, you can choose a larger gram weight, thicker white cardboard; If the pursuit of light and simple design, you can choose a small weight, thin thickness of white cardboard.

In the printing industry, gram weight and thickness also affect the printing effect. Thicker white cardboard can provide better printing flatness and color saturation, but may increase printing costs and processing difficulties. The thinner white cardboard may require some special treatment measures during the printing process to ensure the printing quality.

In short, the gram weight and thickness of white cardboard are two important parameters related to each other, and the relationship between them and the actual application needs need to be considered comprehensively when selecting and using white cardboard.