In the packaging and printing industry, gray board paper and white board paper are two common paper materials that are suitable for different scenarios due to their different characteristics. The following are the core differences between the two:

1. Raw materials and structure

Grey board paper:

Made from waste paper pulp as the main raw material, through multiple layers of pressing, the interior is gray, the surface is rough and uncoated. It has a tight structure, high hardness, but relatively poor toughness.

Whiteboard paper:

Made from bleached wood pulp or bamboo pulp, with a white coating on the surface, smooth and even, and may be gray or white inside. The stiffness of whiteboard paper is good, and the colors on both sides are consistent (single-sided whiteboard paper is only white on the front).

2. Appearance and printing effect

Grey board paper:

The color is dark and not suitable for direct printing of complex patterns. It is mostly used for scenes such as inner linings and book covers that do not require high aesthetic standards.

Whiteboard paper:

The white surface has strong ink absorption and can present bright colors and high-definition graphics and text. It is commonly used in high-end printed products such as cosmetics boxes and electronic product packaging.

3. Physical properties

Grey board paper:

Strong compressive strength, low cost, but prone to moisture deformation, suitable for short-term use or packaging with high load-bearing requirements.

Whiteboard paper:

Better durability and moisture resistance, less prone to yellowing after long-term storage, suitable for products with high durability requirements.

4. Application scenarios

Grey board paper:

Book binding, folder, low-end gift box lining.

Whiteboard paper:

High end gift boxes, food packaging, label printing and other fields that require exquisite appearance.

Summary: Grey board paper focuses on economic practicality, while white board paper emphasizes aesthetics and printing quality. When making a choice, it is necessary to consider the cost, purpose, and visual effects comprehensively.