The surface treatment of printing paper directly affects the ink absorption speed, diffusion rate, and final print quality. Different types of paper exhibit significant differences in performance.

1. Smoother Surface, Less Ink Diffusion
Coated paper (such as photo paper or inkjet paper) has a smoother surface and an ink-absorbing layer, effectively controlling ink diffusion and resulting in sharper image edges and richer colors.

2. Ink-absorbing Layer Determines Drying Speed
High-quality paper typically has a specialized ink-absorbing coating that quickly absorbs and fixes ink, reducing smudging and ghosting, while improving printing efficiency.

3. Surface Roughness Affects Clarity
Ordinary copy paper has a relatively rough surface, allowing ink to diffuse easily. It's suitable for text printing, but results in lower clarity for images or high-resolution output.

4. Uneven Coating Leads to Unstable Printing
Uneven paper surface treatment can cause localized areas of excessive or insufficient ink absorption, leading to inconsistent colors or spots.

Proper surface treatment effectively improves ink absorption and print quality.

ACO paper achieves more uniform ink absorption through optimized coating processes and surface smoothness control, helping users obtain clearer and more stable printing results.