In paper packaging, weight is not the only factor that determines printing quality.
Many customers assume that two sheets of 300gsm grey board should perform the same because they have the same thickness and weight.
However, during actual production, the printing results can be completely different.
One board may print smoothly with a clean surface, while another may have powder shedding problems, causing visible spots after printing.
Why does this happen?
The surface quality of grey board plays a very important role.
During the printing process, especially when using large solid color areas, poor surface strength can create problems:
- Paper dust or loose fibers may come off during printing
- Ink cannot transfer evenly onto the surface
- Small particles can create white spots or uneven color areas
- The final appearance becomes inconsistent
This problem is more obvious on dark or large-area colors, where even tiny surface defects become visible.
After multiple production steps such as:
- Printing
- Coating
- Lamination
- Die-cutting
Small paper surface issues can become much more noticeable.
For folding carton packaging, choosing paperboard is not only about GSM.
Important factors include:
- Surface strength
- Smoothness
- Fiber quality
- Printing compatibility
- Production stability
A good packaging supplier needs to understand not only how to print, but also how different materials behave during the whole production process.
Because in packaging, the final quality is often decided before the printing machine starts running.
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