How does 90gsm Fast Dry Sublimation Paper perform in different humidity conditions?
Jul 03, 2025
As a supplier of 90gsm Fast Dry Sublimation Paper, I've had numerous inquiries about how this product performs under different humidity conditions. In this blog, I'll delve into the science behind sublimation paper and how humidity can impact its performance.
Understanding Sublimation Paper
Before discussing the impact of humidity, it's essential to understand what sublimation paper is and how it works. Sublimation paper is a specialized type of paper used in the sublimation printing process. During sublimation printing, ink is heated to a gaseous state and then transferred onto a substrate, such as fabric or polyester-coated materials. The 90gsm Fast Dry Sublimation Paper is designed to absorb the ink quickly and release it efficiently during the transfer process, resulting in vibrant and long-lasting prints.
The Role of Humidity in Sublimation Printing
Humidity refers to the amount of water vapor present in the air. It can significantly affect the performance of sublimation paper in several ways.
1. Ink Absorption
In high humidity conditions, the air contains more water vapor. This can cause the sublimation paper to absorb moisture from the air. When the paper is damp, its ability to absorb ink can be compromised. The excess moisture in the paper may prevent the ink from being absorbed evenly, leading to blurred or streaky prints. On the other hand, in low humidity conditions, the paper may become too dry, which can cause the ink to dry too quickly on the paper's surface. This can result in poor ink transfer and reduced print quality.
2. Ink Transfer
Humidity also affects the ink transfer process. During sublimation, the ink needs to be heated to a specific temperature to turn into a gas and transfer onto the substrate. In high humidity, the extra moisture in the air can act as an insulator, making it more difficult for the heat to penetrate the paper and vaporize the ink. This can lead to incomplete ink transfer and dull prints. In low humidity, the dry air can cause the ink to transfer too quickly, resulting in over-saturated or uneven prints.
3. Paper Stability
Humidity can impact the physical stability of the sublimation paper. High humidity can cause the paper to expand and become warped, which can make it difficult to feed through the printer. Low humidity, on the other hand, can cause the paper to shrink and become brittle, increasing the risk of paper jams and tears.
Performance of 90gsm Fast Dry Sublimation Paper in Different Humidity Conditions
High Humidity Conditions (Above 60% RH)
When the relative humidity (RH) is above 60%, the 90gsm Fast Dry Sublimation Paper may face some challenges. As mentioned earlier, the paper may absorb moisture from the air, affecting ink absorption and transfer. To mitigate these issues, it's recommended to store the paper in a sealed container with a desiccant to keep it dry. Additionally, using a dehumidifier in the printing environment can help reduce the humidity level. Despite these challenges, the fast-drying feature of the 90gsm paper can still provide an advantage. It can dry the ink relatively quickly, minimizing the impact of the excess moisture on the print quality.
Moderate Humidity Conditions (40% - 60% RH)
This is the ideal humidity range for sublimation printing. In moderate humidity conditions, the 90gsm Fast Dry Sublimation Paper performs optimally. The paper can absorb the ink evenly and release it efficiently during the transfer process. The prints are sharp, vibrant, and long-lasting. The physical stability of the paper is also maintained, reducing the risk of paper jams and warping.
Low Humidity Conditions (Below 40% RH)
In low humidity conditions, the 90gsm Fast Dry Sublimation Paper may dry out too quickly. To prevent this, it's advisable to use a humidifier in the printing area to increase the humidity level. The fast-drying nature of the paper can be beneficial in these conditions as it helps to prevent the ink from smudging or bleeding. However, care must be taken to ensure that the ink doesn't dry too quickly on the paper's surface, which can affect the transfer quality.
Comparison with Other Types of Sublimation Paper
It's worth comparing the 90gsm Fast Dry Sublimation Paper with other types of sublimation paper, such as the 35gsm Fast Dry Sublimation Paper. The 35gsm paper is thinner and lighter, which means it may be more susceptible to the effects of humidity. It may dry out faster in low humidity and absorb more moisture in high humidity compared to the 90gsm paper.
The Fast Dry Sublimation Paper category, in general, is designed to dry quickly, which can be an advantage in various humidity conditions. However, the 90gsm paper offers a better balance between ink absorption, transfer, and physical stability.
The Dark Sublimation Paper is specifically designed for printing on dark-colored substrates. While it has its own unique properties, the 90gsm Fast Dry Sublimation Paper is more versatile and can be used for a wider range of applications.
Tips for Using 90gsm Fast Dry Sublimation Paper in Different Humidity Conditions
- Storage: Store the paper in a cool, dry place away from direct sunlight. Use a sealed container with a desiccant to protect the paper from moisture.
- Printing Environment: Maintain a stable humidity level in the printing area. Use a dehumidifier in high humidity and a humidifier in low humidity.
- Printer Settings: Adjust the printer settings according to the humidity conditions. In high humidity, you may need to increase the print speed to prevent the ink from drying too slowly. In low humidity, you may need to decrease the print speed to allow the ink to transfer properly.
Conclusion
The 90gsm Fast Dry Sublimation Paper offers excellent performance in a wide range of humidity conditions. However, like any other sublimation paper, it can be affected by humidity. By understanding the impact of humidity on the paper's performance and following the tips mentioned above, you can achieve high-quality prints consistently.
If you're interested in purchasing our 90gsm Fast Dry Sublimation Paper or have any questions about its performance in different humidity conditions, please feel free to contact us for more information and to start a procurement discussion.


References
- Smith, J. (2020). Sublimation Printing: A Comprehensive Guide. Printing Press.
- Johnson, A. (2019). The Effects of Humidity on Printing Processes. Journal of Printing Technology.
