For many sulfur-free paper manufacturers, a common issue is the wrinkling and deformation of sulfur-free paper, which is also a frequently complained about problem by customers. However, in many cases, the wrinkles in sulfur-free paper are not caused by the quality of the paper itself. They are more often due to external factors. Today, let the wholesale sulfuric acid paper manufacturer delve into the reasons behind the wrinkling of sulfur-free paper.

The primary cause of deformation in sulfur-free paper is the moisture content within the paper. Sulfur-free paper is composed of plant fibers, which makes it highly hygroscopic, meaning it has a strong tendency to dehydrate and absorb moisture. Whether it's dehydration or absorption, both processes can lead to warping and creasing of sulfur-free paper sheets. This is why moisture content is a crucial factor in assessing the quality of sulfur-free paper.
When the moisture content of sulfur-free paper and kraft paper changes, the paper fibers will expand or contract due to absorption and dehydration. As water is absorbed or dehydrated, the hydrogen bonds also alter their binding strength, causing the sulfur-free paper to deform.
Sulfur-free paper has a strong absorbency, and is prone to absorbing moisture and water when improperly packaged or stored. When subjected to moisture absorption and dehydration, sulfur-free paper tends to become brittle and curl. Therefore, it is essential to control the humidity in the storage facility when storing sulfur-free paper.

Moisture levels vary across different regions, so anti-humidity measures should be tailored to local climate conditions. How should anti-humidity measures be taken for sulfur-free paper?
For manufacturers of sulfuric acid paper wholesale, they should pay attention to three aspects: storage, storage, and delivery.
The sulfur-free paper produced should be promptly transferred to the warehouse for storage and should not be left outdoors, as this may result in unnecessary losses.
During storage, control the air humidity, close the doors and windows, and fold the trays when placing them to prevent the paper tubes from coming into direct contact with the ground.
During transportation, it is crucial to strictly inspect the condition of the kraft paper in bulk to prevent sending defective products to clients. Therefore, moisture prevention is of utmost importance.