There are two main types of sizing machine processes: internal sizing (involving the addition of sizing agents to the pulp before formation) and surface sizing (where agents are applied after the sheet has formed). These sizing machines treat sheets of paper in batches rather than inline. They are often used for specialty papers or smaller production runs where flexibility and quality are paramount.

 

Sizing machines contribute to a smoother surface finish, which can enhance user experience and improve the quality of printed materials. Sizing machine makes paper more resistant to water and other liquids, which is important for products like labels, food packaging, and any applications where moisture resistance is essential. Depending on the sizing agent used, the opacity of the paper can be adjusted, allowing manufacturers to cater to specific customer needs.

 

By improving printability, strength, moisture resistance, and surface smoothness, sizing machines contribute significantly to meeting the diverse demands of the paper market.
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