In paper mills, automated sizing machines for paper industry are typically used in the latter stages of paper production, after the pulp has been formed into sheets and dried. Surface sizing machines apply sizing agents directly onto the surface of the paper. This helps to improve the paper’s surface strength and porosity, thereby enhancing its printability and reducing ink absorption.

 

Internal sizing machines, on the other hand, introduce sizing agents into the paper pulp during the paper making process. This internal sizing process ensures that the sizing agent is distributed evenly throughout the paper, providing a uniform level of water resistivity and smoothness. Internal sizing can be achieved through the addition of sizing chemicals, such as rosin or alkyl ketene dimers, to the pulp slurry before it is formed into sheets.

 

As the demand for specialized papers continues to grow, the use of sizing machines in paper mills will remain essential for meeting the diverse needs of customers worldwide. Welcome to contact me for more details!
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