Applications of Aluminum Sol in the Papermaking Industry
Release date:
2026-04-04
Aluminum sol as a surface treatment agent to enhance paper performance
The primary approach is to incorporate aluminum sol as a functional coating component and apply it to the surface of paper. Its functions include:
Enhancing the Physical Properties of Paper : The thin film formed after aluminum sol is dried can effectively enhance the smoothness, brightness, and moisture resistance of paper. This results in a smoother paper surface, more uniform ink coverage during printing, and improved resistance to moisture-induced deformation.
As a binder In the production of coated papers, such as photographic paper, aluminum sol can serve as a surface-treatment binder, enhancing the adhesion of pigments and other functional particles to the paper substrate.
Endow with special functions ：
- As an ink absorber The porous structure and adsorption properties of nano-aluminum sol enable rapid absorption and fixation of ink, preventing ink bleeding and enhancing print clarity.
- For specialty paper : In high-temperature-resistant insulating paper for thermal batteries, the addition of aluminum sol as a reinforcing agent can significantly enhance the paper’s mechanical strength. Earlier studies have also reported that it can serve as a binder in the production of high-temperature insulating paper.
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