The surface sizing agent paper or cardboard in the process of a process, usually located in the end of the paper machine drying, the sheet
Not completely dry but has a certain strength to spray a layer of glue layer film formed by the subsequent drying in paper and paperboard surface, so as to achieve the purpose of change of paper or paperboard surface properties. From the development of paper industry, paper surface sizing is one of the essential process of surface sizing agent can be added to improve the performance of the sheet or increase in the surface of paper or paperboard, water resistance additives. Originally, due to the technical level and the limitations of the paper request, surface sizing can only be used on special paper, such as: the banknote paper, bond paper, sea drawings and other. With the technological level of the paper industry, the paper surface sizing agent has become a conventional paper-handling processes, especially in recent years due to printing, photocopying, fax, universal cultural paper, wrapping paper and corrugated surface, strength and The water resistance of a higher demand, the paper industry in the constant quest for new surface sizing agent techniques.
Read more：http://www.chemical-chem.com/Papermaking-chemicals/Surface-Sizing-Agent/
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