| 摘要 |
A method for improving the sizing of paper internally wherein a ketene dimer is used as sizing agent, characterized by blending said ketene dimer before it is added to the paper stock, said ketene dimer being melted or in hot aqueous dispersion, with a hydrophobe compound, melted or in hot aqueous dispersion respectively, the melting point of said hydrophobe compound being higher than the melting point of the ketene dimer and the ketene dimer being blended with said hydrophobe compound in a ratio of from about 1 to 99 parts by weight of ketene dimer to about 100 parts of hydrophobe compound.
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