Characteristics of Calendered Paper

High surface smoothness: After calendering treatment, the fibers on the surface of the paper are compacted, and the uneven parts are smoothed out. The smoothness of soft calendered paper is usually higher than 300 seconds (10 ml), and that of super calendered paper can reach 400-1000 seconds.

Good gloss: The calendering process enables the surface of the paper to better reflect light, thus achieving a high gloss. For instance, the 60° gloss value of super calendered paper is usually required to be no less than 70, presenting a bright visual effect.

High whiteness: Calendering treatment can improve the whiteness of paper to a certain extent. The whiteness of soft calendered paper usually reaches or exceeds 65% of the ISO standard, which can make the colors of printed matter more vivid and bright.

High paper density: During the calendering process, the paper fibers are compressed, increasing the paper's density. The density is generally no less than 0.9 grams per cubic centimeter, making the paper more compact and enhancing its strength.