Moisture control for paper coating
Paper coating is a method by which paper is coated with a specific compound or polymer (e.g. kaolin, calcium carbonate or bentonite) to impart desired characteristics to the paper to improve performance and printability. These properties include weight change, surface gloss, smoothness or reduced ink absorption.
These types of coated papers are mainly used in the packaging and publishing industries.
Not affected by controlled humidity
Cellulose fibers, the main component of paper, are hygroscopic by nature. While paper releases most of its moisture during the manufacturing process, it tends to regain moisture during packaging and storage, especially along the edges.
Various problems observed in coated paper due to moisture are:
Unevenness and curling
Limited paper
Sticky
Paper size increases/decreases as moisture content increases/decreases
Causes of uncontrolled humidity
Environmental conditions/production environment along with weather conditions play a major role in humid environments. Although weather conditions are unpredictable, a slight deviation in the environment; conditions can lead to high humidity.
industrial dehumidifier Solutions
parkoo dehumidifiers reduce the moisture content of the ambient air in manufacturing, packaging and storage areas to the desired level and help improve paper performance and printability.
