Blade, film, and curtain coating techniques and their influence on paper surface characteristics
Source abstract
Abstract
Curtain coating is a promising high-precision coating technique with a wide variety of possible applications. It has been used in the production of specialty papers since the 1990s and is now being introduced for the production of graphic paper and board grades. This study compares the curtain coating technique with the more traditional blade and film coating techniques with regard to the surface characteristics of the coated paper. A 38-g/m2 lightweight coated (LWC) base paper was pilot-coated using the three different coating techniques. The coated papers were studied using a combination of novel and traditional surface characterization methods with respect to a number of paper properties, including optical properties, roughness, coat weight distribution, and compression uniformity. We found that curtain coating gave the most uniform coat weight, but at the same time the roughest surface. Because of the gentle application of the coating onto the base paper, the bulk was well preserved, and the paper was more compressible than both the blade- and film-coated papers.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Material Properties and Processing
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References (19)
Show source-provided references
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