First Curtain Coater Used in Carton Board Machine

Voith Paper, Germany, reports that it has received the first order for a curtain coater used for graphic paper coating in a board machine, from a major producer of high-quality carton board grades. This innovative process is thus used for the first time for coat applications beyond the field of specialty papers where the curtain coater has been successfully used for years to apply thermo-reactive or capsule coatings. In this rebuild project, the existing air knife coater is replaced with a curtain coater, allowing the mill to overcome its current speed limit and to substantially increase the coating solids content. In this particular case, the coat drying energy costs will almost be halved, Voith notes, adding that, in addition, curtain coating ensures optimal coverage, permitting the use of more cost-effective coating pigments.

TAPPI
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