Gluing — Sticking With Direct Mail

A potential drawback of extrusion machines is that they can only apply remoist glue in parallel lines. This means that glue laid down in the shape of a "U" either needs two passes or two machines running in-line at right angles to each other.

In-line Application
At Rickard Bindery, most of the remoist glue jobs are done in-line with other binding processes. For example, operators may apply remoist glue, stop-perforate the sheet, apply seam glue to form a pocket, fold it (barrel folds, accordions and gatefolds), apply wafer seals, slit it and keep the job in mail-sort order—all in-line.