Brochures, books and magazines thicker than 2 mm are bound using a thermal glue. This improves the look of the brochures.
To glue a block, EVA thermal glues are most frequently used.
A few years ago, PUR glues used in furniture production were introduced to book-binding. Its high level of strength is considered a large advantage, but very few tools that can apply it in a thin enough layer to retain this advantage.
The top glue producers in the world acknowledged this problem and developed a new generation of EVA glue, which has very similar characteristics to PUR glue but does not require complex and temperamental equipment.
In our printing house, we use these new-generation glues, which provide a high level of strength.
Brochures and books can also be sewn with thread before to gluing. This gives additional strength to the block and is appropriate if thick paper is used for the inner pages. If thin paper is used, brochures are not usually sewn.