Process for manufacturing booklets
AssigneeFerag AG
InventorWerner Honegger
Life of this patent
Estimating the term…
Abstract
For manufacturing printed products such as books or booklets consisting of a stack of paper sheets adhesively joined together and folded along a middle line, a plurality of paper webs are brought together to form a stack of paper layers moving continuously. Into the continuously moving stack a liquid binder is injected along equidistant lines perpendicular to the moving direction of the stack. After binder injection, two,additional webs are brought together with the stack to cover the stack on both sides. Then the stack is cut midway between each pair of junction lines to form individual stacks and the individual stacks are folded along the junction line.
Claims10
A method for producing printed products consisting of a stack of sheets adhesively joined and folded along a middle line from a plurality of continuously moving paper webs with the steps of
- continuously moving a plurality of webs together to form a stack with two main, outer surfaces continuously moving in a first, longitudinal direction,
- adhesively joining the paper webs of the continuously moving stack along equidistant junction lines perpendicular to the first direction of the stack by injecting a liquid binder into said stack from at least one of the main surfaces of the stack along said junction lines and wetting all layers of the stack with the insected binder,
- bringing two additional webs together with the continuously moving stack such that they cover the main surfaces of the stack,
- cutting the continuously moving stack midway between each pair of said equidistant junction lines to form individual stacks, and
- folding each individual stack along said junction line.
Dependencies are inferred from the claim text.