Heidelberger Druckmaschinen Ag

Heidelberg Harris S.a.

Pierre Hoynant

Alain Blanchard

Heiner Pitz

Philippe Herda

Herve Henry

Dominique Boillot

Robert Gaultier

Bernard Ganneval

Emmanuel Lebeuf

Daniel Calvez

A method for drying printing ink containing an inactive active substance enclosed before drying in a reaction-inhibited form in a transport substance, for accelerating the drying of the printing ink on a print medium, includes applying the printing ink to a print medium being dried at a reaction site by supplying energy to the printing ink, and releasing the active substance by an energy supply from the transport substance at the reaction site for activation. A printing ink includes an active substance enclosed before drying in a reaction-inhibited form in a transport substance, for accelerating the drying of the printing ink on a print medium. The active substance is releasable during the drying by an energy supply from the transport substance at the reaction site.

Method for drying printing ink and printing ink

A method of producing folds on signatures separated from a material web stream, including a multilayer material web stream, includes the method steps of disposing two cutting and perforating devices, respectively, in a web travel direction; cutting the material web stream in the region of a first longitudinal fold by a first cutting device assigned to the fold; perforating/cutting the material web stream in the region of a crossfold forming material bridges; and providing that at least one of the cutting or perforating tools is adjustable in relation to the material web stream. The invention also includes a device for performing the method; and a folder, and more specifically, a pinless folder having the device.

Method and device for perforating material webs

An apparatus for the transport and slowing of folding copies in a folding machine. The folding copies are transported by belt groups, and the copies are removed from a surface of the copy-guiding cylinder by the belt groups. At least two belt groups are provided for transporting the folding copies. A belt group preceding a longitudinal-folding device is driven by a drive that is independent of the folding machine drive.

Apparatus for the slowing of copies

A method for detecting disruptions in the transport of a web in a rotary printing press. A speed evaluation is performed on the web and then analyzed, including a comparison of a contactless measurement of the instantaneous speed (VPAP(t)) of the web with a speed selected from the group of speeds of the web consisting of: 1. a virtual speed (VVIRT(t) which is evaluated from the mechanical speed of the press, 2. an average speed (VAVE(t)) measured during a time before the last measurement, and 3. a speed (VPAP (t.sub.k-1)) measured at the moment immediately before the moment when an instantaneous speed (VPAP(t.sub.k)) is measured. The analysis is performed to obtain a respective speed difference, and to compare the respective speed difference with a respective prescribed threshold value. If the speed difference is not within the threshold value, a signal is generated which indicates that the web is not traveling at the proper speed.

Method for detecting disruptions in the transport of a paper web in a

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Neuilly Sous Clermont, France

Pierre Hoynant