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A new generation of engineers

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Printing processes : Offset Lithography - 4FMT1093

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  • Number of hours

    • Lectures : 10.5
    • Tutorials : 1.5
    • Laboratory works : 2.0
    • Projects : 0
    • Internship : 0
    • Written tests : 1.5
    ECTS : 25.0
  • Officials : Bernard PINEAUX

Goals

Learning outcomes :

  • Master the operation of the offset process and in particular the interactions between the various phenomena involved;
  • Know the materials and consumables (fountain solution, plates, blankets) associated with this process (excluding inks);
  • Know the characteristics and operation of the different types of offset presses (sheet-fed, web-fed);
  • Recognize printing defects related to these presses and develop the method for diagnosing them (observation, use of tools, interpretation);
  • Optimize the use of the offset process.
Contact Bernard PINEAUX

Content

POUR L’ACCÈS AUX DOCUMENTS SUPPORTS, VOIR LE LIEN VERS LE SITE INTERNET CHAMILO DANS LA RUBRIQUE "BIBLIOGRAPHIE"/ FOR ACCESS TO SUPPORT DOCUMENTS, SEE THE LINK TOWARD THE "CHAMILO" WEBSITE IN THE "BIBLIOGRAPHY" HEADING

A-Principles of the offset lithographic process : dampening, inking, transfer.
B-Materials and consumables used : dampening solution, plates, blankets
C-Offset lithographic presses
D-Characteristic defects of offset lithographic presses.

Three sessions of applied work complete this course on the SHeetfed Offset Training Simulator (SHOTS)and teach students how to diagnose printing problems in offset lithography. The exercises deal with production situations where problems appear progressively.
The first session is supervised by the teacher, in order to learn the diagnosis methodology.
The following sessions put students in production situations where problems appear progressively. The second session is also supervised by the teacher (in order to avoid any risk of being stuck in a given situation). The third session is led by students in autonomy but requires that students install a portable computer in a room with a beamer and giving access to the network (the software being accessible via the networkà.
Availability of the software (especially the allowed number of simultaneous connections) or schedule constraints may change the sessions organization.
A 1-hour plenary session enables to synthesize the difficulties faced during the work in autonomy .



Prerequisites
  • Basics of printed communication engineering (densitometry).
  • Understanding English (course taught in English).

Tests

The course is taught in English.

A joint evaluation is proposed for the offset printing, flexography and digital processes courses.
Can be made up in case of a justified absence.

Grading of the practical work : the methodology used by each group of students to solve problems during their self training on the simulator is taken into account.
The exercises on the simulator will be corrected in a plenary session.

The practical work on the simulator can be made up in case of a justified absence if access to the simulator on the "cloud" remains possible.



La note de TP tient compte de la méthode de diagnostic employée, de l'utilisation de l'aide au diagnostic, du nombre de problèmes résolus, et d'éventuels problèmes rencontrés par le logiciel.

The grade of the practical work takes into account the diagnosis method used, the use of the software help, the number of problems solved and possible software bugs.

La note du DS est une évaluation commune aux trois cours : Flexographie, offset, procédés numériques.

Calendar

The course exists in the following branches:

Additional Information

Semester 7 - This course is given in english only EN

Curriculum->Pagora Engineer - Student->Semester 7
Curriculum->Pagora Engineer - Apprentice->Semester 7


Sécurité-Environnement
Les consignes relatives à la sécurité et à l'environnement sont évoquées en tant que de besoin. Les enseignements ont lieu dans des salles de cours ou des salles informatiques. Penser à éteindre ordinateurs et lumières en quittant la salle. Safety and environmental constraints are mentioned when appropriate. Teaching takes place in classrooms. Turn off computers and lights when leaving the classroom or computer room. Si travail autour d'une presse industrielle: respect des consignes de sécurité détaillées par l'enseignant avant les travaux. Cheveux longs attachés autour des machines, pas de foulard, pas d'habits flottants. Les éventuels effluents sont collectés pour être évacués par des prestataires spécialisés / interdiction d'évacuer les effluents dans les réseaux communs. If work around an industrial press : respect the safety rules described by the teacher : no "floating" clothes, attach long hair, etc. If effluents are generated, they are to be collected by specialized companies and shoould not be thrown into the sink or sewage.

Bibliography

SIROST J.C. L'offset : principes, technologies, pratiques. Paris : Dunod, 2007.
MACPHEE J. Fundamentals of lithographic printing. Volume 1: Mechanics of printing. Pittsburgh : Sewickley : GATFpress, 1998.
Sites Web des constructeurs de presses. Press manufacturers' web sites.
Magazine Caractère ( http://www.caractere.net/ ).

Certains éléments bibliographiques sont disponibles sur le site Internet Chamilo / some bibliographic elements are available on the Chamilo Web site :
http://chamilo.grenoble-inp.fr/main/document/document.php?cidReq=PAGORAA23FM05108&id_session=0&gidReq=0&gradebook=0&origin=
ou :
http://chamilo.grenoble-inp.fr/main/document/document.php?cidReq=3FMT2031&id_session=0&gidReq=0&gradebook=0&origin=&id=394783

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Date of update July 24, 2020

Université Grenoble Alpes