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A new generation of engineers
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 : ?
    • Internship : ?
    • Written tests : 1.5
    ECTS : 25.0
  • Officials : Bernard PINEAUX

Goals

Understand how the offset lithographic process work and especially how the different phenomena interact.
Know the materials used in this process (plates, blankets, dampening solution) and their properties (inks are taught in a specific course).
Know the printing defects generated by such presses and how to diagnose them (observation, use of tools, interpretation).

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 second and third sessions are led in autonomy. 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 (if the schedule allows).

Prerequisites

Basics of printed communication engineering (densitometry).

Tests

A joint evaluation is proposed for the offset printing, flexography and digital processes courses.
Recoverable examination if the absence is justified.

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 justified absence as long as 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 au trois cours : Flexographie, offset, procédés numériques.

Calendar

The course exists in the following branches:

  • Curriculum - Pagora Engineer - Student - Semester 7 (this course is given in english only EN)
  • Curriculum - Pagora Engineer - Apprentice - Semester 7 (this course is given in english only EN)
see the course schedule for 2018-2019

Additional Information

Course ID : 4FMT1093
Course language(s): FR

You can find this course among all other courses.

Environmental security

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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Grenoble INP Institut d'ingénierie Univ. Grenoble Alpes