The course is oriented to the restoration of the canvas support and consists of a theoretical and practical part.

The theoretical part takes inspiration from the technical literature starting from the first reports of linings at the end of the 17th century with some notes on intermediate treatises up to the codification by G. Secco Suardo. This is followed by an introduction to the rethinking of the method advanced in the Greenwich conference with the description of alternative linings based on synthetic resins and the introduction to modified traditional methods.

This is followed by an analysis of the most recent updates: strip lining and the refusal to dismantle the painting

The practical part involves the use of at least 5 models prepared by the students divided into groups of 2/3 people on which to put into practice different types of lining with all the operations that result.

Depending on the availability of ancient works already present in the laboratory, some operations can be repeated on original works.

THEORETICAL PART

· Lining in traditional restoration: some notes on lining in ancient times and the codification in the 19th century by Secco Suardo.

Analysis of the materials that make up the glue paste and their function

How the lining process takes place from the painting mounted on the ancient frame to the finished work and all the intermediate operational phases: the vellum, the cleaning of the back, the consolidation, the adhesion of the two canvases and the removal of the protections

· The two main Italian schools: the “Roman” method and the “Florentine” method

· The risks of accidents or damage that may occur during lining, the traces of any damage that may be recognized on past interventions. The traditional practice involves some risks: the presence of humidity and the risk of the canvas shrinking or the preparation swelling, the risk of the temperature being too high and the color burning, the glue-pasta with too much glue, the Japanese paper entering the crack, etc.

· The options of synthetic resins as alternatives to traditional lining, the work of Berger and Mehra.

· An example of hybrid lining in the work of a restorer trained in Rome: the proposal of Matteo Rossi Doria: lining with flour and synthetic resin

· Evaluation of the various methods in relation to the needs of the work, how to decide when it is essential to line.

· The systems for suturing lacerations, from patches to the method proposed by Winfried Heiber.

· Notes on alternative systems to lining: strip lining and maintenance on the original frame

PRACTICAL PART

· Preparation of models painted by students divided into groups of 2/3 people, of the maximum size allowed to be accommodated in the low-pressure table:

Tensioning of the canvas, preparation and application of the layer of gesso-glue, creation of a generic painting, damage to the models sufficiently to test the consolidation.

· Glazing of the models with Japanese paper and adhesives of different types: animal glues, synthetic resins. Application with a brush or with pre-treated papers

· Consolidation of the canvas, the preparatory layer and the color. Use of the main synthetic resins and glues of animal origin.

Recognize the most common cases and distinguish between adhesive power and aggregating power.

· Suturing of lacerations and integration of tissue gaps, evaluation of some thread-to-thread methods.

· Surface improvement in raised cracks

· Preparation of the paste glue and Roman lining

· “ “ Florentine

· “ “ “ M..R.Doria

· Preparation of the canvas and lining with Beva 371

· Preparation of the canvas and lining with Plextol B500

· Removal of the vellum

· Unlining tests

· Margining - strip lining of unlined paintings

· Processes to be carried out on ancient works, if available

D.1 The student must demonstrate knowledge and understanding of the executive techniques, the phenomenology of degradation, cleaning techniques, structural interventions on the support and on the preparatory and pictorial layers of a painting on canvas

D.2 The student must apply the knowledge acquired in practice, demonstrating an aptitude for solving problems also in reference to new and interdisciplinary situations

D.3 The student must demonstrate autonomy of evaluation and ability to find and assimilate information and data useful for the correct formulation of an intervention hypothesis

D.4 The student must demonstrate the ability to draft a detailed technical report of the interventions carried out with relative justification of methodologies and materials chosen using adequate specialist terminology

The teaching material prepared by the lecturer in addition to recommended textbooks (such as for instance slides, lecture notes, exercises, bibliography) and communications from the lecturer specific to the course can be found inside the Moodle platform › blended.uniurb.it

Assessment

Attendance at the restoration laboratory activities is mandatory; absences are permitted for no more than 25% of the total number of hours related to the Laboratory attended and for no more than 25% of the total number of hours of each individual section of the relative Laboratory. Attendance will be recorded. Attendance in the restoration laboratories is subject to the acquisition of certificates relating to the Safety courses as indicated in the Regulations of the Restoration laboratories.

After attending at least 75% of each individual laboratory section, the student will be able to take the relative partial exam during the official exam sessions.

After taking the partial exams of each of the 4 sections and the supplementary module, the exam will be recorded during the official exam sessions with a single evaluation resulting from the average of the partial evaluations. The final grade will be obtained as follows:

Average of partial grades + Supplementary module grade (the value of which will be calculated as a percentage based on the hours completed during the laboratory)

ORAL EXAM AND WRITTEN REPORT

Partial Exam

To take each partial exam, the student must present a Technical Report of the activity carried out in the laboratory. In agreement with the reference teacher. The paper must be sent by email at least two weeks before the exam to the teachers on computer support.

The partial exam consists of an oral interview to be taken with the teacher who belongs to the section.

The oral exam will focus on:

operations carried out in the laboratory;

bibliography provided by the teachers

discussion on the report presented.

The final grade of the partial exam will be the percentage sum of three grades: Laboratory, written report and oral exam. The evaluation metric will be as follows:

Laboratory 40%

Laboratory Activities will have the following evaluation from:

18 if the student covers the minimum attendance

19 to 28 if the student demonstrates good manual skills

28 to 30 if the student actively participates and interacts with the group

Written Report 20%

The written report will have an evaluation from

18 to 25 if the report covers all the topics covered

25 to 28 if the report has adequate technical language and relevant examples

28 to 30 if all the elements of the report are illustrated in a complete and thorough manner.

Oral exam 40%

The oral exam will have a score from

18 to 23 if the answers to the questions are incomplete and lack adequate language

24 to 28 if the answers to the questions are complete and with adequate language

28 to 30 if the student demonstrates the ability to process and interpret the acquired notions

Disability and Specific Learning Disorders (SLD)

Students who have registered their disability certification or SLD certification with the Inclusion and Right to Study Office can request to use conceptual maps (for keywords) during exams.

To this end, it is necessary to send the maps, two weeks before the exam date, to the course instructor, who will verify their compliance with the university guidelines and may request modifications.