Tokyo National Research Institute for Cultural Properties Center for Conservation Science
Department of Art Research, Archives and Information Systems Japan Center for International Cooperation in Conservation
Department of Intangible Cultural Heritage


International Course on Conservation of Japanese Paper 2025

Practical work in restoration techniques for mounts
Visiting a hand-made paper (Homminoshi) studio

 The ‘International Training Course on Conservation of Japanese Paper’ is jointly organized by the Tokyo National Research Institute for Cultural Properties (TOBUNKEN) and the intergovernmental organization ICCROM (International Centre for the Study of the Preservation and Restoration of Cultural Property). The course started in 1992 and has a good reputation. This year, 166 candidates applied and 10 trainees participated in the program from 25 August to 12 September.

 Washi, traditional Japanese paper, is made of plant fiber from the kozo, a kind of mulberry tree. Characterized by its long fibers, it is thin yet strong, and its durability and texture that does not damage cultural properties make it an excellent restoration material. It is used for restoration of artworks in various countries.

 The program included lectures on protection systems for paper and cultural properties of Japan and practical training in ‘Restoration Techniques for Mounts,’ which is a national designated restoration technique. While participants have already gained experience as paper conservators in their respective workplaces, the workshop provided an opportunity to reinforce appropriate knowledge, including skills of using Japanese tools and materials. Participants’ feedback has been positive and mentioned that they would share their experiences with colleagues and students upon returning home and recommend this training program to others.

 This training program also aims to facilitate interaction among trainees themselves, between trainees and Japanese expert instructors, and with manufacturers of restoration materials and tools through field visits. These interactions are not only a benefit for participants but also an opportunity to motivate Japanese experts and manufacturers of tools and materials. We also intend to continue organizing future training programs with the aim of serving as a bridge between experts and manufacturers, who are experts in Japan and overseas engaging in conservation and restoration of cultural properties, and manufacturers of tools and materials for restoration of cultural properties.


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