International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The paper aims to present of the problem of the endangerment of the Bulgarian written heritage. The task set for the Bulgarian culture by the present time is urgent, because the preservation of the written cultural legacy is a serious problem which cannot be postponed. We are obliged to look for ways to preserve and make available to the Bulgarian nation and to the international cultural society our rich cultural relics on paper, parchment etc.

This paper briefly reviews the deterioration of written heritage from a chemical point of view and then discusses conservatio n and restoration. Restoration is seen as an art surgery, and conservation as an art by which we postpone the inevitable aging and preservation of the written heritage. The ecological approaches in this area are considered.