Barvne lazure na kovinski lističih: od tehnologije do sodobnih konservatorsko-restavratorskih rešitev

Debevec, Zala (author), Vuga, Martina (mentor), Kavkler, Katja (comentor)

Magistrsko delo obravnava barvne lazure na kovinskih lističih, ki sodijo med najpomembnejše dekorativne tehnike na polikromirani leseni plastiki med 15. in 18. stoletjem. Gre za transparentne barvne nanose na srebrnih, kositrnih, zlatih in drugih lističih. Delo je razdeljeno na dva dela. Teoretični del se osredotoča na materialno sestavo lazur na podlagi zgodovinskih receptur in arhivsko analizo vzorcev, hranjenih na Zavodu za varstvo kulturne dediščine Slovenije, Restavratorskem centru (ZVKDS RC), s čimer je bila hkrati tudi postavljena baza za prihodnje kemijske raziskave. Obravnavana je tudi konservatorsko- restavratorska problematika: dejavniki razkroja, prisotnost preslikav, etična vprašanja, povezana z njihovim odstranjevanjem, ter tehnološki napredek pri metodologiji konserviranja-restavriranja. Praktični del je usmerjen v iskanje selektivnih in minimalno invazivnih metod za odstranjevanje kasnejših plasti (lakov, bronz in oljnih preslikav) z lazuriranih površin ter v vzpostavitev protokola za odstranjevanje teh materialov. Protokol smo preizkusili na petih študijah primerov. Ugotovitve so strnjene v strokovne smernice za celostno konservatorsko- restavratorsko obravnavo teh površin.

• Language: Slovenian
• Keywords: konservatorstvo-restavratorstvo, kulturna dediščina, barvne lazure na kovinskih lističih, zgodovinske tehnike, odstranjevanje preslikav, baročno kiparstvo, lesena polikromirana plastika, laboratorijske in analitske metode, magistrska naloga
• Work type: Master's thesis/paper
• Organization: ALUO - Academy of Fine Arts and Design
• Year: 2026
• PID: 20.500.12556/RUL-188938
• Publication date in RUL: 30.09.2026

Secondary language

• Language: English
• Title: Color glazes on metal leaf: from technology to contemporary conservation and restoration solutions

Abstract

This master's thesis examines coloured glazes on metal leaf, which were among the most significant decorative techniques used on polychrome wooden sculpture between the 15th and 18th centuries. These transparent layers, applied over silver, tin, or gold leaf, create the distinctive luminous effects characteristic of Baroque aesthetics. The thesis is divided into two parts. The theoretical part focuses on the material composition of glazes based on historical recipes and the archival analysis of samples held at the Institute for the Protection of Cultural Heritage of Slovenia, Restoration Centre (IPCHS RC) establishing a baseline for future research. It also addresses conservation-restoration issues: degradation factors, overpaintings, ethical questions regarding their removal, and technological advances in conservation-restoration methodology. The practical part focuses on identifying selective and minimally invasive methods for removing secondary layers (varnishes, bronze paints and oil-based overpaintings) from glazed surfaces and on establishing a protocol for the removal of these materials. The protocol was tested on five case studies. The findings are synthesised into professional guidelines for the comprehensive conservation-restoration treatment of these surfaces, which is the the primary objective of this work.

• Keywords: conservation-restoration, cultural heritage, colored glazes on metal leaf, historical techniques and materials, overpaint removal, baroque sculpture, polychrome wooden sculpture, laboratory and analytical methods, MA thesis