Jose de la Roja- Complutense University of Madrid
Jose de la Roja
- Complutense University of Madrid
About
31
Publications
10,769
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
516
Citations
Introduction
Current institution
Publications
Publications (31)
In the field of conservation of cultural heritage, animal glues, synthetic resins, and some polysaccharides are used to consolidate pictorial layers. Meanwhile, in order to clean the obverse and the reverse of paintings, organic solvents and aqueous systems are sometimes employed in the form of gels. In this work, vegetable mucilages have been test...
3D printing is an additive manufacturing technique which involves the physical fabrication of an object from a digital model, by binding thin successive layers to build up the final shape. It was originated in the 1980s and currently is widely available for its use in contemporary sculpture. Fused Deposition Modelling (FDM) is one of the most acces...
Over the last few years, the dry cleaning process has become an excellent alternative to solvent or waterbased mixtures, which prevents diffusing the dirt into the painting structure during the cleaning process. The use of this kind of cleaning is especially effective on contemporary paintings as it prevents the solubilisation of additives such as...
The purpose of this work is to provide spectroscopic evidence of possible chemical pathways that took place in the formation of fossil resins Class I. The natural polymerization process is mimicked in the laboratory using pure communic acids (terpene derivatives) as reactants, which were subjected to controlled temperature treatment. We shall focus...
El estudio muestra en qué grado dos técnicas pictóricas, acuarela y pigmentos aglutinados al barniz (Gamblin), utilizadas en la reintegración cromática de obras arte, experimentan un cambio de color tras ser barnizadas. El método de trabajo ha consistido en aplicar dos tipos de barniz, mate y brillante, sobre diferentes muestras de color de cada un...
1 Palabras clave: polímeros en con-servación-restauración, degradación química, envejecimiento, espectroscopía FTIR-ATR, página web Polyevart Resumen En este trabajo se expone la metodología aplicada y los primeros resultados derivados del estudio de diversos materiales con múl-tiples usos dentro del contexto de la conser-vación del patrimonio, tal...
En el ámbito del Arte Contemporáneo, dispositivos como fotocopiadoras e impresoras láser se han convertido en herramientas artísticas de primer orden. Además de su empleo en diferentes manifestaciones artísticas, las imágenes electrográficas por ellas generadas pueden ser trasladadas a otros soportes artísticos mediante procesos de transferencia. E...
Materials used in the Conservation of Cultural Heritage have to be previously investigated to know their composition and long-term behaviour. It is therefore essential carried out their analytical characterization, to identify changes that it can suffer with the aging and the consequences for its initial properties. In this paper we study a variety...
The reproduction of an old recipe to obtain the pigment known as verdigris leads to a complex mixture of hydrated copper(II) acetates containing neutral verdigris and two varieties of basic verdigris. Since the characterization of such mixture is complicated by the lack of reference standards, we complemented our Raman measurements with Fourier tra...
Actualmente, una gran parte de las colecciones de diseño industrial contemporáneo incluyen multitud de piezas fabricadas en materiales plásticos. Estos objetos plantean una problemática específica en cuanto a su identificación material. Por otra parte, imprescindible para la elección adecuada de los tratamientos de conservación restauración. En est...
In the last few decades many new polymers have been synthesized that are now being used in cultural heritage conservation. The physical and chemical properties and the long-term behaviors of these new polymers are determined by the chemical composition of the starting materials used in their synthesis along with the nature of the substances added t...
The cartographic documents realized for the 18th century Military Engineers Corps and the documentary sources related to its accomplishment are of historical, artistic and cultural interest. In this paper sources related to techniques, materials and its application are analyzed. Pigments and colorants named in this literature are described, special...
The term verdigris embraces a wide range of synthetic pigments whose compositions can also vary. All are salts of copper, but their chemical composition will vary depending on the ingredients used to synthesize them and the conditions in which that synthesis is performed.
This article presents the results of applying some of the recipes contained i...
El sistema se basa en la reintegración cromática mediante tricomia, asistido por medios transferibles mediante presión. Consiste en la reproducción del color a reintegrar en las lagunas de una obra pictórica mediante transferencia y superposición de únicamente tres colores amarillo, magenta y cian, con sus correspondientes porcentajes, previamente...
La microscopía Raman es una técnica analítica que está experimentando un creciente interés en el análisis de pigmentos. Sin embargo, a pesar de la, a priori, sensibilidad y especificidad de esta técnica, se puede considerar que no existen referencias suficientemente detalladas orientadas a la interpretación global de los espectros registrados, así...
