Beva 371 and its Use as an Adhesive for Skin and Leather Repairs: Background and a Review of Treatments

Kronthal, Lisa; Levinson, Judith; Dignard, Carole; Chao, Esther Y.; Down, Jane L.

doi:10.1179/019713603806112796

Cited by 9 publications

(3 citation statements)

References 7 publications

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“…A primary concern during the structural treatment is the protection of the painted surface. The painted surface, which was ready to remove loose dust by gentle brushing and white spirit, consolidated by a solution of 5% and 10% of Beva 371 in white spirit by using brush (Kronthal et al , 2003). Then, we secured a painted surface.…”

Section: Resultsmentioning

confidence: 99%

Analytical study and structural treatment for a thin panel painting

Mohie

Sultan

2020

PRT

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Purpose This paper aims to provide a deeper understanding of the painting techniques, materials used and deterioration phenomena in a thin panel painting. As well as, straightening buckling in a thin panel painting and reinforcement have been used by an auxiliary support system. Design/methodology/approach This requires using several scientific and analytical techniques to provide a deeper understanding of the painting techniques, materials used, deterioration phenomena and a greater awareness of how well treatment the panel painting is. Visual observation and multispectral imaging (Visible Ultraviolet-induced luminescence, as well as Ultraviolet reflected and Infrared [IR]), optical Microscopy (OM), handheld X-ray fluorescence spectroscopy (XRF), X-ray diffraction, Fourier transform IR spectroscopy (FTIR) and gas chromatography were used in this case study. Findings The analytical study of a thin panel with different methods allowed defining that the thin panel painting consists of plywood panel, ground layer (white lead and animal glue) and painted layer (lead red, cobaltic black, chrome yellow, Venetian red, iron black and white lead and poppy oil). Also, these determined that a convex buckling was the main form of deterioration. The structure treatment was executed by using a wet compress to straighten the thin panel painting and followed by fixing a new special design of the second auxiliary support system on the back of the thin panel painting. Originality/value The importance of analytical study to determine the painting techniques, materials used, deterioration phenomena and how well treatment the panel painting is. As well as, using a wet compress to straightening of warping or buckling wooden panel painting. Also, the Plexiglas second auxiliary support system could use to reinforcement the wooden panel and control the wooden panel movements.

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Section: Resultsmentioning

confidence: 99%

Analytical study and structural treatment for a thin panel painting

Mohie

Sultan

2020

PRT

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“…Due to the extreme weakness of the fabric; it was necessary to perform rapid strengthening works to preserve the artefact and to prevent the continuous deterioration. The strengthening process was carried out using Beva 371, which is one of the materials that have been used successfully in the process of textile strengthening (28). Beva 371 a heat activated adhesive that dissolves in non-polar solvents and can be applied at ambient conditions as it does not require a heating procedure.…”

Section: Strengthen Proceduresmentioning

confidence: 99%

Multi-technique characterization and conservation of an ancient Egyptian fabric from King Khufu first solar ship

Nabil¹,

Khattab²,

Kamel³

2021

Preprint

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Textiles are among the most fragile artefacts in the world. They have been difficult to preserve even in the best circumstances. Herein, we studied an artefact fabric of a special nature in terms of usage. Despite the multiple applications of textiles, the piece understudy is one of the unique pieces that the ancient Egyptian used as fenders for King Khufu first solar boat which is the second-largest discovery in Egypt history. The boat was discovered inside a limestone pit. It was disassembled and arranged in several layers. Four pillows of wrapped fabric were found in the first layer, which were used as boat fenders. This use is in itself a great discovery of the role played by textiles in the manufacture of ancient boats. Thus, we conducted tests and analytical studies of those fenders using a scanning electron microscopy (SEM) and an optical microscope to identify the type and nature of fibers, spinning method and aspects of damage. Both energy-dispersive X-ray (EDX) analysis and infrared analysis (FT-IR) were employed to explore the elemental content of the sample and to study the functional groups of the fabric. These analytical processes were useful in carrying out the restoration and preservation work necessary for the artefact under study.

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“…Keywani [18] reported that acrylic resin based water borne polyurethanes [19] could enhance water resistance, chemical resistance also used in coa! ng, print, ink and leather adhesive [49][50][51]. We developed polyurethane emulsion, dispersion for leather applica!…”

Section: Cross-linked Polyurethane For Leather Processingmentioning

confidence: 99%

Polycarbodiimide and polyurethane cross-linkers for leather finishing

Ramkumar¹,

Murali²,

Preethi³

et al. 2017

LFJ

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ABSTRACT. This review focuses on polyurethane and carboxylic acid-carbodiimide cross-linked systems for leather fi nishes. Recently, these cross-links have become very popular in leather fi nishing. The cross-links in leather fi nishes improve the strength proper# es of the fi nished leather, the excess of cross-links causes bri$ leness. The mul# func# onal carbodiimide cross-linkers are useful for leather surface proper# es improvement. The carbodiimide groups are sensi# ve to hydrolysis; life # me of this func# onal group during polymeriza# on is enhanced. Water dispersible isocyanates, polyurethane copolymers and polyisocyanate cross-links have applica# ons in new technologies are discussed in this review. KEY WORDS: cross-linker, polycarbodiimide, diisocyanate, leather, polyurethane AGENŢI DE RETICULARE PE BAZĂ DE POLICARBODIIMIDĂ ŞI POLIEURETAN PENTRU FINISAREA PIELIIREZUMAT. Acest ar# col se concentrează asupra sistemelor de re# culare pe bază de poliuretan şi acid carboxilic-carbodiimidă pentru fi nisarea pielii. Recent, aceste # puri de re# culări au devenit foarte populare în fi nisarea pieilor. Re# cularea pielii la fi nisare îmbunătăţeşte proprietăţile de rezistenţă ale pieii fi nite, în # mp ce excesul de legături încrucişate determină fragilitate. Agenţii de re# culare mul# funcţionali carbodiimidici sunt u# li pentru îmbunătăţirea proprietăţilor de suprafaţă ale pielii. Grupările carbodiimidice sunt sensibile la hidroliză; durata de viaţă a acestui grup funcţional în # mpul polimerizării este sporită. Re# culările cu izocianaţii dispersabili în apă, copolimerii poliuretanici şi poliizocianaţi discutate în această lucrare au aplicaţii în tehnologii noi. CUVINTE CHEIE: agent de re# culare, policarbodiimidă, diizocianat, piele, poliuretan AGENTS DE RÉTICULATION POLYCARBODIIMIDE ET POLYURÉTHANE POUR LA FINITION DU CUIRRÉSUMÉ. Cet ar# cle met l'accent sur les systèmes de ré# cula# on à base de polyuréthane et de l'acide carboxylique-carbodiimide pour la fi ni# on du cuir. Récemment, ces types de ré# cula# ons sont devenus très populaires dans la fi ni# on du cuir. La ré# cula# on du cuir dans l'opéra# on de fi ni# on améliore les propriétés de résistance du cuir fi ni, tandis que la ré# cula# on excessive entraîne une fragilité. Les agents de ré# cula# on mul# fonc# onnels de carbodiimide sont u# les pour améliorer les propriétés de surface du cuir. Les groupes carbodiimide sont sensibles à l'hydrolyse; la durée de vie de ce groupe fonc# onnel pendant la polymérisa# on est augmentée. Les ré# cula# ons avec des isocyanates dispersables dans l'eau, des copolymères de polyuréthane et des polyisocyanates décrits dans cet ar# cle ont des applica# ons dans de nouvelles technologies. MOTS CLÉS: agent de ré# cula# on, polycarbodiimide, diisocyanate, cuir, polyuréthane

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Beva 371 and its Use as an Adhesive for Skin and Leather Repairs: Background and a Review of Treatments

Cited by 9 publications

References 7 publications

Analytical study and structural treatment for a thin panel painting

Analytical study and structural treatment for a thin panel painting

Multi-technique characterization and conservation of an ancient Egyptian fabric from King Khufu first solar ship

Polycarbodiimide and polyurethane cross-linkers for leather finishing

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