Characterization and comparison of Asian lacquer saps

Honda, Takayuki; Lü, Rong; Sakai, Ryosei; Ishimura, Takahisa; Miyakoshi, Tetsuo

doi:10.1016/j.porgcoat.2007.09.003

Cited by 68 publications

(47 citation statements)

References 11 publications

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“…For the Chinese lacquer film (Figure 3(a) and Figure 3(b)) is characteristic a quite regular microscopic structure with a certain roughness, in which can be observed dark brown insular areas (mostly of around 20 -40 µm) on a more uniform whitish film with micro-crystalline structure. This is in accordance to studies of Takayuki Honda et al (2008) [18] and explainable by the complex composition of this material.…”

Section: Resultssupporting

confidence: 94%

A Preliminary Study of Three Finishing Materials for Traditional Chinese Furniture

Liu¹,

Cristina²,

Maria³

2014

AMPC

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The traditional Chinese furniture evolved as an important part of the Chinese culture and civilization. Alongside design, structure, ornaments, the original finishes applied define the particularities and value of traditional Chinese furniture. This is because wood finishing not only enhances wood natural beauty by colour, gloss and highlighting of wooden texture, but also can be a means of exquisite decoration (e.g. engraved, gilded or painted lacquer works). Chinese lacquer, Tung oil and Chinese wax represent some of the most important finishing materials employed and were, therefore, selected for this study. The paper presents a brief macroscopic, microscopic and FTIR characterization of these materials. These results will be used as starting data in a further study on the ageing properties of these traditional finishing materials, useful for scientific conservation purposes.

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Section: Resultssupporting

confidence: 94%

A Preliminary Study of Three Finishing Materials for Traditional Chinese Furniture

Liu¹,

Cristina²,

Maria³

2014

AMPC

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“…1 The lacquer sap from Melanorrhea usitata, which has thitsiol as the main component, has a slower drying time and requires more severe drying conditions than sap from R. vernicifera, which has urushiol as the main component, and produces a smoother and glossier film surface. However, the lacquer sap from M. usitata is about 2000-3000 yen kg À1 in the Japanese market, which is cheaper than that from R. vernicifera (10,000-12,000 yen kg À1 in the Japanese market).…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of a new lacquer based on blending urushiol with thitsiol

Honda

Lü

et al. 2011

J of Applied Polymer Sci

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A new lacquer that blends R. vernicifera (Chinese lacquer, urushiol) with Melanorrhea usitata (Thai lacquer, thitsiol) was prepared. The main properties, viscosities, drying times, drying mechanism, and the nature of the lacquer films as a coating material, were examined. In addition, the mechanism of transfer radical reaction that occurred between urushiol and thitsiol is discussed based on the results of two-dimensional nuclear magnetic resonance (NMR) and field desorption mass spectrometry (FD-MS) measurements. A blended lacquer with 70% R. vernicifera and 30% M. usitata showed almost the same drying time as 100% R. vernicifera as examined in an automatic drying time recorder but had higher surface smoothness and gloss. Furthermore, the molecular weight distribution, UV resistance, and glass transition temperature (T g ) also were investigated in detail.

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“…Liquid lacquer is the sap of these trees and is composed of a mixture of catechol derivatives, water, polysaccharides, glycoproteins and enzymes that catalyse the polymerisation-oxidation mechanism leading to a hard and insoluble matter [21][22][23][24][25][26][27][28][29][30]. The sap is collected and then stored for several weeks in waterproof baskets where fermentation and decantation will give different qualities.…”

Section: Contextmentioning

confidence: 99%

“…The selected quality is then mashed (water removal promotes oxidation and a subsequent viscosity increase) and annealed. Tung/abrasin oil is then added [21,22]. The pigment is generally mixed with the liquid lacquer before the application on the substrate pre-coated with lacquer.…”

Section: Contextmentioning

confidence: 99%

“…Portable IR instrument determines the media and 785 nm Raman instrument identifies only a limited number of the pigments identified at the laboratory with fixed instruments. Previous lacquerware studies dealt with archaeological artifacts and with Japanese urushi, [16][17][18] th century artifacts [21][22][23][24][25][26][27][28][29][30], mainly using Pyrolysis Gas Chromatography and Mass Spectrometry (Py-GC/MS) but did not concern the pigment palette identification. FT-IR spectroscopy was also used on powdered samples in KBr pellets or specially prepared films [26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Lacquerware Pigment Identification with Fixed and Mobile Raman Microspectrometers: A Potential Technique to Differentiate Original/Fake Artworks

Colomban

Mancini

2013

Arts

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(FT) Raman spectroscopy is used for the first time to identify pigments used in 19 th & 20 th century Japanese and Vietnamese Lacquerwares. IR spectroscopy is used to assess the Lacquer matrix. Different operative conditions and parameters were experimented with on a limited number of lacquerwares in order to determine the optimal procedure for the identification of pigments/dyes as potential chronological or technological markers. The test was then performed in the collector's rooms with a mobile Raman set-up. Different pigments (vermilion, Prussian Blue, Naples Yellow, Phtalocyanine Blue, anatase, rutile, chalk, carbon black) were identified despite a strong fluorescence and a rapid degradation of both pigments and binder under increasing laser power. Better spectra were obtained on older lacquerwares.

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Characterization and comparison of Asian lacquer saps

Cited by 68 publications

References 11 publications

A Preliminary Study of Three Finishing Materials for Traditional Chinese Furniture

A Preliminary Study of Three Finishing Materials for Traditional Chinese Furniture

Preparation and characterization of a new lacquer based on blending urushiol with thitsiol

Lacquerware Pigment Identification with Fixed and Mobile Raman Microspectrometers: A Potential Technique to Differentiate Original/Fake Artworks

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