Application of Pyrolysis-Gas Chromatography/Mass Spectrometry to the Analysis of Lacquer Film
Year: 2012
Type: book-chapter
Abstract: Introduction 1.1 Characteristics of lacquerOriental lacquer is a reproducible natural product that has been used for thousands of years in Asia.No organic solvent evaporates during the drying process, only water.Because of the self-drying system, natural lacquer is an eco-friendly product that is expected to be useful in the future as a coating material.Lacquer trees are members of the family Anacardiaceae, which includes more than 73 genera worldwide and approximately 600 species including mango (Mangifera indica) and cashew (Anacardium occidentale), but most of them grow in the subtropical region of Southeast Asia [1-3].In general, only a few kinds of lacquer trees that grow in the evergreen forests of East Asia are able to produce lacquer sap.Lacquer has been used in Asian countries for thousands of years as a durable and beautiful coating material [4][5][6][7].Cultural treasures coated with lacquer have maintained their beautiful surfaces without loss of their original beauty for more than 9000 years [8][9][10].Lacquer sap for the manufacture of lacquerware is collected not only in China and Japan but also in Southeast Asia, as shown in Figure 1-1.In Japan, about 10 years after cultivating a lacquer tree, cuts are made in the tree trunk.A white, milky resin seeps out of the wounds, and this sap is collected in a keg.After the lacquer sap has been collected, the tree is left untouched for 3 or 4 days before cuts are again made in the tree to collect more sap.Laccol (MW=348) is the main component of Rhus succedanea trees, which grow in Vietnam and Chinese Taiwan, and thitsiol (MW=348) is the main component of Melanorrhoea (Gluta) usitata trees, which grow in .All these saps are used as a surface coating for wood, porcelain, and metal wares in Asia.www.intechopen.com
Source: InTech eBooks
DOI: 10.5772/32235
Authors: Rong Lu, Takayuki Honda, Tetsuo Miyakoshi
Institution: Meiji University
Language: English
Subfield: Archeology (arts and humanities)
Field: Arts and Humanities
Domain: Social Sciences
Open Access status: hybrid
OpenAlex ID: W1515254815