A Study of Starch Paste Used in Mounting Paintings

• Main Authors: Ling-Fen Liao, 廖伶芬
• Other Authors: Feng-Jyi Chang
• Format: Others
• Language: zh-TW
• Published: 1993
• Online Access: http://ndltd.ncl.edu.tw/handle/74487582086803998810

碩士 === 國立中興大學 === 森林學系 === 81 === Silk or paper is mainly part of the raw materials for Chinese scrolls,being deli6cate and flexible,they are easy to deteriorate after a long period. For the sake of conservation," mounting"which means putting paper lining or hemp cloth on the paper back with starch paste is used. Wheat starch paste is the most important material in mounting because the properties of wheat starch paste could affect the quality and conservation of the mounting of Chinese paintings.Due to the paper permanence apparently affected by the pH of paste,it is the aim of this study investigating properties of available wheat starch paste and also the relation between compositions affecting the nature of paste and deterioration of paper during the preparation process of paste.The results are presented as in the following: 1. The anti-fungal effect of insecticides and fungicides on wheat starch paste is not apparent and they do not accelerate the aging rate of paper very much.Though Ａｌ2（ＳＯ4）3 has a response in anti-fungal effect,low pH puts it at a disadvantage in conservation of paper. 2. Pre-soaking treatment for wheat starch gives quite limited effect on the removal of proteinous material but shows great effect on fungicides.With the increase of pre-soaking time,a slight increase in brightness and decrese in pH shows but not obvious effect on paper aging. 3. Ａｌ2（Ｓ Ｏ4）3 treated paper resulted in a fast aging rate,but alkaline treated paper was slower.Various alkalis exhibit different effects on paper permanence which ＭｇＣＯ3 andＢａ（ＯＨ）2 give little effect on brightness,and a lightly concentrated Ｎ ａ2ＣＯ3 is responsible for color reversion.A good paper permanence will be obtained by maintaining the pH around 7.0. 4. Ａｌ2（ＳＯ4）3 -added paste gives a little anti-fungal effect,but not quite helpful for paper permanence.A Ｎａ2ＣＯ3 -added Ａｌ2（ＳＯ4）3 containing starch paste gives rise to not only anti-fungal effect but also reducing the paper deterioration.