The dyeing of living Moso bamboo and its utilization

• Main Authors: Min-lang Huang, 黃敏郎
• Other Authors: Lan-sheng Kuo
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/59027276660951476414

碩士 === 國立中興大學 === 森林學系 === 90 === During the period of 1961-1971, Taiwan has earned tremendous foreign exchange from the export of bamboo handicrafts. However, due to labor shortage, increasing wages and lots of imported bamboo products from southeastern Asian countries the profits are decreasing for the bamboo farmers. This study aims at injecting the water solution of 3 dyestuffs i.e. Basic Violet 10, Basic Green 4 and Acid Scarlet 3R into the internode of 3-year-old living Moso bamboo to allow dye molecule to lift through these water-filled capillaries(vessel) in response to pressure gradient caused by transpiration. The roots of bamboo develop a positive hydrostatic pressure in their vascular bundle tissue-also called root pressure which can help dye molecules move with water up-ward. The beautiful color stripe in longitudinal section and color spot in cross section of Moso bamboo can be achieved with this simple and easy living bamboo dyeing technique. For the better lightfastness of basic dyes in bamboo, when compared to its poor lightfastness in dyed paper, it is assumed that the dyed tissues were surrounded by the high UV-absorbing-power of bamboo lignin which could lessen color reversion of basic dyestuffs. Additionally, Acid Scarlet 3R has good lightfastness. Except bamboo’s yellowish color in nature, dyed living Moso bamboo can be used as good raw materials for the manufacture of bamboo handicrafts. The colorful debarked bamboo can be used for numerous purposes, such as furniture, pen box, over-lay veneer of plywood, carving material and flowerpot etc. Of course, we need further studies to expand the utilization of dyed living Moso bamboo.