Preserving the color
Lin chose to focus on the less widely studied topic of bamboo, rather than mainstream timber, for his master’s thesis research. Inspired by the botanical specimens in his laboratory, he developed a method of preserving the vibrant green color of moso bamboo.
Lin explains that after a bamboo culm is felled, the chlorophyll in its outer skin breaks down rapidly. This chemical process, combined with exposure to sunlight, turns the color of bamboo from green to yellowish brown. This is why most of the bamboo artifacts we come across look buff-colored.
To forestall this chromatic change, Lin draws on the technique of “displacement reactions,” immersing three-year-old bamboo in a chemical solution and heating it, to replace the magnesium in the chlorophyll with the copper in the solution. At the end of the heating process, the copper will have returned to the solution. This technology, which significantly slows down the breakdown of chlorophyll, is certified by SGS as leaving no hazardous chemical residues in the bamboo.
In this way, Lin has been able to preserve the enticing green color in his bamboo tableware and teaware, the likes of which are rarely found elsewhere. If the faded colors of traditional bamboo objects exude old-time elegance, Lin’s creations retain the exuberant vitality of living bamboo plants.
Lin is not formally trained in traditional craftsmanship. What he relies on is his professional knowledge of bamboo, plus his enthusiasm. Nevertheless, his mind overflows with ideas when it comes to the wonderful versatility of bamboo crafts. A longstanding devotee of bamboo, Lin sometimes feels that it is hard for bamboo to achieve the popularity of hardwoods, the latter deriving their appeal from the beautiful patterns of their wood grain and from their rich aromas. But with his expertise, Lin—dubbed Dr. Evergreen Bamboo—is able to take full advantage of the peculiar characteristics of bamboo in his works. Few are better qualified to champion bamboo than he is.
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Clay and sulfuric acid were applied to the bodies of these bamboo teapots to etch the cracks and mottled patterns into the surface of the bamboo.
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Tea scoops with the green of the bamboo preserved through a chemical process. Made of square bamboo (Chimonobambusa quadrangularis), the cicada-shaped scoop (left) won a Good Craft Award from the National Taiwan Craft Research and Development Institute.