2000.05.16

Needle-leafed Trees Part 1--Hinoki
Hinoki is the wood most Japanese are familiar with, but most Japanese do not realize that it is the highest quality wood used in constructing Japanese homes. Also, hinoki tree oil has an excellent fragrance and is said to have a soothing or calming effect on people.

Hinoki is a variety of tree found only in Japanムthe trees called Taiwan Hinoki are actually a sub-species of Hinoki. The famous Kisoh hinoki and Bishu hinoki all refer to hinoki naturally growing around the volcano Mt. Ontake after it`s eruption 300 years ago. Today, a board of this hinoki at least 30 cm and 30 mm thick is worth more than the same surface area covered with one hundred dollar bills.

The bark of hinoki differs from sugi (Japanese cedar) and was used in the thatched Hiwada-style roofs of old Japanese homes and teahouses.

Among hinoki trees there are both those growing naturally in national forests and those planted in private forests. The hinoki from private forests have irregular growth rings and are both hard and strong; they are perfect for use as a construction material but are not appropriate for sculpture. Many hinoki from national forests have stood for over one hundred years and have packed in many growth-rings. But nevertheless young trees from these forests are difficult to deal with in the same ways as those from private forests.


Lumbering and Carving
It is best to choose a tree with faintly pink-colored wood with regularly spaced, consistent growth rings. Also trees with no difference between their summer wood and winter wood tend to be too hard be carved. The best trees are the aforementioned Kisoh (Bishu) hinoki found in Nagano and Gifu prefectures, but they are incredibly expensive. Their price escalates even higher with the size of the piece, so generally most people can not use them. Objects made from hinoki sapwood have a certain calmness and dignity and are therefore perfect for carving Buddhist figures. The reasons hinoki has been used for Noh masks and Buddhist statues is that it is light, generally un-warped, and extremely resistant to rotting and decay.
The growth rings of hinoki are beautiful. If you are carving from a sapwood ita-me board, you should carve the front of your piece from the side of the board which was farthest from the center of the tree. If you are worried about warping or cracking, you should use a masa-me board.
(ita-me boards are boards cut from the tree which don`t contain the center)
(masa-me boards contain the actual heartwood of the

Because the grain of hinoki is extremely long, elastic and durable, it can not be carved perpendicular to the grain. Carving against the grain is extremely difficult and you are liable to slice off too much wood if you strain too hard. For rough carving and finishing, carving knives need to be thin and finely sharpened. Especially with V-shaped or round knives, when carving perpendicular to the grain you will encounter one direction that will be against the grain, so please take care to sharpen these knives extremely well. Hinoki is extremely difficult for beginners to carve and it is also very expensive. It is best to begin by carving hime-komatsu and then progressing to hinoki after you become more skilled. Even for professionals carving hinoki requires skill and expertise.                


Finishing
Japanese needle-leafed trees hold a large amount of sap. Because dust easily clings to them, it is best not to leave them unfinished or else you piece will become dirty. It is best to use a thin coat of wax, lacquer or artificial finish. Artificial finishes usually have very hard surfaces and will crack over a long period of time due to the expanding and contracting of the much softer wood. Try to use a natural finish or only apply a very thin coat of artificial finish.

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