Traditionally these papers were made by hand, but now Japan exports machine-made papers of suitable quality. They are available in different weights and under a variety of names. The names are not specific and do not guarantee the fiber content of the paper. Some Japanese papers contain wood pulp and are not appropriate for conservation purposes. Hinges may be cut or torn.
Some conservators believe a fibrous torn edge holds better.
A torn edge will create a less visible attachment on thin or transparent papers. They must be used when the object is floated, i.e., when the edges of the work of art are exposed. The bottom of the T is adhered to the reverse of the object. The top is attached to the backboard, usually with a cross piece. Because the cross piece does not touch the object, Japanese paper and paste do not have to be used.