grain
1. In machine-made paper and board, the direction
in which the majority of the fibers are oriented.
See: MACHINE
DIRECTION . 2. In leather, the term is used
primarily to indicate the top or outer, i.e., hair
side, layer of a hide or skin that has been split
into two or more layers. A "grain layer," is just
that portion of a skin that extends from the
surface exposed by removal of hair or wool and
epidermis, down to about the level of the hair or
wool roots. It can also mean the follicle pattern
visible on the outer surface of a skin after the
hair or wool and epidermis have been removed. See
also: GRAIN
PATTERN . 3. In cloth, the "grain is the
direction of the WARP threads. (143 , 234 , 291 , 320 , 363 )
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