Paper Grain
For Example:
23 x 35 Grain Long -(normal, runs best the pressure from the cylinders escapes out the ends)
23 x 35 Grain Short
GRAIN DIRECTION
One or more of the following five tests will determine the direction of the grain:
23 x 35 Grain Long -(normal, runs best the pressure from the cylinders escapes out the ends)
23 x 35 Grain Short
GRAIN DIRECTION
One or more of the following five tests will determine the direction of the grain:
- Cut a sample about 2 inches square from the sheet marking its original position in the sheet. Wet one side. As it dries it will curl.
- Moisten two right angle edges of the sheet, and press between the fingers. As the sheet dries, the edge across the grain will be wavy; with the grain, straight.
- Tear the sheet in two directions. It tears straighter and cleaner with the grain.
- Fold the sheet in two directions. It folds easier and smoother with the grain.
- If the paper has a laid finish, the grain is usually parallel to the chain marks (widely-spaced lines) and across the wire marks (closely-spaced lines). This is not a conclusive test because paper is sometimes made with the chain marks running across the grain.