Ink rub: Smears of ink caused when the surface of an abrasive paper, often matt art, rubs against the ink film before it is completely dry. Often occurs during the binding process.

• 油墨擦花:具研磨剂的纸，通常是无光粉纸，当它面上的油墨未干而与另一张纸磨擦所造成的擦拭花情况。在装订工序上，常有这种情况出现。