In web offset production, ink scuffing and rubbing, buckling, blistering, cracking and picking/build-up fill the middle of the complaint curve, while mottling and dusting are at the bottom.

• 在轮转胶印生产，油墨的划伤和摩擦，屈曲，起泡，开裂和选择/建立填补中间的投诉曲线，而斑驳和除尘是在底部。