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Slitting stability determines the yield and quality consistency of roll paper and narrow-specification paper products. In high-speed slitting and longitudinal cutting production, many paper rolls suffer from unstable slitting quality, including uneven slit width, edge warping after cutting, micro cracking, sheet layer separation and inconsistent tightness. These defects are caused by unstable internal stress, uneven fiber density and unbalanced surface tension of the paper web. Unstable slitting performance will lead to specification deviation of finished narrow paper rolls, edge damage during winding, and frequent paper breakage in slitting process, seriously reducing production efficiency and finished product qualification rate. For label base paper, adhesive tape base paper and narrow industrial roll paper, slitting instability will directly affect downstream rewinding and automatic processing quality. Most factories only adjust slitting tool parameters and running speed, which cannot eliminate paper inherent stress defects, and slitting quality fluctuation still exists in batch production. Shandong Ludao Energy Technology Co., Ltd. launches professional paper slitting stability optimization solutions. By releasing paper web residual stress, homogenizing transverse fiber density and balancing surface tension, we ensure stable and neat cutting effect during high-speed slitting. The treated paper has accurate slitting size, smooth and flat cutting edge, no post-slitting deformation and layering, effectively reduces slitting breakage rate and defective rate, and realizes stable and standardized production of various specification roll paper.