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Paper lay flatness is a basic core indicator that affects automated processing and finished product appearance quality. In actual production and application, many paper sheets suffer from warping, wavy deformation, uneven flat placement and arching bulges after cutting, stacking and printing. These problems are mainly caused by asymmetric internal fiber stress, uneven transverse and longitudinal moisture distribution, inconsistent drying shrinkage rate and unbalanced surface sizing tension. Poor lay flatness directly leads to paper jamming, feeding deviation and positioning errors in high-speed printers, laminators and die-cutting equipment, greatly reducing automated production efficiency and increasing manual sorting workload. For high-precision office paper, luxury packaging paper and book printing paper, unflat paper will cause inconsistent printing pressure, blurred patterns and uneven lamination bonding, resulting in a large number of defective products. Most traditional improvement methods simply adjust drying temperature or air volume, which can only relieve surface deformation temporarily but cannot fundamentally eliminate internal stress differences. Shandong Ludao Energy Technology Co., Ltd. launches professional paper flatness optimization solutions. By balancing transverse and longitudinal fiber shrinkage, homogenizing overall paper moisture distribution, and releasing residual internal stress, we thoroughly solve paper warping, arching and wavy deformation. The solution maintains long-term stable flat placement performance of paper in different temperature and humidity environments, perfectly adapts to high-speed automatic processing equipment, effectively reduces processing defective rate, and improves finished paper appearance grade and customer experience.