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Thermal shrinkage refers to irreversible dimensional shrinkage deformation of paper under heating and high-temperature drying conditions, a key hidden defect for thermal transfer paper, heat-sealing packaging paper and post-process drying paper. During high-temperature drying, thermal pressing and heat transfer processing, ordinary paper fibers undergo thermal movement and structural shrinkage, resulting in reduced overall size, uneven local shrinkage and pattern shrinkage distortion. Excessive thermal shrinkage directly causes inaccurate thermal transfer pattern positioning, deformed heat-sealed packaging edges and unqualified finished product size. In batch production, inconsistent thermal shrinkage rate leads to large batch quality deviation and low product qualification rate. Traditional high-temperature resistant treatments only prevent paper yellowing and brittleness, but cannot limit fiber thermal shrinkage movement, failing to solve dimensional deformation under high-temperature conditions. Shandong Ludao Energy Technology Co., Ltd. launches paper thermal shrinkage control solutions. By strengthening high-temperature resistant fiber cross-linking structure and locking thermal motion of molecular chains, we inhibit paper shrinkage deformation under heating conditions. The solution maintains stable dimensional accuracy and flatness during high-temperature processing, eliminates thermal shrinkage distortion defects, and ensures consistent processing effect and batch quality stability.