News

Transparency consistency is a core precision index for thin packaging paper, tracing paper and high-grade printing thin paper. Many thin paper products suffer from uneven transparency, local light transmission spots and batch transparency deviation in mass production. This defect is mainly caused by uneven fiber density distribution, inconsistent filler content, micro-thickness difference and irregular internal pore structure. Excessive local transparency will lead to light leakage of packaging paper, affecting product shading and protection performance, while low transparency areas cause inconsistent printing background color, resulting in overall pattern distortion and color difference. For high-precision tracing paper and decorative thin paper, transparency deviation directly downgrades product grade and fails customized order standards. Most traditional adjustment methods rely on manual control of pulp dosage and pressing pressure, which can only reduce deviation slightly and cannot achieve microscopic uniform transparency. Unstable transparency has always been a difficult quality bottleneck restricting the high-end market development of thin paper enterprises. Shandong Ludao Energy Technology Co., Ltd. provides professional transparency uniformity optimization solutions. By precisely adjusting fiber dispersion uniformity, optimizing graded filler distribution and balancing micro-pore structure of paper, we eliminate local light transmission difference and realize full-page and batch consistent transparency. The solution does not affect paper basic physical strength and printing adaptability, stabilizes thin paper optical performance, meets high-standard precision production requirements, and improves market competitiveness of high-end thin paper products.