通常预印瓦楞纸箱的面纸是白板纸，裱贴时是在瓦楞纸箱的外层，因而也容易接触到外界的空气水分。所以，白板纸的一些技术指标如何，也直接影响整个纸箱的防潮性能。
Usually the surface paper of the pre printed corrugated box is white board paper. When mounting, it is on the outer layer of the corrugated box, so it is easy to contact the air and water outside. Therefore, some technical indicators of white board paper, also directly affect the moisture-proof performance of the whole carton.
根据生产工艺实践体会隋况，白板纸的印刷表面粗糙度、平滑度、光泽度和吸水性对纸箱防潮性能影响较大，所以订货时必须强调要求这些技术指标应控制在标准范围，甚要求还可高于标准，以提高纸箱的防潮性能。特别是印后加工采用上光工艺的白板纸，纸面涂布质量差容易吸油，使纸面缺乏应有的油层和亮度，就容易吸收外界的水分。
According to the experience of production process, the printing surface roughness, smoothness, glossiness and water absorption of white board paper have great influence on the moisture-proof performance of cartons. Therefore, when ordering, it must be emphasized that these technical indicators should be controlled within the scope of national standards, or even higher than national standards, so as to improve the moisture-proof performance of cartons. In particular, the white board paper with polishing process is easy to absorb oil due to poor coating quality, which makes the paper lack of proper oil layer and brightness, so it is easy to absorb external water.
按照标准GB/Tl0335.4-2004《涂布白板纸》规定和技术指标要求，涂布白板纸分品、一等品和合格品三种，并有白和灰之分，且技术指标有一定的差异。在生产工艺实践中发现，质量等级高的白板纸，上光后纸面光亮度较高，反之，则明显缺乏光亮度，其抗湿性能也就差。
According to the national standard GB / tl0335.4-2004 coated white board and the requirements of technical indicators, there are three types of coated white board, i.e. divided products, first-class products and qualified products, and there are white and gray bases, and there are certain differences in technical indicators. In the practice of production technology, it is found that the brightness of white board paper with high quality grade is higher after polishing, otherwise, it is obviously lack of brightness, and its moisture resistance is poor.
所以，根据食品的质量等级不同和销售地环境温湿度的差异，选择合适等级的白板纸进行印刷，既可兼顾适度包装的经济性，又较好地可达到防潮包装、满足市场使用的质量要求。
Therefore, according to the different quality grades of food and the difference of temperature and humidity in the environment where the food is sold, choosing the appropriate grade of white board paper for printing can not only give consideration to the economy of appropriate packaging, but also better meet the quality requirements of moisture-proof packaging and market use.
