通常預(yù)印瓦楞紙箱的面紙是白板紙，裱貼時是在瓦楞紙箱的外層，因而也容易接觸到外界的空氣水分。所以，白板紙的一些技術(shù)指標如何，也直接影響整個紙箱的防潮性能。
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.
根據(jù)生產(chǎn)工藝實踐體會隋況，白板紙的印刷表面粗糙度、平滑度、光澤度和吸水性對紙箱防潮性能影響較大，所以訂貨時必須強調(diào)要求這些技術(shù)指標應(yīng)控制在標準范圍，甚要求還可高于標準，以提高紙箱的防潮性能。特別是印后加工采用上光工藝的白板紙，紙面涂布質(zhì)量差容易吸油，使紙面缺乏應(yīng)有的油層和亮度，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.
按照標準GB/Tl0335.4-2004《涂布白板紙》規(guī)定和技術(shù)指標要求，涂布白板紙分品、一等品和合格品三種，并有白和灰之分，且技術(shù)指標有一定的差異。在生產(chǎn)工藝實踐中發(fā)現(xiàn)，質(zhì)量等級高的白板紙，上光后紙面光亮度較高，反之，則明顯缺乏光亮度，其抗?jié)裥阅芤簿筒睢?/div>
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，根據(jù)食品的質(zhì)量等級不同和銷售地環(huán)境溫濕度的差異，選擇合適等級的白板紙進行印刷，既可兼顧適度包裝的經(jīng)濟性，又較好地可達到防潮包裝、滿足市場使用的質(zhì)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.
