Corrugated box is a kind of widely used packaging products, the dosage has been one of the various packaging products. With its superior performance and good processing performance, it has gradually replaced wooden boxes and other transport packaging containers and become the main force of transport packaging. It not only protects the goods, facilitates storage and transportation, but also beautifies and publicizes the goods. In the Polish operation of corrugated box, it is necessary to strictly admit the following points in order to ensure the moisture-proof Polish quality of corrugated box

1：油墨：需要留意涂料与油墨的结合问题，必要时先涂一层胶。

1: Ink: need to pay attention to the combination of paint and ink, if necessary, first apply a layer of primer.

2：涂层厚度：上光涂层经过紫外光辐射后光引发剂被引发，会产生游离基或离子，这些游离基或离子与预聚体或不饱和单体中的双键起交联反应，构成单体基。这些单体基会经过连锁反应生成聚合体固体高分子，完成上光涂料的干燥过程。涂布层过厚，在相同功率光源的照耀下干燥时间相对长，一方面影响上光油的干燥，另一方面使纸张的含水量相对削减，会使张纸变脆易断，影响油层的耐磨性。

2: Coating thickness: after UV radiation, photoinitiator is initiated to produce free radicals or ions. These free radicals or ions react with double bonds in prepolymer or unsaturated monomer to form monomer group. These monomers will produce polymer solid polymer through chain reaction to complete the drying process of glazing coating. Coating layer is too thick, in the light of the same power light source drying time is relatively long, on the one hand, affect the drying of varnish, on the other hand, the water content of the paper is relatively reduced, will make the paper brittle and easy to break, affect the wear resistance of oil layer.

3：光源：UV照耀光源一般采用高压汞灯或金属卤化物灯（以无极灯为佳），光源的功率也要求安稳。高压汞灯的输出功率一般为80～120W/cm，才干保证涂料的固化速度小于0.5s。

3: Light source: UV light source generally adopts high pressure mercury lamp or metal halide lamp (electrodeless lamp is better), and the power of the light source is also required to be stable. The output power of high-pressure mercury lamp is generally 80 ~ 120W / cm, which can ensure the curing speed of the coating is less than 0.5s.

4：纸张涂料不适合对容易浸透的纸张进行加工，由于涂猜中的分子资料简单浸透到纸张中，引起纸张的变暗乃浸透。这种情况下，只要加速印刷速度，并增加灯管数量。为了防止浸透现象，可先用红外在层进行涂布，以避免上涂料时出现浸透现象

4: The paper coating is not suitable for the paper which is easy to be soaked. Because the low molecular data in the coating can be easily soaked into the paper, the paper will be darkened or even soaked. In this case, as long as the printing speed is accelerated and the number of lamps is increased. In order to prevent the phenomenon of penetration, you can first use the infrared bottom coating in the bottom layer to avoid the phenomenon of penetration when coating
             

5：稀释剂：上光油一般来说需运用专用稀释剂，稀释量控制在1:0.51:1左右，过多则会影响上光效果（具体视涂膜量而定）。

5: Diluent: glazing oil generally need to use special diluent, dilution control in 1:0.5 to 1:1, too much will affect the glazing effect (depending on the amount of film).

6：黏连（未干透）：涂布太厚，应下降黏度；灯功率缺乏或老化，应替换UV灯使之到达额定功率。

6: Adhesion (not completely dry): if the coating is too thick, the viscosity should be reduced; if the lamp power is insufficient or aging, the UV lamp should be replaced to reach the rated power.

7：平滑度不佳：上光机涂布辊筒损坏或上光油黏度高，应替换或重磨辊简，下降上光油黏度。

7: Poor smoothness: glazing machine coating roller damage or high viscosity, should replace or regrinding roller, reduce the viscosity of the varnish.

8：上光亮度差：若济南瓦楞纸箱纸张质量差或外表粗糙、吸油量大，应改用高一档纸张；涂布不均匀或上光油稀释太薄、黏度过，应调整上光机及进步上光油黏度；附着力差，印刷品油墨层晶化或油墨添加剂及防滑剂等运用不当，应改进印刷工艺，不用或少用油墨添加剂；上光油黏度太，应调整上光机及进步上光油黏度。

8: Poor gloss: if the paper quality of Jinan corrugated box is poor or the appearance is rough and the oil absorption is large, a higher grade paper should be used; if the coating is uneven or the varnish dilution is too thin and the viscosity is too low, the polishing machine should be adjusted and the varnish viscosity should be improved; if the adhesion is poor, the printing ink layer crystallization or the ink additive and antiskid agent are not used properly, the printing process should be improved, and the oil should not be used or less Ink additives; on oil viscosity is too low, you should adjust the machine and progress on oil viscosity.

9：上光层发白：交联密度。稀释剂运用不当，因夏天醇类溶剂蒸发速度快，应替换稀释剂或改用酯类稀释剂。

9: White layer: low cross-linking density. If the diluent is not used properly, because the evaporation speed of alcohol solvent is fast in summer, the diluent should be replaced or the ester diluent should be used instead.

10：涂布层偏黄：上光油涂层太厚，黏度偏大，应下降黏度；上光油过期（运用期限一般为6个月），应停止运用。

10: Coating layer yellow: too thick varnish coating, viscosity, should reduce viscosity; glazing oil expired (use period is generally 6 months), should stop using.