蜂窝纸板包装箱应防水防潮。它的作用实际上是保持盒子耐压。纸张受水的侵蚀,瓦楞纸会坍塌和软化,大大降低了包装的性。然而,大多数人认识到防水纸箱只是纸箱成型后的防水问题,而忽略了原来纸箱的含水量,其实控制瓦楞纸的含水量对提高瓦楞纸箱的性能也非常重要。如何控制蜂窝板的含水率?
Honeycomb cardboard boxes shall be waterproof and moisture-proof. Its function is actually to keep the box pressurized. Paper by water erosion, corrugated paper will collapse and soften, greatly reducing the safety of packaging. However, most people realize that the waterproof carton is only the waterproof problem after the forming of the carton, but ignore the water content of the original carton. In fact, controlling the water content of the corrugated paper is also very important to improve the safety performance of the corrugated box. How to control the moisture content of honeycomb panel?
,当瓦楞纸板进入单面机的含水率控制在9% ~ 12%之间时,瓦楞纸板成形效果较好。当瓦楞纸的含水率高于指标时,可以通过增加瓦楞纸的预热面积或降低瓦楞纸的速度来解决。当瓦楞纸的含水率低于指标时,可以通过喷雾解决。作者认为,当单面蜂窝纸板在向前内插类型和叠加距离的传送带的过街天桥是相同的,原始的纸的含水量和瓦楞原纸可以调整更好的含水量是更合适的。立交桥上堆放的单面蜂窝纸板数量不宜过多,但为保证双面机不停机,单面机换纸时可适当增加单面蜂窝纸板堆放在立交桥上的数量。
First of all, when the moisture content of corrugated board entering the single side machine is controlled between 9% and 12%, the corrugated board forming effect is better. When the moisture content of corrugated paper is higher than the target, it can be solved by increasing the preheating area of corrugated paper or reducing the speed of corrugated paper. When the moisture content of corrugated paper is lower than the index, it can be solved by spray. The author thinks that when the type of single-sided honeycomb paperboard inserted forward is the same as the overpass of the conveyor belt with overlapping distance, the water content of the original paper and the corrugated paper can adjust the better water content is more appropriate. The quantity of single-sided honeycomb paperboard stacked on the overpass should not be too much, but in order to ensure that the double-sided machine does not stop, the quantity of single-sided honeycomb paperboard stacked on the overpass can be appropriately increased when the single-sided machine changes paper.
其次,干燥温度对蜂窝纸板含水率的影响。蜂窝板生产线的加热段一般由三(或四)组组成。加热板的数量由加热板的尺寸和蜂窝板生产线的速度决定,每套配备独立的控制阀。为保证单面蜂窝板进入烘干机前的含水率基本相同,可在三层预热器上调节单面蜂窝板的预热面积。调整方法为:当含水率过高时,预热面积增大;当含水率过低时,预热面积减小。
Secondly, the influence of drying temperature on the moisture content of honeycomb paperboard. The heating section of honeycomb panel production line is generally composed of three (or four) groups. The number of heating plates is determined by the size of the heating plates and the speed of the honeycomb production line. Each set is equipped with an independent control valve. In order to ensure that the moisture content of single-sided honeycomb plate is basically the same before entering the dryer, the preheating area of single-sided honeycomb plate can be adjusted on the three-layer preheater. The adjustment method is: when the moisture content is too high, the preheating area increases; when the moisture content is too low, the preheating area decreases.
由于蜂窝纸板包装箱的生产过程需要大量的热量,部分饱和蒸汽在预热器和瓦楞辊中会变成冷凝水,通常通过疏水阀排出。为了保证凝结水的正常排放,建议每4小时打开疏水阀前的旁路阀3-5分钟,以保证温度的相对稳定。
Because the production process of honeycomb cardboard box needs a lot of heat, part of saturated steam will become condensed water in preheater and corrugating roller, which is usually discharged through drain valve. In order to ensure the normal discharge of condensate, it is recommended to open the bypass valve in front of the drain valve every 4 hours for 3-5 minutes to ensure the relative stability of temperature.
建议通过控制糊化量,用玉米淀粉胶制备蜂窝板。它的主要成分是玉米淀粉、水、氢氧化钠和硼砂。由于蜂窝纸板生产线的不同配置,其速度不同,制备的胶粘剂粘度、浓度和糊化温度也不同。我希望以上能对你有所帮助。
It is suggested to control gelatinization and prepare honeycomb with corn starch glue. Its main components are corn starch, water, sodium hydroxide and borax. Due to the different configuration of honeycomb paperboard production line, its speed is different, and the viscosity, concentration and gelatinization temperature of the adhesive are also different. I hope the above can help you.