我們都知道重型紙箱包裝一般是采用七層重型瓦楞紙板黏合生產而成的，這種瓦楞紙板做成的紙箱不管是硬度還是承重能力都非常的高。能夠擁有這樣出色的性能不僅是材質上的優勢，還有一部分是制作過程中所產生的一些優勢，下面小編帶大家一起了解一下七層瓦楞紙板黏合中需要注意的五大要點。
We all know that heavy carton packaging is generally produced by bonding seven layers of heavy corrugated board. The cartons made of this kind of corrugated board are very high in both hardness and load-bearing capacity. Being able to have such excellent performance is not only the advantage of material, but also some advantages produced in the production process. Let's take a look at the five points that need to be paid attention to in the bonding of seven layer corrugated board.
1、瓦楞芯紙復合時，涂布膠水會增加瓦楞芯紙含水量，膠黏劑干燥后又要防止瓦楞芯紙脆化，因此選擇含水量少、滲透性緩，并易于均勻涂布的瓦楞芯紙復合用膠黏劑非常關鍵。
1. When the corrugated core paper is compounded, coating glue will increase the water content of the corrugated core paper, and the adhesive will prevent the embrittlement of the corrugated core paper after drying. Therefore, it is very important to choose an adhesive for corrugated core paper compounding that has less water content, slow permeability, and is easy to be evenly coated.
2、在滿足復合后黏合強度的前提下，上膠量以盡可能少為原則。
2. On the premise of meeting the bonding strength after composite, the amount of glue should be as small as possible.
3、壓瓦楞前，控制好復合后的瓦楞芯紙的濕度也很重要。濕度太大不但影響成型，而且會在復合時引起脫膠;濕度太小，會在瓦楞成型彎曲時使楞峰脆化破裂。
3. Before pressing corrugated, it is also important to control the humidity of the corrugated core paper after lamination. Too much humidity will not only affect the molding, but also cause degumming during compounding; If the humidity is too low, the ridge peak will be brittle and broken when the corrugated molding is bent.
4、七層瓦楞紙板的瓦楞楞型應由制輥企業根據兩層瓦楞芯紙和一層膠的厚度專門計算設計，以生產出理想的瓦楞紙板。
4. The corrugated type of seven layer corrugated board should be specially calculated and designed by professional roll making enterprises according to the thickness of two layers of corrugated core paper and one layer of glue, so as to produce an ideal corrugated board.
5、在真空吸附式單面機上加工七層瓦楞紙板時，要注意調節好吸附系統(吸附罩與瓦楞輥的位置、間隙和風量)和加熱系統;復合后的瓦楞芯紙要求有更高的溫度才能將熱量傳遞到楞峰，滿足糊化溫度的要求。
5. When processing seven layers of corrugated board on the vacuum adsorption single-sided machine, pay attention to adjusting the adsorption system (the position, gap and air volume between the adsorption cover and the corrugated roller) and the heating system; The composite corrugated core paper requires a higher temperature in order to transfer heat to the corrugated peak and meet the requirements of gelatinization temperature.
加厚的瓦楞芯紙硬度會變大，容易在成型后脫離瓦楞輥，影響涂膠和復合，產生高楞、塌楞、脫膠和“木耳邊”等質量問題，所以必須有足夠的吸附風量和負壓以及加熱溫度，才能保證在瓦楞紙板成型后順利涂膠復合。
The thickened corrugated core paper will become harder, and it is easy to separate from the corrugated roller after forming, which will affect the gluing and compounding, resulting in quality problems such as high and low ridges, corrugation, degumming and "ear edge". Therefore, there must be sufficient adsorption air volume, negative pressure and heating temperature to ensure the smooth gluing and compounding after the corrugated board is formed.
The above is a detailed introduction about the carton manufacturers. I hope it will help you. If you have any questions, please contact us. We will provide services for you with a professional attitude http://www.cwfarm.cn
