How To Control The Temperature To Regulate The Moisture Content Of Cardboard

03-01-2020

How To Control The Temperature To Regulate The Moisture Content Of Cardboard


According to the tension principle in the corrugated board forming process, the moisture content of the base paper entering the single-sided machine during the corrugating forming process is preferably 9% to 12%. Higher values do not work, lower values will affect the quality of the cardboard, so how do we control the temperature?

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1. Three temperature control methods when the moisture content of the base paper is too high
 Method 1: After the temperature of the preheating roller reaches the requirements, the movable paper guide roller of the preheating roller can be appropriately adjusted to increase the preheating wrap angle and preheating area of the base paper.

corrugated cardboard box

Method 2: If the preheating area of the preheating roller is adjusted to the maximum, and the moisture content of the base paper is still too high, a method of reducing the speed should be adopted;
 
Method 3: When conditions permit, the steam supply pressure of the boiler can be appropriately increased to achieve the purpose of increasing the temperature of the preheating roller and achieving the preheating requirement.




 

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2. When the moisture content of the base paper is too low, there are two methods of temperature control
 
Method 1: Adjust the preheating area of the movable paper guide roller accordingly. At the same time, the preheating roller and spraying device on the single-sided machine are used to spray the base paper to increase the water content of the base paper and meet the standard requirements;

Method 2: Properly increase the vehicle speed to reduce the contact time between the base paper and the preheating roller, and also solve the problem of low water content to a certain extent.

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