The paper moisture influence to the carton reliability

 The paper moisture influence to the carton reliability

Moisture content is also an important indicator of the performance of paperboard. If the paper fiber porous, so it can easily absorb the moisture in the air, the increase of water content will greatly reduce the compressive strength, carton deformed, transportation and stacking caused by collapse. The choice of high quality, closely spaced base paper can effectively solve the problem of water absorption. At the same time, the waterproof work of cartons must be well done, and good waterproof treatment should be carried out. It is necessary to store or store high humidity goods in high humidity environment. www.chinacartonmachine.com

The new national standard "corrugated board" GB/T6544-2008 stipulates that the moisture content of paperboard should be no more than 14%, that is, an upper limit for the moisture content of cardboard. Cardboard too much water, will affect its normal use. But it is worth mentioning that the national standard here does not give a specific lower limit value. In fact, the moisture content of the cardboard is too low, the same does not meet the actual production situation, and found in daily work, the moisture content of cardboard is generally more than 7%, more suitable for processing and production. Visible, cardboard moisture content is too high or too low are undesirable, keep at an appropriate level is very necessary.