How important are packaging materials for desiccants?
Water vapor permeability
The breathability of desiccant packaging materials is the main manifestation of their effectiveness. Desiccant DIN5473 German standard and ML-D-3464 [US military standards both require packaging materials for desiccants to have good water vapor permeability. The use of packaging materials with poor breathability
Desiccants often absorb moisture slowly, which affects their ability to control humidity.
Tensile performance
During the movement or transportation of goods, the desiccant may be stretched due to compression or twisting. If the desiccant packaging material does not have good tensile strength, there is a high possibility of package breakage,
Tear resistance performance
During storage and transportation, packaging bags may be torn due to external forces. Adequate resistance to tear propagation can reduce the transmission of tears, thereby avoiding leakage
Heat sealing firmness
The most easily breakable part of the desiccant bag is the seal, so when purchasing desiccants, it is necessary to check whether the sealing edge of the drying engraving is firm. Regardless of how excellent the other properties of a packaging material are, if the heat sealing effect is not good in a day, it is still not suitable for use as a drying engraving packaging material
Material.
Leak resistance
Due to the fact that desiccants not only absorb moisture from the air, but also lock the moisture inside the product packaging to prevent reverse evaporation or leakage from contaminating customer products, packaging materials not only need to have breathability, but also need to have leak proof properties.
Desiccants are mainly used for moisture prevention. It is very important to choose a suitable desiccant for our own product on the basis of safety and effectiveness. This requires us to understand some basic knowledge of desiccants in the process of choosing desiccants, and combine price factors to choose the desiccant product with the highest cost-effectiveness.