The demand for rice packaging bags is very large. Commonly used rice packaging bags include upright bags, three-side seal bags, back seal bags and other bag types, which can be inflated or vacuumed. Due to the particularity of rice packaging bags, in the production of rice packaging bags, no matter the process or materials, the thickness of the materials or the heat sealing method, there will be special treatment.
According to rice packaging bag manufacturers , in the finished product testing of packaging bags, there is usually a strict testing process for the strength and sealing of the materials to test the quality of rice packaging bags. The peel strength of the composite film used in rice packaging bags is poor, that is, the composite fastness between the single films in the composite film is poor, and delamination of the composite film is prone to occur.
When the heat sealing strength at the heat seal is high, delamination of the composite film may easily occur at the heat seal under the impact of the packaging contents or extrusion by external forces, resulting in air leakage and rupture near the heat seal of the package. It can be verified through burst pressure and peel strength tests.
Various hidden dangers caused by woven bag manufacturers during the production process: If the parameters of the heat sealing equipment are set improperly, it will easily lead to poor heat sealing quality and poor heat sealing, that is, the heat sealing is not tight and is easy to separate or heat seal. Excessive, that is, the heat sealing strength is too high, and the root of the heat sealing port will break, which can easily cause air leakage and rupture of the heat sealing port. It can be verified by sealing performance and heat sealing strength.
The inability to seal rice plastic vacuum packaging bags is also related to the speed of the sealing machine. If the speed is too fast, the sealing area will not be heated in the future and will be transported to the cold pressing area by the traction roller for cold treatment, which may not meet the quality standards of heat sealing. The transparent tea vacuum bag is made of resin, and the transparent tea vacuum bag should be placed away from the source of the smell.
If it is often placed in a smelly environment, irritating molecules will be adsorbed to the outside, producing many special odors. The same goes for transportation. The stored heat should be lower than 35 degrees Celsius, otherwise low molecular substances will move out at a high speed and the heat generated will increase. In the production workshop, the ambient heat cannot be too high, otherwise low molecular substances may precipitate during processing.
Post time: Dec-15-2023