The importance of the sealing of pet food packaging bags

With the gradual improvement of people's material life and the increasing number of families keeping pets, pets have gradually become an important member of the family, which promotes the development of the pet food industry. Like our daily food, pet food also has product quality and safety requirements. Pet food has the same shelf-life requirements, in the shelf life, pet food ensures that there is no deterioration, odor, loss of nutrients, and other problems. Many factors affect the shelf life, including preservatives, packaging, storage conditions, and so on. Here we will focus on pet food packaging bags.

Pet food generally contains protein, fat, amino acids, minerals, crude fiber, vitamins, and other ingredients, which also provide good breeding conditions for microorganisms. Therefore, to ensure the nutritional value of pet food and extend the shelf life, it is necessary to inhibit the activity of microorganisms. Microbes depend on three factors for their survival: ambient temperature, oxygen, and water. During the shelf life, the oxygen and moisture content of the package is more dependent on the integrity and barrier properties of the pet food packaging bags. Among them, the integrity of packaging has the most direct impact on shelf life.

The more common pet food packaging bags on the market with plastic flexible packaging, self-standing zipper bag, composite plastic packaging, paper-plastic packaging, aluminum-plastic packaging, and tin cans, etc. Regardless of the type of package, the integrity of the package is very important. If the package is porous or leaky, oxygen and water vapor will enter the bag, resulting in qualitative changes in pet food. The integrity of the package is easy to appear in the heat seal of the bag, the cover of the container, and other materials docking parts.

At present, the common pet food package on the market is equipped with plastic flexible packaging, composite plastic packaging, eight-sided sealing self-standing bag, organ bag, paper-plastic packaging, aluminum-plastic packaging and tin packaging cans, the most commonly used for zipper self-standing composite plastic flexible packaging and aluminum plastic packaging. The composite structure can effectively improve the mechanical capacity and barrier performance of the whole package.

If the peel strength is too low, it indicates that the composite quality is poor, the packaging bag can not better achieve the multi-layer material dispersion force, together to play the quality of the barrier expectation, the packing is easy to break when falling, the barrier performance is lower than expected. Heat sealing strength represents the strength of packing sealing. If the heat sealing strength is too low, it is easy to cause cracking of the seal and the scattered pet food in the handling process, leading to the contact of the pet food with oxygen and moisture in the air, and the food is easy to mold.

Therefore, the overall sealing of the pet food packaging bag is very important. If the package is not complete, there is no doubt that under the action of oxygen and water in the air, pet food will easily become moldy, and the nutrients will also be lost. When consumers buy food for their pets, they must carefully check whether the pet food package is complete and free of leaks.