Four general properties of packaging film introduced by food packaging bag manufacturers
1. Unitization: This is one of the biggest characteristics of wrapping film packaging. With the help of the super winding force and retraction of the film, the product is tightly and fixedly bundled into a unit, so that the scattered small parts become a whole. Even in adverse environment, the product does not have any looseness and separation, and there is no sharp edge and viscosity, so as to avoid damage.
2. Primary protection: the primary protection provides the surface protection of the product, forming a very light and protective appearance around the product, so as to achieve the purpose of dust, oil, moisture, water and theft. It is particularly important that the wrapping film packaging can make the packaging materials evenly stressed and avoid the damage caused by uneven force, which is impossible for the traditional food packaging bag (such as bundling, packaging, tape packaging).
3. Compression fixation: with the help of the retraction force after the stretching of the winding film, the product is wound and packaged to form a compact, non space occupying unit as a whole, so that the pallets of the products are tightly packed together, which can effectively prevent the mutual dislocation and movement of the products in the transportation process. At the same time, the adjustable tensile force can make the hard products close to each other, and make the soft products tight, especially in the smoke Grass industry and textile industry have a unique packaging effect.
4. Cost saving: the use of wrapping film for product packaging, food packaging bags can effectively reduce the use cost, using winding film only about 15% of the original box packaging, about 35% of the heat shrinkable film, about 50% of the carton packaging. At the same time, it can reduce labor intensity of workers, improve packaging efficiency and packaging grade.
Packaging material knowledge: introduction of vacuum packaging bag
Vacuum packaging bag refers to a kind of packaging method that the product is added into the airtight packaging container, and the air inside the container is pumped out to make the sealed container reach the predetermined vacuum degree.
Vacuum bag, also known as decompression packaging, is to extract all the air in the packaging container and seal it to maintain the bag in a high decompression state. The lack of air is equivalent to the effect of low oxygen, which makes microorganisms have no living conditions, so as to achieve the purpose of fresh fruit and disease-free. The application of vacuum packaging in plastic bags, aluminum foil packaging, glassware packaging, etc. Packaging materials can be selected according to the type of goods. As fruit is a kind of fresh food, it is still in respiration, and high hypoxia will cause physiological diseases. Therefore, vacuum packaging is seldom used in fruits. www.dgbpk.com/
Dongguan Beite packaging materials Co., Ltd
Dongguan special bag, plastic bag, plastic bag, plastic bag