The composite bag is suitable for vacuum packaging or general packaging of food, electronic products, chemicals, medicine, tea, precision instruments and cutting-edge defense products. So, what are the commonly used composite bags? Let’s discuss it together today. 1. BOPP/LLDPE two-layer composite bag Features: moisture-proof, cold-resistant, low-temperature heat-sealing strength; Application: instant noodles, snacks, frozen snacks, powdered…
1. The meaning of composite packaging materials The so-called composite packaging is a material composed of two or more materials with different properties combined together. The composite packaging material is to follow the advantages of the combination of strengths and avoid weaknesses in the microstructure to expand the scope of use and improve economic benefits,…
1. Physical protection The food stored in the packaging bag needs to avoid squeezing, impact, vibration, temperature difference and other phenomena. 2. Shell protection The outer shell can separate food from oxygen, water vapor, stains, etc., and leakage prevention is also a necessary factor in packaging design. Some packages include a desiccant or deoxidizer to…
In the market, vacuum packaging and vacuum air-filled packaging are mostly used to keep food fresh. In order to preserve the food, in addition to controlling the external temperature and sterility, it is more important to control the proper gas environment of the food, select the appropriate packaging materials, and the vacuum packaging bag can…
Generally speaking, special-shaped bags also belong to the level of plastic flexible packaging, and are available for all flexible packaging materials and structural foundations. Therefore, the most basic design principles are still the same as general flexible packaging bags. In addition, when designing, we must first consider relevant laws and regulations, the role of packaging…
Vacuum packaging is a packaging that protects products from environmental pollution and prolongs the shelf life of food, which can improve the value and quality of products. Vacuum packaging technology originated in the 1940s. Since the successful application of polyester and polyethylene plastic films to commodity packaging in 1950, vacuum packaging machines have developed rapidly.…
With the improvement of people’s material living standards, people are more and more advocating a simple and free life. In a fast-paced living environment, gift boxes have gradually become the first choice for people to give gifts. After all, we don’t have so much time and energy to buy gifts, so; choosing what to buy,…
Aluminum foil bags can be seen from the name, aluminum foil bags are not plastic bags, and can even be said to be better than ordinary plastic bags. When you want to refrigerate or pack food now, and you want to ensure that the freshness of the food is as long as possible, which packaging…
The spout bag is also called the English name of the spout bag: spout bag. The spout bag is an emerging beverage and jelly packaging bag developed on the basis of the self-supporting bag. The structure of the nozzle bag is mainly divided into two parts: the nozzle and the self-supporting bag. The stand-up pouch…
Kraft paper bag is a packaging container made of composite materials or pure kraft paper. It is non-toxic, tasteless, non-polluting, low-carbon and environmentally friendly. It meets national environmental protection standards. It has high strength and high environmental protection. It is currently one of the most popular environmentally friendly packaging materials in the world. one. Kraft…
