About Food-grade Aluminium Foil Stand-up Pouches Customisation
Food-grade aluminium foil stand-up pouches as a widely used packaging, its characteristics are, with beautiful printing patterns, novel shape, etc., but many food packaging factories in the stand-up aluminium foil bags on the customization of some problems.
Stand-up aluminium foil pouches compared to the traditional standard packaging bags, in the production of more points to pay attention to, even if the final bag-making process, a careless bag shape is easy to appear uneven and poor symmetry and other issues. These problems not only affect the appearance of the bag will directly affect the consumer’s desire to buy.
In fact, as long as attention to detail in the production process control, timely detection and resolution of the above problems is not difficult. For example, the bag shape is not flat, as we all know, flatness is one of the indicators to measure the quality of the appearance of the bag. The flatness of food-grade aluminium foil stand-up pouches is generally related to the production of selected materials, but also with the heat sealing temperature, heat sealing pressure, heat sealing time and cooling effect and other factors. In production, too high a heat sealing temperature or too high a heat sealing pressure and too long a heat sealing time will result in shrinkage and deformation of the composite film, affecting the forming of the stand-up aluminium foil pouch later; likewise, when insufficient cooling will result in insufficient shaping after heat sealing and the production of folds.
In the face of poor symmetry, the first thing we have to realise is that symmetry not only affects the appearance of the stand-up aluminium foil bag, but also its sealing performance. In this regard, we must pay attention to the bottom material tension control during production, so as not to cause bottom deformation or wrinkles due to tension mismatch; in addition to the bottom material problem, the bag shape asymmetry may also be related to factors such as photoelectric tracking, material release, cursor design, rubber roller balance, etc., which need to be solved according to different packaging products and different bag-making equipment during actual production.