Brasil Pack Trends 2020

BrasilPackTrends2020 152 qual ity and new technologies FIGURE 6.14 Self-heating packages Source: Press Release FIGURE 6.15 Self-cooling packages with Source: Press Release It is expected that the nanotechnology shall bring innovations, especially in the sector of package self-cooling for beverages and that other technological platforms such as the combination of thermoelectrical and photovoltaic systems will be able to be used. Issues of sustainability associated to the recycling of the packages and use of non-aggressive to the environment cooling liquids, will be very important matters at the developments. or by humidity. That encapsulated aroma release technology can be applied to various manufacturing processes of plastic packages: blow moulding, injection, thermoforming, extrusion and in liners and gaskets. It can also be applied in inks and coatings. The coating can be done on plastic packages and on cardboard. The appeal of the technology involves consumer satisfaction and even satiety. The aroma can be released inside or outside the package. The emitters can be used as a complement to food aromas or replacing the food compounds that might be harmful to health. Package systems that heat up or cool down the products attract consumers due to the great appeal of convenience. Exothermic reactions are used for self- heating, such as water and calcium oxide – CaO. For self- cooling, an endothermic chemical reaction that steals heat from the environment can be used, or the heat pump, that uses steam or another compound, such as CO 2, as cooling fluid for heat transfer. Those technologies are normally associated to devices attached to the packages. There have been some packages that are self- heating, which were initially developed for coffee beverages and now also hit the market of read to eat soups. There are only a few examples of packages that are self-cooling, aiming at the beverages market, though that topic has been researched for more than one decade. The Hot-Can self-heating technology (Figure 6.14) consists in an aluminum can with double chamber, which contains the product in the external chamber and water with calcium oxide, separated by a membrane in the internal chamber. When a button on the base of the can is pressed, those compounds get mixed and generate and exothermic reaction that heats up the product in the external chamber (Figure 6.14). HeatGenie is another example of self-heating package based on solid fuel, which will generate energy converted into heat in a controlled manner. The fuel stays held in a compact module attached to the base of the package (Figure 6.14). In Italy, one company sells coffee beverages in packages that uses the endothermic reaction technology between thiosulfate pentahydrate and water for cooled beverages. Another example is from Joseph Company from California, the can called ChillCan (Figure 6.15), that generates a fast expansion of the pressurized CO 2 that evaporates and cool down the beverage in minutes. Self-heating and self-cooling packages