Brasil Pack Trends 2020

BrasilPackTrends2020 147 qual ity and new technologies (hydrophilic): polyglycol, ethylene/propylene glycol; and an active desiccant component: molecular sieve, silica gel or combined desiccants. The CSP’s desiccant polymer can be used as an internal layer of tubes, cap liner, seals and internal layer of a laminated structure with aluminum for blister. Concerning the liquid absorbers, there are many products in the market, such as Thermarite® or Peaksorb® (Peakfresh Products, Australia), Toppan™ (ToppanPrintingCo., Japan) and Dri-Loc (Cryovac Sealed Air, EUA), used for meat, fish, chicken and fresh products in general. Basically, the system consists in a superabsorbent polymer located between two plastic films or non-woven with micro perforation. The most used absorbent polymers are the polyacrylate sodium, carboxymethyl cellulose fiber and amide copolymers. FIGURE 6.4 Liquid absorber incorporated into the film for minimally processed fruits: “Fruit Pop” Pouches (Maxwell Chase Technologies) Source: Press Release Cryovac associated an anti-theft system to the liquid absorber in the Dri-Loc ® Theft-Sensor Pad product, which contains a label called Sensormatic Ultra-Max ® label, to be used with the EAS system – Ultra-Max ® Electronic Article Surveillance (Figure 6.5). An example of innovation in this field was given by the German company Sealpac, which developed a thermoformed packaging system, for vacuum packing, with double compartment; the first packs the product and the second collects and holds the liquid exuded from the meat, increasing the product shelf life, allowing the package to be displayed straighten up or hanging on hooks in the expositors (Figure 6.6). FIGURE 6.5 Liquid absorbers with anti-theft system Source: Press Release FIGURE 6.6 Liquid absorber in thermoformed package Source: Press Release An observed trend is the association of moisture/ liquid absorbers with other active package technologies, such as oxygen and aroma absorbers, antimicrobials and pH controllers, multiplying the benefits of the active package. The concept is to provide the synergism reached by the relative humidity control, and microbiological growth in fresh products, resulting in combined effects of hurdle technologies.