1. Commonly used packaging bags 1. Flexible packaging (also paper packaging): For bulk nut food packaging bag
s, such flexible packaging
can be used, and the packaging bags are not filled with any substances. The material of the bag is generally a composite packaging material, but according to the barrier properties of different materials, the shelf life of the packaging bag made is different. Therefore, nut food packaging bags need to meet the requirements of good barrier properties and puncture resistance, so as to withstand the impact of nuts. 2. Vacuum packaging (plastic flexible packaging): Vacuuming will extend the shelf life of the product to a certain extent, and prevent the volatilization of the nut's fragrance and the deterioration of the oil. The material of the vacuum packaging bag will be relatively softer to allow the nuts to fit perfectly. 3. Inflatable packaging (also plastic soft packaging): Nitrogen is an inert gas that can prevent the oxidative deterioration of nuts. Therefore, it is required that such inflated packaging bags have better gas barrier properties. 2. Commonly used nut edible packaging bag materials 1. Kraft paper/Al/LDPE, OPP/VMPET/PE, paper/VMPET/PE: commonly used in the packaging of melon seeds. 2. PA/PE, KPA/PE: often used in the packaging of butter peanuts. 3. Paper/PE, paper/VMPET/PE, OPP/VMPET/PE, PET/VMPET/PE: often used in the packaging of nuts with small particles such as pistachios. 4. KPET/PE: It has good oil resistance and moisture resistance, and is used for packaging nut foods with high fat content. 5. KPET/CPP (or PE): KPET is a BOPET single-sided coated film, suitable for peanuts, dried fruits and other packaging composite films.
However, with the increased prevalence of flexible packaging, it has become far more affordable.
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flexible packaging can be applied in different ways as flexible packaging solutions.