What is Press and Seal Made Of?
Press and Seal packaging is a popular choice for food preservation and on-the-go snacks due to its convenience and effectiveness. But what exactly is Press and Seal made of? This article delves into the composition of this versatile packaging material to provide a better understanding of its features and benefits.
The primary material used in Press and Seal packaging is a combination of polyethylene and ethylene vinyl alcohol (EVOH). Polyethylene is a common plastic used in various packaging applications due to its flexibility, strength, and resistance to moisture and oxygen. It forms the outer layer of the packaging, providing a barrier against external elements.
EVOH, on the other hand, is a semi-permeable plastic that allows for the controlled exchange of gases. It is integrated into the polyethylene layer to create a barrier against oxygen, which can lead to spoilage and the development of bacteria. This barrier helps to extend the shelf life of the packaged food items.
The unique structure of Press and Seal packaging allows for the creation of an airtight seal when the packaging is pressed. This is achieved through the use of a heat-sealable layer, which is typically made of aluminum or a combination of aluminum and plastic. The heat-sealable layer is sandwiched between the polyethylene and EVOH layers, enabling the packaging to be sealed securely.
The combination of these materials makes Press and Seal packaging versatile and suitable for a wide range of food items. It is commonly used for packaging sandwiches, salads, fruits, vegetables, and other perishable goods. The packaging is also microwave-safe, making it convenient for reheating leftovers.
In addition to its practical benefits, Press and Seal packaging is also environmentally friendly. The materials used are recyclable, and the packaging itself is designed to be lightweight, reducing the carbon footprint associated with transportation.
In conclusion, Press and Seal packaging is made of a combination of polyethylene, EVOH, and a heat-sealable layer, which provides an effective barrier against moisture, oxygen, and contaminants. This innovative packaging solution offers convenience, extended shelf life, and environmental benefits, making it a popular choice for food preservation and on-the-go snacks.
