barrier films for food packaging
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Your Packaging Matters People!
Barrier Films & Laminations for Food Packaging
Deciding on the barrier film for your packaging application can be a complicated process. There are many variables to consider in order to best preserve your packaged product.
Established in 1968 Pyramid Packaging is a value-added, and ISO 9001 compliant supplier of packaging films.
Pyramid Packaging can help you select which of the
following types of film barriers are required for your
packaging application.
Advantages of film barriers•UV protection•prevents oxygen transfers•prevents odors•enhances moisture barrier properties •enhances gas barrier properties
Oxygen Transfer Rate is used to measure the amount of oxygen that passes through a film. The lower the number, the better the film barrier.
Foil (aluminum) backings offer the best best barrier protection with an OTR of
0. Foil is often used in candy wrappers, and to
preserve chocolate.
EVOH (ethylene vinyl alcohol) barrier films have a excellent OTR at .6 cc/m²). EVOH barriers are often used to package meat, fish & poultry related products.
MPET when OPP/BOPP films are laminated with
metal foil (MET) it will increase the film’s oxygen & water barrier & block out UV
rays. Because of the film’s stiffness, its used as a wrap for hard candies, chocolates
& is resistant to heat and moisture.
KPET is a soft saran coated PET film with good transparency. It is used as a substrate to laminate with other films. KPET has excellent gas, moisture and vapor properties making suitable for packaging of dry goods and protecting fragrant related items.
PET (polyester) is very good oxygen barrier, heat resistant & strong film with good durability. PET film is an excellent
laminating substrate for stand-up pouches. When PET films are laminated with metal foil it will increase the film’s oxygen- water
barrier & block out UV rays. Metallized films for flexible packaging are essential
when the product requires extra protection to ensure a longer shelf life MET PET provides protective properties for food
items requiring restricted visibility.
Nylon films have a high melting point and are used
for cooking applications such as boiling, microwaving
& baking. They have very good clarity & moisture
barriers & considered a very strong film.
Polypropylene is soft, clear glossy film with good moisture barriers &
high oxygen transfer rates. They are often used
for plastic food bags.
LLDPEbarrier films are inexpensive and have
good clarity. They are used to package fresh, produce, frozen foods & baked
goods.
Because of their high OTR of 2500, they work well when the package requires
oxygen.
Commonly Used Food Packaging Terms
Barrier Level: a films ability to prevent moisture from penetrating the film itself
Clarity: the measurement of a film’s transparency
Converting: process of cutting a plastic film it into lengths, bond the edges, resulting in plastic bags
Film Gauge: film thickness measured in mils
Laminated Films: Lamination (bonding together) of two or more films that improves the appearance, barrier properties
Metallized: applying a thin coating of metal to a nonmetallic surface by chemical deposition or by exposing the surface to vaporized metal in a vacuum chamber
Packaging Films: are melted plastic resin which are extruded into sheets or rolls
Sealability: bonding process between two layers of film
Est. in 1968, Pyramid Packaging is a
value-added supplier of flexible
packaging films, equipment & services.
We are a stocking supplier of flexible packaging films.
Service
We create value by working with clients who need help in selecting and customizing their packaging films.
Pyramid Packaging can customize your plastic packaging films & barriers according to your blend, size & graphic design.
By working with our packaging experts, we’ll
ensure you get the right barrier film for
your application while reducing
cost.
2901 Shermer Road Northbrook, Il 60062ph: [email protected] www.pyramidpackaging.com
Contact Pyramid Packaging