Glossary

Antiblock
Routinely added to film and bags to keep the sheets from sticking together.

Anti-Stat
Contains an anti-static additive that dissipates static electrical charges. Good for short-term storage.

Bags on a Roll
Continuous roll of tubing perforated under bottom seal. Bags must be torn off to open.

Barrier Film
Specially formulated film typically used to extend the shelf life of food products. Prevents transmission of moisture and gases.

Blown Film
The most common method of producing film and bags. Resin is melted in the extrusion process and blown vertically into a bubble to cool.

Bottom Seal Bags
Individually cut bags from seamless tubing, sealed on the bottom. Flat or side gusseted bags with a strong seal – usually have a tail.

Cast Film
Extruded in sheet form through a slotted die.

Doorknob Bags
Side-weld bag, staple-packed with perforated lip and hole just below the top of the bag.

EVA
Ethylene Vinyl Acetate. Additive that strengthens and improves sealability. Appropriate for use in cold-temperature applications.

Faraday Cage
Provides both interior and exterior protection from static and other charges.

Flap Lock
Bag has lip folded back with side seals. Commonly known as a sandwich bag.

Flat Bags
Two-dimensional bag (width x length) with bottom and/or side seals.

Flexographic Print
Print that is solid colored - also known as line art. Each color requires a separate plate to print a solid color.

Fractional Melt
A resin additive used to increase the tensile strength, impact strength, abrasion resistance, and tear properties of poly bags and films.

Gauge
The thickness of material. The higher the gauge, the thicker the material. (1/1000 inch = 100 gauge)

Gusseted Bags
Flat style bag with both sides or bottom tucked in to form gussets. Designated with three dimensions; Side Gusset (width x depth x length) or Bottom Gusset (width x length + gusset).

Header Bags
Side-weld bag with continuous seal along top, 2"-3" below fold. Bag is loaded and sealed from the bottom and typically has a hang hole.

High Density Polyethylene
Strong, but lightweight plastic film with gas, vapor, and moisture barrier properties.

Hot Stamp Printing
Thermal bonding process that results in the permanent adhesion of the print to the bag.

Linear Low Density Polyethylene
Highly puncture and tear resistant plastic film.

Lip
One side of the bag is longer than the other; allows bag to open easily.

Low Density Polyethylene
The most common type of plastic film used for bags because of its versatility, strength, and resistance to punctures and tears.

Metallocene
Extremely lightweight, flexible and highly stretchable plastic film with excellent puncture and tear resistance.

Microns
The thickness of material. The higher the microns, the stronger the material. (1/1000 inch = 25.4 microns)

Mil
The thickness of material. The higher the mil, the stronger the material. (1/1000 inch = 1 mil)

Natural Kraft
Unbleached paper in its natural form - brown in color.

Polypropylene
High clarity and lightweight plastic film with vapor and moisture barriers to preserve food freshness.

Process Print
Colors are reproduced by printing overlapping dots of cyan, magenta, yellow, and black (CMYK) inks to simulate a large number of different colors.

Random Print
A repeating print that appears in full on a bag at least once. A partial print may be visible on either side of the full print.

Reclosable Bags
Seal-top reclosable and reusable bags can be made with or without a tamper-evident adhesive seal. Also includes zipper and slider zipper bags.

Registered Print
The print shows up in the same spot on every bag in a production run.

Side Weld
Bags are sealed on the side. No bottom seal.

Slip
Additive that helps prevent bags from sticking to each other and promotes easy insertion of packaged goods.

Star Seal
Strongest bottom seal for liners that combines four sections in a star design. Seal maximizes carrying capacity.

Static Shielding
Four layer construction providing Faraday Cage protection. Offers greater protection than anti-static.

Tubular Bags
Bags with no side seals or slit seals that are usually bottom sealed and have a tail.

UVI
Ultra Violet Inhibitor. Additive diminishes the effect of sunlight breaking up the film and extends film life in sunlight conditions.

Wicketed Bags
Tear-off bags held in place by a metal wicket on the lip of the bag.



Please don't hesitate to call our Customer Service Department at 800-926-6100, or email: customerservice@associatedbag.com for further information.
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