| Abrasive |
Rough material that causes scratches when rubbed against. |
| Biodegradable |
Property of matter that allows it to decompose |
| Blade Coater |
Most commonly used coating applicator in line with corrugator. Coating is flooded across web and the excess is removed with a rubber blade leaving a film |
| Blocking |
Term given to coated board that sticks together |
| Brightness |
Measure of the “whiteness” of paper |
| CFIA – Canadian Food Inspection Agency |
Canadian government department that regulates food safety, together with Health Canada |
| Coating |
Liquid substance applied to paper to functionally protect it or change the color of the paper |
| Coating Weight |
Amount of coating added to paper, typically measured in lbs per MSF or g/sq m |
| Coating Consumption |
Amount of coating used when producing an order |
| Cobb test |
Method used to measure the amount of water absorbed in paper over time, usually expressed as g/sq m over specified time (typically 2, 15 or 30 minutes) |
| Cold Set Adhesive |
Water based PVA “white’ glue. Liquid at room temperature |
| COF |
Coefficient of Friction expresses the resistance to sliding on the surface of a container. Often expressed as slide angle |
| Decorative Coating |
Color coatings including white |
| Dynes Test |
A procedure to test the critical surface tension of coated board that translates to whether the surface is printable |
| FD&C |
Food Drug and Cosmetic Act |
| FDA Approved |
A product that complies with the US Federal Food and Drugs Administration (FDA) regulations for use in or in contact with food |
| Freeze Thaw Stable |
Whether a liquid coating, once frozen, is stable again after thawing |
| Functional Coating |
A coating which performs a function other than color such as water or grease resistance |
| Gluable |
Term given to the ability to join two pieces of board or together with an adhesive |
| Hot Melt Gluable |
Ability to join two pieces of board with hot melt glue |
| Indicator Spray |
An aerosol spray that is used with a non-skid product to indicate its presence on corrugated board. |
| Keil Tape Test |
Test used to determine release properties of a coated surface. It measures the force to pull the tape free from surface. |
| MVTR |
“Moisture Vapor Transmission Rate” is a measure to show the quantity of water vapor that can pass through a coated substrate. Usually expressed in g/ m2 /24 hr or g/100 in2/24 hr under 90% relative humidity. |
| Non-scuff |
A coating that protects against scratching |
| Non-skid |
A coating that helps to increase slide angle so that stacked containers do not slide as easily as uncoated ones |
| Off-line Coated |
Process of pre-coating liner before it is shipped to a plant for corrugating. Same concept as pre-print |
| Oil Resistance |
Property of coating that helps block the absorption of oil into coated substrate |
| Pinholes |
Pin point sized areas on paper that are left uncoated |
| Printability |
Ability of a coating to accept flexo inks to dry without smearing. |
| Recyclable |
Ability of a product to be used more than once. |
| Release |
A non-stick property of a coating measured by a Keil Test |
| Repulpable |
Property of wood based products to allow it to be broken down in to pulp and remade into paper |
| Rod Coater |
A devise that uses wire wound rods to meter coating on to paper. Typically used in off-line and decorative coating operations |
| Sizing |
Chemicals added to paper to enhance its performance |
| Skin Packaging |
Transparent film affixing a product to substrate treated with Plastiseal |
| Sutherland Rub Test |
Method used to evaluate the amount of protection yielded by a non-scuff coating |
| 3M Kit Test |
Procedure used to measure the level of oil resistance that a coating imparts on a substrate, expressed in scale of 1 – 12. |
| Viscosity |
Property of liquid, its “thickness”. Often measured by Zahn or EZ cup. |
| Waterproof |
Ability to not absorb any water over an infinite amount of time. |
| Water Repellent |
Ability of a coating to “bead water” that is sprayed on the surface |
| Water Resistant |
Describes the ability of a coated substrate to retard the absorption of water over time |
| Wax White |
A decorative white coating that does not turn grey when cascade waxed |
| Wet Pounds |
Amount of liquid coating applied to paper, typically measured in wet lbs per MSF or wet g/sq m |
| Zahn Cup, EZ Cup |
A precisely machined container, with a small drain hole, that is filled with liquid and allowed to empty. The time it takes to drain determines the liquid’s viscosity |
