search the glossary

The movement of one or more of the components of a pressure-sensitive adhesive to either a substrate or face material; the movement of one or more of the components of either or both the face material and the substrate into the adhesive and ink. The movement, over a long period of time, of an ingredient from one component to another when the two are in surface contact. May occur between tape components or between a tape and the surface to which it is applied. Some plastic films and foams contain plasticizers which are apt to migrate into the tape adhesive, causing the adhesive to soften.

A measure of thickness used in describing film,adhesive, or other coating thickness. The term means thousandths of an inch.

A Petroleum distillate commonly used as a paint thinner and mild solvent- can be used for cleaning/degreasing machine tolls and parts.

The lowest temperature at which an adhesive will function.

Percent moisture. The moisture present in a material, as determined by specified methods.

That property of a sheet which resists uptake or passage of moisture. Usually achieved by adding sizing.

Non-uniform coloring, coating or printing of a face material.

A pressure sensitive adhesive containing one or more elastomers combined with resins and other components that impart tack, adhesion, and other necessary properties.

Applied to papers whose colors result from the nature of the stock used when no bleach or coloring has been added. In the case of kraft, its natural color is a tan or light brown.