| Edge Curl | | The peeling back of lifting of the outer edge of a tape which has been applied in a curve. |
| Edge Lift | | The tendency of the edge of a label to rise off the surface of the substrate. This condition occurs most frequently on small diameter curved surfaces. Resistance to edge life is dependent on the bond strength of the adhesive and the flexibility of the facestock. |
| Edge Ooze | | Uneven adhesive residue around label perimeter |
| EDM | | Electronic Discharge Medium. An electronic discharge method of manufacturing rotary dies. |
| EDP | | Electronic Data Processing |
| Elastomer | | Generally a rubber-like substance which is easily deformed by a force but returns to its original shape. Elastomers are the basis of most pressure-sensitive adhesives. |
| Electronic Data Processing | | Data processing by electronic equipment. Pressure sensitive labels produced for imprinting on this equipment incorporate line hole punching and perforations. |
| Electrostatic Printing | | The property of a material which relates to the degree of its growth or shrinkage. |
| Elongation | | The increase in length of a material produced by extending it to the point of rupture. |
| Embossed Finish | | Paper with a raised or depressed surface resembling wood, cloth, leather or other pattern. |
| Embossing | | Impressing an image in relief to achieve a raised surface; either overprinting or on blank paper (called blind embossing). |
| Emulsion | | A dispersion of fine particles or globules of a liquid in liquid normally incompatible with it. |
| Emulsion Adhesive | | A dispersion of the fine particles or globules in another liquid. Many PS adhesives are emulsion systems. |
| Ethylene Oxide Gas | | A widely used sterilization process utilizing either pure Ethylene Oxide gas or a combination with an inert gas such as carbon dioxide or Freon. Sterilization is done in a sealed chamber where a vacuum is drawn. |
| Exposure Temperature | | The temperature that a labeled product is exposed to. |
| Extrude | | To expel or force through a measured orifice to apply a molten thermoplastic adhesive onto a web. |