| Dandy Roll | | In papermaking, a wire cylinder on paper making machines that makes wove or laid effects on the texture, as well as the watermark itself. Used in the manufacture of better grades of business and book papers. |
| Deboss | | Condition in which the image is depressed below the normal surface of the label stock. Positive printing generally has a debossed effect. |
| Degradation | | The deterioration of a film over time, which is evidenced by cracking, chalking, blistering, color fading, etc. |
| Delamination | | The separation of a material into layers, in a direction approximately parallel to the surface. For instance, a facestock separating from the liner during processing. |
| Destaticization | | Treating plastic materials to minimize their accumulation of static electricity. |
| Deterioration | | Undesired change in properties of an adhesive caused by aging, weathering, etc. |
| Die | | Any of a variety of tools or devices used for cutting material to a desired shape. |
| Die Cut | | The line of severance between a pressure-sensitive label and its matrix or adjoining label made by the cutting edge of a die. |
| Die Cut Label | | Pressure-sensitive labels mounted on a release liner from which the matrix has been removed. |
| Die Load Monitors | | Gauges that indicate the amount of pressure exerted on rotary dies. |
| Dimensional Stability | | The property of a material which relates to the degree of its growth or shrinkage under various environmental conditions. |
| Direct Thermal | | A specialized printing technology using rapidly heated pins that selectively activate a heat sensitive coating applied to the facestock thus forming the desired image. |
| Doctor Blade | | An adjustable knife-like bar which controls the amount of adhesive on the glue wheel. |
| Dot | | The individual element of a halftone. |
| Double-Sided | | A double coated tape incorporated with two release liners. |
| Double Coated | | A pressure-sensitive product consisting of a carrier material with similar or dissimilar adhesives applied to the two surfaces. |
| Dry Back | | A non-blocking adhesive which has been precoated on an adherent and is ready for bonding by solvent reactivation at anytime. |
| Dry Seal Adhesive | | One which is non-blocking except to itself. Two adherents may be precoated, dried then bonded at any time using only nominal pressure. |
| Dry Tag | | A 9 pt. uncoated tag facestock designed to separate from a liner with no functional adhesive on the tag. Typical uses are clothing tags, temporary I.D. cards, and hang tags. |
| Dryers | | Steam-heated cylinders over which paper in the web is passed to be dried. |
| DT | | Direct Thermal |
| DTC | | Digitally Topcoated |
| Dwell | | The time during which a PS material remains on a surface before testing for permanence or removability |
| Dyes | | Synthetic or natural organic chemicals that are soluble in most common solvents. Characterized by good transparency, high tinctorial strength and low specific gravity. |