Printing Glossary - Letter D

D.T cover means An extra stiff sheet made by laminating papers (usually two) that are thick. It concerns the properties or grades of the paper stock.

Damp Streaks is Refers to the creation of streaks usually through the process of the manufacturing of paper. It concerns the properties or grades of the paper stock.

Dampeners: A lithography process which involves the use of parchment paper or cloth covering. It is usually used in the distribution of the dampening effect on the plate. It concerns the properties or grades of the paper stock. Selection affects stiffness, opacity, and printability.

Dampening is Different types of etches, water and gum buffer acid used to protect the spots where there are no images in a lithography process from moisture and ink. Also known as a fountain solution. It affects drying, adhesion, and print appearance. Formulation choices influence drying time and rub resistance.

Dandy Roll is A plain roll above the wet web of the paper used in creating a smoothing action at the top after passing through the roll. (2) A watermarking dandy roll consists of a structure which ones is covered by wire clothes with designs, figures or letters affixed to it. Designs are impressed into the paper when the wet paper went passes under the turning watermark, therefore, leaving a permanent watermark in the sheet. It concerns the properties or grades of the paper stock. Selection affects stiffness, opacity, and printability.

Within the trade, day-glo refers to A trade name given to papers and inks. These ink or papers would usually have pigments that are fluorescent in nature. It concerns the properties or grades of the paper stock.

De-Inking: The removal of ink, coatings, toners and other forms of fillers from a recovered paper in a process that is designed to be chlorine-free. It concerns the properties or grades of the paper stock. Selection affects stiffness, opacity, and printability.

Debossing means A process involving an image or print being depressed. It usually takes place on the paper. It concerns the properties or grades of the paper stock.

Deckle is It can usually be found on the paper machine (towards the wet end). Deckle rulers or straps used in preventing overflow of fiber. This usually takes place on the sides. It can also tell just how wide a paper would turn out the end of the day. It concerns the properties or grades of the paper stock. Selection affects stiffness, opacity, and printability.

Technically, deckle edge describes Paper with a feathered edge that is made when there is a flow of fiber. This would usually happen at the edges of the web. Intentionally created by a stream of water, a deckle edge is usually made for aesthetic purposes. It can also be made using an air jet. It concerns the properties or grades of the paper stock.

Technically, decurler describes An instrument used in removing paper curl. It is present on a sheerer or web press. It concerns the properties or grades of the paper stock.

In print practice, decurling means A station used for decurling. It is usually done on a web sheet of the press and be used for the removal of curls in the paper. It concerns the properties or grades of the paper stock.

Technically, delamination describes The separation of a paper’s surface into different layers. It concerns the properties or grades of the paper stock.

Within the trade, delivery refers to Where freshly printed sheets are stocked in spots marked out. They are usually kept here until it is time for them to be moved from the section meant for impression. It concerns the properties or grades of the paper stock. Selection affects stiffness, opacity, and printability.

Densitometer can be defined as An instrument used in analyzing the colored ink and its intensity. It is used the check the level of consistency of the ink throughout the process of press runs. It affects drying, adhesion, and print appearance. Formulation choices influence drying time and rub resistance.

In print practice, density means Relating to a papers stiffness, absorbency, and opacity to determine the paper’s weight as contrasted with its volume. It concerns the properties or grades of the paper stock.

Descender means Refers to letters that are lowercase. They usually expand once they are beneath the baseline. It is a standard concept in printing. Usage varies with process and material.

Die means Letters, designs and pattern cut in the metal used for embossing, stamping. Die-cutting is also another alternative. It is performed after printing to enhance function or look. Setup and materials determine the final effect.

Die-cutting means For cutting out paper or board, dies for the female and male help achieve that in any shape. It concerns the properties or grades of the paper stock.

Digester is A pressure vessel where cooking of the wood chips is done. It is done to aid the removal of undesirable particles and for the separation of fibers. It is equipment used for production or quality control. Calibration is essential for reliable results.

Dimensional Stability means The capability of sheets of paper to maintain the original dimension in production. It is also used in humid climates that are bad for papers. It concerns the properties or grades of the paper stock.

Dirt means Contrasting specks or matter that is alien that is unintentionally present in the paper. It concerns the properties or grades of the paper stock.

Dished is reflected on uneven paper ends. They can either be hallowed or concaved. It concerns the properties or grades of the paper stock.

Distributor refers to Companies which buy from paper mills and resale it to end consumers. They are also known as merchants and have protected territories and product lines. It concerns the properties or grades of the paper stock. Selection affects stiffness, opacity, and printability.

Divider: Used in the separation of specific areas of a bound book or a loose-leaf, a divider which could be sheets of indexes that are tabbed. It is a standard concept in printing. Usage varies with process and material.

Dot is A halftone printing press which has a single element. It is equipment used for production or quality control.

Dot Etching can be defined as Its main duty to correct values in the tones. It can either be colored engraved or lithographic works or white and black. It is a standard concept in printing. Usage varies with process and material.

Technically, dot slurring describes It refers to extensions or smears. It is usually present at edges of dots that are halftone. It is a print fault to be identified and avoided.

Dot Spread refers to A situation where the printing of halftone dots comes in a larger size than they are supposed to. It belongs to file preparation and imaging before printing.

Within the trade, dots, halftone. refers to Created with a halftone screen, They are subcategories of an area which has been printed. It belongs to file preparation and imaging before printing.

Double Burning refers to The creation of one image by combining films or images together. It is a standard concept in printing.

Double Thick Cover Stock is A combination of two sheets to form a cover stock that is laminated. It concerns the properties or grades of the paper stock.

Technically, double varnish describes Double applications of a varnished press. It affects drying, adhesion, and print appearance.

Doubling means Happens when pieces make contact with blanket twice (before and after impression points). Occurs in stamping when an impression (usually double) is faltered by a badly registered Second impression. It is equipment used for production or quality control. Calibration is essential for reliable results.

Doughnut shaped hickey refers to Defects in printing which occurs when a solid print area is surrounded by unprinted areas. It is a print fault to be identified and avoided.

Downtime refers to The period of stoppage of the machine when caused by a malfunction. It is a standard concept in printing.

Drag is A problem occurring in a register due to the enlargement of the dot towards the back of a sheet. It is a standard concept in printing. Usage varies with process and material.

Draw-down can be defined as The application of a thin film of ink or coating, by a blade onto a piece of paper. Also used to describe an ink chemists means of determining ink or coating. It concerns the properties or grades of the paper stock. Selection affects stiffness, opacity, and printability.

In print practice, drier means Substances used in the quick to dry ink that is on a paper. It concerns the properties or grades of the paper stock.

Within the trade, driers refers to A dry end part of a paper machine. Used in drying wet paper webs through heated rolls. It concerns the properties or grades of the paper stock.

Drilling — The penetration of piles of paper in a uniform manner using drills that are hollow and which work at higher drills. It concerns the properties or grades of the paper stock. Selection affects stiffness, opacity, and printability.

Drop-out commonly denotes When halftone is without dots on the screen. It can also apply in background or highlights. Also used to refer colors formed with ink that do a poor job forming an image with photographic plates or an optical reading device. It affects drying, adhesion, and print appearance. Formulation choices influence drying time and rub resistance.

Technically, dry back describes Change in ink color after drying. It affects drying, adhesion, and print appearance.

Dryer describes An oven which papers that have been printed go through before it is pushed out of the final unit of printing. It concerns the properties or grades of the paper stock.

In print practice, drying time means A particular period or duration that passes before the drying of the ink is completed. Once dried, it becomes free in terms of rub or tack. It affects drying, adhesion, and print appearance. Formulation choices influence drying time and rub resistance.

Dummy: A sequence of pages assembled in an exact manner, style or form, as desired for a piece of work that is finished. It is a standard concept in printing. Usage varies with process and material.

Duotone means Transforming a black and white original to a two-color halftone product. It belongs to file preparation and imaging before printing.

In print practice, duplex means A situation where the laminated paper has different colors. It concerns the properties or grades of the paper stock.