| Dye Based Ink |
| | [Eng] Any ink that acquires its color by the use of aniline pigments or dyes.
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| Dutch |
| | [Eng] Any deckle edged paper, originally produced in the Netherlands.
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| Durability |
| | [Eng] The degree to which paper retains its original qualities.
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| Duplicator |
| | [Eng] A machine for making copies with the aid of a specially prepared duplicating master.
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| Duplicating Stencil Paper |
| | [Eng] A thin, strong, lightweight paper made from long-fibred stock, suitably impregnated or coated such as with oil. This paper is used for preparation of Stencil.
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| Duplexed |
| | [Eng] When paper is printed on both sides of the sheet.
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| Duplex Cutting |
| | [Eng] The process of converting a web of paper into sheets on a cutting machine so that two different lengths of sheet can be cut at the same time.
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| Duplex Coating |
| | [Eng] The process of coating both sides of a paper sheet at the same time.
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| Duotone |
| | [Eng] A two-color halftone reproduction generated from a one-color photo.
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| Dummy |
| | [Eng] A page or a set of pages assembled in the exact position, form and style desired for the finished piece of printed work. Used as a model or sample for the printer.
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| Dull Finish |
| | [Eng] Paper is said to be dull coated or matte finish when it registers a gloss test reading of less than 55%. Dull coated papers have a smooth surface a low gloss. Dull coated paper is also known as dull finish paper.
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| Dull Coated |
| | [Eng] Paper is said to be dull coated when it registers a gloss test reading of less than 55%. Characteristically, dull coated or finished paper has a smooth surface and is low in gloss. Dull coated paper is also known as dull finish paper.
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| Ductor Roller |
| | [Eng] The roller between the inking and the dampening rollers.
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| Dual Distributor, Dual House, or Dual Merchant |
| | [Eng] A paper distribution firm, which deals in fine and industrial papers.
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| Drying Loft |
| | [Eng] A large airy room in which sheets of handmade paper are hung or laid to dry.
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| Dryers |
| | [Eng] A series of large cylindrical steam-heated rolls that dry the paper web.
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| Dry-end |
| | [Eng] The part of a paper making machine where the paper passes through steam-heated drying cylinders. The dry end can also consist of calenders, cutters, slitter, and reels.
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| Dry Offset |
| | [Eng] A method of printing from a relief plate without the use of any fountain solution.
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| Dry Finish |
| | [Eng] Paper and paperboard get a dry finish when calendered without the use of water.
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| Dry Cylinder Machine |
| | [Eng] In a dry cylinder machine, pulp is poured onto the surface of the cylinder and the water drains away through the cover on the cylinder.
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| Dry Creping |
| | [Eng] Creping of a paper web when it's dry.
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| Drumhead Manila |
| | [Eng] A type of rope papers. Usually available in 24" x 36" size.
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| Drop Out |
| | [Eng] In printing, halftone with no screen dots in the highlights or background.
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| Drill |
| | [Eng] The actual drilling of holes into paper for ring or comb binding.
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| Drier |
| | [Eng] A term that describes additives to ink which speed up the drying process.
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| Draw-Down |
| | [Eng] A method used by ink makers to determine the color, quality, and tone of ink. The method involves an application of a thin film of ink using a spatula or blade to measure the ink's color shade and characteristics.
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| Drainage Foils |
| | [Eng] Drainage foils are tapered foils placed under the wire at a slight angle so that when the wire runs over them at high speeds, suction is created and the water from the wet stock is separated efficiently.
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| Drain |
| | [Eng] Volume of wood removed from the forest in a given time.
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| Downtime |
| | [Eng] When a paper machine is stopped for repairs, it is referred as 'down'. Downtime can occur due to mechanical failure, change of grades in production etc.
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| Doubling |
| | [Eng] The unintentional printing of two images slightly out of register.
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| Double Wall Corrugated Board |
| | [Eng] A type of corrugated board, which has two layers of fluting and three facings.
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| Double Sizing |
| | [Eng] The process of applying size a second time after first sizing has been dried.
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| Double Imprint Unit |
| | [Eng] Two sets of printing cylinders that permit imprint to be altered as press continues to run at full speed.
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| Double Fold |
| | [Eng] Resistance of paper to repeated folding/unfolding. Folding endurance is important for currency, blue print, record papers, ledger, map etc where resistance against repeated folding/unfolding is required.
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| Double Deckle |
| | [Eng] Machine-made papers having a deckle edge on two edges of the sheet.
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| Double Coated |
| | [Eng] A sheet that has been coated twice on the same side. Not to be confused with a paper sheet coated on both sides.
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| Double Cap |
| | [Eng] Trade term for size 17" x 28" available in business papers.
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| Double Calendered |
| | [Eng] A type of paper passed through two calenders.
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| Dots Per Inch (DPI) |
| | [Eng] A reference for the resolution of a printed or screened image. Higher numbers mean higher resolution or more dots composing an image.
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| Dot Matrix Printing |
| | [Eng] Impact printing where each character is made up of a pattern of dots synchronized by computer control. During printing the print head strikes against a ribbon to print on the paper surface.
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| Dot Gain |
| | [Eng] A printing problem where dots print larger than desired, creating darker tones, or color imbalances.
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| Dog Ear |
| | [Eng] A small fold that occurs on the corner of the paper during the papermaking or converting process.
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| Doctor |
| | [Eng] A blade-like device, which scrapes off excess liquid or fibers off a roller to help maintain a smooth surface.
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| Distributor |
| | [Eng] A company, which purchases paper from a paper mill for resale to end-users.
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| Distribution Rollers |
| | [Eng] In the printing process, the rubber coated rollers responsible for the distribution of ink from the fountain to the ink drum.
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| Display Type |
| | [Eng] Any type that stands out from the rest of the type on a page, which attracts attention of the reader.
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| Display Board |
| | [Eng] Paperboard used for display advertising.
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| Disperging |
| | [Eng] Disperging is used in the treatment of recycled fibers. It reduces impurities in recycled paper to such a small size that they are no longer detrimental to paper quality.
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| Dished |
| | [Eng] A pile or stack of paper lying concave rather than flat.
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| Disc Refiner |
| | [Eng] A machine, which uses rotating discs or plates for refining pulp during the stock preparation process.
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