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 North America's #1 Resource for Paper Grade and Company InformationThursday, March 28, 2024  
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E.C.H. Will Sheeter
Continuous automatic cut-size sheeter, ream wrapper and labeler, ream accumular, case packer, lidder, bander and palletizer.
E.F.
English Finish: A finish between machine finished and supercalendered.
ECF
Elemental chlorine free: Paper made from a bleaching process that uses chlorine dioxide typically in combination with oxygen, hydrogen peroxide and sodium hydroxide. The bleaching sequence can also, though less common, incorporate ozone. ECF bleaching does not use chlorine gas.
edge bleed
Coloration at edge of sheets traceable to pressure generated by the cutting block and knife blade in the cutting operation. Also, bleed occurring in spirit carbon paper which has been supercoated for cleanliness when the stock is trimmed or slit.
edge protectors
Heavy board used to protect the ends of rolls during shipment and storing.
eggshell finish
A relatively rough finish. Usually refers to book grades of paper that have a finish similar to the surface of an egg. A special felt is used to mark the surface before the paper is dried.
electronic color scanner
High speed computer which instantly calculates the necessary color correction by measuring the original copy.
electronic graphic technologies
Laser facsimile fiber optics, satellites and computers.
electrophotography
An image transfer system used in copiers to produce images using electrostatic forces. Electrofax uses zinc oxide coated paper. Xerography uses a selenium surface. Paper is plain bond.
electrostatic copying
Process using an intermediary plate or drum (like Xerography) or coated take-off sheet (like Electrofax) which is electrically charged to attract powder or liquid developer only to the image area.
electrotyping
Duplicating type and engravings by electrolysis.
Elmendorf Test
A test to determine a paper's resistance to tearing.
em space
Square of a type body. So named because the letter M in early fonts was cast on a square body.
embossed finish
A finish imparted to a web of paper through an embossing machine. The embower operates on the same principle as a supercalender except that it has an upper steel roll with a pattern engraved on it and is designed to be steam heated. The surface of this roll may be chromium plated for resistance to corrosion and wear. The bottom roll, whose diameter is customarily twice that of the upper roll, consists of a soft material like cotton or paper. It serves as a backing roll for the paper web which receives that pattern off the engraved roll. Before paper is embossed, the hard engraved roll is rotated for some time against the soft backing roll under pressure, thereby creating a mat surface in the latter roll. After the paper passes through the embosser it receives a finish on both sides. Many engraved designs are used to obtain a variety of finishes.
embossing
Process that stamps a design in the paper using a metal die to raise the surface of the stock.
en space
Half the square of a type body.
enamel
Glossy, shiny surfaced, coated paper.
enameled
Can describe any coated paper.
end-leaf paper
Strong, fine quality paper, either plain or coated and sometimes colored or marbled, used for binding a book's contents to its cover.
English finish
A finish between machine finished and supercalendered. Low gloss, uncoated finish of paper adapted to type and 100-line halftone screens.
English opacity book
Paper used in books and catalogs when a lightweight paper of great opacity is required. Usually free from mechanical pulp and made from chemical wood pulp and fillers, it ensures maximum opacity. Paper has smooth machine or English finish. Basic size 25" x 38". Basis weight 25 to 45 lb.
engraving
Printing by the intaglio process. Ink is applied to the paper under extreme pressure resulting in a printing surface being raised. Uses include fine letterheads and wedding invitations.
envelope lining paper
Tissue that decorates and lines matching envelopes of fine stationery papers. Basic size: 24" x 36". Basis weight: 10 to 15 lb.
equilibrium
State of balance.
erasability
Characteristic of paper that assures for a clean erasure. Achieved by excessive pulp refining resulting in firmly bonded fibers and a hard surface.
etch, etching
Non-image area of offset printing plates are etched to be water-receptive and ink-repellent. Mordant etches dissolve the plate's surface by about 0.0003 in depth in the image areas.
expansivity
The degree to which paper changes its dimensions for a given change in relative humidity.
exposing
To expose to the action of light in a printing frame or photo composing machine or to expose photographic film in a camera.
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