Approximately one third of the tree is lignin. When unfolded it looks like the folds of an accordion. It can be folded to show how the finished printed product will look. Wet strength papers range in weight from tissue to paperboard. Relative humidity is the percent of moisture relative to the actual amount which air at any given temperature can retain without precipitation.
In the premium paper market all of the fiber is lignin free. Decrease in the dimensions of a sheet of paper or loss incurred in weight between the amount of pulp used and paper produced. A high quality heavy weight paper, sometimes made with cotton fiber prepared or glued together, usually with a caliper thickness of 0 Buy now Paper Mill Terms
Printed pieces cut into irregular shapes, or with cut out holes (like an envelope window). A popular method of sewing the signatures of a book together by stitching all the sheets at one time, either through the center of the inserted sheets or side-stitched from front to back. Screens from which letterpress halftones of photographs are made range from 60 lines-per-inch for printing on newsprint to 150 lines for printing on coated paper. Used in tabular work, programs, tables of contents, etc also known as relief typographic printing, letterpress printing employs the use of type or designs cast or engraved in relief (raised) on a variety of surfaces which can include metal, rubber, and wood Paper Mill Terms Buy now
The thickness of paper expressed in thousandths of an inch. The margins as designated in book specifications refer to the remaining margins after the book has been trimmed. Papers manufactured with chemical pulp are called free-sheet papers. The lightest or whitest parts in a photograph represented in a halftone reproduction by the smallest dots or the absence of all dots. Epa requires post consumer content in recycled papers purchased by federal agencies.
A pigment (kaolin type material) used as a filler (for opacity or smoothness) in the making of paper, or in the paper coating. Terms used to indicate the manufactured specifications of a paper. Opposite of felt side, this is the side of the paper that was against the wire during manufacture Buy Paper Mill Terms at a discount
A transparent, acetate printing proof used to reproduce anticipated print colors on a transparent acetate sheet. Also, accessory sheets between parts in a form. In printing, halftone with no screen dots in the highlights or background. In color separation photography, an intermediate photographic negative or positive used in color correction. In lithography, a solution of water, a natural or synthetic gum and other chemicals used to dampen the plate and keep non-printing areas from accepting ink.
Both virgin and recycled sheets have dirt, although recycled paper has significantly higher dirt counts. Act of loosening the fibrillae during the mechanical process of beating the fibers in preparation for papermaking Buy Online Paper Mill Terms
Used for fine letterheads, wedding invitations, etc. It is made from cotton cuttings and linters. A fold or folding device which accomplishes a fold in a sheet or signature. The individual subdivisions of a printed surface created with a halftone screen. Pulp obtained by digesting wood with solutions of various chemicals.
Pasted grades are those grades of paper or paperboard made up of layers pasted together. Often other substances like thin sheets of metal, plastic, etcare fused to paper. An imposition which requires that pages be laid out with the top of a page (head) positioned across the from the bottom (tail) of the page opposite on the form. Initial impression of a page pulled for checking purposes before the entire job is run Buy Paper Mill Terms Online at a discount
To improve trapping and reduce ink costs in the process color web printing, color separation films are reduced in color in areas where all three colors overprint and the black film is increased an equivalent amount in these areas. Stretch resistance is measured on tensile testing instruments. An all-over color tint on the press sheet in the nonimage area of the sheet, caused by ink pigment dissolving in the dampening solution. Usually used to designate 1,000 sheets or two reams of fine paper. Amount of pull applied in direction of the travel of a web of paper by the action of a web-fed press.
A popular method of sewing the signatures of a book together by stitching all the sheets at one time, either through the center of the inserted sheets or side-stitched from front to back Paper Mill Terms For Sale
Indirect rotary presses (sheet-fed offset presses) combine a plate cylinder, a blanket cylinder and an impression cylinder. Pulps made from this type of tree give cellulose paper making fibers that are long, thus long fiber pulp. Continuous multiple ply form manufactured from a single wide web which is folded longitudinally. An area of a blanket that is no longer firm and resilient, and that gives a light impression in the center of a well printed area. Pressing a design onto a book cover using metal foil, colored foil, or ink, applied with metal dies.
The flatness of a sheet of paper, which generally determines the crispness of the image printed upon it. The application (by a blade or a bar) of a thin film of coating or ink to a piece of paper For Sale Paper Mill Terms
Deliberately produced for aesthetic purposes, a deckle edge is found especially on formal stationery and announcements. On a paper making machine the equipment that helps remove excess water from the moving web of paper prior to the wet press section of a paper machine. Paper that is made to be printed in a continuous manner from a roll. Wastepaper generated from offices, such as letters, memos, invoices, etc. A page that exceeds the dimensions of a single page.
Often other substances like thin sheets of metal, plastic, etcare fused to paper. A squeegee drawn across the screen forces ink through the open image areas which are cut-out by hand using lacquered tissue prior to its adherence to the silk Sale Paper Mill Terms