|
Glossary of Terms |
|
| P | |||
| Packaging: | The paper and board used for wrapping or packing goods. | ||
| Paper: | Homogenous sheet of felted cellulose fibers, bound together by interweaving and by the use of bonding agents and made in a variety of types. | ||
| Paperstock: | Water slurry of various pulp fibers, dyes, additives and chemicals pumped to the paper machine for formation into sheets. | ||
| Papeterie: | A high-grade, soft paper used for personal stationery. | ||
| Patent Coated: | Paperboard made and lined with white or colored fibers on a multi-cylinder machine, possessing a high-surface finish suitable for use in making cartons. | ||
| Perfect: | A term used to describe the binding process where the signatures of a book are held together by a flexible adhesive. | ||
| Perfecting Press: | A printing press that prints on both sides of the page in a single pass. | ||
| Picking: | Pulling out paper fibers from the paper surface during printing. It occurs when the pulling force (tack) of the ink is greater than the strength of the paper. | ||
| Pigment: | Insoluble mineral or organic powder used to coat or fill paper. Many pigments are mineral and inorganic compounds used in coating to give smooth surface and opacity. | ||
| Ply: | The number of pieces of paper that make up a multi-layered, pasted or multi-cylinder-formed paperboard. | ||
| Porosity: | A measurement of the ability of paper to allow fluids to pass through paper and paperboard, which is an important factor in ink penetration. | ||
| Preprint: | Linerboard that was printed and rewound prior to the manufacture of combined board. It's used to make corrugated boxes with high graphic quality. | ||
| Printability: | Ease with which paper can be printed to high-quality standards with the least amount of spoilage. | ||
| Prohibitive Materials: | As published by the Institute of Scrap Recycling Industries, Inc., any materials which by their presence in a packing of paper stock, in excess of the amount allowed, will make the packaging unusable as the grade specified. Additionally, this includes any materials that may be damaging to equipment. | ||
| Pulp: | Fibrous material produced by mechanically or chemically reducing woody plants to their component parts from which pulp, paper and paperboard sheets are formed after proper treatment. | ||
| Pulper: | A device composed of a cylindrical vat in which a rotor separates the fibers and suspends them in water. | ||
|
|
|
|
|
|