Paper

1. Paper

2. Paper Paper is a thin material mainly used for writing upon, printing upon, drawing or for packaging. It is produced by pressing together moist fibers, typically cellulose pulp derived from wood, rags or grasses, and drying them into flexible sheets. Paper is a versatile material with many uses. Whilst the most common is for writing and printing upon, it is also widely used as a packaging material, in many cleaning products, in a number of industrial and construction processes, and even as a food ingredient – particularly in Asian cultures. Paper, and the pulp papermaking process

3. Layout Paper Strong, heavyweight paper with a smooth finish and a degree of transparency that is used in advertising; also called tissue overlay. The layout paper is used as an overlay by the artist to trace accepted elements in the advertising copy. As new elements are approved or accepted, the artist retraces them onto new layout paper until eventually the layout is complete. In this way each new element can be changed without disturbing the other elements.

4. Bleedproof Paper Bleedproof paper is a thick sheet of paper that when drawn on with markers or Sharpies the ink will not pass trough to the other side. It is a strong sheet of paper that is used in design processes and when drawn on, the line will appear crisper on the opposite side of the page.

5. Photo Quality Cartridge & Watercolour Paper Cartridge paper is a high quality type of heavy paper used for illustration and drawing. Paper of this type was originally used for making paper cartridges for firearms. A special drawing paper with a surface texture suitable to accept watercolors; the better grades can withstand the harsh scraping that is sometimes necessary to produce highlights; for permanent painting, the paper should be 100% rag, not wood pulp.

6. Design Drawings A technical illustration of something conceptualized but not completed, often a line drawing done with more precision than a sketch.

7. Paper Processes’

8. Opacity In papermaking, opacity is a property of paper that describes the amount of light which is transmitted through it. Paper that has a high degree of opacity does not let much light pass through it, while paper that has a low degree of opacity is more translucent, or allows much light to pass through it. A paper's opacity determines the extent to which printing on a particular side of paper will be visible from the reverse side (called show-through) Cellulose fibres are the basic foundation to making paper, piling these upon each other causes the paper to thicken as well as adding fillers such as clay, titanium oxide, calcium carbonate, this increses the papers opacity.

9. Optical Brighteners Optical brighteners are additives that paper manufacturers put into paper in order to help a paper look "whiter." They are also called optical brightening agents (OBA), or sometimes "artificial whiteners.” In order to make paper appear brighter, it is common for most paper manufacturers to add certain chemicals to the paper which can take invisible ultraviolet light and cause it to re-emit in the blue spectrum - or fluoresce - at a point that is just barely within our ability to see.

10. Tensile Strength Tensile strength is indicative of fiber strength, fiber bonding and fiber length. Tensile strength can be used as a potential indicator of resistance to web breaking during printing or converting. Z Direction Tensile Strength: Or internal bond strength provides an indication of strength of board in relation to glue bonding at carton side seams and possible Delamination on scoring, or use of high tack coating.