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  2. Paper density - Wikipedia

    en.wikipedia.org/wiki/Paper_density

    Weighing scale to determine paper weight. Paper density is a paper product's mass per unit volume.The density can be calculated by dividing the grammage of paper (in grams per square metre or "gsm") by its caliper (usually in micrometres, occasionally in mils).

  3. Grammage - Wikipedia

    en.wikipedia.org/wiki/Grammage

    In the metric system, the mass per unit area of all types of paper and paperboard is expressed in terms of grams per square metre (g/m 2).This quantity is commonly called grammage in both English and French, [2] though printers in most English-speaking countries still refer to the "weight" of paper.

  4. Paperboard - Wikipedia

    en.wikipedia.org/wiki/Paperboard

    Basis weight: in the US, it is the weight of 1,000 square feet (93 m 2) of the same paperboard; the traditional British definition is the weight, in pound, of 100 of the same board [10] Brightness: Brightness is a technical term that is defined as the amount of blue-white light that a paper reflects. [ 11 ]

  5. Corrugated fiberboard - Wikipedia

    en.wikipedia.org/wiki/Corrugated_fiberboard

    Corrugated fiberboard, corrugated cardboard, or corrugated is a type of packaging material consisting of a fluted corrugated sheet and one or two flat linerboards. [1] It is made on "flute lamination machines" or "corrugators" and is used for making corrugated boxes .

  6. Cardboard box - Wikipedia

    en.wikipedia.org/wiki/Cardboard_box

    Paperboard, sometimes known as cardboard, is generally thicker (usually over 0.25 mm or 10 points) than paper. According to ISO standards, paperboard is a paper with a basis weight (grammage) above 224 g/m 2, but there are exceptions. Paperboard can be single- or multi-ply.

  7. Card stock - Wikipedia

    en.wikipedia.org/wiki/Card_stock

    Most nations describe paper in terms of grammage—the weight in grams of one sheet of the paper measuring one square meter.. Other people, especially in the United States, describe paper in terms of pound weight—the weight in pounds per ream (500 sheets) of the paper with a given area (based on historical production sizes before trimming): for card stock, this is 20 by 26 in (508 by 660 mm ...

  8. Quality control system for paper, board and tissue machines

    en.wikipedia.org/wiki/Quality_control_system_for...

    Sensors measuring the paper quality (online meters) are attached to a sensor platform that move across the web guided by the scanner beam. A typical crossing time for a sensor platform is 10–30 s (an 8 m web, 60 cm/s). The sensor platform scans across the paper web and continuously measures paper characteristics from edge to edge.

  9. Paper - Wikipedia

    en.wikipedia.org/wiki/Paper

    Paper may be between 0.07 and 0.18 millimetres (0.0028 and 0.0071 in) thick. [20] Paper is often characterized by weight. In the United States, the weight is the weight of a ream (bundle of 500 sheets) of varying "basic sizes" before the paper is cut into the size it is sold to end customers.