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    paper finishing

    Paper Finishes

    Chromo paper
    A paper which is coated and then supercalendered (polished) on one side
    only. Used for greetings cards and label stock.
    Cast-coated paper
    A paper which is coated in the conventional way but with the coating dried
    by passing the wet-coated web around a highly polished drying cylinder.
    This form of coating gives an improved gloss finish to the surface of the
    web. A variant of this process is known as Trulux, which uses a calendering
    process in which the soft coating is encouraged to flow under pressure and
    heat.
    Kraft (bleached or unbleached)
    Produced from sulphate woodpulp, it is the strongest of all papers. Used
    mainly for wrappings but kraft pulp can be added to other furnishes to
    increase strength.
    Hand-made paper
    Furnish is usually cotton, in the form of rags or cotton linters. Hand-made
    paper has good dimensional stability, random fibre orientation and good
    permanence and durability. It is extremely expensive to make, so is
    mostly used by artists for watercolour painting or for other specialist jobs.
    Carbonless paper
    Produces copies when writing pressure is applied to the top sheet of a set.
    The set is made with special coatings on the appropriate sides of the
    sheets. Coated front (CF) is a receptive clay, while coated back (CB) contains
    microcapsules which break under writing pressure, releasing a
    colour former which reacts with the clay to form an image where the two
    coatings are in contact. Used for delivery notes, invoices, order forms etc.
    Heat-sealable paper
    Uses a coating of heat-activated adhesive. Activation can either be instantaneous
    or delayed (useful where direct heat may damage the surface or
    product). Used for labels etc.
    Pressure-sealable paper
    Uses a special polymer coating which is printable but bonds under pressure.
    Used for mailers.
    Self-adhesive paper
    Applied to a silicone-coated backing sheet from which the permanently
    sticky paper can be peeled off when ready for contact application.
    Machine-finished (MF)
    A paper which has been dried in contact with the drying cylinders on the
    papermaking machine to create smoothness and uniformity on both sides.
    Matt-coated
    The base paper is coated with a coating mix which usually contains a mixture
    of latex/starch and ground calcium carbonate/china clay. The best mattcoated
    papers give a smooth non-reflective surface with low abrasivity and
    good ink hold-out. Typical descriptions are velvet, silk or matt art.
    Gloss-coated
    Paper which has received this type of finish is also known as gloss art
    paper. The coating is applied, then the web is passed between two rollers,
    one highly polished steel, the other fibre packed. This gives the paper a
    very smooth surface with a high-gloss finish. Most high-quality art papers
    are coated at least once and sometimes three times on each side.
    Machine-glazed (MG)
    A paper which has been dried against a highly polished drying cylinder
    known as a MG cylinder. This gives one side of the paper a smooth,
    glossy appearance while the other remains relatively rough.

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