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COLOUR MATERIALS USAGE GUIDE
Why Paper Doesn’t Always Work the Way it Should
Coated paper and offset
The high gloss papers used in magazines, brochures, and direct
mail have long been the choice of graphic designers and offset
press operators because the smooth, glossy finish has reflective
qualities which provide an optimum surface for photographs, colour
illustrations and text.
mail have long been the choice of graphic designers and offset
press operators because the smooth, glossy finish has reflective
qualities which provide an optimum surface for photographs, colour
illustrations and text.
Coated paper and xerography
Because many of today’s applications have moved from offset
printing to digital, users are beginning to demand fine printing
papers for their xerographic equipment. Although many offset
papers may be used in xerographic equipment, there are some
limitations to the performance of coated stocks with this technology.
Coating materials used in the manufacture of these papers impact
performance and reliability (i.e., smearing, blurring and flaking).
printing to digital, users are beginning to demand fine printing
papers for their xerographic equipment. Although many offset
papers may be used in xerographic equipment, there are some
limitations to the performance of coated stocks with this technology.
Coating materials used in the manufacture of these papers impact
performance and reliability (i.e., smearing, blurring and flaking).
Moisture and xerography
Xerography is a dry process where papers run at about 4.5%
moisture content. If too much moisture is present, the heat of the
fuser will draw out the moisture, causing curl. If there is not enough
moisture, static electricity becomes a problem. For best results,
keep paper sealed in a temperature/moisture controlled
environment until ready for use. Re-seal open reams with tape or
plastic wrap, or place in a moisture-proof container.
moisture content. If too much moisture is present, the heat of the
fuser will draw out the moisture, causing curl. If there is not enough
moisture, static electricity becomes a problem. For best results,
keep paper sealed in a temperature/moisture controlled
environment until ready for use. Re-seal open reams with tape or
plastic wrap, or place in a moisture-proof container.
Textured stock and xerography
Imaging drum
on rough
surface
on rough
surface
In order to duplicate or print fine lines and detailed images on
xerographic equipment, the paper surface must come in close
contact with the imaging drum for toner particles to adhere. If the
paper texture is too rough, some particles may never come in
contact with the paper, and parts of your image won’t print.
xerographic equipment, the paper surface must come in close
contact with the imaging drum for toner particles to adhere. If the
paper texture is too rough, some particles may never come in
contact with the paper, and parts of your image won’t print.
Imaging drum
on smooth
surface
on smooth
surface
In xerography, textured surfaces may not
allow the imaging drum to make close contact
with the surface, resulting in uneven printing and
loss of detail.