Xerox 701P28020 manual Stock coating categories for Xerox Nuvera, Formation, Impurities

Models: 701P28020

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Stock coating categories for Xerox Nuvera

Selecting stock for your Xerox Nuvera System

Stock coating categories for Xerox Nuvera

Coatings can be applied to papers to increase smoothness.

When coated media are entered into the Stock Library, the coating type must be set to gloss, high-gloss, semi-gloss, satin, or matte.

Table 1-5.provides descriptions of the coating types.

Table 1-5. Stock Library coating categories

Stock Library

Common names / descriptions (supplied by

Gloss range (% reflectance)

coating types

the paper manufacturer)

 

 

 

 

High gloss

Cast, Chrome coated, C1S/C2S, cast

Gloss range = 80+

 

coated, and any other high gloss special

 

 

process media

 

 

 

 

Gloss

Gloss, Enamel, Art

Gloss range = 50 to 80

 

 

 

Semi-gloss

Dull, Silk

Gloss range = 35 to 50

 

 

 

Satin

Satin, Velvet

Gloss range = 23 to 35

 

 

 

Matte

Matte, Reply card

Gloss range = 10 to 25

 

 

 

The gloss ranges in Table 1-5.are measured at a 75 degree angle with the TAPPI test method T 480. Gloss ranges are not rigidly fixed, which accounts for the slight overlap in values.

You can normally use the name or description of the finish, which is supplied by the manufacturer, to determine the coating type. Paper mills may not be consistent in how they describe stock coatings.

Formation

Formation is the distribution of fibers in paper. Fibers should be distributed evenly throughout the sheet. Although formation is not included in the manufacturer’s specifications, you can check it by holding a sheet up to a light. If the sheet looks even throughout, it has good formation. If you see uneven light and dark areas, formation is poor.

Good formation is especially important when documents include halftone images of photographs or high ink coverage. Halftone images appear sharper on paper with good formation. Solid images can appear uneven or spotty when printed on paper with poor formation.

Impurities

Impurities in the papermaking process can leave tiny specks in some stocks. The specks can appear as marks or spots in printed

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Xerox Nuvera Paper Guide

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Xerox 701P28020 Stock coating categories for Xerox Nuvera, Formation, Impurities, 5. Stock Library coating categories