Color iQC Help - X-Rite

formulation once for each fiber in the substrate. Set this field to the appropriate
value for the fiber you are currently formulating in the blend. For example, if you
are formulating for a substrate composed of a 60/40 blend of cotton and
polyester, you would set this field to 60% when formulating for the cotton portion
and 40% when formulating for the polyester portion.
Substrate Factor --- This value is used when formulating for substrates which by
their chemical properties alter the colorants in predictable ways, affecting the
final color of the product. For example, you know that a particular substrate will
always dye 1.0% dark. You would introduce a substrate factor of 0.99 in order to
correct for the effect of the substrate on the final color. The value of this factor
would have to be determined experimentally in the laboratory or through the use
of production records. Generally, this factor will be of most use when formulating
first time matches to a target. It will be of minimal value during the formula
correction process. Substrate factors are stored with the substrate and so may
also be accessed through the Substrate Properties dialog box.
Process Correction Factor --- This field allows you to input a number which will
correct for known variations between laboratory and production formulas. For
example, you know that a formula run in production results in goods dyeing 10%
lighter than the same formula run in the laboratory. A process correction factor of
1.1 would correct for that, increasing Color iControl's calculations by 10%. In
another application, it is known that a particular substrate always results in
dyeings that are 10% heavy. In this case, the process correction factor would
have to be set to 0.9, decreasing the program's calculations by 10%. In both
cases, the correction is a simple, across-the-board adjustment of the entire
formula. This factor, which defaults to 1.00, adjusts both the concentration and
total amount values.
Colorants/Combination --- This field allows you to select how many colorants
you wish to combine to produce the target. You may select any number up to
six. You may also select more than one number. For example, say you wish
Color iControl to try to match your target by combining two and three colorants in
various concentrations. You would simply enter "2,3" into this field. Color
iControl would try out formulas containing only two colorants and then try
formulas containing three. The order of the numbers does not affect the
calculations.
Transmission/Color Value Method --- These options are only applicable when
using transmittance measurements. It determines the method used to calculate
the color value for a given sample. There are two choices: Weighted Sum and
Single Wavelength. It is strongly recommended that you use the Single
Wavelength setting when using transmittance measurements.
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