datacolor spectrophotometer working procedure

DataColor standard operating procedures ( SOP )
Abdullah-Al-Mamun (Porag)
NITER 1st Batch, 01792-556070 Working-With-Data-Color Page 1
The following calibration procedure is generally followed-
1. Click the Calibrate button on the button bar, or Instrument Menu, Calibrate.
2. Click Calibrate. The Prepare for Calibration dialog box displays.
3. Place the black trap over the measurement port, and click the Ready button. If the
instrument does not have a black trap, clear the port of any obstruction and click the Ready
button. The Prepare for Calibration window redisplays when the measurements completed.
4. Place the white calibration tile over the measurement port, and click the Ready button.
When the second measurement is completed, the Control Measurement dialog box displays.
5. Click OK. If you have the diagnostic (green) tile test enabled, the program will prompt you
for the diagnostic tile.
6. Place the green tile at the port and click Ready. When the measurement is complete, the
results of the diagnostic tile test will be displayed.
7. The DECISION should be "Pass". Click OK to close the instrument.
Data color Tools Does the following Functions:
Measurement Procedure for Standard and Sample/Batch:
After completing the calibration procedure, the data color is ready for use. The measurement
procedure for standard sample-
1. Place the standard sample on the probe/port of the data color carefully(Usually four folded
is done)
2. Click the New Std button on the desktop. This clears the Name field, and places the cursor
in the field.
3. Enter a name for the sample. Sample data can come from the instrument, the database or
the keyboard. On the desktop there are two buttons that identify the origin of the standard
and batch measurements. (Here from Instrument).
4. The measurement method is set independently for each sample type. In this example, both
the standard and the batch measurement come from the instrument (Inst). Click the Std:
Inst button to start the measurement.
The sample just measured becomes the current standard on the desktop. Data fields on the desktop
will be updated to display the data for the sample just measured.
Data color Match’s does the following Functions: Colorant Sets:
A colorant set is a set of color information about the substrate and dyes the system uses to produce
match and correction recipes. It contains...
• Information about the overall colorant set, e.g., the substrate and process that will be used with
the dyes;
• Product information about each dye, e.g., strength, minimum and maximum concentrates;
• Color information about each dye;
Colorant Set procedure:
1. Open the “Colorant Set List” window.
2. On the “Colorant Set” or the context sensitive menu, select New Textile.

3. Specify the name and the identification of the new colorant set.
4. A click in the „Dye Process“, „Substrate Delivery“ and „Operation“ field opens the
corresponding selection box. Select Input Form on the context sensitive menu of the
selection box to specify a new object.
5. Click Store.
Recipe Calculation (Matching): Selection process as follows
1. Quality/style (data of the substrate)
2. Combined process
3. Substrate delivery (only for deliveries with data different to the blank dyeing substrate)
4. Dyed substrate (over-dyeing only)
5. Dyestuff group with dyes pre-selected from the assigned colorant set. The dyestuff group is
used to optimize the recipe calculation.
6. Selection criteria: • Dyes from the list
7. Parameter values, e.g., fastness information
8. Concentration values, e.g., min., max., conc.
9. Settings (parameters for calculation control) • standard: Color to be matched.
Recipe Calculation procedure:
1. Open the “Recipe List” window.
2. On the “Recipe” or the context-sensitive menu, select Calculate, or press F5.
3. Select the quality/style and the combined process.
4. If necessary, select the substrate delivery.
5. Select the colorant set(s)
6. Select the “Standard” to be matched.
7. If you have to re-dye, select the dyed substrate or re-measure it.
8. In the “Colorant Set” tab select the dyestuffs to used and select or specify a dyestuff group.
9. In the “Settings” tab, select the parameters for the matching process.
10. Click Calculate to immediately start the recipe calculation. The recipe table appears.
11. Select the recipes you want to dye.
12. Click close, or Save to save the recipe.
Laboratory Correction recipe procedure:
1. Select the recipe to be corrected in the “Recipe List” window.
2. On the context-sensitive menu, select Pass Fail and Laboratory Correction, or pressF6.
3. Click Pass Fail and Correction.
4. In the “Batch and Color Difference” field, measure or select the sample.
5. If necessary, alter the data in the dyestuffs table.
6. Click Save to save a manual correction. The correction recipe is saved.
7. Click Laboratories. The “Recipe Correction” table appears.
8. In the “Recipe Correction” dialog box, you can look at the result of the matching. The color
differences between “Standard” and “Batch” are displayed.
9. If finished, close the recipe table.. Click Yes.
10. Select the recipe output(s) according your needs, and/or close the” Show Full Recipe”
dialog box.
For standards, do the following:

1. Click the New Std button on the desktop. This clears the Name field, and places the cursor in
the field:
2. Sample data can come from the instrument, the database or the keyboard. On the desktop
there are two buttons that identify the origin of the standard and batch measurements.
3. The measurement method is set independently for each sample type. In this example, both
the standard and the batch measurement come from the instrument (Inst).
4. Place the standard at the instrument port, and click the Std:Inst button to start the
measurement. The sample just measured becomes the current standard on the desktop.
5. Data fields on the desktop will be updated to display the data for the sample just measured.
To change the measurement method for either the standard or batch:
1. Click on the down arrow to the view the measurement methods:
2. Click on the method to be used. The button will refresh, and display the measurement method
selected. In the example below, the standard measurement method has been changed to %R 31
points.
3. The next time you measure a standard; a window will open, and prompt you to enter 31-point
spectral data for the standard.
Color Evaluations Once you have selected a standard or batch, there are numerous color
evaluations you can perform.
Typically, the Datacolor TOOLS desktop includes several color evaluations including color
differences, pass/fail, color plots etc. The color evaluation displayed is always based on the current
standard and batch data on the desktop.
Basic Components of the Data color/Spectrophotometer:
All spectrophotometer instruments designed to measure the absorption of radiant Energy have the
basic components as follows:
1. A stable source of radiant energy (Light);
2. A wavelength selector to isolate a desired wavelength from the source (filter or
monochromatic);
3. Transparent container (curette) for the sample and the blank.
4. A radiation detector (phototube) to convert the radiant energy received to measurable
signal; and a readout device that displays the signal from the detector.
Recipe Calculation
Match: The recipes are calculated according to the selections and the results are displayed.
Review: The recipes can be reviewed according to the different criteria (various color difference
values, coordinates, price, etc.).
Further use: The recipes can be saved, printed and/or sent to a dispenser.

datacolor spectrophotometer working procedure

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datacolor spectrophotometer working procedure