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Desktop Spectrophotometer CS-820N for Paint Color and Opacity Measurement

Paint Industry | 2020-04-14 14:30:02

Color and opacity is an important parameter in the paint industry. In order to control the paint color and opacity quality, we would like to recommend CS-820N desktop spectrophotometer made by CHNSpec Tech. It can show color and opacity value and different value in one page with

It can accurately measure the color and opacity of the paint. Now we introduce how to measure opacity and color in detail.



Desk-top Spectrophotometer CS-820N


Opacity is measure for hiding power:

Opacity (%)= (YBlack/ YWhite)*100%

100% opacity means complete hiding power, no difference can be seen between the drawdown over black and white.

Prepare the paint samples for measurement. When we measure the opacity, we need paint the sample on the black / white contrast card like shows in the below picture.


Paint for Opacity and Color Measurement


Step1. Black and White Calibration the Desk-top Spectrophotometer CS-820N


Black Cavity for Black Calibration


Black Calibration


White Tile for White Calibration


White Calibration


Step2. Choose “opacity” for measurement on instrument.


Opacity


Step3. Target Opacity Measurement : Measure it on white background and then black background. After the measurement is completed, we can see the test result directly on instrument screen (Please refer to picture Opacity Test Result of Target).



Opacity Test Result of Target


Step4. Enter into “sample” measurement interface. Measure the sample on white and black background then we can see the test result of the sample and the opacity difference between target and sample.


Opacity and Opacity Difference Result


Hiding power

Black background

White background

L*

a*

b*

L*

a*

b*

Standard sample

94%

75.15

-0.19

31.01

77.05

1.53

34.21

Test sample

94.7%

75

-0.06

32.33

76.67

2.16

35.22

d0pacity=0.7%

dL*=0.15 da*=-0.13 db*=

-1.32

dL*=0.38 da*=-0.63 db*=

-1.01

Paint Color and Opacity Test Result


CS-820N color spectrophotometer is with large touch screen can show color and opacity value and different value in one page. CHNSpec Tech specialized on manufacturing colorimeters, spectrophotometers, haze meters and gloss meters for products color, haze and glossiness measurement. If any inquiry, you are welcome to contact with us.


CHNSpec Paint Gloss Meter Test Result Compare with BYK