How to measure the color of fabric with spectrophotometer CS-820

How to measure the color of fabric with spectrophotometer CS-820

We get sample fabric from one of textile customer. For now, they control the color by human eye. Samples color difference value should be within Delta E*ab 0.8 comparing with the target.

                     Target Fabric             Sample Fabric

Today we will introduce how the measure the color of it with our color spectrophotometer CS-820.

How to measure the color of fabric with spectrophotometer CS-820？

Test Condition

• 1. Mode: Reflectance
• 2. Light Source and Angle: D65/10 degree
• 3. Parameters need to Measure: color value L*a*b and ΔE*ab.
• 4. Because the fabric is translucent, we will use one A4 paper to make sure no light will enter into instrument to affect test result.
• 5. Make sure the test direction is same when measuring target and fabric because fabric is woven.

Test Method

1. Measure the color of the target fabric firstly. Then get its L*a*b, then measure the sample fabric to get the color differenceΔE*ab.

The following are the test result:

Company with the target, sample contains too much white and total color difference is Delta E*ab 1.43. These two colors are difference from each other.

Sample Name	Parameters	Test Value
Target Fabric	L	43.39
	a	0.05
	b	-0.52
Sample Fabric	L	44.71
	a	-0.48
	b	-0.47
	Delta E*ab	1.43