Whiteness Value ColoriMeter

The whiteness meter and colorimeter illuminates the sample with a built-in light source, and the sensor receives the reflected light and converts it into an electrical signal. The processor calculates the whiteness value and color difference value based on CIE standards. It is used to detect the whiteness and color differences of materials such as paper and plastics, ensuring consistency across production batches.
Selection
When selecting, consider matching the measurement aperture to the sample size, ensuring the observation light source type complies with industry standards, the instrument's repeatability error is less than 0.08 ΔE, and it is equipped with a calibration whiteboard and software capable of storing data. Portable models are suitable for on-site inspections, while desktop models are ideal for fixed laboratory use.

Terms

Instruments

Fully automatic one-click measurement of a variety of whiteness paraMeters, support chromaticity coordinates ≤ 0.001 High Accuracy, built-in thermal printer and RS232 interface, suitable for powder, paper and other samples.

$ 1818.00

Repeatability of 0.2 for measurement of diffuse reflection factor using 457 nm blue wavelength can detect Fluorescent Whitening Agent and calculate fluorescence whiteness value, which is suitable for surface whiteness analysis of various materials.

$ 554.00

R457 blue light whiteness formula, Measurement range 0~ 199.9%, resolution 0.1, Basis Weight measurement of whiteness of fluorescent whitening objects and paper Opacity, suitable for a variety of materials surface flat samples.

$ 332.00

Can measure ISO blue light whiteness and fluorescence whiteness, support powder whiteness measurement, Repeatability ≤ 0.02, built-in thermal printer, data can be cached and power-off protection, equipped with RS232 interface for easy communication.

$ 1051.00

Using blue light whiteness R457 standard, Measurement range 0~ 100, Repeatability ≤ 0.5, Basis Weight can reflect fluorescent whitening effect and accurate measurement paper Opacity.

$ 654.00

R457 blue light whiteness formula, Measurement range 0~ 100%, resolution 0.1, Repeatability ≤ 0.3, suitable for fluorescent whitening objects and paper Opacity measurement.

$ 490.00

Using LED Illuminant, 45/0 illumination conditions, Measurement range 0~ 199.9, Repeatability ≤ 0.3, suitable for whiteness measurement of white objects or powders, easy to carry and on-site detection.

$ 393.00

Can measure ISO whiteness and fluorescence whiteness, Repeatability ≤ 0.02, support data cache and power-off protection, equipped with RS232 interface for easy communication, suitable for powder and flake samples.

$ 953.00

Using R457 whiteness formula, blue light whiteness and fluorescence whiteness can be measured simultaneously, Repeatability ≤ 0.3, Operating temperature 5~ 35 ℃, optical path design is simple to ensure measurement accuracy and Repeatability.

$ 432.00

Can measure ISO whiteness and fluorescence whiteness, equipped with diffuse ball diaMeter 150mm, test hole 19mm, support light scattering coefficient, absorption coefficient and other Optical inspection paraMeters, suitable for a variety of material surface whiteness analysis.

$ 1174.00

Adopt LED Illuminant and 45/0 illumination conditions, measurement aperture Φ 15mm, resolution 0.1, Repeatability ≤ 0.3, AC-DC dual-use design is convenient for on-site rapid detection of whiteness value.

$ 233.00

Using LED Illuminant and 45/0 illumination conditions, Measurement range 0~ 199.9, Repeatability ≤ 0.3, Diffuse reflected light is collected through the integrating sphere and converted into electrical signals to accurately evaluate the material whiteness level.

$ 291.00

Using microcomputer control and high-quality imported components, Repeatability ≤ 0.02, can measure the blue light 457nm diffuse reflection factor and fluorescence whiteness F value, the optical path design is simple and reasonable to ensure accurate and stable measurement.

$ 656.00

Adopt 32-bit ARM processor to improve data processing speed, equipped with 5-inch true color Touchscreen to simplify the operation process, support one-click whiteness and chroma testing, Repeatability color coordinates ≤ 0.0003.

$ 3026.00

Using LED Illuminant and 45/0 illumination conditions, Measurement range 0~ 199.9, resolution 0.1, can detect Fluorescent Whitening Agent and measure increased whiteness, Repeatability ≤ 0.3.

$ 417.00

Articles

Colorimeter controls batch color difference in plastic and rubber films.
This article primarily discusses how to use a colorimeter to control color differences in the production of plastic and rubber films. It explains the working principle of the colorimeter, which involves converting colors into numerical values represented by L, a, and b values, and then calculating the color difference.
Colorimeter evaluates the change in yellowing index of transparent resin.
This article introduces how to use a colorimeter to measure the yellowing index changes in transparent resin. Transparent resin can turn yellow over time or due to environmental influences, and the yellowing index can quantify the degree of color change.
Application of Colorimeters in Color Management for Packaging and Printing
This article mainly discusses the application of colorimeters in color management for packaging and printing. A colorimeter is an instrument used to measure color, capable of converting colors into numerical values, such as representing them with L*a*b* values.
Multi-angle colorimeter detects color changes in pearlescent coatings.
Pearlescent coatings contain special flake pigments that produce color effects that vary with the viewing angle, known as "goniochromism." Traditional single-angle measurements struggle to accurately capture this characteristic.
Principle and Application of Whiteness Meter in Measuring Coating Whiteness
A whiteness meter quantifies the whiteness of paint samples by simulating human perception of white, measuring the diffuse reflectance of light—particularly in the blue wavelength range—and converting it into a numerical whiteness value. It employs standardized optical configurations and mathematical models, such as the Ganz formula, to assess the brightness and chromaticity of coatings.
Application of Colorimeters in Controlling Color Differences in Paint Batches
This article introduces the role of colorimeters in controlling color consistency in paint production. Since human judgment of color is easily influenced by lighting and subjective factors, colorimeters quantify color differences in the CIELAB color space by measuring spectral data, providing an objective basis for production.
Application of Colorimeter and Color Matching Box in Pigment Color Inspection
A colorimeter and a light booth are two primary tools in pigment color inspection. The colorimeter measures color through photoelectric principles, while the light booth provides a standardized light source environment for visual evaluation of color effects, metamerism, and other phenomena.