ZHIBANG ZB-A whiteness Colorimeter

ZB-A

Whiteness Colorimeter

1. Overview

ZB-A Colorimeter is to measure the whiteness, yellowness, color and color difference of objects, and can also determine the opacity, transparency, light scattering coefficient, light absorption coefficient and ink absorption value of paper. It is widely used in papermaking, printing, ceramics, chemical industry, textile printing and dyeing, building materials, grain, salt and other industries.

The specific functions of the instrument are as follows:

1. Measure the color and chromatic aberration reflected by the object, which can be displayed or printed: diffuse reflection factor Rx, Ry, Rz, stimulus value Y10, X10, Z10, color coordinates x10, y10, z10, luminosity L*, chromaticity a*, b*, chroma C*ab, hue angle h*ab, main wavelength λd, excitatory purity Pe, chromatic aberration ΔE*ab, luminosity difference ΔL*, chromaticity difference ΔC*ab, hue difference ΔH*ab, Hunter system L, a, b.

2. Measure ISO brightness (blue light whiteness R457) and Z whiteness (Rz), which can measure the fluorescence whiteness produced by the emission of fluorescent substances in the fluorescent whitening sample.  

3. Measure CIE whiteness (Gantz whiteness W10 and color cast value TW10).

4. Measure the whiteness of the ceramic.    

5. Measure the whiteness of building materials and non-metallic mineral products.       

6. Measure Hunter Whiteness WH.

7. Measure the yellowness YI.      

8. Measure the opacity OP of the specimen               

9. Measure the transparency T of the specimen

10. Measure the light scattering coefficient S of the specimen     

11. Measure the light absorption coefficient A of the sample.      

12. Measure the ink absorption value.

Second, the implementation of standards

ISO 2469 Determination of diffuse reflectance factor --- paper, cardboard and pulp

ISO 2470 Paper and cardboard – Whiteness determination (diffusion/perpendicular)

ISO 2471 Determination of --- Opacity (Paper Backing) of Paper and Cardboard --- Diffuse Reflectance

ISO 9416 "Paper - Determination of light scattering and absorption coefficient (Kubelka-Munk)"

ISO 11475 "Determination of CIE whiteness on paper and cardboard, D65/10º (outdoor daylight)"

GB/T 7973 Paper, cardboard and pulp – Determination of diffuse reflectance factor (diffusion/perpendicular method)

GB/T 7974 Determination of brightness (whiteness) of paper, cardboard and pulp (diffusion/vertical method)

GB/T 7975 "Paper and cardboard – Determination of color (diffuse reflection method)"

GB/T 24288 "Paper and cardboard -- Determination of dominant wavelength and excitatory purity -- D65/10º diffuse reflectance method"

GB/T 10339 "Determination of light scattering and light absorption coefficients of paper, cardboard and pulp"

GB/T 8424.2 "Colorfastness test of textiles -- Instrumental evaluation method for relative whiteness"

GB/T 13173.14 "Surfactants -- Test methods for detergents -- Determination of whiteness of powdered detergents"

GB/T 8424.1 "Textiles -- Colourfastness test -- General principles for determining surface color"

GB/T 22880 "Paper and cardboard – Determination of CIE whiteness, D65/10º (outdoor daylight)"

GB/T 1543 "Paper and cardboard – Determination of opacity (paper backing) (diffuse reflection method)"

GB/T 6688 Instrumental method for the determination of relative strength and color difference of dyes

GB/T 13025.2 "General test method for salt industry, determination of whiteness"   

GB/T 2913 Test Methods for Whiteness of Plastics

GB/T 5950 "Methods for measuring the whiteness of building materials and non-metallic mineral products"   

GB/T 3979 "Methods for measuring the color of objects"

GB/T 8424.3        

GB/T 2679 "Determination of paper transparency"

GB/T 9338 "Fluorescent brightener -- Determination of relative whiteness -- Instrument method"   

GB/T 11186

GB/T 9984.5 "Industrial sodium tripolyphosphate test method - Determination of whiteness"   

GB/T 22427.6

GB/T 13835.7 Test method for whiteness of rabbit hair fibers      

GB/T 12911 "Determination of the Absorption of Paper and Cardboard Inks"

GB/T 4739 "Methods for Determining the Chromaticity of Daily Ceramic Pigments"     

GB/T 11942

QB/T 2789 "General test methods for cosmetics - Determination of color tristimulus value and color difference △E*"

QB/T 1503   

 HG/T 3862 "Test Method for Yellow Index of Plastics"

FZ-T50013 "Test Method for Whiteness of Cellulose Chemical Fibers - Blue Light Diffuse Reflection Factor Method"

Third, the main performance parameters

1. The appearance of the instrument is novel, the structure is compact, and the professional circuit design effectively ensures the accuracy and stability of the measurement data.

2. The instrument simulates D65 illuminator lighting. The CIE 1964 supplemental chromaticity system and the CIE 1976 (L*a*b*) color space chromatic aberration formula were used.

3. The instrument adopts D/O illumination to observe geometric conditions. The diameter of the diffuser ball is 150mm, the diameter of the test hole is 30mm, and the light absorber is equipped to eliminate the influence of specular reflection of the sample.

4. Using large-screen high-pixel LCD module, Chinese display and prompt operation steps to display measurement and statistical results, friendly man-machine interface makes the instrument operation simple and convenient

5. The instrument has added a printer and adopted imported thermal printing core, which does not need to use ink and ribbon, no noise during work, and fast printing speed

6. This instrument is equipped with standard RS232 interface, which can communicate with microcomputer software

7. The instrument has power-off protection, and the calibration data will not be lost after power-off

8. 9 reference samples can be stored.

Packing list：

[Note]Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.