CATEGORIES

    Reflectance card paper

    Overview Products Knowledge Standards Terms
    Reflectance cards are paperboards coated with standard white or gray coatings, utilizing their stable reflective properties as a reference standard. In color management, instruments are calibrated by measuring the ratio of reflected light between the sample and the card to ensure consistency of color data across different devices. They are used in applications such as print density testing, ink opacity evaluation, and paper whiteness analysis.
    Selection
    When selecting, focus on the flatness and wear resistance of the cardstock material, ensuring that the reflectivity meets industry standards (such as the 80% whiteness specified in ISO 2469). Consider the adaptability to the temperature and humidity of the usage environment, and the coating should be resistant to yellowing. Compare the metrological certification documents provided by suppliers to ensure traceability to national standards. Choose cardstock sets with different gray levels based on actual measurement accuracy requirements.
    function
    style
    size
    Surface film laminating

    Terms

    Hiding power chart
    Reflectometer
    Reflectance meter
    Paint Film Reflectance Meter
    Film test card stock
    Coating weight test card
    Coating Reflectometer

    Standards

    Active GB/T 3780.17-2017
    Carbon black—Part 17: Indirect determination of particle size—Reflectance method
    Active GB/T 20503-2006
    Anodizing of aluminium and its alloys - Measurement of specular reflectance and specular gloss at angles of 20°,45°,60°or 85°
    Active GB/T 10335.3-2018
    Coated paper and board—Coated ivory board
    Active GB/T 20216-2016
    Pulp and paper—Determination of the effective residual ink concentration (ERIC number)—Infrared reflectance measurement

    Instruments

    PUSHEN PS 2930/3 large black and white paper ZGL hiding power measurement cardboard, black and white reflectance < 1/80 +/- 2
    PUSHEN PS 2930/3 large black and white paper ZGL hiding power measurement cardboard, black and white reflectance < 1/80 +/- 2

    Made of non-fluorescent paper, does not contain Fluorescent Whitening Agent, the black part reflectance is less than 1, the white part reflectance is 80 +/- 2, the surface is smooth and anti-Curl, and the test area is 0.1 square Meters.

    $ 91.00
    PUSHEN PS 2930/4 Checkerboard Opacity Chart Black and white reflectance < 1/80 +/- 2
    PUSHEN PS 2930/4 Checkerboard Opacity Chart Black and white reflectance < 1/80 +/- 2

    Made of high-quality non-fluorescent paper, does not contain Fluorescent Whitening Agent, black reflectance < 1, white reflectance 80 +/- 2, Laminating design enhances anti-Curl ability, test area of 0.1 square Meters.

    $ 89.00
    PUSHEN PS 2930/1 small black and white paper hiding power measurement cardboard reflectance < 1/80 +/- 2
    PUSHEN PS 2930/1 small black and white paper hiding power measurement cardboard reflectance < 1/80 +/- 2

    Black part reflectance less than 1, white part reflectance 80 +/- 2, no Laminating design to enhance paint wettability, avoid checking or cissing, suitable for specific spreading rate brushing tests.

    $ 88.00
    PUSHEN PS 2930/9 hiding power measurement Cardboard, large white Laminating reflectance White 80 +/- 2 Black < 1
    PUSHEN PS 2930/9 hiding power measurement Cardboard, large white Laminating reflectance White 80 +/- 2 Black < 1

    Using non-fluorescent paper substrate, white reflectance 80 +/- 2, black reflectance < 1, Laminating design enhances Curl resistance, 0.1 square Meter standard area is suitable for spreading rate testing.

    $ 91.00
    Determination of hiding power in PUSHEN PS 2930/8 Cardboard reflectance 80 +/- 2
    Determination of hiding power in PUSHEN PS 2930/8 Cardboard reflectance 80 +/- 2

    White part reflectance 80 +/- 2, black part reflectance less than 1, surface smoothing anti-Curl, suitable for 0.1 square Meter spreading rate test, wettability is good for checking.

    $ 89.00
    QILI SMN-R reflectance instrument intelligent 45/0 reflectance and hiding power test
    QILI SMN-R reflectance instrument intelligent 45/0 reflectance and hiding power test

    With 45/0 reflectance and hiding power test function, repeability 0.2%, repRoducibility 0.5%, automatic calibration and correction of black and white board values, support USB data transmission and statistical mode.

    $ 646.00
    PUSHEN PS 2930/2 medium black and white paper, top white and bottom black Opacity Chart
    PUSHEN PS 2930/2 medium black and white paper, top white and bottom black Opacity Chart

    Black part reflectance less than 1, white part reflectance 80 +/- 2, Laminating design enhanced anti-Curl ability, suitable for spreading rate testing, area of 0.1 square Meters.

    $ 89.00
    TEELEN WPC185D-HDMI Microscope Special Camera HDMI WIFI SD Card Three Outputs
    TEELEN WPC185D-HDMI Microscope Special Camera HDMI WIFI SD Card Three Outputs

    Support HDMI, WIFI and SD card three output, 1920 * 1080 resolution, can directly control camera paraMeters through USB mouse, embedded image capture and video recording, suitable for a variety of detection scenes.

    $ 1461.00
    AMITTARI ARM-216 reflectance measurement instrument for coating grease film plastic pRoducts
    AMITTARI ARM-216 reflectance measurement instrument for coating grease film plastic pRoducts

    Measurement accuracy of +/- 1, resolution 0.1, support USB and Bluetooth data output, using Photocell, photovoltaic cell technology for reflectance detection, suitable for a variety of material surface analysis.

    $ 517.00
    3NH NR4520 whiteness Analyzer whiteness Meter 45/0 illumination condition measurement reflectance
    3NH NR4520 whiteness Analyzer whiteness Meter 45/0 illumination condition measurement reflectance

    Measurement time is only 1.5 seconds, Repeatability is less than R0.1, which can measure a variety of whiteness indicators and reflectance, and is suitable for the analysis of fluorescent whitening samples.

    $ 800.00
    3NH NR4510 reflectance Tester Portable reflectivity Meter 45/0 illumination mode
    3NH NR4510 reflectance Tester Portable reflectivity Meter 45/0 illumination mode

    Adopt 45/0 lighting mode, the measurement diaMeter is Φ 20mm, Repeatability Delta R0.1 or less, intelligently store the calibrated value, no need to calibrate frequently, compact and portable can directly measure reflectance value.

    $ 490.00
    AMITTARI ARM-216 reflectance hiding ratio instrument 450nm Illuminant 7 * 14mm elliptical aperture
    AMITTARI ARM-216 reflectance hiding ratio instrument 450nm Illuminant 7 * 14mm elliptical aperture

    Using 450nm Illuminant and 7 * 14mm elliptical measurement aperture, can accurately measure transparency and surface reflectance, support USB and Bluetooth data output, suitable for a variety of material detection.

    $ 517.00
    PUSHEN PS 2930/5 Diagonal Twill Small Twill Opacity Chart
    PUSHEN PS 2930/5 Diagonal Twill Small Twill Opacity Chart

    Black part reflectance is less than 1, white part reflectance is 80 +/- 2, Laminating design enhances anti-Curl ability, size 145 × 262mm is suitable for spreading rate testing.

    $ 89.00
    PUSHEN PS 2930/6 hiding power determination Checkerboard Laminating
    PUSHEN PS 2930/6 hiding power determination Checkerboard Laminating

    Checkerboard pattern design, black part reflectance below 1%, white part reflectance 80 +/- 2, Laminating structure enhanced anti-Curl ability, size 195 × 286mm, suitable for fast Spreader testing.

    $ 91.00
    PUSHEN PS 2930/7 small white paper hiding power determination cardboard white test piece
    PUSHEN PS 2930/7 small white paper hiding power determination cardboard white test piece

    White part reflectance 80 +/- 2, non-Laminating design to enhance paint wettability, test area of 0.1 square Meters, Curl and checking resistance, suitable for brushing applications.

    $ 88.00

    Articles

    Spectrophotometer measures ink spectral reflectance and opacity.
    This article introduces how to measure the hiding power of ink using a spectrophotometer. The instrument irradiates the ink sample, measures its reflectance within the visible light spectrum, and calculates the hiding power using the Kubelka-Munk model.
    The combination of hiding power chart paper and a spectrophotometer enables the digital evaluation of hiding power.
    This article introduces how to combine hiding power cards with spectrophotometers to achieve digital assessment of hiding power.
    Technical Details of Measuring Paint Contrast Ratio Using Black-and-White Checkerboard Method with Hiding Power Card
    This article introduces a method for measuring the hiding power of coatings using black and white checkerboard paper.
    Test card paper for coatings is used for evaluating the appearance and film thickness consistency of coatings.
    Coating test card is an integrated testing tool used to evaluate the appearance and film thickness uniformity of coatings.
    Application of Coating Rate Cardboard in the Determination of Coating Rate for Architectural Coatings
    Coating rate card paper is a standardized substrate used to determine the spreading rate of architectural coatings. It features a smooth surface and stable parameters, which help minimize the influence of substrate variations and environmental factors associated with traditional methods.
    Reflectometer Selection: Light Source Geometric Conditions and Contrast Ratio Testing
    This article primarily discusses that when selecting a reflectometer, the geometric conditions of the light source are crucial, as they directly affect the accuracy of the measurement results.
    Reflectometer for measuring the hiding power of colored paint coatings
    This article introduces the method of using a reflectometer to measure the hiding power of colored paint coatings. Hiding power refers to the ability of a coating to conceal differences in the underlying color. Traditional methods relying on visual judgment are prone to subjective influences, while instrumental measurement offers greater objectivity and accuracy.
    Opacity tester evaluates the covering power of coatings.
    The hiding power tester is a professional instrument used to evaluate the covering ability of coatings. It quantifies the hiding effect by measuring the reflectance ratio (contrast ratio) of the coating film on black and white substrates.
    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.
    The role of a reflection densitometer in controlling printing ink concentration.
    The reflection densitometer measures the light reflectance of the ink layer and converts it into a density value, thereby objectively reflecting the thickness and concentration of the ink layer. In printing, it is used to monitor solid density, ensuring stable ink supply, replacing subjective judgment, and enabling data-driven control.
    Calibration and Use of Paper Whiteness Tester
    This article introduces the working principle, calibration process, operational steps, and factors influencing the measurement results of a paper whiteness tester. The instrument evaluates whiteness by measuring the reflectance of blue light from paper, and calibration requires the use of a standard whiteboard in accordance with relevant standards.
    Black-and-white checkerboard and reflectometer for measuring pigment hiding power
    This article introduces two methods for measuring the hiding power of pigments: the black-and-white checkerboard method and the reflectometer method.
    Covering Power Evaluation—Mass per Unit Area Method vs. Reflectance Comparison Method
    This article primarily discusses two common methods for evaluating hiding power in industries such as coatings and inks: the mass per unit area method and the reflectance contrast method.
    The role of black-and-white test paper in contrast ratio measurement
    Black-and-white test paper plays a key role in determining the contrast ratio of coating materials. The contrast ratio is an important indicator of hiding power, calculated by comparing the reflectance of the coating on black and white substrates.
    Hiding power measurement: Equivalence of mass per unit area method and reflectance contrast method.
    Covering power is a key indicator for evaluating the optical performance of coating materials such as paints, inks, and pigments, reflecting the material's ability to conceal the color of the substrate. Accurate determination of covering power is crucial in industrial quality control and research and development.