Black and White Grid Opacity Test Paper

The black-and-white grid hiding power test paper consists of alternating black and white squares and is used to evaluate the hiding ability of materials such as coatings and inks. The principle involves applying the sample onto the surface of the test paper and assessing the hiding performance by observing the degree to which the black-and-white grid is covered. It is applied in coating production and printing quality inspection to test the hiding effect of products.
Selection
When selecting, consider the compatibility between the substrate material and the sample to be tested, and ensure that the grid size meets the requirements for detection accuracy. Pay attention to the uniformity of the test paper coating and its resistance to penetration, ensuring it is not easily damaged after multiple uses. Verify its measurement consistency according to industry standards, while balancing cost and frequency of use requirements.

Terms

Standards

Instruments

Laminating-free black and white half design, size 98 * 152mm, Encasement specification 100 sheets/bag, suitable for Coating inks film hiding power performance detection experiment.

$ 89.00

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

Black and white half design is convenient for hiding ratio calculation, surface sealing treatment improves waterproof performance, 200x125mm specification ensures test standardization, and effectively prevents paper Curl from affecting Measurement accuracy.

$ 162.00

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

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

Black and white half design, size 98x152mm, ASTM standard, can accurately measure Coating hiding power, support transparent film and plastic pRoducts hiding ratio detection.

$ 267.00

The black and white contrast design can intuitively evaluate the covering effect, in line with the D4941 standard specification, the size is 140x254mm for easy operation, the matching Applicator Rod can obtain uniform coating, support levelling sag and other tests.

$ 275.00

Using 140 * 250mm black and white half design, no Laminating surface to ensure detection accuracy, suitable for hiding power performance testing, Encasement specification of 100 sheets/pack for experimental use.

$ 90.00

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

The black and white half design is used for easy hiding power comparison, the size is 194x260mm to meet the standard test requirements, and it meets the ASTM specifications to ensure the detection accuracy. It is suitable for the hiding ratio determination of various coatings and inks.

$ 315.00

Black and white half design is convenient for hiding power comparison, 140 * 250mm standard size is suitable for experimental requirements, surface Laminating enhances durability, and 100 sheets per pack meets batch testing.

$ 90.00

After overheating, the white display window shows white characters on a black background, and the frame adopts regression directional reflection technology to facilitate low-light long-distance inspection. The size is 25 * 25mm, and the discoloration method is irreversible, which is suitable for indoor and outdoor environments.

$ 90.00

After overheating, the white display window shows white characters on a black background, and the frame adopts regression directional reflection technology to facilitate long-distance inspection of low light. The size is 25 * 25mm, and the discoloration method is irreversible.

$ 90.00

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

Black and white half design, size 98x152mm, with anti-permeability and Color uniformity, smooth surface is not easy to Curl, suitable for accurate hiding power measurement and levelling sag detection.

$ 267.00

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