Black & White Square Grid Test Paper

The black and white grid test paper consists of alternating black and white squares of equal width, utilizing the human eye's ability to recognize high-contrast patterns. When used, it is pressed closely against the surface of the object being tested. By observing the deformation of the grid, the hiding power of the coating or the surface flatness can be evaluated. In the printing industry, it is used to detect ink coverage defects, while in the coating field, it is employed to assess the uniformity of paint films.
Selection
Select the contrast based on the color of the substrate being measured, using patterns with a higher proportion of white grids for dark surfaces. Determine the grid size according to the required detection accuracy: a 1mm grid width for routine inspections and 0.5mm for fine inspections. Consider the humidity of the testing environment: coated paper is suitable for dry conditions, while laminated types are better for humid conditions. Refer to industry standards to select the appropriate line count specifications.

Terms

Instruments

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

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

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

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 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

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

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

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

Using 25 × 25mm ² 32 grid design, Glass plate thickness 1.2~ 2mm, through the standard Checkerboard test can accurately calculate the Coating hiding power, easy and fast operation.

$ 128.00

Using irreversible discoloration technology, white turns black after overheating, temperature Measurement accuracy 100 ℃, Dimensions 22 * 22mm, each piece is a single temperature point.

$ 101.00

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

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

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

Temperature range of 50~ 120 ℃, irreversible discoloration, over-temperature grid window from white to red, clear contrast, suitable for indoor and outdoor equipment temperature display.

$ 140.00