Hiding power black and white photographic paper

Opacity black and white paper measures the degree to which coatings or inks cover the underlying color through the paper surface coating's ability to reflect and absorb light. During testing, the sample is evenly applied on the black-and-white grid paper, and after drying, it is observed whether the base color shows through, which is used to control the product's opacity and production consistency.
Selection
When selecting, ensure the photo paper surface is smooth and free of defects, with a sharp contrast between black and white areas; the coating substrate should match the solvent type of the sample being tested; choose quantitative or fixed-thickness specifications based on testing standards to ensure that the test results align with actual production line conditions.

Terms

Standards

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, no Laminating design to enhance paint wettability, avoid checking or cissing, suitable for specific spreading rate brushing tests.

$ 88.00

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

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

$ 267.00

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 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

The black and white half design is easy to observe the covering effect, the size is 194 * 260mm to meet the standard test requirements, and the non-Laminating surface ensures the detection accuracy, which is suitable for laboratory film performance evaluation.

$ 93.00

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

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

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

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

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

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

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