Opacity Tester Digital, Opacity Meter

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Home > Products > Paper & Packaging Instruments > Opacity Tester-Digital

Paper & Packaging Instruments

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Opacity Tester-Digital

Model No: OTD 68

Presto Opacity Tester – Digital is used to measure the opacity of paper & packaging materials. Opacity is a fundamental optical property of paper as a whole. The measurement of opacity is determined as a ratio of reflectance measurements. The opacity of the sheet is influenced by thickness, the amount and kind of filler, degree of bleaching of the fibers, coating and other parameters.

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Opacity is the property of a substrate to resist passage of light. It is measured as the percentage of light absorbed by a sheet of paper. With a single pass of the light source through your material, the system measures relative light transmission on a scale of 0 to 100 Opacity Units, representing perfectly transparent to purely opaque materials. Opacity Tester – Digital measures the opacity of book printing where both sides of paper are printed.

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