M00011388
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TAPPI T 480 om-05 Specular Gloss of Paper and Paperboard at 75 Degrees
standard by Technical Association of the Pulp and Paper Industry, 05/23/2005
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This method is for measuring the specular gloss of paper at 75 (15 from the plane of paper). Although its chief application is to coated papers (1), it may also be used for uncoated papers.
This method is not a measure of image-reflecting quality and should not be used for cast-coated, lacquered, highly varnished (2-4) or waxed papers (5), and high-gloss ink films (6). For these purposes, TAPPI T 653 Specular Gloss of Paper and Paperboard at 20 Degrees is preferred, although the present method has been shown to be suitable for gloss measurements of most other ink films on paper or paperboard. Here, differences in the color and the diffuse reflectances of these ink films have a negligible effect on measured gloss. For example, on comparing white and black surfaces which are otherwise identical, the white surface will measure less than one gloss unit higher than the black.
This method does not measure image-reflecting quality. Product Details
Published: 05/23/2005 Number of Pages: 6