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TAPPI T 519 OM
Diffuse opacity of paper (d/0 paper backing)
Organization:
TAPPI - TAPPI
Year: 2011
Abstract: This method provides a measure of diffuse opacity (paper backing) of white and near-white papers, previously known as "printing opacity."
The method may be employed for colored papers on condition that their reflectance (paper backing) is greater than 20% and their diffuse opacity (paper backing) is greater than 45% (1).
The method is not suitable for highly transparent papers such as glassine.
This method employs d/0 geometry, illuminant C, and paper backing whereas TAPPI T 425 "Opacity of Paper" employs 15/d geometry, illuminant A, both 89% reflectance backing and paper backing.
This method is similar to ISO 2471.
The method may be employed for colored papers on condition that their reflectance (paper backing) is greater than 20% and their diffuse opacity (paper backing) is greater than 45% (1).
The method is not suitable for highly transparent papers such as glassine.
This method employs d/0 geometry, illuminant C, and paper backing whereas TAPPI T 425 "Opacity of Paper" employs 15/d geometry, illuminant A, both 89% reflectance backing and paper backing.
This method is similar to ISO 2471.
Subject: Diffuse reflection
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| contributor author | TAPPI - TAPPI | |
| date accessioned | 2017-09-04T17:16:11Z | |
| date available | 2017-09-04T17:16:11Z | |
| date copyright | 01/01/2011 | |
| date issued | 2011 | |
| identifier other | ZFECTEAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;quein=anid=/handle/yse/139622 | |
| description abstract | This method provides a measure of diffuse opacity (paper backing) of white and near-white papers, previously known as "printing opacity." The method may be employed for colored papers on condition that their reflectance (paper backing) is greater than 20% and their diffuse opacity (paper backing) is greater than 45% (1). The method is not suitable for highly transparent papers such as glassine. This method employs d/0 geometry, illuminant C, and paper backing whereas TAPPI T 425 "Opacity of Paper" employs 15/d geometry, illuminant A, both 89% reflectance backing and paper backing. This method is similar to ISO 2471. | |
| language | English | |
| title | TAPPI T 519 OM | num |
| title | Diffuse opacity of paper (d/0 paper backing) | en |
| type | standard | |
| page | 6 | |
| status | Active | |
| tree | TAPPI - TAPPI:;2011 | |
| contenttype | fulltext | |
| subject keywords | Diffuse reflection | |
| subject keywords | Opacity | |
| subject keywords | Paper | |
| subject keywords | Reflectance |