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Optical Brighteners (OBA's) - Aardenburg Imaging and Archives
- https://www.aardenburg-imaging.com/optical-brighteners-obas/#:~:text=The%20use%20of%20optical%20brightening%20agents%20%28OBAs%29%20in,manufacturers%20add%20to%20enhance%20paper%20brightness%20and%20whiteness.
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(PDF) Optical Brightening Agents in Photographic Paper
- https://www.researchgate.net/publication/272313948_Optical_Brightening_Agents_in_Photographic_Paper
- Abstract. A reference collection of mostly 20th-century photographic paper was surveyed for the presence of optical brightening agents. Only fiber-based, …
Optical Brightening Agents in Photographic Paper
- https://www.jstor.org/stable/40024485
- 20th-century photographic paper was surveyed for the presence of optical brightening agents. Only fiber-based, gelatin silver paper was assessed. In all, 1,804 samples were examined, dating from 1896 to 2004 and representing 40 different manufacturers. No optical brightening agents were found in samples dating from 1896 to 1949. The first occurrence of
Optical Brightening Agents in Photographic Paper: Journal of the ...
- https://www.tandfonline.com/doi/abs/10.1179/019713605806082392
- A marked increase in occurrence was observed after 1980, when 81% of samples exhibited optical brightening agents. These results indicate that a significant proportion, and for some time periods a significant majority, of black-and-white, paper-based photographs made after the early 1950s contain optical brightening agents.
Optical Brightening Agents in Photographic Paper
- https://www.semanticscholar.org/paper/Optical-Brightening-Agents-in-Photographic-Paper-Messier-Baas/94cbf5203971710b9f922817cdc968b639c22aaa
- Abstract A reference collection of mostly 20th-century photographic paper was surveyed for the presence of optical brightening agents. Only fiber-based, gelatin silver paper was assessed. In all, 1,804 samples were examined, dating from 1896 to …
Optical Brighteners in Inkjet Paper - Photo Review
- https://www.photoreview.com.au/tips/outputting/optical-brighteners-in-inkjet-paper/
- Optical brighteners – also known as ‘optical brightening agents’ (OBAs) or UV brighteners are white or colourless compounds that are added to the printing surfaces of many inkjet papers. Their purpose is to make the papers appear whiter and brighter than they actually are.
Optical Brightening Agents (OBA) | Types & Uses of OBA
- https://www.meghmaniglobal.com/types-and-uses-of-optical-brightening-agents/
- Common Uses of Optical Brightening Agents. 1) Detergent whitener (instead of bluing agents): To add whitening quality to the detergents. 2) Paper brightening (internal or in a coating): To give a whiter and brighter white papers.
What Are Optical Brightening Agents (OBAs)? | Peter …
- https://peterholdmann.com/2018/06/13/what-are-optical-brightening-agents-obas/
- OBAs are Optical Brightening Agents, also known as Optical Brighteners, Ultraviolet brighteners, or artificial whiteners. When hit with ultraviolet light, they fluoresce, emitting a blueish light that makes the paper look brighter and whiter. Brighter and whiter are two things we want from our paper, so what’s the problem?
Optical Brightening Agents in Photographic Paper
- https://www.photrio.com/forum/threads/optical-brightening-agents-in-photographic-paper.124364/print
- 20th-century photographic paper was surveyed for the presence of optical brightening agents. Only fiber-based gelatin silver paper was assessed.I n all, 1,804 samples were examined, dating from 1896 to 2004 and representing 40 different manufacturers. No optical brightening agents were found in samples dating from 1896 to 1949. The first occurrence of
Optical Brightening Agents in Photographic Paper | Photrio.com ...
- https://www.photrio.com/forum/threads/optical-brightening-agents-in-photographic-paper.124364/
- Mustafa Umut Sarac submitted a new resource: (there was a url link here which no longer exists) - Optical Brightening Agents in Photographic Paper...
The Effect of Optical Brightening Agent (OBA) in …
- https://scholarworks.rit.edu/cgi/viewcontent.cgi?article=9692&context=theses
- Paper makers utilize optical brightening agents (OBAs) to make substrates brighter and whiter to satisfy these demands while also lowering their costs, as OBAs are less expensive than traditional brighteners such as titanium dioxide.
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