Article de papier ayant une lisibilité améliorée
| N° de brevet: |
EP1897991 (A2) |
| Date de publication: |
2008-03-12 |
| Inventeur(s): |
OLSEKE KJELL [SE];SEHLIN JAN OLOF [SE]; |
| Demandeur(s): |
ARCTIC PAPER AB [SE]; |
| Classification: |
D21H21/28;D21H21/30; |
| N° de demande: |
EP20070115836 20070906 |
| Numéro(s) de priorité: |
SE20060001845 20060907 |
A paper article comprising a wavelength converting material and/or a colorant is provided. The wavelength converting material has an absorption peak in the wavelength range of from 400 to 500 nm and an emission peak in the wavelength range of from 500 to 600 nm, while the colorant has an absorption peak in the wavelength range of from 600 to 700 nm. Such a paper article provides increased readability for persons suffering from cataract or cloudy vitreous body, and will have a preventive effect on the degeneration of the outer layer of the retina, and/or the development of myopia.
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