Writing paper

B - Operations – Transporting – 41 – M

Patent

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Details

B41M 5/00 (2006.01) B41J 2/21 (2006.01)

Patent

CA 2603497

The writing paper with lines includes a paper area with one or many reading or writing lines wherein the paper has a main area with a first degree of color difference and one or many lines with a second degree of color difference, that visibly contrast the degree of color difference of the main area, characterized therein that the lines have a lower degree of color difference than the main area. The degree of color difference between the lines and the main area, defined as delta E in (CIE)-Lab space, is in the interval 1-18, preferably 2-10.

Le papier d'écriture à lignes selon l'invention inclut une zone de papier comportant une ou plusieurs lignes de lecture ou d'écriture, le papier présentant une zone principale avec un premier degré de différence de couleur, et une ou plusieurs lignes avec un second degré de différence de couleur, contrastant visiblement avec le degré de différence de couleur de la zone principale, ledit papier étant caractérisé en ce que les lignes présentent un degré de différence de couleur inférieur à celui de la zone principale. Le degré de différence de couleur entre les lignes et la zone principale, défini comme delta E dans l'espace (CIE)-Lab, est compris dans l'intervalle 1-18, préférentiellement 2-10.

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