Abstract: A method and device for evaluating a printing medium for use in a printing process, in which a set of spectral data is generated from a sample of the printing medium, and the set of spectral data is analysed. The analysis of the set of spectral data comprises detecting spectral data of the set indicative of features of the printing medium related to performance of that printing medium in the printing process. The performance of the printing medium in the printing process is predicted in response to the detected spectral data of the set indicative of performance-related printing medium features, and the printing medium is accepted or refused for use in the printing process in response to this printing medium performance prediction.

Abstract: A method and device for evaluating a printing medium for use in a printing process, in which a set of spectral data is generated from a sample of the printing medium, and the set of spectral data is analysed. The analysis of the set of spectral data comprises detecting spectral data of the set indicative of features of the printing medium related to performance of that printing medium in the printing process. The performance of the printing medium in the printing process is predicted in response to the detected spectral data of the set indicative of performance-related printing medium features, and the printing medium is accepted or refused for use in the printing process in response to this printing medium performance prediction.

Abstract: A method of manufacturing a surface for the transfer of a viscous liquid product including photochemically grafting onto a surface in distinct zones at least one of anti-adherent hydrophilic monomers, anti-adherent hydrophobic monomers, anti-adherent hydrophilic oligomers, anti-adherent hydrophobic oligomers, and combinations of them, conferring upon the surface a heterogeneousness of structure improving the quality of the transfer of the viscous liquid product.

Abstract: A surface for the transfer of a viscous liquid product to a support including a substrate having a surface to which are grafted distinct zones of at least one material. The materials may be an anti-adherent material, a hydrophilic material, and a hydrophobic material to impart to the surface a heterogeneous structure improving the quality of transfer of the liquid product, such as ink, to a support. This transfer surface may be an offset printing blanket for printing ink on paper.

Abstract: The portable case which can be converted into a chair comprises two separable half-shells (1, 2) capable of being fitted back-to-back in an adjustable manner by complementary assembly structure. One of the half-shells (2) comprises two articulated elements (7, 8) mounted about parallel hinges situated on two opposite sides of the half-shell so as to form, in the folded-out position, support surfaces of the chair thus assembled.