Method for modifying the surface state of materials, in particul

Details Method for modifying the surface state of materials, in particul Method for modifying the surface state of materials, in particul

1988-10-04

1991-04-30

Pianalto, Bernard

Coating processes

Electrical product produced

Welding electrode

427198, 427202, 427348, 4273744, 427375, 427378, 4273981, B05D 306

Patent

active

050117092

ABSTRACT:
A method of modifying the surface state of a material or a medium, in particular of the paper and/or card type for the purpose, in particular, of printing on said surface or medium, whereby a plurality of inks and/or varnishes are applied simultaneously on the surface of said material, said inks and/or varnishes being deposited or treated in such a manner as to provide zones on the material or medium suitable for retaining dusting particles which adhere exclusively on said zones, with excess dusting particles then being removed by suction and/or blowing, with said operation being followed by drying at a temperature and for a period of time suitable for fixing all of the types of ink or varnish, wherein the dusting comprises thermoplastic or hot-setting powders which are melted in an atmosphere of air having sufficient humidity to counter a large drop in the humidity of the medium under the effect of the means for melting the powders. Applicable to printing in relief on paper and card.

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