Liquid transfer articles and method for producing them

Details Liquid transfer articles and method for producing them Liquid transfer articles and method for producing them

B - Operations, Transporting

05

D

B05D 3/06 (2006.01) B05C 1/08 (2006.01) B05D 5/02 (2006.01) B05D 5/04 (2006.01) B41C 1/05 (2006.01) B41F 31/26 (2006.01) B41N 1/00 (2006.01) B41N 7/06 (2006.01)

Patent

CA 2015807

The invention relates to a liquid transfer article, such as a printing roll, having a laser-engraved coated surface comprised of wells adapted to receive a liquid and land areas adapted to be wiped free of any liquid prior to contacting a receiving surface so that only the liquid in the wells are transferred The land areas of the coated surface have a density of greater than 95% theoretical and a roughness of less than 6 micro-inches Ra to insure that any unwanted liquid on the land areas can be wiped clean prior to contacting a receiving surface. The invention also relates to a method for producing the liquid transfer article.

L'invention porte sur un article de transfert de liquide, tel un rouleau d'impression, ayant une surface à revêtement gravé au laser qui comporte des creux adaptés pour recevoir un liquide et des zones d'appui adaptées pour être essuyées et débarrassées de tout liquide avant d'entrer en contact avec une surface réceptrice de manière que seulement le liquide contenu dans les creux soit transféré. Les zones d'appui de la surface à revêtement ont une densité théorique supérieure à 95 % et une rugosité inférieure à 6 micropouces Ra de sorte que tout liquide non souhaité sur les zones d'appui puisse être essuyé avant qu'elles n'entrent en contact avec une surface réceptrice. L'invention porte également sur une méthode pour produire l'article de transfert de liquide.

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