US 11,718,088 B2
Doctor blade, inking arrangement and use of doctor blade in flexographic printing
Alexandre Claudon, Cheseaux-Noréaz (CH)
Assigned to BTG ECLEPENS S.A., Eclépens (CH)
Appl. No. 15/773,437
Filed by BTG ECLÉPENS S.A., Eclépens (CH)
PCT Filed Nov. 4, 2016, PCT No. PCT/EP2016/076697
§ 371(c)(1), (2) Date May 3, 2018,
PCT Pub. No. WO2017/077053, PCT Pub. Date May 11, 2017.
Claims priority of application No. 15192936 (EP), filed on Nov. 4, 2015.
Prior Publication US 2018/0319153 A1, Nov. 8, 2018
This patent is subject to a terminal disclaimer.
Int. Cl. B41F 9/10 (2006.01); B41F 31/04 (2006.01); B41N 10/00 (2006.01); D21G 3/00 (2006.01); B41F 31/20 (2006.01); B41F 9/06 (2006.01)
CPC B41F 31/04 (2013.01) [B41F 9/063 (2013.01); B41F 9/10 (2013.01); B41F 9/1072 (2013.01); B41F 31/20 (2013.01); B41N 10/005 (2013.01); D21G 3/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An inking arrangement comprising:
an anilox roller; and
a doctor blade for contact with the anilox roller,
the doctor blade comprising a flat, elongate base element, which, along a longitudinal region of the doctor blade adapted for contact with the anilox roller, is provided with a coating, the coating comprising a metal matrix and at least 65% by weight of at least two ceramics, the at least two ceramics including:
chromium carbide in an amount of 10% to 65% by weight of the coating; and
tungsten carbide in an amount of 25% to 85% by weight of the coating,
wherein the doctor blade further comprises a front face, an adjacent face, and a rounded cross-section along the longitudinal region of the doctor blade adapted for contact with the anilox roller, wherein the rounded cross-section has a diameter comprising a center, and wherein the center of the diameter is located substantially at a bisectrix between the front face and the adjacent face of the doctor blade.