Three dimensional nozzle orifice plates
US5255017A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1990 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Dec 3, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D1/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process of forming a mandrel for manufacturing inkjet orifice plates and the like includes the steps of providing an electrically-conductive layer on a substrate, providing a pattern of electrically conductive surfaces on the conductive layer, and surface treating the pattern of conductive surfaces to reduce adhesion of a subsequently applied electroplated film to the pattern of conductive surfaces. The mandrel includes a substrate, a pattern of electrically conductive surfaces on the substrate and an oxide layer on the pattern of conductive surfaces for reducing adhesion of an electroplated film to the pattern of conductive surfaces. The pattern of conductive surfaces can be an electro-deposited layer of nickel, and the release means can be a nickel oxide and/or nickel hydroxide film on the layer of nickel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.