MESH FILTER PRODUCTION METHOD AND MESH FILTER

  • US 20190249320A1
  • Filed: 08/07/2017
  • Published: 08/15/2019
  • Est. Priority Date: 09/01/2016
  • Status: Active Application
First Claim
Patent Images

1. A method of producing a mesh filter, the method comprising steps of:

  • preparing a cylindrical platable metal base material;

    forming a mesh filter-shaped resist pattern by applying a photoresist onto a surface of the cylindrical metal base material, exposing the photoresist on the surface of the cylindrical metal base material and developing the photoresist on the surface of cylindrical metal base material;

    forming a diamond-like carbon coating film on surfaces of the cylindrical metal base material and the mesh filter-shaped resist pattern;

    forming a diamond-like carbon pattern on the surface of the cylindrical metal base material by peeling off the diamond-like carbon coating film formed on the mesh filter-shaped resist pattern together with the mesh filter-shaped resist pattern to produce a roll with the diamond-like carbon pattern; and

    producing a mesh filter by continuous plating of a platable metal using the roll with the diamond-like carbon pattern, wherein the mesh filter-shaped resist pattern is obtained by forming multiple mesh filter-shaped resist patterns of different openings on a same cylindrical metal base material.

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