Method of producing surface coatings on articles, and article having a surface coating
AssigneeFaber-Castell AG
InventorsUdo Beck, Walter Oetter, Gerhard Lugert
Life of this patent
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Abstract
A method for producing surface coatings on articles, such as stick surfaces, coats at least a part of the surface with a coating. The coating has expandable particles. One surface region of the coating is treated so that the particles expand, while another surface region of the coating remains untreated. The corresponding article, such as a stick, has a surface provided at least partly with a coating with said expandable particles. The particles of the coating are expanded in one surface region thereof and unexpanded in another surface region. The former surface region projects beyond the surface of the latter surface region.
Claims16
A method of producing a surface coating on an article, which comprises:
- providing an article,
- providing a coating with thermally expandable particles and applying the coating to at least one portion of a surface of the article;
- and
- heating a first partial surface region of the coating to cause the particles to expand while a second partial surface region of the coating remains unheated, to thereby cause the first partial surface region with the expanded particles to project beyond a surface of the second partial surface region with unexpanded particles to form a raised pattern relative to the second partial surface region, with the expanded particles in the first partial surface region having a greater particle size than the unexpanded particles in the second partial surface region.
An article, comprising:
- an article body having a surface;
- a coating of expandable particles formed on at least a portion of said surface;
- wherein said expandable particles are expanded in a first partial surface region of said coating, said expandable particles remaining in an unexpanded form in a second partial surface region of said coating, with said expanded particles in said first partial surface region having a greater particle size than said unexpanded particles in said second partial surface region and said first surface region with said expanded particles project beyond the surface of said second surface region and form a raised structure relative to said second partial surface region.
Dependencies are inferred from the claim text.