Surface treatment process for coloring metal articles
AssigneesShenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
InventorsLIANG-YU CAO, FA-HONG ZENG, LI-XIA HU
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Abstract
A surface treatment process for coloring metal articles includes following steps. In a first step, a metal article is anodized to form a first anodic oxide layer including a first portion and a second portion on the original metal article. In a second step, the anodized metal article is dyed. In a third step, the first portion of the first anodic oxide layer is removed from the anodized metal article to partially expose a metal body of the anodized metal article. In a fourth step, the exposed metal body of the anodized metal article is anodized to form a second anodic oxide layer. In a fifth step, the exposed metal body of the metal article is dyed.
Claims17
A surface treatment process for coloring metal articles, comprising:
- providing a metal article;
- anodizing the metal article, thereby forming a first anodic oxide layer on the original metal article;
- dyeing the anodized metal article;
- coating the first anodic oxide layer with a light curable ink;
- attaching a flexible film to the anodized metal article, with the flexible film covering the light curable ink coating, the flexible film having a transparent portion and a patterned portion, the patterned portion being exposed and opaque to light;
- exposing the metal article to cure the light curable ink coating covered by the transparent portion of flexible film, with the light curable ink coating covered by the patterned portion of flexible film remaining uncured;
- removing the uncured light curable ink coating, thereby the first anodic oxide layer having a first portion exposed to the environment and a second portion covered by the cured light sensitive coating;
- removing the first portion of the first anodic oxide layer form the anodized metal article, thereby exposing a metal body of the anodized metal article to the environment;
- anodizing the exposed metal body;
- and
- dyeing the exposed metal body.
A surface treatment process for coloring metal articles, comprising steps of:
- anodizing a metal article, thereby forming a first anodic oxide layer including a first portion and a second portion on the original metal article;
- dyeing the anodized metal article;
- removing a portion of the first anodic oxide layer from the anodized metal article to partially expose a portion of the metal body of the anodized metal article;
- anodizing the exposed metal body of the anodized metal article to form a second anodic oxide layer;
- and
- dyeing the exposed metal body of the metal article.
Dependencies are inferred from the claim text.