Invention Publication
- Patent Title: MANUFACTURING METHOD OF ALUMINUM-BASED ARTICLE WITH MULTI-ANGLE VISUAL COLOR CHANGE CHARACTERISTICS
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Application No.: US18634062Application Date: 2024-04-12
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Publication No.: US20240344229A1Publication Date: 2024-10-17
- Inventor: WEN-DING CHEN , BO-WEI LAI , Shih-Wei Lee
- Applicant: CATCHER TECHNOLOGY CO., LTD.
- Applicant Address: TW TAINAN CITY
- Assignee: CATCHER TECHNOLOGY CO., LTD.
- Current Assignee: CATCHER TECHNOLOGY CO., LTD.
- Current Assignee Address: TW TAINAN CITY
- Priority: TW 2114016 2023.04.14
- Main IPC: C25D11/12
- IPC: C25D11/12 ; C25D11/08 ; C25D11/10 ; C25D11/24

Abstract:
A manufacturing method of an aluminum-based article having multi-angle visual color change characteristics is provided. The manufacturing method includes the steps of providing an aluminum-based article and performing a first anodizing treatment that at least includes cycling a first operation mode 50 times to 80 times on the aluminum-based article. The first operation mode includes a first constant-current density stage followed by a current density continuous-increasing stage. In the first constant-current density stage, a first current density is controlled to be constant in a range from 0.1 A/dm2 to 1.0 A/dm2 for 60 seconds to 120 seconds. In the current density continuous-increasing stage, the first current density is controlled to continuously increase by 5 to 10 increments, and each of the increments is in a range from 0.1 A/dm2 to 0.5 A/dm2 and within a time period from 3 seconds to 10 seconds.
Public/Granted literature
- US3147131A Method for treating titanium dioxide pigments Public/Granted day:1964-09-01
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