Title: Colouration technique for aluminium alloy zipper
Application Number: 85107043 Application Date: 1985.09.27
Publication Number: 1010136 Publication Date: 1987.04.08
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C23C11/08,C23C11/14
Applicant(s) Name: Beijing Municipal Zipper Factory No.8 Address:
Inventor(s) Name: Hu Jia
Attorney & Agent: JIA SHUPING HE FANGLIANG
Abstract:
     The present invention concerns a process in which the oxidation film is formed by high speed anodization with sulphuric acid in a short time on the surface of the zipper, and residual acid solution after oxidation is removed by water washing and alkaline neutralization. Then aluminium alloy zippers with various colours and lusters are made by colouring them with organic dyes. They can improve the decorating effect when used on articles of daily use such as dresses, cases, bags and shoes, etc.
Time: 5