Surface treatment agent for dyed anode oxidized film of aluminum or aluminum alloy, and surface treatment method, sealing treatment method, and article using said agent
A surface treatment agent and surface treatment technology, applied in the direction of surface reaction electrolytic coating, electrolytic coating, coating, etc., can solve the problems of color fading, no research, no research, etc., to achieve excellent light resistance, inhibition of fading, dyeing Excellent fixation effect
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Embodiment 1~5
[0124] Each of the anodized-dyed test pieces made using the dyes shown in Tables 1 and 2 was mixed with 0.4 g of metal oxide salt containing 1.2 g / L of ammonium fluorozirconate, 1 g / L of glycine, and 0.4 g of fluorine-free metal oxide salt. / L and adjusted to pH 2.5 with nitric acid in a surface treatment agent (bath temperature: 45° C.) for 3 minutes, followed by water washing to perform surface treatment. Next, it was immersed in a sealing treatment agent (bath temperature: 92° C.) consisting of an aqueous solution of pH 5.7 containing 40 ml / L of Okuno Pharmaceutical Co., Ltd. Top Seal H-298 for 15 minutes, washed with water, and dried.
Embodiment 6
[0126] Except that no fluorine-free metal oxide salt was added, in the same manner as in Examples 1 to 5, the anodized-dyed test piece was subjected to surface treatment, dipped in a sealing treatment agent, and washed with water. and dry.
Embodiment 7
[0128] The pH of the surface treatment solution was adjusted to 3.0, except that, in the same manner as in Examples 1 to 5, the anodized-dyed test piece was surface-treated, immersed in a sealing treatment agent, washed with water and dry.
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