Complex salt compound, dye composition, coloring agent and coloring method for anodized aluminum, and method for producing compound
A technology of dye composition and manufacturing method, which is applied in the fields of complex salt compound, dye composition, colorant for anodic aluminum oxide and coloring and the manufacture of the compound, which can solve the problems of less color types, aluminum dyeing property and light fastness. Achieve the effect of excellent heat resistance
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Embodiment
[0205] Hereinafter, although an Example demonstrates this invention concretely, it is not limited to the following Example.
[0206] [Synthesis Example 1: Synthesis of Compound (A-1)]
[0207] (Preparation of diazo component)
[0208] 20 g of 2-amino-4-nitrophenol, 140 mL of water, and 11 g of 35% hydrochloric acid were placed in a reaction vessel. Stirring the obtained reaction liquid at 10 degreeC, 23 g of 40 weight% sodium nitrite aqueous solutions were dripped, and it was made to react for 1 hour after that. Thus, a diazo component liquid was obtained.
[0209] (Preparation of coupler components)
[0210] 30 g of 8-amino-1-hydroxynaphthalene-3,6-disulfonic acid, 200 mL of water, and 18.9 g of a 24% by weight aqueous sodium hydroxide solution were placed in a reaction container. The resulting reaction liquid was stirred at 10° C. for 1 hour to obtain a coupling agent component liquid.
[0211] (diazo coupling reaction)
[0212] The diazo component liquid was put into ...
Embodiment 1
[0239] Anodizing treatment was performed on an aluminum substrate by the following procedure to produce colored aluminum. In addition, in the process of anodizing and dyeing, two kinds of dyeing conditions which changed the processing time and dye compound density|concentration were set.
[0240] (Degreasing) Prepare a mixture of 150 mL of a degreasing agent (manufactured by Okuno Pharmaceutical Co., Ltd., Top ADD-100), 70 mL of 98% sulfuric acid, and 1,000 mL of water in a container as a degreasing solution, and dip the dyed material cut into an appropriate size. The aluminum substrate was degreased at 60° C. for 3 minutes, and washed with water after the treatment.
[0241] (Anodic oxidation) Use 98% sulfuric acid to prepare 180g / L electrolyte, connect the aluminum substrate to the electrode of the electrolysis device, immerse it in the electrolyte tank, at a temperature of 20±1°C and a current density of 1.0A / dm 2 Anodization was performed under the conditions of the follo...
Embodiment 2～8
[0255] [Examples 2 to 8, Comparative Examples and Reference Examples]
[0256] Except having used the compound shown in Table 1 instead of compound (A-1), it carried out similarly to Example 1, and produced the colored aluminum plate, and evaluated hue and light resistance. The measurement results are summarized in Table 1.
[0257] [Table 1]
[0258]
[0259] According to the results in Table 1, by using the anodized aluminum colorant containing the dye composition containing the compound of the present invention, it is possible to color cyan, cyan, light green, green, black green, light cyan, cyan, dark cyan, black on aluminum. Green and other turquoise systems form a film with high light resistance. The light fastness of the compound of the Example was not inferior to the film produced using the conventional black pigment (Q-1) or (Q-2). On the other hand, the dyes of Comparative Examples were inferior in light resistance.
[0260]
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Abstract
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