201224172 六、發明說明： 【發明所屬之技術領域】 [麵]本發明涉及一種銘製品及其製備方法。 [先前技術] _]缺銘合金因其質輕以及優良的機械加讀能，使得紹 及鋁合金被廣泛地應用於各種家用電器、汽車、電子產 品的外殼。 [0003]201224172 VI. Description of the invention: [Technical field to which the invention pertains] [Face] The present invention relates to a product of the name and a method for preparing the same. [Prior Art] _] Due to its light weight and excellent mechanical reading energy, the alloy is widely used in various household appliances, automobiles, and electronic products. [0003]
[0004] 為了獲得較好的外觀效果，通常藉由陽極氧化、 裝、噴漆等表面裝飾處理於料衫金產品表面形“ 種顏色的裝飾層，然：，經上述處理獲得的骏飾層色 通常係固定不變的，缺之變化及多樣性。隨著消費2 的提南，這種外觀已經錢滿足消費者對該等產品的外 觀追求。 【發明内容】 ==品有必要提供一種顏色多變、具有較佳裝飾效[0004] In order to obtain a better appearance effect, the surface decoration of the gold-plated product is usually treated by surface decoration such as anodizing, charging, painting, etc., and the decorative layer of the color is obtained. Usually fixed, lack of change and diversity. With the consumption of the South 2, this appearance has already met the consumer's pursuit of the appearance of the product. [Summary] == Product is necessary to provide a color Changeable, better decorative effect
[0005] 另外，有必要提供一種上述鋁製品的製備方法 [〇_ _製品，包括銘基體及形成於該|g基體上的無色 明真空鑛膜層，該|g基體包括經化學钱刻形成的多孔表 面，該多孔表面分佈有多個奈米孔，所述奈米孔的深度 分佈在20〜300nm範圍内，該真空鑛膜層形成於該多孔又 [0007] [0008] 種銘製品的製備方法 ，包括如下步驟： 099141854 提供銘基^; 表單編號Αοκη 第3頁/共1〇頁 0992072732-0 201224172 [0009] 化學蝕刻處理，以使該鋁基體形成多孔表面，該多孔表 面分佈有多個奈米孔，所述奈米孔的深度分佈在 20〜300nm範圍内，孔徑分佈在30〜250nm範圍内； [0010] 真空鍍膜處理，以於該多孔表面形成一層無色透明的真 空鍍膜層。 [0011] 相較於習知技術，上述銘製品先藉由化學#刻處理在該 鋁基體上形成多孔表面，再藉由真空鍍膜方法於該多孔 表面形成該無色透明的真空鍍膜層。由於多孔表面分佈 有所述奈米孔，使該真空鍍膜層在不同的位置具有不同 的厚度，即真空鍍膜層於所述奈米孔處的厚度大於未形 成奈米孔處的厚度。於光的照射下，不同厚度的真空鍍 膜層對光線的反射與折射的光程差不同，故不同位置處 的真空鍍膜層可形成不同顏色的干涉光，使得同一鋁製 品表面呈現多種顏色，具有較佳的裝飾效果。該鋁製品 的製備方法工藝簡單。 【實施方式】 [0012] 請參閱圖1，本發明較佳實施例的銘製品100包括鋁基體 10及形成於鋁基體10上的一層無色透明的真空鍍膜層30 〇 [0013] 鋁基體10的材料為純鋁或鋁合金。 [0014] 鋁基體10包括經化學蝕刻形成的多孔表面12，該多孔表 面12上分佈有多個奈米孔122。所述奈米孔122的孔徑分 佈在30〜25 0nm範圍内，較佳為30〜150nm。奈米孔122的 深度分佈在20〜300nm範圍内，較佳為20〜100nm。 099141854 表單編號A0101 第4頁/共10頁 0992072732-0 201224172 [0015] ❹ 該真空鍍膜層30形成於鋁基體10的多孔表面12上。由於 多孔表面12分佈有所述奈米孔122，真空鍍膜層30將所述 奈米孔122部分或完全填充，使真空鍍膜層30在不同的位 置具有不同的厚度，即真空鍍膜層30對應於奈米孔122位 置的厚度大於未形成奈米孔122位置的厚度。真空鍍膜層 30可以由金屬、金屬氧化物或非金屬氧化物形成，其中 金屬可以為鈦、鉻、鋁、鋅及鍅等，金屬氧化物可以為 鈦、鉻、鋁、鋅及锆的氧化物，非金屬氧化物可以為二 氧化矽。當真空鍍膜層30由所述金屬形成時，其厚度在 50~150nm範圍内，其厚度為150mn以下時，真空鍍膜層 30接近無色透明，超過15 Onm時，真空鍍膜層30自身的 顏色在肉眼觀察下開始變得較為明顯。當真空鍍膜層30 由所述金屬氧化物或非金屬氧化物形成時，其厚度在 50nm至2；wm範圍内。 [0016] Ο 上述鋁製品100在形成該真空鍍膜層30前，具有多孔表面 12的鋁基體10為鋁材原色。當多孔表面12形成該真空鍍 膜層30後，由於多孔表面12分佈有所述奈米孔122，使真 空鍍膜層30在不同的位置具有不同的厚度，即真空鍍膜 層30於奈米孔122處的厚度大於未形成奈米孔122處的厚 度。在光的照射下，不同厚度的真空鍍膜層30對光線的 反射與折射的光程差不同，故不同位置處的真空鍍膜層 30可形成不同顏色的干涉光，使得同一鋁製品100表面呈 現多種顏色。 [0017] [0018] 上述鋁製品100的製備方法，包括如下步驟： 首先，提供該鋁基體10。 099141854 表單編號A0101 第5頁/共10頁 0992072732-0 201224172 [0019] 對鋁基體10進行預處理。預處理包括對鋁基體10除油及 化學拋光。其中，所述除油步驟可以用丙酮清洗大約5分 鐘後，於乙醇中超聲振動大約30min，然後用水清洗。所 述化學拋光所用拋光液可以用體積比為8 : 1 : 1的磷酸（ 品質濃度為85%)、硝酸及水的混合溶液，拋光時拋光液 溫度在70~80°C之間，拋光時間大約為5分鐘。 [0020] 對經上述預處理的鋁基體10進行化學蝕刻處理，以在鋁 基體10上形成所述多孔表面12。該化學蝕刻處理的條件 為：採用含20〜50g/L三氣化鐵及4.2~5.4mol/L鹽酸的 水溶液為蝕刻液，蝕刻液溫度為20〜40°C，.蝕刻時間為 3〜15秒，蝕刻過程中可對蝕刻液進行攪拌。經上述化學 蝕刻處理形成的多孔表面12形成所述多個奈米孔122。 [0021] 對經化學蝕刻的鋁基體10進行真空鍍膜處理，以在該多 孔表面12形成該無色透明的真空鍍膜層30。該真空鍍膜 方法可採用濺鍍、蒸鍍或離子鍍。該步驟具體工藝可採 用相應方法的常規鍍膜工藝，鍍膜過程中藉由控制鍍膜 時間來控制真空鍍膜層30的厚度在所述範圍内，以保證 該真空鍍膜層30為無色透明。 [0022] 上述鋁製品的製備方法在形成無色透明的真空鍍膜層30 前，先藉由化學蝕刻處理在鋁基體10表面形成多孔表面 12，由於多孔表面12分佈有所述奈米孔122，使真空鍍膜 層30在不同的位置具有不同的厚度，在光的照射下，不 同厚度的真空鍍膜層30對光線的折射與反射產生的光程 差不同，不同的光程差可產生不同顏色的干涉光。故， 不同位置處的真空鍍膜層30可產生不同顏色之干涉光， 099141854 表單編號A0101 第6頁/共10頁 0992072732-0 201224172 使得同一鋁製品呈現多種顏色，具有較佳的裝飾效果 該鋁製品的製備方法工藝簡單。 【圖式簡單說明】 [0023] [0024] [0025] [0026] ❹ [0027] [0028] 圖1為本發明較佳實施例的鋁製品的刳視示意圖。 【主要元件符號說明】 _ 鋁製品：100 銘基體· 10 多孔表面：12 奈米孔：122 真空鍍膜層：30 Ο 099141854 表單編號Α0101 第7頁/共10頁 0992072732-0[0005] In addition, it is necessary to provide a method for preparing the above aluminum product [〇_ _ product, including a base substrate and a colorless vacuum mineral film layer formed on the |g substrate, the |g substrate including chemically engraved a porous surface having a plurality of nanopores distributed therein, wherein the nanopore has a depth distribution in the range of 20 to 300 nm, and the vacuum mineral film layer is formed in the porous (0007) The preparation method comprises the following steps: 099141854 Providing a Mingji^; Form No. Αοκη Page 3/Total 1 Page 0992072732-0 201224172 [0009] Chemical etching treatment to form a porous surface of the aluminum matrix, the porous surface is distributed The nanopore has a depth distribution in the range of 20 to 300 nm and a pore size distribution in the range of 30 to 250 nm; [0010] a vacuum coating treatment to form a colorless transparent vacuum coating layer on the porous surface. [0011] Compared with the prior art, the above-mentioned Ming product first forms a porous surface on the aluminum substrate by chemical etching, and then forms the colorless and transparent vacuum coating layer on the porous surface by a vacuum coating method. Since the porous surface is distributed with the nanopore, the vacuum coating layer has different thicknesses at different positions, i.e., the thickness of the vacuum coating layer at the nanopore is greater than the thickness at which the nanopore is not formed. Under the illumination of light, the vacuum coating layers of different thicknesses have different optical path differences between light reflection and refraction, so the vacuum coating layers at different positions can form different colors of interference light, so that the surface of the same aluminum product presents multiple colors, Better decorative effect. The preparation method of the aluminum product is simple in process. [0012] Referring to FIG. 1, a preferred article 100 of the preferred embodiment of the present invention includes an aluminum substrate 10 and a colorless transparent vacuum coating layer 30 formed on the aluminum substrate 10. [0013] The aluminum substrate 10 The material is pure aluminum or aluminum alloy. [0014] The aluminum substrate 10 includes a porous surface 12 formed by chemical etching, and a plurality of nanopores 122 are distributed on the porous surface 12. The pore size of the nanopore 122 is distributed in the range of 30 to 250 nm, preferably 30 to 150 nm. The depth of the nanopore 122 is in the range of 20 to 300 nm, preferably 20 to 100 nm. 099141854 Form No. A0101 Page 4 of 10 0992072732-0 201224172 [0015] The vacuum coating layer 30 is formed on the porous surface 12 of the aluminum substrate 10. Since the porous surface 12 is distributed with the nanopore 122, the vacuum coating layer 30 partially or completely fills the nanopore 122, so that the vacuum coating layer 30 has different thicknesses at different positions, that is, the vacuum coating layer 30 corresponds to The thickness of the nanopore 122 position is greater than the thickness at which the nanopore 122 is not formed. The vacuum coating layer 30 may be formed of a metal, a metal oxide or a non-metal oxide, wherein the metal may be titanium, chromium, aluminum, zinc, and antimony, and the metal oxide may be an oxide of titanium, chromium, aluminum, zinc, and zirconium. The non-metal oxide may be cerium oxide. When the vacuum coating layer 30 is formed of the metal, the thickness thereof is in the range of 50 to 150 nm, and when the thickness is 150 nm or less, the vacuum coating layer 30 is nearly colorless and transparent, and when it exceeds 15 Onm, the color of the vacuum coating layer 30 itself is in the naked eye. The observation began to become more obvious. When the vacuum plating layer 30 is formed of the metal oxide or non-metal oxide, its thickness is in the range of 50 nm to 2; [0016] Ο The aluminum substrate 100 having the porous surface 12 is an aluminum primary color before the vacuum coating layer 30 is formed. After the porous surface 12 forms the vacuum coating layer 30, since the porous surface 12 is distributed with the nanopore 122, the vacuum coating layer 30 has different thicknesses at different positions, that is, the vacuum coating layer 30 is at the nanopore 122. The thickness is greater than the thickness at which the nanopore 122 is not formed. Under the illumination of light, the vacuum coating layer 30 of different thicknesses has different optical path difference between reflection and refraction of light, so the vacuum coating layer 30 at different positions can form interference light of different colors, so that the surface of the same aluminum product 100 exhibits various kinds. colour. [0018] The method for preparing the aluminum article 100 described above includes the following steps: First, the aluminum substrate 10 is provided. 099141854 Form No. A0101 Page 5 of 10 0992072732-0 201224172 [0019] The aluminum substrate 10 is pretreated. The pretreatment includes degreasing and chemical polishing of the aluminum substrate 10. Wherein the degreasing step can be washed with acetone for about 5 minutes, ultrasonically vibrated in ethanol for about 30 minutes, and then washed with water. The polishing liquid used for the chemical polishing can be a mixed solution of phosphoric acid (quality concentration: 85%), nitric acid and water in a volume ratio of 8:1:1, and the polishing liquid temperature is between 70 and 80 ° C during polishing, and the polishing time is It's about 5 minutes. [0020] The aluminum substrate 10 subjected to the above pretreatment is subjected to a chemical etching treatment to form the porous surface 12 on the aluminum substrate 10. The chemical etching treatment is carried out by using an aqueous solution containing 20 to 50 g/L of triironized iron and 4.2 to 5.4 mol/L of hydrochloric acid as an etching solution, and the etching liquid temperature is 20 to 40 ° C. The etching time is 3 to 15 In seconds, the etching solution can be stirred during the etching process. The porous surface 12 formed by the above chemical etching treatment forms the plurality of nanoholes 122. [0021] The chemically etched aluminum substrate 10 is subjected to a vacuum coating process to form the colorless and transparent vacuum coating layer 30 on the porous surface 12. The vacuum coating method can be performed by sputtering, evaporation or ion plating. The specific process of this step can adopt the conventional coating process of the corresponding method, and the thickness of the vacuum coating layer 30 is controlled within the range by controlling the plating time during the coating process to ensure that the vacuum coating layer 30 is colorless and transparent. [0022] The method for preparing the aluminum article described above first forms a porous surface 12 on the surface of the aluminum substrate 10 by chemical etching before forming the colorless and transparent vacuum coating layer 30, and the porous surface 12 is distributed with the nanopore 122. The vacuum coating layer 30 has different thicknesses at different positions. Under the illumination of light, the vacuum coating layer 30 of different thicknesses has different optical path differences caused by the refraction and reflection of light, and different optical path differences can generate interference of different colors. Light. Therefore, the vacuum coating layer 30 at different positions can generate interference light of different colors, 099141854 Form No. A0101 Page 6 / Total 10 Page 0992072732-0 201224172 Makes the same aluminum product exhibit multiple colors and has better decorative effect. The preparation method is simple. BRIEF DESCRIPTION OF THE DRAWINGS [0028] FIG. 1 is a schematic perspective view of an aluminum article in accordance with a preferred embodiment of the present invention. [Main component symbol description] _ Aluminum product: 100 Inscription base · 10 Porous surface: 12 Nano hole: 122 Vacuum coating: 30 Ο 099141854 Form number Α 0101 Page 7 / Total 10 pages 0992072732-0