Silver powder preparation method

Abstract

The invention discloses a silver powder preparation method, and relates to the technical field of silver powder preparation. Comprising the following raw materials: cellulose, latex powder, starch mud, titanium dioxide, 821 putty powder and water. Wherein the mass ratio of the cellulose to the latex powder is 1: 0.5, the mass ratio of the starch mud to the water is 1: 0.4-0.6, the mass ratio of the titanium dioxide to the silver powder is 1: 0.5, and the mass ratio of the 821 putty powder to the water is 1: 0.5. By optimizing the raw material ratio and the preparation steps, the preparation process of the silver powder is simplified, the production cost is reduced, the prepared silver powder has the flashing effect, is easy to ignite and not prone to fading, the market competitiveness of the product is improved, the silver powder is directly brushed after being evenly mixed, complex treatment is not needed, mastering and operation are easy, water with the specific ratio is adopted, and the production cost is reduced. The drying process of the coating is accelerated, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of silver powder preparation, in particular to a method for preparing silver powder. Background Art

[0002] The traditional silver powder preparation process often involves complex raw material ratios, cumbersome preparation steps and high energy consumption, which not only increases production costs but also limits the improvement of production efficiency. At the same time, the application of traditional silver powder on foil also faces problems such as easy shedding, easy fading and long drying time, which seriously affects the decorative effect and service life of the product.

[0003] The preparation of silver powder in the prior art usually relies on the mixing and reaction of multiple chemical raw materials. The ratio and reaction conditions of these raw materials are often difficult to accurately control, resulting in unstable performance of the prepared silver powder and unsatisfactory flash effect. In addition, the drying step in the traditional preparation process usually takes a long time, and cracks or discoloration are prone to occur during the drying process, further affecting the quality and aesthetics of the product. Summary of the invention

[0004] The object of the present invention is to provide a method for preparing silver powder to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for preparing silver powder, comprising the following raw materials:

[0006] Cellulose, latex powder, starch mud, titanium dioxide, 821 putty powder, water;

[0007] The mass ratio of cellulose to latex powder is 1:0.5, the mass ratio of starch mud to water is 1:0.4-0.6, the mass ratio of titanium dioxide to silver powder is 1:0.5, and the mass ratio of 821 putty powder to water is 1:0.5.

[0008] As a specific solution of the technical solution of the present application, the mass ratio of the water to the reference flash component is 15:1.

[0009] As a specific solution of the technical solution of this application, the method comprises the following steps:

[0010] Mix cellulose and latex powder evenly to form a basic binder;

[0011] Mix titanium dioxide and glitter ingredients evenly to form a glitter mixture;

[0012] Mix 821 putty powder with water to obtain putty slurry;

[0013] Mix the base binder, starch mud, glitter mixture, 821 putty slurry and additional water and stir well to form the final silver powder paint.

[0014] As a specific solution of the technical solution of the present application, the amount of water is adjusted according to the specific water absorption of the starch slurry to ensure that the starch slurry reaches a suitable consistency.

[0015] A method for using silver powder, wherein the silver powder paint prepared according to any one of claims 1 to 4 is used, the prepared silver powder paint is directly applied on a pretreated foil, and the foil decorative material having a flashing effect, being easy to ignite and not easy to fade is obtained by drying naturally or accelerating drying with heating.

[0016] As a specific solution of the technical solution of the present application, the foil is a foil material that has been pretreated to enhance the adhesion of the coating.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The silver powder preparation method simplifies the preparation process of the silver powder and reduces the production cost by optimizing the raw material ratio and the preparation steps. The prepared silver powder has a flashing effect, is easy to ignite, and is not easy to fade, thereby improving the market competitiveness of the product. After being evenly mixed, it can be directly applied without complicated treatment and is easy to master and operate. The specific ratio of water is used to accelerate the drying process of the paint and improve production efficiency. DETAILED DESCRIPTION

[0019] Example 1: Raw material preparation: cellulose 100g, latex powder 50g, starch mud 100g, water 40-69g, titanium dioxide 100g, silver powder 50g, 821 putty powder 100g, additional water 150g;

[0020] Preparation steps: 100g cellulose and 50g latex powder are mixed evenly to form a basic binder;

[0021] Mix 100g of titanium dioxide and 50g of silver powder evenly to form a glitter mixture;

[0022] Mix 100 g of 821 putty powder with 50 g of water to obtain putty slurry;

[0023] Mix the base binder, 100g starch mud, glitter mixture, putty slurry and 150g additional water and stir well to form the final silver powder paint.

[0024] Use of silver powder: Apply the prepared silver powder paint on the treated foil, dry it naturally or accelerate the drying with heating, and obtain a foil decorative material with a flashing effect, easy to ignite and not easy to fade.

[0025] Example 2: The difference from Example 1 is that the water absorption of starch slurry is adjusted

[0026] Based on Example 1, if the starch slurry has strong water absorption, the amount of additional water added can be appropriately reduced, such as reducing the additional water to 130 g, to ensure that the starch slurry reaches a suitable consistency.

[0027] Embodiment 3: The difference from Embodiment 1 is the different flashing effect:

[0028] In order to obtain different flash effects, the ratio of titanium dioxide to silver powder can be adjusted. For example, the titanium dioxide can be reduced to 80g and the silver powder can be increased to 70g. The mass ratio of titanium dioxide to silver powder is about 1:0.875 to obtain a stronger flash effect.

[0029] Embodiment 4: Drying by heating different from embodiment 1:

[0030] On the basis of Example 1, heating is used to accelerate the drying process. The coated foil decorative material is placed in an oven and dried at 50 degrees Celsius for 2 hours to obtain a better drying speed and a more uniform drying effect.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A method for preparing silver powder, characterized in that: The raw materials include: Cellulose, latex powder, starch mud, titanium dioxide, 821 putty powder, water; The mass ratio of cellulose to latex powder is 1:0.5, the mass ratio of starch mud to water is 1:0.4-0.6, the mass ratio of titanium dioxide to silver powder is 1:0.5, and the mass ratio of 821 putty powder to water is 1:0.

5.

2. A method for preparing silver powder according to claim 1, characterized in that: The mass ratio of the water to the reference flash component is 15:

1.

3. A method for preparing silver powder according to claim 1, characterized in that: The steps include: Mix cellulose and latex powder evenly to form a basic binder; Mix titanium dioxide and glitter ingredients evenly to form a glitter mixture; Mix 821 putty powder with water to obtain putty slurry; Mix the base binder, starch mud, glitter mixture, 821 putty slurry and additional water and stir well to form the final silver powder paint.

4. A method for preparing silver powder according to claim 1, characterized in that: The amount of water is adjusted according to the specific water absorption of the starch slurry to ensure that the starch slurry reaches a suitable consistency.

5. A method for using silver powder, characterized in that: The silver powder paint prepared as described in any one of claims 1 to 4 is used, and the prepared silver powder paint is directly applied to the pretreated foil, and dried naturally or accelerated by heating to obtain a foil decorative material with a flashing effect, which is easy to ignite and not easy to fade.

6. A method for using silver powder according to claim 5, characterized in that: The foil is a foil material that has been pre-treated to enhance the adhesion of the coating.