New trends in the development of decorative surface treatment processes

New trends in the development of decorative surface treatment processes

【China Aluminum Network】 Decorative surface treatment technology refers to the surface of the product with different colors, materials, surface treatment methods and various combinations of decoration, so that products in a unique and personalized way to attract different consumer groups. Decoration can enhance the value of industrial products and commodities. The surface decoration of products involves mechanical properties (such as hardness, sliding, etc.), electrical properties (such as conductivity, electromagnetic wave shielding, and semiconductor properties), and coating (metal color can make products have a sense of quality. ), color, texture processing, etc.

As the appearance design and texture of industrial products are increasingly sophisticated and fashionable, the introduction of scientific and technological aesthetics to enhance the value of the industry is the key to the next stage of industrial development. Surface treatment has always been regarded as a “cosmetics product for industrial products”. Through the continuous innovation of decorative surface treatment technology, the surface appearance of products can be improved, which can effectively meet the growing demand for creativity and beauty of consumers, and inject a new aesthetic aesthetics into the economy. Shares of new vitality.

Several decorative surface treatment technology trends

Film

According to information released by Fuji Economy, the scale of film decoration used in smart phones, tablets, auto parts, and consumer products will expand further. The main trends in film decoration are as follows:

1) The technology of film lamination and transfer decoration has been continuously expanded.

2) The development of film substrates, such as MMA, easy-to-mold PET, etc.

3) The function of film decoration has been increasingly improved, and many manufacturers have introduced diversified, multi-functional films.

4) Diversification of design, such as printing, color injection, coating, evaporation, etc.

5) The IML/IMD molding technology has been further developed to develop double-sided bonding.

6) 3D transfer decoration technology has been widely applied to meet the needs of different shapes and diversification.

2.3D digital texture bite flowers

1) Background

The traditional method of die biting flowers is to form patterns on the finished molds by etching. However, the traditional method of biting flowers, which allows local corrosion of the mold to form irregularities, cannot produce deeper irregularities. In addition, what kind of embossing is still formed depends on the craftsman's intuition and skills, and it is difficult to predict the problem of completion. However, if the garniture processing is outsourced, there will be many restrictions on the degree of design freedom. For example, in most cases, it is based on the models already prepared by the garniture makers, and it is therefore difficult to produce innovative designs.

2) The advantages and applications of 3D digital texture biting flowers

The 3D texture can not only be in the plane, but also can form a three-dimensional texture at any height on the surface. The technology uses 3D scanners and 3D model creation software "Freeform" and other digital tools to create texture data, and then adds it to the product's CAD/CAM data to make a mold. Because the texture is directly engraved on the mold, it is molded only once. A rich 3D texture can be formed.

3D texture technology is used to make the iPhone case. 3D textures provide a series of processes for developing new patterns through digital data and applying them to resin molded products.

Not only injection molding, but also blow-molded packaging development can easily achieve complex textures not previously available. In addition to molds that can only replace texture surfaces, customers are provided with the ability to add rich textures at low cost to existing shapes of bottles. In combination with other processing technologies such as resin materials and in-mold molding, 3D texture technology will bring more expressiveness, including coloring and texture.

3. Bionic color

Color bionic is the color of human products imitating nature's creatures, such as nature's beetles, soap bubbles, and stones. Color bionics is based on the spectral range of the visible light of the human eye. The surface of the material is perceived by the human eye due to the reflection of light. Similar to texture bionics, color bionic physiology depends on the perception of human senses, but its essence lies in the symbolic meaning of psychological perception.

Here are some of the thin film products made using color bionic technology:

1) Nano-multilayer film

Metallic, butterfly, and other color representations, such as Toray PICASUS. PICASUS is different from the electroplating and evaporation methods in that it uses no metal at all, so there is no need to worry about rust or peeling. Not only is it convenient for recycling, it also solves the environmental problems of electroplating factories.

In addition, when light is irradiated from the inside, light can pass through, so text and graphics can be displayed. It is usually metal-lustrous and can be used for door handles, switchboards, and dashboards that display text only when necessary. Trade name "flash stainless steel." The film alternately overlaps the higher refractive index PET (polyethylene terephthalate) and the lower PET to form a stack structure of about 1000 layers. The overall thickness is 200 μm. For a simple calculation of 1000 layers, the thickness of each layer is about 0.2 μm. However, the thickness of the layers is not the same, but one end is thin and one end is thick and alternately distributed at equal intervals. When the layer reaches a certain thickness, color appears due to the interference phenomenon of light. When the layers are distributed at equal intervals, all the visible lights can be uniformly reflected, so that a metallic luster appears.

The material was extruded from 500 nozzles distributed like a comb. High-index PET nozzles and low-index PET nozzles are staggered to form a "comb" shape. The two resins are extruded in a staggered pattern to form a thick film. Instead of two-color molding, "Kiiro Shaping" is used. After thinning, it is reduced to 200 μm.

The above-made film is placed in a mold for forming, and the finished product is finished. A certain degree of stretching can be performed and a curved surface can be made in the preliminary forming stage. However, when the stretching exceeds 150%, the layers become thin, and the reflection wavelength is deviated to appear pale green.

2) Multilayer thin film deposition

The thin-walled vacuum coating produces a rainbow of colors that change from one direction to the next. Such as Tsuda industry.

3) Pattern decoration of random rough surface

4) Bionic color paint

Stainless Steel Analogue Junction Box

JXHS series Junction Box advanced technology during production, stresses the details during design, implements design standard during processing, and has high consistence of product quality. It has various features such as strong damp proof, anti-corrosion and anti-electromagnetic capacities and high adjustment accuracy, and is suitable for various adverse environments. Its main advantages include:
The product uses own mold to make technologic design, the housing uses aluminum and silicon alloy and upper protrusion and lower sinking structure is used so as to ensure good sealing performance; protective grade reaches IP 68.
Main parts are imported, wiring bar is welded with precise anti-surge electronic components, which can prevent Load Cell damage caused by lightning and power grid surge voltage.
Whole device uses stainless steel grounding bolts to ensure reliable grounding during operation.
Assembly of junction box uses not-loose screws so as to avoid loss during load cell wring.
Wiring board uses combined screws for assembly, which are convenient for removal.
In order to ensure protective effect, force and diameter of tightening parts have introduction.

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SHANDONG JINZHONG SCIENCE & TECHNOLOGY GROUP COMPANY LIMITED , https://www.chinagoldbell.com

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