A new method of decorative pattern on the surface

New methods for decorative patterns on the surface of metal products

common methods for decorative patterns on the surface of metal products

there are various methods for making patterns and patterns on the surface of metal products, including coating various decorative films or self-adhesive papers on the surface of metal products, decorating the surface of metal products through chemical methods such as etching, electroplating, etc., or directly spraying or directly through silk printing, relief offset printing Pad printing and inkjet printing make the surface of metal products decorated. Various methods have their advantages, but they also have shortcomings or limitations. If various decorative films or self-adhesive papers are pasted, the decorative films or self-adhesive papers are easy to separate and damage the pictures and texts; Using chemical methods, the process is complex, time-consuming and labor-consuming, requiring the use of special instruments and equipment, and the corresponding manufacturing costs also increase; Painting directly on the surface of metal products requires high-temperature baking, which is difficult to control, poor quality and efficiency, poor pattern reproducibility, and high cost. This process is rarely used now; Directly through the form of silk screen printing, although the ink layer is thick, the texture is good, and the ink is widely used, which can be used for curved surface printing, it is difficult to get the fine layered pattern of 175 lines, especially before printing, if the surface is not properly treated, the pictures and texts are easy to separate. In addition, the picture and text layer also needs to be baked at high temperature, while the pictures and texts baked at high temperature lack bright colors

new method for decorative patterns on the surface of metal products

now, Shantou Dongtian transfer printing Co., Ltd. can easily form various graphics and texts on the surface of metal products by using the heat transfer production process

in recent years, with the continuous development of XPS industry, the production process of heat transfer printing mentioned here is to transfer the pictures and texts printed on the transfer film to the surface of metal products to be decorated by heating and pressing. Its printing method can be divided into two parts: transfer film printing and transfer processing

1. Transfer film printing

the protective layer, graphic layer and adhesive layer are printed on the pet carrier film by intaglio printing, flexographic printing or silk printing. In order to make the picture and text have metal effect, a vacuum aluminum plating layer can be added between the picture and text layer and the adhesive layer to form a decorative layer together with the picture and text layer. In order to make the picture and text have the function of laser anti-counterfeiting decoration, any layer of the decorative layer or protective layer can be molded to make it have a three-dimensional visual effect

2. Transfer processing

heat and pressurize the heat transfer machine to transfer the graphic decorative layer on the transfer film to the surface of the metal products to be decorated, and the transfer is completed at one time

in order to make the combination between the graphic decorative layer and the surface of metal products more solid, an organosilicon oxide film can also be formed on the surface of metal products first

advantages of heat transfer printing on the surface of metal products

using heat transfer printing production process to decorate the surface of metal products has the following advantages:

1 Strong adhesion and durable wear resistance. Because the graphic decorative layer is fastened on the surface of metal products through adhesive, and the surface is smooth, the graphic decorative layer is not easy to fall off, and the adhesive layer can also be better combined with the metal surface by changing its formula or forming a multi-layer adhesive layer through multiple coating, so that the graphic decorative layer is more firmly attached to the metal surface; The protective layer can also protect the graphic decoration layer, making the graphic decoration wear-resistant and weather resistant

2. Improve the quality of products and increase added value. In particular, the transfer film adopts the gravure printing method to obtain pictures and texts. When the pictures and texts are transferred to the surface of metal products, it shows the characteristics of high accuracy, strong three-dimensional sense and rich layers, which can achieve the picture quality of the product. Therefore, the heat deformation like picture quality of the product is caused. Moreover, the picture and text layer is not baked at high temperature, which not only saves energy consumption, but also has bright colors, so as to greatly improve the grade of metal products and increase added value. 1. Long glass fiber reinforced technology

3 The process of transfer printing is simple, fast and pollution-free. The operation process of transferring the graphic decorative layer on the transfer film to the surface of metal products by using the heat transfer machine is simple, fast, easy to master, and completed at one time without pollution. Pre job training for operators does not take much time

3. rated load: 1n 5N 10N 20n 50N 100N 200N 500N 1000N 2000N (multiple pieces can be equipped) 4 The surface decoration of metal products can be easily obtained, which not only has good reproducibility of pictures and texts, but also can be industrialized on a large scale, greatly reducing the manufacturing cost

source: China Packaging News