In recent years, with the development of China's economy, the market has become increasingly demanding on packaging. For metal packaging, the screen printing process has become increasingly popular. Especially for metal packaging barrel products, screen printing has become an important way for industry products to improve the grade, and has been widely adopted in China.
Screen printing of metal packaging is a kind of special packaging printing. It is a screen printing method that uses a hard material unique to metal packaging products as a substrate. The main printing materials are tinplate (tin-plated steel sheet), chrome-plated steel sheet, Galvanized thin steel sheet, cold rolled carbon thin steel sheet, hot rolled carbon thin steel sheet, etc. There are also special packaging materials using aluminum plate, stainless steel plate and other materials.
Metal packaging screen printing is an integral part of the production process of metal packaging. It is the sign of the packaging content and contains certain advertising ingredients. Therefore, in order to arouse the consumer's desire to buy and increase the sales value of the goods, as a means of promotion, novel decoration design and exquisite printing should be carried out. In this way, the metal packaging screen printing becomes more important.
1. Performance characteristics of screen-printed metal packaging
1. Physical properties and characteristics of screen printed metal materials
Metal packaging materials generally have good heat transfer and electrical conductivity, high mechanical strength, and are ideal materials for metal packaging. Because of its good ductility, it is easy to cut, stamp, bend, and stretch. More importantly, metal packaging materials can withstand all kinds of watches and processing, and can meet the decorative functions of various packaging.
2. Technical requirements of screen printing on metal materials
â‘ Straightness: The metal sheet must not be warped
â‘¡Surface roughness: The surface of the metal sheet should be free of mechanical scratches, scratches, unevenness, rough stripes and other surface roughness.
â‘¢ Cleanliness: The printed surface of the metal packaging should be clean and free from oil, dirt, water and other unclean phenomena.
3. Printing adaptability requirements
â‘ Good processability of metal packaging materials and diversity of shape design
Metal packaging materials have good mechanical properties and processing and forming properties. Metal packaging containers can achieve novel and unique manufacturing designs and produce various shaped barrels, cans, boxes and other packaging containers to achieve the purpose of beautifying commodities and improving the competitiveness of commodities. .
â‘¡ Bright colors, rich levels, and good visual effects
If the metal packaging is tin plate, because its surface is tin plated, it has a glittering color effect, and then after the background color printing, the printed graphics are more vivid. For tin-free steel plates or other metal materials, after surface treatment and painting, special flash effects can also be reproduced after screen printing.
â‘¢Conducive to the unity of the use value and artistry of the commodity
The good performance of metal packaging materials and the good wear resistance and durability of screen printing inks not only create conditions for the realization of unique styling design and exquisite screen printing, the decoration of metal packaging surfaces not only makes the packaging more beautiful, Moreover, the value of the metal packaging itself can be greatly improved and the durability and maintainability of the product can be improved, which can better reflect the unity of the use value and the artistry of the product.
â‘£An important means to reduce costs
The use of screen printing has changed or simplified the production process of certain metal packaging products (such as steel drums, etc.), reducing production costs.
For the above reasons, the screen printing of metal packaging has developed rapidly in recent years.
Second, the design features of metal packaging screen printing
Packaging is the concentrated expression of the product's function and the product's eye-catching face. A high-quality packaging can not only reflect the scientific and technological appearance of the times, reflect the modern aesthetics, but also show the high-tech value of the product. Therefore, to improve the functional design, styling design and decoration design of the packaging, and to select the appropriate technological means are the goals pursued by the packaging industry today.
At present, the use of screen printing to make graphics for metal packaging has become an important means. This is because screen printing has a unique performance effect, and various types of inks and ever-changing colors can be freely selected. Therefore, to improve the design and process level to create novel metal packaging screen printing. The specific practices are as follows:
(1) Styling ratio: the graphic proportion of metal packaging products is closely related to the structure, overall shape and layout of the content products. With the development of the times and changes in aesthetics, the proportion of packaging shapes is also constantly increasing. Variety.
(2) Layout design: The design of each function of the metal packaging surface should be reasonable to provide consumers with the greatest convenience. The pattern design has a profound meaning, which represents both the nature of the product and the production unit. The pattern design should pay attention to the following factors: â‘ It should have long-term usability and should not be changed frequently; â‘¡ It is concise and eye-catching and can leave a deep impression; â‘¢ It has a unique and novel style; â‘£ It reflects the characteristics and nature of the product .
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