Over the past 20 years, the development of mobile phones has mainly gone through five major stages:
1. The price is high and it only has basic functions.
2. Reduced volume, relatively lower price, more people can afford it.
3. Pay attention to style and have more diverse designs.
4. Multifunctional.
5. Shorter cycle time, requiring more styles and less quantity.
The application of transfer printing technology in the mobile phone industry has also gone through four stages simultaneously: from the initial single and dual color printing of mobile phone displays and lenses, to the trend towards functional printing, to the emphasis on decorative printing, and finally to the emergence of special printing network trademarks in recent years.
1, Mobile phone display screen, lens single and dual color printing
In the early stages of mobile phone development in the 1980s, Ericsson and Motorala monopolized the market and produced locally in Europe and America. At that time, transfer printing was only used for mobile phone keyboards, displays, or single or two-color trademarks.
With the development of the market and the increase in production, mobile phones are increasingly requiring transfer printing "automation" systems, and even requiring the use of computer optical quality CCD inspection systems, equipped with mass production features. At that time, 16 bit turntables were very popular.
In the late 1990s, the mobile phone 0EM base was transferred to Japan, South Korea, Malaysia, Taiwan, China, China, and the mainland in Asia. Because of the low labor costs, the transfer printing system mostly requires semi-automatic.
Because labor costs are relatively low and the quality of labor is not yet fully mature, special measures are needed to reduce the work gap caused by labor quality. For example, an automatic cleaning device can reduce the number of irregular manual shutdowns to clean the glue head, and correct the misconception of using oil and water to clean the glue head, as using oil and water to clean the glue head will greatly shorten its lifespan.
Vacuum fixtures can also greatly reduce the placement errors caused by manual placement of printed products. The far-infrared drying device greatly shortens the time for natural air drying of printed patterns and reduces the probability of ink printing patterns that are prone to smudging.
Nokia once used the pioneering "UV4 color method" for transfer printing when printing the front/back cases of the popular 8210 phone model in 2000, due to issues with post press drying treatment. This method created glossy 3D stereoscopic photo quality patterns.
The market demand for YMCK4 color printing quality has been clearly demonstrated; The appearance, color, and pattern design of mobile phones are increasingly being valued and have become a part of fashion accessories. The requirement for rapid drying up of UV shows that the speed at which mobile phone models exit the market is getting faster and faster. There are many styles and new designs, but they will soon be replaced by new styles. Therefore, the production volume of each mobile phone is much lower than before.
The traditional transfer printing system can no longer meet these production requirements. Instead, a fast zero adjustment system can be used to complete the printing process from A to B within 3 minutes in order to meet the industry's requirements.
To achieve this goal, the key to a fast zero tone system is to have a deep understanding of the characteristics of each project, such as product material curvature, pattern color quantity, printing special effects, coordination with mobile phone designers, production speed, process output, color quantity, production environment, etc.
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