Digital proofing and packaging printing

Packaging printing is the fastest developing packaging printing field in recent years in China. It involves almost all printing processes, including offset printing, gravure printing, screen printing and flexographic printing. For a long time, packaging printing proofing mainly meets the visual effect, and it is difficult to achieve the reproduction of printing effect or the reducibility of original. Some process proofing, such as gravure proofing, simply cancel proofing because of its long cycle and high cost; some adopt indirect proofing, such as traditional proofing, the same period is long, and the process correlation is poor. Therefore, the packaging plate proofing is always around the packaging printing quality management, affecting the quality of packaging products to improve one of the problems. With the quality requirements of packaging printing products becoming more and more exquisite, the requirements for proofing are also higher and higher, especially the speed of proofing and the reproducibility of printing effect. Today, editor of China paper network is very important to introduce the related content.

At present, the digital proofing technology has reached a mature and rapidly popularized stage after nearly 5 years of development. It should be said that packaging printing is the most significant area to benefit from digital proofing technology. Whether it is the quality of proofing, or the speed, cost and format of proofing, it has been recognized and affirmed in all aspects concerned by the insiders.

Compared with traditional offset proofing and gravure proofing technology, digital proofing has the advantages of fast, stable, less investment, less land occupation and no special requirements for the environment; farewell is that digital proofing does not need to be equipped with special personnel and long-term training and practice. Any front-end design or production personnel associated with the network can output the required electronic documents, get satisfactory samples, or provide them for inspection before inspection The quality of the process (design and production), or for reference printing for post printing process, or for user to sign samples.

Digital proofing has become a necessary process and technology for those areas without traditional color separation, such as CTP system with offset printing and flexographic printing, and electronic engraving gravure printing system without software package (color separation). In a few minutes, one can get a sample of what you see.

At present, under the control of color management software, various digital proofing systems can quickly and rapidly print out color samples satisfying the suitability of various printing processes, different paper (or substrate) and ink effect. The format can reach more than 1.5m, the output speed of each square meter is only about 5 minutes, and the image resolution can reach more than 600dpi. For example, HP's Designjet 5000 large format inkjet printer, which matches the color management software harriquin rip of Jinhao, can get a very ideal digital proofing system without the price of one eighth of the traditional proofing machine, and the cost of proofing is significantly lower than that of traditional proofing technology. This is unimaginable in the past year.

In short, the new digital proofing technology provides the most ideal proofing method for packaging printing plate making. It breaks the boundary of printing materials and printing suitability. It can not only print out the sample of frequency modulation dot or continuous tone, but also can print out the sample of amplitude modulation dot completely identical to the printing effect (such as the number of hanging lines, dot shape, mesh angle, etc.). Digital proofing technology will be promoted rapidly in the field of packaging printing, which will make due contribution to the improvement of packaging printing quality and to meet the needs of faster and better society.

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