Digital printing technology is a general term for inkjet printing technology, which is more widely used in the textile industry than traditional printing and dyeing technology. With the increasingly diversified development trend of customers, the fabric of grey fabrics or garment printing has developed from large-scale production to small-volume, multi-variety and individualization. The digital printing technology not only has high-quality printing effect, but also meets the needs of customers for small batches and personalized printing. The flexible printing and dyeing enterprises can continue to develop in the fierce market competition.
As an emerging printing method, digital printing technology has satisfied the market’s increasingly diverse mid-to-high end demand and increased the diversity of the textile printing and dyeing industry by virtue of its high efficiency, low proofing cost, good printing effect and less pollution.
Today, environmental protection policies are becoming more and more stringent, and the traditional printing and dyeing industry is suffering. According to the statistics of relevant departments, the daily discharge of printing and dyeing wastewater in China is 3 million to 4 million cubic meters, accounting for 35% of the total discharge of industrial waste water in the country. The traditional printing and dyeing industry has become the key controlled object of national energy conservation and emission reduction, and its environmental pollution has already restricted The industry is sustainable. In contrast, about 30% of the dyes in traditional printing can’t be combined with fiber, and a lot of sewage is produced after washing. The digital printing technology is more energy-saving. The dye consumption is only 40% of the traditional process, only 5% of the floating color, the amount of sewage is only For the traditional process of 1 / 15 ~ 1 / 25, the comprehensive energy consumption is only 1/3 ~ 1/4 of the traditional. It can be seen that the economic and social benefits brought by digital printing will have a major impact on China’s textile printing and dyeing industry.
However, digital printing does not completely replace traditional printing and dyeing. Digital printing has also been developed in China for 20 years. Although the country has always reiterated the elimination of backward production capacity, it is difficult to replace it with digital printing. There are two main reasons. First, the cost advantage of small batch production greatly exceeds that of traditional printing. However, because the ink price is relatively expensive compared to traditional printing, the mass production is higher than the traditional production. Second, the traditional printing It is a spot color printing, that is, the color of each set of color paste is accurate, and the color of digital printing is a mixture of CMYK four-color ink, the difference of ink, the difference between printing nozzles, and the small changes in the environment during printing. Will affect the accuracy of the mixed colors.
In textile printing, although digital printing technology still has many unachievable effects compared with traditional printing and dyeing digital technology, it is undeniable that digital printing technology is changing the production mode of printing products with its unique technical advantages. More and more used in soft sign advertising. The advantages of digital printing technology are shown in the following points:
- Bright colors, clear patterns and high printing accuracy
- Short period, fast response, no plate making, flexible batch, no pattern limitation, and the image can be modified arbitrarily, regardless of proofing, small batch, large batch production, fast delivery.
- Environmental protection, no pollution, low energy consumption, low pollution, low noise, no waste water generated during the whole printing process, low noise, is a true pollution-free production technology.
- Suitable for personalization, digital inkjet printing covers a small area, can be printed in the office and home, can achieve personalized digital printing through the Internet.
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