The road of green upgrading of the hottest printin

2022-08-04
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The green upgrading road of the printing industry towards a new future of health and environmental protection

Preface: in the development history of human civilization, the invention of printing has opened an epoch-making chapter of cultural communication. Since Bisheng invented printing more than a thousand years ago, to today's digital printing, the rapid development of science and technology has brought earth shaking changes to the printing industry. In the future, China's printing industry will also develop towards energy conservation and environmental protection, and spare no effort to protect human homes while spreading human culture

for hundreds of years, people have always been impressed by the traditional printing industry with dark small workshops, dirty workshops and unkempt workers. In addition, the printing process uses raw materials containing harmful substances. The printing industry has always been regarded as a polluting and harmful industry

however, in the past 20 years, driven by high and new technology, printing technology has developed by leaps and bounds. From the recent seminar on the future development of the printing industry hosted by the China Printing Technology Association, it is learned that the printing industry has actively responded to the requirements of the era of environmental protection and green industry while improving raw materials and production processes as a whole. The modern printing industry has entered a new era of high technology, energy conservation and environmental protection

green raw materials

when talking about traditional small printing workshops, people will first think of the ubiquitous ink in the workshop, the ink on the machine, the ink on the printer, and the ink smell in the air. All kinds of ink and waste liquid not only pollute the environment, but also seriously affect the health of printing employees. In recent years, such small printing workshops have been continuously replaced by large-scale printing factories, and the printing industry has made rapid improvements in raw materials. Modern printing raw materials, from the waste liquid before printing to the printing ink, to the treatment of organic volatile products in the life cycle of post printing processing, can be easily recycled, environmentally friendly and pollution-free

plate making waste liquid

the plate making waste liquid produced in the pre printing process is generally considered to be the most polluting liquid in printing manufacturing. Because it contains a large number of heavy metals, it will waste metal resources and cause harm to human health. Through the technical improvement in recent years, the wide application of silver free film and computer direct plate making technology without washing and treatment has reduced the discharge of waste liquid by 96%~99%. At the same time, a small amount of liquid produced does not contain toxic substances. The results show that it is environmentally friendly and pollution-free

printing ink

in the printing process, the volatiles of traditional ink are harmful to human body and affect the health of printing workers. In recent years, many ink manufacturers and printing enterprises at home and abroad have invested a lot of energy to develop various types. 1 Power supply: ac220v400w environmental friendly inks, such as plant inks, water-based inks, biological inks, etc., use recyclable plants, food crops and other renewable materials as production raw materials, remove harmful substances in traditional inks, and are widely used in various printing methods

lamination

lamination refers to the bonding of a layer of plastic film with paper printed matter by heating and pressurizing after printing to form a combination of paper and plastic. It is one of the common post printing processing technologies for paper printed matter at present. As a thin and transparent plastic film is added to the surface of the coated printed matter, the surface is smoother and brighter, and plays a role in waterproof and dirt resistant protection

in order to ensure environmental protection, easy recovery and no pollution, in recent years, the water-based coating process and pre coating process have adopted the German company to put forward new constituent materials: polyurethane composite calcium silicon phosphate ceramic filler has replaced the traditional coating, solving the problem of organic matter emission; At the same time, in the hot stamping process, the cold stamping printing plate has the advantages of fast speed, short production cycle, energy saving, elimination of chemical corrosion process and reduction of environmental pollution

green printing equipment

Germany, Japan and the United States are developed regions in the printing equipment manufacturing industry. Heidelberg, Roland, Mitsubishi and other first-class printing equipment with a high market share in China come from these developed regions. As we all know, many developed countries have realized the importance of environmental protection and energy conservation many years ago. Energy consumption and environmental pollution must be taken into account in the manufacturing of printing equipment, and energy-saving and environmental protection design schemes must be adopted as much as possible. The high automation of various new printing machines greatly reduces the start-up preparation time and saves a lot of machine calibration materials. At the same time, the large format printing equipment also has the effect of energy saving. The 64 page printing machine is used to replace the 16 page printing machine. The production power loss can be reduced by about 1/3, and the loss of compressed air and the air consumption of each printing sheet can also be reduced. The commercial rotary machine can save more than 90% energy by recycling the heat of the drying device or cooling system. In addition, the digital printing machine, anhydrous UV printing machine, computer direct plate making printing machine CTP and other equipment almost all avoid the generation of pollutants in the production process

energy saving and environment-friendly printing equipment, extensive promotion of paper made from renewable forests, recycling of waste paper, combined with green printing production lines, constitute a high-tech green printing industry chain

green printing and economy

the printing industry in Germany, the United States, Japan and Hong Kong, China, the world's four major printing centers, is booming, especially in the most economically developed cities and regions, where printing enterprises are concentrated, helping social and economic development. Nowadays, the printing industry led by high and new technology plays an indispensable role in the stage of urban economic growth with the characteristics of low pollution and environmental protection production. The characteristics of sustainable development make it an urban industry surviving in the metropolis. At present, the three major printing centers in China are the Pearl River Delta, the Yangtze River Delta and the Bohai rim, all of which are expanding around the most economically developed cities in China. The phenomenon that the printing industry is synchronized with the regional economic development is becoming more and more obvious

the new era of high-tech green printing brings people not only a healthy living environment, but also the convenience and colorful life brought by printing. Driven by high and new technology, the economy is booming, the application of green printing will be more in-depth and extensive, and a new color world of health and environmental protection is at hand

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