Application of rotary ink in the printing of the h

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The application of rotary ink in newspaper printing

the development level of printing industry can be said to be a sign of the degree of development of a country or region. With the development of society, the improvement of people's living standards, the amount of information dissemination is increasing, and newspaper printing has also developed rapidly. Among them, the three new factors of newspaper printing industry - high-speed printing, color printing and commercial rotary printing have greatly affected and promoted the development of rotary offset printing ink

in recent years, large newspaper groups have been established in many parts of China, especially in the developed regions in the southeast, including, of course, some provinces and cities in the central and western regions. In order to meet the needs of newspapers with strong timeliness and large printing volume, they have purchased the most advanced printing equipment in the world, and the printing speed has reached about 150000 pieces/hour. In this way, the plastic mold and plastic machinery industry focuses on relying on the high printing speed of the basic advantages of Chongqing equipment manufacturing industry. For the inkiness of ink, such as viscosity and viscosity, researchers have developed an injectable two-component pur (polynova reg;) Fluidity, drying speed. Water resistance and so on have put forward higher requirements

now, major newspaper groups are basically color newspapers. Therefore, the rotary offset four-color ink for color newspaper printing came into being. Like sheet fed offset four-color ink, rotary offset four-color ink also has strict requirements in chromaticity

commercial rotary printing (coated paper color rotary printing) is increasingly favored. Therefore, thermosetting rotary offset printing ink suitable for color newspaper printing has also been developed in China. Different from ordinary rotary offset printing ink, thermosetting rotary offset printing ink must have the characteristics and functions of both rotary offset printing ink and sheet fed offset printing ink. Therefore, the current high-speed rotary offset printing ink is no longer the rotary offset printing ink in the previous concept, and there have been great changes in variety, performance and so on

although China's rotary offset printing inks have developed rapidly, and some products have been on a par with similar foreign products, there is a problem of uneven development, mainly in the following two aspects

1. rotary offset black ink

because newspapers are reading products in close contact with readers, their toxicity will directly affect the safety of readers and reading environment, and also pose a hazard to newspaper printing workshops. Foreign countries have eliminated the inks made with asphalt binders as early as decades ago, but in China, due to the weak awareness of environmental protection and cost reasons, many newspaper printing still use asphalt and the rotary offset printing inks produced by petroleum resin binders in gb/t 1040 (1) 992 "test methods for tensile properties of plastics", which hinders the development and promotion of high-quality products to a certain extent

after replacement, 2. rotary offset color ink

now color newspapers account for an increasing proportion in newspapers, but high-quality new rotary offset color ink is far from being popularized. Many newspaper printing plants continue to use color ink produced by asphalt and petroleum resin binders. Develop high-end printing ink

with the improvement of people's living standards, people have a deeper and deeper understanding of environmental protection and health. Therefore, our ink production, including rotary offset printing ink and all other types of inks, must solve the problem of environmental protection. For offset printing ink, the following steps can be taken

(1) ink manufacturers do not use asphalt, untreated petroleum resin and other harmful substances in ink formulas, and printing enterprises also try not to use such ink products

(2) develop and promote new rotary offset printing inks, and gradually fade the current asphalt and petroleum resin inks out of the market

(3) research and develop environmental friendly ink products such as aromatic free or low aromatic ink, low VOC ink or solvent-free ink, resource renewable soybean oil ink

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