Prospects of non-absorbent offset printing inks (I)

With the accelerating pace of accession to the WTO, China's national open, the international competition in the ink industry will be more intense and conducive to the developed market economy. In the United States, environmental pollution caused by packaging printing inks has always affected the country’s ecological policy (for example, organic solvents must not exceed 25% as early as 20 years ago), and its laws and regulations have deterred China’s export of ink to the United States; The Order No. 16 (such as an annual output of less than 300 tons Sanheyin Aniline ink will be shut down and banned in 2000 and 2001, respectively) has forced us to speed up the research of pollution-free ink. Development and application.
For a long time, we neglected to integrate with the world's ink products. This too calm attitude caused us to widen the distance with the United States, Japan and some developed countries in Europe. This phenomenon should cause people to think deeply. Struggling against the WTO is undoubtedly the goal of the Chinese packaging printing and printing ink industry who are standing on the threshold of the new century. This is also the century-long hope of the great civilization of the East!
In recent years, multinationals such as Japan’s Toyo and Switzerland’s Sikhabi year have appeared in Tianjin, Shanghai and Beijing. Our ink industry has promoted economic development, and joint ventures and wholly-owned production of ink products have clearly been motivated by the desire to use finance, technology, and packaging. On the advantage, occupy the world's largest market - the Chinese market.
In the face of such a situation, my production can not help but ask myself: in improving China's ink science and technology competition level, do not take the industry restructuring (joint set up factories, mergers and acquisitions, the group to join, in the selection of nearly five thousand five homes Air Ship) on the road? Do you want to freely eliminate outdated products or companies that are insolvent and insolvent? Should we not integrate our national ink industry with the international market? Should we take the initiative to welcome us to dance with wolves and go abroad to expand our international market?
The application of compounding technology and additives has accelerated the upgrading of new ink technologies and new products. Today, with the acceleration of industrialization, environmental pollution has become common in the world. The laws and regulations formulated by various countries have restricted the marketing of traditional packaging printing inks. Therefore, the development and application of green non-polluting, solvent-free non-absorbing inks and water-based inks have become fashionable.
First, the development of non-absorption offset printing ink China's 1999 release of 138 ink results, patents, a few subjects can not be involved in non-absorbent offset printing ink (more high-tech products). Before we have a strict position, we call this a solid, dry ink. It avoids the toxicity of the traditional printing ink grease or solvent absorbed through the skin, digestive tract and respiratory tract after penetration or volatilization. Therefore, it is increasingly favored by people.
Non-absorbent printing inks are general terms for inks such as thermal, photocuring, wet, catalytic, electron-hardening, and pulsed radiation. They are new terminology for wool since the 1970s. For example, a sublimation printing ink is an ink that is heated, directly vaporized from a solid state, and solidified after cooling; a hologram is realized by embossing a rainbow hologram. Its main feature is that the images on the film are numerous and minute. , dense, intricate concave striated stripes, no need to color, but it can show a colorful main subject; jet printing ink without plate making process, low cost, printing cycle is 15 times shorter than the regular printing cycle, printing ink can be recycled and Can be recycled; copy solid toner is also a solidified ink category, but the production costs are higher than other printing inks.
1. Thermal curing offset ink (also called thermal polymerization drying ink)
When the ink is printed, it needs to be heated and baked, and the temperature is generally 100-200 degrees Celsius. By heating, the ink binder is converted from a low molecular weight polymer network structure and forms a strong ink film. After baking, the color of the ink remains unchanged, and the ink also increases the excellent mechanical properties, including adhesion. , flexibility, surface hardness and impact resistance and solvent resistance. Heat-curing offset printing inks are usually used to print various packaging containers, such as exquisite candy boxes, tea cans, canned equipment, etc., so it is commonly known as printing ink or metal offset printing ink, generally divided into white ink, color ink, ink, cover Varnish four categories.
Unlike in traditional thermoset printing ink architectures, after the 1980s, thermosetting inks have eliminated solvents for...100 degrees F-400 degrees F down to 200 degrees F-250 degrees F, that is to say each By lowering 100 degrees F, steam consumption can also be reduced by as much as 25%.