With the continuous advancement of science and technology, modern printing equipment is developing in the direction of multi-color, multi-functionality, high-speed and automation. At the same time, color printing materials continue to diversify, and printing characteristics are obviously different from traditional production processes. The formation of a new situation also puts higher requirements on the characteristics and quality of the ink.
Looking at the status quo of the printing industry, it puts forward the following requirements for the use of inks:
1. Modern printing equipment is developing toward a multi-color online printing direction. Therefore, the ink needs to have a rapid drying characteristic. That is, the ink is quickly fixed and dried after being transferred to the printing material, so as to meet the requirements for continuous high-speed and multi-color printing of the equipment.
2. Modern printing requires that the ink does not quickly dry and fix the crust on the ink fountain and the rubber roller of the printer, so as not to hinder the normal printing, so as to better ensure the printing quality and work efficiency.
3. It is required that the ink cannot react chemically with the printing plate, does not produce corrosive effects on the printing plate, and does not reduce the printing plate's resistance to printing.
4. It is required that the color of the ink should be kept the same, and that each batch of ink of the same type should have the same color, the conjunctiva is firm, and the ink does not fade after printing. After printing, it can produce light. In addition to transparent ink, each color ink should have a certain hiding power, and after overprinting, the overprinted ink should maintain the original basic color characteristics.
5. Printing ink must adapt to different types of printing methods and printing equipment, such as offset ink should have water resistance, acid resistance, gravure ink must be easily volatile.
6. The printing ink must also have good anti-sticking dirty properties, ie the ink is printed on the substrate, and the phenomenon of imprinting is not easy to occur at the instant, so as to ensure the printing efficiency and quality.
7. Modern printing requires better ink fineness, that is, the size of pigments (including fillers) in the ink and the distribution of pigment particles in the binder should be kept fine and uniform, so that printing defects such as stencil printing can be better prevented.
In addition to the above good characteristics, the modern printing process also requires the ink to have heat resistance, light resistance, acid resistance, alkali resistance and other properties. When the ink is transferred to the substrate, the ink layer must be bright and dazzling, to achieve no discoloration, no fading and impermeable And other good use characteristics. The packaging and printing products also require the ink to be printed on the substrate and should have good anti-friction properties. The above-mentioned requirements of these characteristics are an important way to improve the printing efficiency and product quality, and are worthy of further research and development by the ink development manufacturers. It is also a production problem that printers hope to solve.
Looking at the status quo of the printing industry, it puts forward the following requirements for the use of inks:
1. Modern printing equipment is developing toward a multi-color online printing direction. Therefore, the ink needs to have a rapid drying characteristic. That is, the ink is quickly fixed and dried after being transferred to the printing material, so as to meet the requirements for continuous high-speed and multi-color printing of the equipment.
2. Modern printing requires that the ink does not quickly dry and fix the crust on the ink fountain and the rubber roller of the printer, so as not to hinder the normal printing, so as to better ensure the printing quality and work efficiency.
3. It is required that the ink cannot react chemically with the printing plate, does not produce corrosive effects on the printing plate, and does not reduce the printing plate's resistance to printing.
4. It is required that the color of the ink should be kept the same, and that each batch of ink of the same type should have the same color, the conjunctiva is firm, and the ink does not fade after printing. After printing, it can produce light. In addition to transparent ink, each color ink should have a certain hiding power, and after overprinting, the overprinted ink should maintain the original basic color characteristics.
5. Printing ink must adapt to different types of printing methods and printing equipment, such as offset ink should have water resistance, acid resistance, gravure ink must be easily volatile.
6. The printing ink must also have good anti-sticking dirty properties, ie the ink is printed on the substrate, and the phenomenon of imprinting is not easy to occur at the instant, so as to ensure the printing efficiency and quality.
7. Modern printing requires better ink fineness, that is, the size of pigments (including fillers) in the ink and the distribution of pigment particles in the binder should be kept fine and uniform, so that printing defects such as stencil printing can be better prevented.
In addition to the above good characteristics, the modern printing process also requires the ink to have heat resistance, light resistance, acid resistance, alkali resistance and other properties. When the ink is transferred to the substrate, the ink layer must be bright and dazzling, to achieve no discoloration, no fading and impermeable And other good use characteristics. The packaging and printing products also require the ink to be printed on the substrate and should have good anti-friction properties. The above-mentioned requirements of these characteristics are an important way to improve the printing efficiency and product quality, and are worthy of further research and development by the ink development manufacturers. It is also a production problem that printers hope to solve.