Turn down the ink viscosity, the color becomes lighter, on the contrary, the color becomes darker. However, do not blindly reduce the viscosity to change the color, otherwise it will cause other problems, such as water lines, dull color, etc. In color matching, we should master the variation bias of viscosity of different colors in order to make better use of viscosity. For example, when the primary color yellow has high viscosity, it tends to be red, while when the viscosity is small, it will show green; The green viscosity is larger than the blue phase, and the yellow phase appears when the viscosity is small.

Environmental Harm of Printing ink and Development of Environmental Protection Ink        With the increasing voice of environmental protection, as the main part of green printing, the requirements for environmental protection of ink are also increasing. It can be said that environmental protection ink is the first consideration for the development of ink in the future.  One. Harm of ink to environment:Environmental Harm of Printing ink and Development of Environmental Protection Ink          Ink is the largest pollution source in the printing industry, and the annual output of ink in the world has reached 3 million tons. Global Organic volatiles caused by ink every year (VOC) pollution emissions have reached hundreds of thousands of tons.        These organic volatiles can form a more serious greenhouse effect than carbon dioxide, and will form oxides and photochemical smog under the sunlight, which will seriously pollute the atmospheric environment and affect […]

The connecting material is composed of dry oil, improved resin, a little crimson oil or evaporated solvent. The color material is specially selected and will not change color after drying. Features heat resistance, no discoloration after drying. After printing, the iron sheet passes through the high hot blast furnace, and the general temperature is between 230 ° C and 350 ° C. the temperature adjustment depends on the quality of work and mechanical application, and the baking time is between 5-20 minutes. If the baking time is short, the temperature will increase. General pigments can not withstand such high temperature. Iron plate printing needs high temperature, so the color used for printing is limited.