The Field Of Ink Jet Printing Colorful World
To know how to ink better for a particular substrate
, must first figure out the composition of ink. Ink is usually colorant, carrier, and a mixture of water-soluble resin, according to the different colorants, inks and pigments can be divided into dye ink ink.
The field of ink jet printing colorful world ( HC screen Special Indian network With map)
The dye particles from most plants in nature, in color Print Usually can be beautiful bright effect. While dye ink to copy the high-quality images, but this resistance is not a very good resistance to ink, not printing a large area on the ground, long home prone to sedimentation, stratification. With different dye ink, pigment ink from the other types of material composition, pigment particles larger by about 10 000 molecular structure, easy to produce light diffusion. Therefore, the sharpness and color printing products as dye inks, prints out color effect should be less, but fading slowly, outdoor light resistance of printed products is much better than the dye inks.
Digital printing industry, scholars believe that water-based pigment ink won 70% of domestic market share, which is the number Advertisement Printing market is gradually strong reason. Although in recent years Solvent Inks for its excellent outdoor resistance by all the popular resistance, water-based ink is still divided up some of the market, I believe that in the near future, digital printing ink market will have changed dramatically.
In adverse weather conditions, such as direct sun, rain or windy weather, water-based ink fade easily, but solvent-based ink jet printing products can greatly enhance the resistance of outdoor resistance. Inkjet print head technology has been from the original thermal bubble inkjet head to piezoelectric inkjet head, so in addition to water-based ink, other kinds of ink can also be printed using inkjet technology. Thermal bubble inkjet head includes a heating element to produce heat, the heat generated can depend on solvent inks or oil-based ink chemical reaction. Only oil-based ink and coating the substrate with the reaction, such as the PP composite materials, PVC vinyl, etc., while the solvent-based inks, you can respond with no coating material, ie, solvent-based inks have much broader adaptation, greatly increased the resistance of resistance to outdoor ink products, both to meet the needs of the consumers, but also to achieve the objectives of the printer manufacturer. Solvent-based ink has a disadvantage is that there is environmental pollution, and some volatile solvents harmful.
Digital printing market is experiencing a UV revolution UV inks For inkjet printers offer many obvious advantages, the most obvious advantage is instant dry, can be completely dry and generally just 1/10s fixing the substrate surface. UV ink curing process is a photochemical reaction process, that is, the role of energy in the ultraviolet, the pre-polymer in a very short time, curing membrane, the surface of UV curing inks can not only to better penetration depth of ultraviolet curing liquid ink, the ink film to stimulate further solidified deep. Traditional oil-based ink is solidified in the oxidation, while solvent or water-based ink is mainly by water or solvent evaporation and curing, some inks can penetrate the paper. Compared with conventional inks, UV curable polymer ink drying should be more thorough, no solvent evaporation or pollutants, the ink film 100% curable. Therefore, the graphics can be quickly fixed with the substrate, and rarely penetrate to the grassroots level, the non-impact printing. In recent years, UV curing printing ink raw materials, the type of rapid development, operability and compatibility has been enhanced, light-sensitive objects commonly used substrates in addition to previously, there are a number of substances in nature stationery printing, such as wood and so on.
Ideal UV curable ink should be waterproof, anti-fade, no volatile organic compounds (VOCs) and can be used for a variety of substrates such as uncoated material, reel packing and hard objects (glass, etc.). This will further expand the field of inkjet printing in the image share.
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The Field Of Ink Jet Printing Colorful World
By: nanafg
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