Screen printing ink market trends

UV inks and water-based screen printing inks will be very large in the market, and now the inks used in China are mostly solvent-based inks. Solvent-based inks are volatile drying inks that require slow drying times and require 8 hours of natural drying. In the drying process, 60% of the solvent must be evaporated. This serious pollution, under the slogan of “returning to natural environmental protection first”, is not only restricted by the strict regulations of the government departments, but also opposed by the neighbors. Screen printing factory does not want to use. Therefore, it is inevitable that UV inks and water-based inks will occupy the screen printing market in the future.
First, screen printing UV ink market trends At present, screen printing inks from the output and varieties, the volatile drying ink dominates, but the UV ink production increased year by year, and the increase in large, its output over volatile dry ink, Just a matter of time. As the types of homopolymers, prepolymers, and polymerization initiators in UV ink raw materials have increased, the application range of UV inks has become more extensive, and it can be applied to various printing materials for screen printing, and its market share is bound to increase. .
1. UV ink is suitable for various printing materials paper, coated paper, wood products, synthetic paper, polyvinyl chloride (PVC) 1 propylene (PMMA), acrylonitrile-butylene-styrene terpolymer, acrylonitrile-styrene copolymer , Styrene (PS), ABS, Polycarbonate (PC), Polyester (PET), Polyurethane, Processed Polyethylene, Processed Polypropylene, Plastic Coating Side, Polyethylene ( PE), painted surfaces of wood products, coated metal plates, glass ceramics, thermosetting resins.
2. UV screen printing ink features strong UV screen printing ink to adapt to the high quality of products, diversification and special processing products that require special shape.
1Physical: liquid crystal display screen, anti-corrosion negative welding; electrical insulation, electrical conductivity, electric field light, magnetic, etc.; thermal temperature foaming, temperature, pearl, fluorescence, night crystal, thermal transfer and so on.
2 Chemical, medicinal, corrosive, ethanol peeling, etc.; biochemical anti-bacterial, anti-fouling, etc.; absorption, adsorption, reaction of water resistance, oxidation corrosion.
3 Surface decoration: crystal glue, anti-metal etching, matte wrinkles, non-glare, mirror metal, etc.; three-dimensional, thick film printing, Braille, crystal pattern, wrinkles, broken graphics, coral pattern and so on.
Second, the trend of water-based ink market In the volatile drying ink, the water-based ink developed in the 1980s, due to the benefits of environmental protection and attention. Water-based inks were once spotlighted at the beginning of development, but they were not popular because of the poor water stencil property of the water-based inks, as well as the problem of wrinkling due to moisture absorption on paper when printing on paper. After entering the 1990s, the above problems were gradually solved. With the advent of new water-based inks using urethane emulsions, their variety has also increased.
From an objective point of view, because the function, use, price, equipment, and supply of (water-based inks) are superior to (UV inks), in the future, in the screen printing ink market, traditional inks will slowly disappear from aqueous inks and UV inks. Instead, water-based inks finally dominate the market. Commercialized water-based printing inks have met the principles of simplicity, practicality, and economy. The three major shortcomings that existed in the past have now been overcome. Such as:
1. Drying of Screen Printing Aqueous Inks The biggest disadvantage of aqueous inks is the slower drying than solvents. Theoretically, the evaporation energy of water is 4 to 5 times larger than that of oil. How to improve the dryness is a comprehensive problem. After years of research, the composition of water-based inks has been thoroughly improved.
1 First, reduce the water content of past water-based inks from 70% to 30%.
2 is the ultra-micro-particle water-based printing ink, so that can only be used 150-screen screen printing water-based ink, 300-mesh screen printing. This thin film printing, drying faster.
3 is to reduce the viscosity of the aqueous ink under the premise of not impeding the printing effect, so that the surface tension is reduced, and the capillary phenomenon is promoted to improve the effect of evaporation drying and penetration drying.
4 is the most important, there must be a high-performance infrared dryer. Due to infrared radiation energy, penetrating power, can directly interact with the molecules in the ink, heat inside and outside at the same time, promote instant drying, now with water-based ink for color printing, instant drying between color and color, 150 °C 5s. This drying speed is almost as fast as UV printing ink.
2. Subsequent problems with aqueous inks Past aqueous inks for absorbent articles (porous objects) such as: cloth (cotton, hemp, wool, rayon, polyester, nylon, and blended fabrics thereof), paper (paper, cardboard), wood (wooden board, Wood, plywood), leather (leather, artificial leather), etc., are then good, but it is then more difficult for substrates with a hard surface. Now because the fixing agent of water-based ink is acrylic, polyester, polyester overlap resin, its all-round function is for the non-absorbent substrate, the substrate with smooth and hard surface, and the objects that were difficult to connect in the past. Excellent adhesion. Such as water distribution cloth, synthetic paper, thick canvas, rigid PVC, PVC, stickers, PVC cloth, artificial leather, acrylic, ABS, AS, PET, PS, glass, hard aluminum foil, stainless steel and so on.
3. The problem of water-based inks that are fully water-based In the past, water-based printing inks were already water-based, but most of them were filled with 10%-15% of solvents in order to improve the softness, vividness, and bleed-out of printing inks. The current water-based printing ink can overcome the above problems and is a full-water printing ink.
The development of water-based printing ink has become a hot topic for the screen printing industry. Because the country has regulations on environmental protection, screen printing practitioners have awakened themselves and have refused to use solvent-based printing inks instead of water-based inks for their own health. Neighbors of the screen printing factory, as long as there is a bit of odor, a telephone call to the environmental protection part; for orders received from export traders such as toys, garments, furniture, curtains, etc., often indicate the use of non-toxic ink processing; consumer purchasing At the time of the shirt, they also learned to touch it by hand. Whether they use water-based printing ink or not, customers should ask whether they are printing water-based printing ink. The other reason is that the screen printing has been completely processed by computer. From design, text, graphics, and composition to four-color output, special shipments can be delivered in one hour, screen printing (four-color version) is picked up on the same day, high-performance four-color screen printing machine, and high-performance instant infrared dryer have The supply creates conditions for the use of water-based inks.
4. Water-based inks are forecast to be used in the printing of color large-format road signs and posters for European water-based UV inks. The increasing use of water-based inks and water-based UV inks is mainly due to environmental regulations and requirements to improve the operating environment. Of course, there is another reason. Four-color screening printing is very good. Therefore, in order to develop the advantages of water-based inks, the rapid expansion of the water-based ink market is inevitable.
Some foreign countries predicted that in 2002, water-based printing inks would account for more than 50% of screen printing inks. Full-function water-based ink will be born. The surface is dry for 5s, and the heat-curable 10s functional water-based ink can be optionally used. Ultrafine water-based inks can be printed with 500 mesh. Colors can be printed in 8 colors available on a computer with 6,000 colors. Water-based ink (make-up) grade, VOC content is zero, 50m2 per kilogram of water-based ink.
China has the largest population and the largest market. This way, the amount of water-based ink used in China will account for the first place in the world, so it should be developed vigorously.