How many problems need to be improved in the development of water-based inks:
With the rapid development of printing technology, the quality of water-based ink becomes more and more important. With the development of society and the improvement of people's consumption level, the printing of corrugated paper must be gradually developed in the direction of high-end, high quality, color, and strong visual effects. Taking multi-color dot printing as the direction, that is, replacing transportation packaging with product packaging, replacing whiteboard cattle cards with boxboard cattle cards, to achieve the characteristics of bright colors and beautiful gloss. In order to meet the requirements of medium and high-end carton printing plates, flexible plates should be used instead of rubber plates, and high-quality water-based inks must also be used to achieve the requirements of bright luster, fast drying, and high-speed production.
In order to eliminate the VOCS released by the solvent-based system, that is, to meet the requirements of EPA (the U.S .: Environmental-mental Protection Agenty) to reduce or eliminate VOCS, printers began to seek new technologies ¨C in ink formulation designers, a possibility It is the development of water-based systems that can reduce VOCS. The EPA ’s long-standing requirements for VOCS will eventually promote the application of ink. At this stage, the pressure from each force indicates that environmental issues will receive further attention. In order to achieve higher environmental management goals, printers are always looking for new methods of solvent ink printing operations to meet government regulations. The current focus of the printing industry is to strengthen the treatment of emissions from solvent ink printing. The usual practice is to use an incinerator to absorb and incinerate VOCS. Other and more creative is the application of microbial or bacterial treatment systems that use VOCS as food. All of these methods rely on efficient absorption and delivery of VOCS to systems that can be neutralized, either incinerated or absorbed by microorganisms.
The performances required by the former ink users are: the ink system with stable PH value, the ink manufacturing industry must develop the ink with stable PH value during the printing process, there is no need to detect and adjust the PH value during printing; resolubility is another important Field of research. When the amine volatilizes, the resin tends to solidify, even in the printing plate ... cure. Recently, ink manufacturers have improved the performance of the resin to make it easier to dissolve, which means that the printing system can be operated for a longer period of time, that is, the production capacity is increased; the application of ink and ink requires continuous improvement of the application performance of the polyethylene-ene substrate ; Alkali resistance of ink-printed packaging and application in frozen food packaging. The ink and ink manufacturing industry is expected to improve the surface resistance of ink and ink products to make more products water-based, especially in terms of oil resistance, grease resistance, and better heat resistance and freezing resistance.
Water-based acrylic resin is one of the important raw materials for manufacturing water-based ink. In order to meet the various requirements of the printing process for ink, water-based acrylic resin has developed to a higher level. Generally, ammonia is used to dissolve acrylic resin and other water-soluble resins with water. Ammonia has a large odor. In order to reduce the smell of ammonia, there are now ammonia-free / amine-based inks that do not use ammonia or amines. This kind of ink basically has no special smell, and is a unique system composed of sulfonated polyester resin and water-soluble acrylic resin. To make more environmentally friendly inks, polymerized acrylic resins can be used instead of commonly used low molecular polymers. Because the low-molecular polymer will produce a certain degree of molecular migration, after the ink is printed on the substrate, part of the resin will enter the substrate and packaging from the ink film. The use of 50% polymerized acrylic resin not only can achieve the same plasticizing effect, but also will not destroy the performance of the ink, and no molecular migration will occur after printing.
The new water-based ink uses alkyd and acrylic mixing technology. This mixed resin is made of a kind of water-dispersed Changshan-based alkyd resin in acrylic acid solution, which makes the ink have good drying and adhesion, low VOC, good acid resistance and alkali resistance It can be used to make composite paper gravure and flexo inks, varnishes and primers.
75 Inch Conference Interactive Whiteboard
As a 75 inch conference all-in-one machine, 75 inch Conference Interactive Whiteboard, microphones and conference software. The small size contains great momentum, providing high-quality pictures and sound effects for team video conferences.
In terms of camera hardware configuration, the 75 inch electronic Interactive Digital Board uses a 12 million pixel camera and supports a wide viewing angle of 120 degree. It can be used in small and medium-sized office spaces and can incorporate more team members into the video conference scene. 4K high-definition resolution can provide high-quality video images, adding points to the corporate image.
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