With the tightening of environmental protection policies, the collection of VOCs sewage charges is becoming more and more strict, and the application of ink in various printing and packaging fields has also accelerated the speed of promotion. The application of ink and wash in the field of labels has not started in recent years, but it has not been widely used. In addition to cost issues, the lack of binding environmental protection policies, printing quality and process implementation issues are also the core issues that restrict the development of ink and wash in the field of labels. 01 Ink color rendering problem The first requirement of more label printing manufacturers for ink is that the color of the printed matter is saturated, bright and bright, but the dryness and adhesion are ranked in the last two. Due to the presence of water in ink, it is very easy to cause the gloss of the ink film after printing to be very low, especially in paper printing, the color of the printed product is not bright enough. In response to this problem, in addition to the use of high-quality, brightly-colored pigments, the choice of film-forming resin is a very important factor, in addition, it needs the cooperation of some additives. 02 Ink drying problem Regardless of whether flexo or gravure printing is used, drying speed has always been an important factor affecting the feasibility of ink. When printing with absorbent materials, due to the need for hot air channels to speed up the drying of ink, but at the same time there is the problem of ink penetration, if the two cannot be well balanced, it is easy to cause various deformations of the printing material and reduce production Efficiency, causing losses. The use of film-type non-absorbent materials, impervious to drying, and completely drying by heating will usually reduce the printing speed and affect the production efficiency. If the drying temperature is increased to speed up the drying speed, it will cause non-absorption The expansion and contraction of sexual materials affects the printing quality. In fact, the core factor affecting ink drying is its film-forming resin. From the early maleic anhydride resin system to the current polyurethane-acrylate composite emulsion system, water ink has undergone a rapid development process, and its performance has been improved in all aspects. Until now, "pure water" ink can basically be achieved the concept of. Control the initial drying and thorough drying of ink, which can ensure its drying speed and good transferability 03 Resistance of water-based inks As a special product with a labeling effect, the label has certain requirements for its water resistance, friction resistance, scratch resistance, and even high and low temperature resistance in the application process. Many ink and ink products perform poorly in terms of water resistance and low temperature resistance, which is also an important reason restricting their wide application in the field of labels. In addition, in addition to printing quality issues, cost is also an important factor restricting the development of ink in the field of labels. The low-end ink is not expensive, but the same quality can not meet the requirements; while the high-end ink quality is guaranteed, but the printing factory feels that the cost is too high. With the success of the research and development of new resin systems, pure water-based inks have achieved the goals of good quality and reduced costs. Under the increasing pressure of environmental protection, compared with the VOCs sewage levy, most printing plants Should still be acceptable Under the constraints of increasingly strict environmental protection policies, accelerating the launch of new water-based inks that are environmentally friendly and cost-friendly has become a very urgent issue in the industry. It is not difficult to see that flexo ink still has a lot of room for development in the field of labels, and there are also many problems. Hair Oil,hair growth oil,tea tree oil for hair,olive oil for hair,argan oil for hair Zchoise Cosmetic Factory , https://www.zchoise.com
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