Letterpress plate | Qinghai plate | Zhengzhou Dunlop advertising (View) supplied by Dunlop Advertising Co., Ltd., Zhengzhou. Zhengzhou Dunlop Advertising Co., Ltd. (#) is a professional, "flexographic, resin version, printing, packaging design," the company. Since its inception, we adhere to the "honesty, sound management" approach, the courage to healthy competition in the market, so that the "Schindler plate" brand has a good reputation. We adhere to the "service first, customers first" principle, so Zhengzhou Dunlop advertisement has won numerous customer's trust in plate making, printing supplies, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you! Naming flexographic printing flexographic printing is named because it turned out to be highly non-uniform surface for the printing of corrugated board, cardboard need plate held in contact with the surface, and therefore should have a very good flexibility. Moreover, the board shall not printed printed on high residual ink printing, which requires non-image areas on the plate with sufficient depth to be able to achieve this requirement. PH value PH value ■ PH value of the viscosity of the ink ink ink application affects another indicator of the need to control its normal range of 8.5 to 9.5, then the best water-based ink printing performance, the most stable printing quality. Due to continuous ammonia volatilization during the printing process, the operator will from time to time to add a new ink and ink flexo platemaking various additives, so the ink PH value may change at any time. PH value using a standard meter, you can easily measure the PH value of ink. When the PH value is higher than 9.5, too alkaline plate manufacturers, to reduce the viscosity of water based ink plate, slow drying rate, poor water resistance, prone paste version; and when the PH value is lower than 8.5 that is too weak alkaline , the viscosity of water based ink rises, ink is easy to dry, to the version of the block and the anilox roll, causing the layout dirty, and create a bubble. PH value impact on water-based ink printability mainly in ink viscosity stability and dry in terms of clarity and outlets. With the increasing value of PH, ink viscosity decreases, the drying speed is slow. Application experience water-based ink in cardboard printing process often encounter some problems, analysis and solutions may refer to the following: ◆ printing pressure adjustment is critical plastic plate, which includes a pressure plate and the anilox roll and between substrates and pressure between the plate. If the ink viscosity is too high, too fast ink drying problems, the solution is to adjust the pressure, diluted ink, slow drying agent added. ◆ ink dry on the plate, printing blurred edges, it may be on the hot air blown plates, paper fibers mixed with ink resulting in static response, elimination approach is gradually diluted ink and speed, will cover the ink system, or replacement of ink, installation to static devices.