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Common flatten flatten or round stickers trademark style presses . Such presses are mostly converted from letterpress printing made its ink supply mechanism , printing presses stamping agency unit-type flexographic complicated than , the operation is very troublesome. To ensure high quality , essential operator skill level . Printing process now common problems and solutions for a superficial analysis and discussion , for your reference. A pressure problem Printing a great impact on the quality of printing pressure . Maintain a uniform and constant printing pressure within the effective print area , print ink evenly not only make a small difference, it can blot dimensional stability. Platen type printing presses to get the most pressure . However, due to manufacturing issues plate flatness accuracy of its existence , and the adhesive base material can not be completely uniform thickness , resulting in uneven pressure , affecting the printing quality . Measures to address the uneven pressure is to do a pad , where the pressure is small , where the lower bench pads put together ; one is appropriate to reduce the hardness of flexo . But reducing the hardness of flexible version is limited, if the flexible hardness is too low , graphic geometry outward expansion will enable small fonts easily blurred. When printing a large area , the problem of printing pressure is not easy to solve, this method can be used to borrow stamping , i.e. the table 175 lines textured mat proofing layer , a silicon rubber hardness of 90 ° version this can be resolved and the lack of local exhaust pressure problems.
