Effect of smoothness of paper print quality of the so-called smoothness of the paper refers to the surface roughness of the paper.张平清 of paper is a very important paper performance, smoothness and print smoothness of the paper is somewhat different, as the discussion of its impact on print quality, here refers only to print smoothness of the paper. Smoothness is lower newsprint various types of printing paper, which is the main constituent in the long fiber, the use of short fiber filled and appropriate calendering process, the lower its surface smoothness. Currently newspaper offset printing process has been in the production of universal application, is offset by the production of oil and water-immiscible principle, the printing pressure is smaller than the stereotype, in order to obtain good graphic quality, we must ensure that the paper had good surface smoothness. Using surface smoother newspaper paper production, due to better contact for the transfer of ink imprint obtain higher network quality, so clear and full graphics reproduced on paper. With the expansion of production scale and color development in recent years, the newspaper reported, the surface smoothness of the paper's requirements are also rising network is an essential element of a printed copy of the tone at 50% dot 100LPI under its diameter of only about 0.2mm. If the surface smoothness of the paper is poor, so prone to incomplete network deformation phenomena and cause the loss of small outlets, influence levels of image reproduction and graphic quality, especially have a serious impact on the reproduction of fine detail. To make the picture complete reproduction of coordination level, we must ensure that the network on the paper to get clear and accurate form. We have such an experience, the better the surface thirst of the paper, the higher the quality dot reproduction Dongguan tag color card printing, clear and neat ideas. From the microscopic point of view, rough paper due to insufficient pressure recess leaving dots of ink can not be sufficiently transferred here, a certain degree of network deformation even incomplete, the quality of the newspaper will be a noticeable impact; smoothness of the paper high, medium and small dot printing process is not easy to lose, can effectively ensure the level of rich picture of text, color reproduction is good does not mean the boot ink printing, printing graphic area incompatible ink or ink uneven Dongguan packaging color card printing, as shown in FIG. The main factors leading to the printing ink is not on the following aspects. (1) plate or syrup itself quality problems; overdevelopment, serious damage plate coating; protection of plastic coated too thick, takes a long time on the water rollers may need cleaning Wiping Solution. (2) Print Great Water; ink viscosity is too large, resulting in poor deinking or the ink; paper out of powder, brushed serious; fountain solutions and printing does not match the ratio of water in the tank or inappropriate. (3) printing coating wear or corrosion has occurred, not a good inking Dongguan packaging color card printing, you need to replace the new version. Off edition occurred mainly in the rotary press, because production speed rotary presses require printing package size is very precise drum direction, plate lines (Graining direction) to be perpendicular to the cylinder axis. The sheetfed press production speed is slow due to the color card printing, the direction of the plate lines no requirement. Other reasons may cause printing off version are: Edition have problems bending version is not square, plate size is wrong, the lining is too short and so on. Dongguan clothing color card printing _ beyond printing (certified) _ color cards printed by the Dongguan City, often beyond packaging products factory provided. Dongguan Chang-ping beyond packaging products plant (www.dgcyp.com) Dongguan, Guangdong, printing paper leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In all walks of life beyond the printing leadership with the staff warmly welcomed the inquiry negotiations to create a better future beyond printing.