In offset printing press from carrying, transfer, transfer the role of the transfer roller, inking roller and forme roller to roller, rubber rollers are often associated with these different materials string roller, heavy roller cooperating together to play a role. Reducing the use of blanket washing the mixture with gasoline formulated, and take the form of different cleaning cleaning, cleaning materials this approach to saving, stable performance rubber roller, printing quality and reducing print failures occur has a very important role. In offset printing press from carrying, transfer, transfer the role of the transfer roller, inking roller and forme roller to roller, rubber rollers are often associated with these different materials string roller, heavy roller cooperating together to play a role. In general, the higher the sense grease performance rubber roller, ink adhesion thereon, the transfer performance is better. After prolonged usage, cot tend to be aged because the surface membrane lipid degradation makes sense, but not conducive to the normal transfer of ink, especially easy to emulsify the ordinary type of ink and a few easy-absorbent, easy to change the special type of ink . In this case, not only likely to cause serious ink emulsification, but also more prone to the phenomenon of accumulated ink rubber roller, resulting in printing dot gain, word guilty. To avoid these undesirable phenomena, the work process we used blanket washing reducing agent, in order to restore good sense Cots lipid. Since the blanket washing reducing volatile faster, rubbed so often appear uneven, cot and cot expansion over the recovery of different phenomena, which will affect its stable performance. For this, we use the following method. If the roller surface aging lighter, then the first roller remove and place on a roller stand, take a plastic container or glass containers, inward into a certain amount of gasoline, then the blanket washing reducing agent 1: ratio of 20 injection gasoline and stir the mixture (the mixture should be formulated in an amount of how much the degree of aging for the cot and its specific needs may be). Then wash utensils or gauze leaching mixture and quickly roller surface scrub again, and to be fully wet the entire surface, to be a mixture of ease Cots aging film again after thorough cleaning. In order to ensure a good cleaning effect and restore performance, clean the rubber roller from one end of the process should scrub to the other end, and we must continue evenly rotating roller, so that the rubber roller surface have been restored. If the cleaning again, restore the effect is not good, it can also be a second time, third time cleaning, until it reaches a good cleaning effect. If the roller surface aging serious, it can be blanket washing reducing agent with gasoline formulated 1:10 (which may be suitably formulated to increase or decrease the ratio of the actual situation, in order to achieve fast cleaning purposes). The specific cleaning method is basically the same as the previous case. But it is worth noting: After cleaning preparation should be scaled up quickly to avoid volatile mixture caused due to the cleaning performance. If the roller surface aging or less left on the surface strong adhesion ink layer, you can or the ink on the ink roller after a thorough cleaning after changing ink, then blanket washing reducing agent with gasoline to 1:20 1:15 proportion or preparation, and poured on the printing press inking system of a rotary press to make the mixture should also be evenly distributed on each roller, the printing press to be rotated from 1 to 2 minutes, stop checking glue cleaning effect and recovery of roll. If the roller surface being lipophilic still low or there is the case of the ink layer, it can then poured some of the mixture on the rubber roller, continue to use the method described above for cleaning, until after the requirements before. Finally, in the case of the roller surface wetting the transfer roller rubbed some of the white ink and dispersed uniformly. This allows cleansed ink pigment, aging was into the roller surface of the ink, the ink is finally fully transferred down or washed away. This use of a mixture of cleaning rubber roller directly on the press and restore their sense of lipophilic method is very simple, the more removed the rubber roller cleaning method can save a lot of time. This method is particularly suitable for dark-colored ink ink change process, can effectively eliminate dark ink on a rubber roller attachment and residues, thereby avoiding the changes brought about due to mixing of ink hue. In the work process, we also use a mixture of regular or irregular rubber roller cleaning, ink roller to prevent aging is very useful. Good results show that: the use of a mixture of reducing blanket washing with gasoline formulated, and take the form of different cleaning method of cleaning Cots feasible. This method of saving cleaning materials, stable performance rubber roller, printing quality and reducing print failures occur has a very important role