Failure of the twelve printing plates with low resistance to printing force: 1. The force of the water roller on the printing plate is too great; 2. The force between the printing plate and the blanket when printing is too great; 3. The rubber blanket is not cleaned in time after the plate printing. ; 4, paper in the printing paper is too much; 5, the paper PH value is too high or too low; 6, fountain solution PH value is not appropriate; 7, the base metal composition does not meet the printing plate requirements; 8, printed paper with sand Or sand; 9, printing plate without anodic oxidation, the surface does not form a strong, dense aluminum oxide film layer; 10, rubber loaded down; 11, the plate is improperly stored by a strong light, a trace exposure or full exposure Phenomenon; 12, excessive development at the time of plate making; 13, aging of the blanket; 14, ink viscosity is too high; 15, the density of the film used in printing is not enough; 16, printing plate storage time is too long, the photosensitive resin film has undergone qualitative change; 17, after the revision of the remaining patch of paste (agent) when the water consumption is too small and no non-text to wipe, resulting in printing resin film thinning; 18, water roller sleeve is too old; 19, The effect of the printing roller on the printing plate is too much and the printing speed is fast, resulting in the printing of the bite Damage; 20, printing plate photosensitive resin film thickness varies; 21, printing plate grain is too thick; 22, in the printing plate is not inked, the water roller on the plate, the machine idling too long; 23, with Run Wet powder wipe version is too long and too much force; 24, depends on the version of water roller hanging too much ink and ink hardening on the water roller; 25, on the back of the printing plate on the back of the dirt, resulting in the upper version of India Part of the site part is raised too high; 26, the paper is easy to fall powder and the amount of liquid used when printing is too small, often caused by the heap; 27. Too much black ink accumulated on both sides of the blanket and tailing; 28, printing Abrasion of the roller sleeve of the machine is serious, and the impact force of the printing plate increases due to the impact force. 29. The hardness of the rubber pad is too high and the printing plate is easy to wear. 30. The baking sheet is excessive; 31. The quality of the printing plate resin film is too high. Poor, and the layout of the sand is too sharp; 32, rely on the version of the ink roller aging, printing, printing plates are severely damaged; 33, the blanket is too loose; 34, the use of ink aging is too serious; 35, the blanket should be cleaned Uncleaned and continuously used; 36, rubber blanket or liner is not flat; 37, ink used during printing is too small, and Fast brush speed; 38. Interprinting between rubber plate and eraser is too strong or the force between rubber and embossing is too large, which makes the blanket stretchable and easy to abrade the plate; 39. The paper is slightly wrinkled and easy to accumulate paper powder. 40, the pressure difference between the two ends of the printing plate and the rubber or the gap between the rubber and the pressure between the two ends of the pressure; 41, the printing plate liner on the dirt, some parts of the plate raised due to excessive; 42 , Dirty rubber pad, dirt, rubber parts after the installation of high parts of the raised; 43. The blanket at both ends of the tightness, one end is too tight, one end is too loose; 44, wipe the gauze is too old, wipe version When the operation of the printing plate resin film; 45, press roller axial turbulence serious; 46, plate pad is too thick or too thick rubber pad.
Treatment method: 1, with a feeler for the appropriate adjustment, adjustment can be reversed in the printing plate, so as not to damage the printing plate grain, while the total plate pad should meet the requirements, adjust the force of the water roller on the plate is generally 0.2 Within the range of ~0.5mm, but also according to the specific circumstances, such as: the new water roller sleeve should be slightly smaller with the force of the printing plate adjustment, and gradually adjust with the use of different degrees; old water roller on the printing plate The force should be moderate. Because of the small change of the old water roller sleeve, the larger the force is, the easier it is to rub the printing plate; 2. The micrometer is used for specific adjustment. Under normal circumstances, the pressure is in the range of 0.10-0.15mm, and the difference in the thickness of the printing plate should also be noted. The impact of printing pressure; 3, should be based on the situation of the paper, ink flow size, graphic conditions and print size to timely scrubbing blanket; 4, as little as possible to use more paper powder paper, even if used should also often scrub blanket And continue to add new ink, etc.; 5, it is best to avoid the use of, even if the use should also be in the low-volume prints, the printing liquid PH value should be maintained at between 5 to 6; 6, the fountain liquid should be presented It is weakly acidic, and the bucket should be cleaned regularly to avoid deterioration of the water hopper. 7. Replace the printing plate. Even if it is used, the printing plate should be printed with less quality and less printing. The degree of use, so as not to affect product quality; 8, should not be used for printing; 9, selected in the low-volume and print quality requirements of the job is not high; 10, change the use of blanket direction. In order to avoid mistakes during installation, the best way is to use the hand to grasp the two ends of the blanket to pull a pull, the direction of use is not obvious for the extension, you can also use the identification of the north side of the blanket to determine the direction of use; 11, the replacement of the printing plate or in the use of low-volume prints; 12, the development of the plate should be based on the developer and the sensitivity of the plate to the correct development, due to improper development caused by thinning the resin film should replace the plate; 13 Replace the blanket; 14, adjust the ink, remover, improver and other appropriate adjustments, and according to the situation and the type of ink to determine the amount of use; 15, due to the density of the printing film caused by insufficient plate quality problems , should be put an end to use; 16, it is best to avoid the use, even if it should be used in low-volume and print quality requirements are not high in the living; 17, after revision repair paste paste (agent), should use one side Amount of water flushing to the non-text at the wipe; 18, replace the water roller sleeve; 19, adjust the ink roller with a feeler gauge, at the same time pay attention to whether the total thickness of the printing plate lining to meet the requirements; 20, replace the printing plate; 21, should Prints with lower quality requirements and fewer prints Used in the product; 22, in the case of the printing plate is not inked, the water roller on the plate should not idle too long machine; 23, with the wetting powder to control the stain on the plate, the graphic part may not Too much force to avoid damage to the printing plate resin film; 24, the use of cleaning agent or petrol washing water roller, after washing the water roller sleeve shall not remain in the cleaning agent or gasoline residual liquid, should be scraped off the net; 25, when the version should Pay attention to the inspection on the back side. Due to inadvertent inspection of the part of the plate after the upper plate, the lower plate should be disassembled and placed on the surface of a flat surface. The block above the convex plate at the front of the plate should be thicker. The film base should be flattened with a relatively smooth wood board or bamboo board. When operating, care should be taken not to slip the film base, and it is not advisable to use excessive force to avoid damaging the grain. 26, the paper is easy to lose powder, and the quality of the printed matter is not high enough. Do not make overprinted prints, can slightly increase the amount of fountain solution, so that the ink has a good transfer, but also should pay attention to the use of more water resistant and difficult to emulsify the ink; 27, both sides of the rubber and the tail easy to bring Dirty, should always wipe the rubber and the corresponding part of the impression cylinder 28, replace the appropriate parts or for proper repair, do not replace the accessories should pay attention to reduce the speed of printing; 29, the hardness of the hard pad than normal should not be used to prevent the machine from generating a large vibration or easy to make the plate subjected to severe wear 30、If the layout is dark brown or more serious grayish black after baking, generally do not have to use; 31, replace the printing plate or use in the low-volume job; 32, the aging of the ink roller should be replaced seriously, Less serious rubber cleaner can be used to reduce the cleaning agent, printing speed should not be too fast; 33, the blanket is too loose should be given tight, especially the new replacement rubber and liner after a period of time prone to relaxation, should Pay attention to timely tightening; 34, due to the use of ink for a long time or due to mixed with more paper powder should be replaced ink; 35, should pay attention to scrubbing blanket after changing version, not continuous use; 36, flattening or replace the rubber lining or liner The blanket operation caused by uneven padding should be promptly repaired or replaced. 37. In printing, the ink itself has a certain protective effect on the printing plate resin film, and it is easier to wear out the printing plate when the ink volume is too small; 38、Choose the center distance of the roller, and use a micrometer to measure the pressure. Under normal circumstances, the pressure is in the range of 0.10~0.15mm. 39. It is advisable to wipe the blanket, and when there is more paper powder accumulated at the slight wrinkle of the paper, Partial cleaning should be performed to avoid the possibility of abrading the plate more easily. 40. Use a micrometer to adjust the pressure balance. 41. Remove the lower plate, remove the attached debris from the gasket, and raise the part of the plate. The front side of the press sheet is flattened with a smooth wooden board; 42. Remove the barriers under the blanket to remove obstacles, the blanket or liner should be replaced or properly repaired; 43. Remove the blanket, cut or Cut the original hole, use the ruler to measure the parallel size and re-drill the hole; 44. Replace the wipe gauze; 45. Tighten the roller sleeve or replace the corresponding fittings; 46. Use a micrometer to measure the required thickness.
Fault 13 easy to paste version reasons: 1, the amount of fountain solution is too small; 2, printing pressure is too high, the dampening is more than the normal pressure under the paper to move away from the water, resulting in easy paste version; 3, with too much ink Large, the water consumption is too small; 4, the water roller hanging dirty; 5, the ink is too heavy, the flow is too great; 6, the ink drying too fast; 7, the ink is too thick and thick; 8, the workshop temperature is too high; 9, string The misalignment between the water roller and the relies on the water roller or improper adjustment between the water roller and the water roller; 10, the force of the plate water roller on the printing plate is too small; 11. The quality of the plate base is too bad; 12. The printing plate is affected. Contamination of oils and greases; 13. There is no regulation of water for different types of inks and inks of different colors; 14. Ink transfer is too large, and ink is not easily balanced; 15. Additives and modifiers added to the ink. Too much ink and other added substances; 16, printing plate grain damage; 17, printing plate by the corrosion of chemicals; 18, printing plate crease is too serious; 19, layout is too coarse and easy to damage; 20, the water roller has the phenomenon of glue jumping; 21, the dampening solution is too acidic; 22, the paper is too acidic; 23, not the correct choice Ink; 24, After the ink is cleaned, the ink roller is left with cleaning liquid or the water roller is left with gasoline or cleaning agent; 26, the machine is too much oil is flowed to the paper surface and is transferred to the ink; 27, deterioration and The emulsified ink is used again; 28, the ink on the ink roller is dry and crust is still used after being diluted; 29. ​​The downtime is long and the printing plate is not scrubbed or coated with the protective glue in time; 30. As a result of the increase, after the ink flow is adjusted, the ink roller is subject to friction and heat due to a long printing time, resulting in increased ink flow; 31. The water roller is seriously worn out without timely adjustment or replacement; 32. The ink used when ink is formulated 33 caused by different proportions; 33, the printing plate hydrophilic layer is seriously damaged or the printing plate hydrophilic layer is slightly damaged after the use of water dampening; 34, caused by too much paper powder in the paper; 35, the water supply mechanism fixed sales to窜 窜 窜 ; 36 36 36 36 36 36 36 36 36 、 、 、 、 、 、 、 、 、 36 36 36, dry oil added too much ink; 37, caused by the temperature difference between winter and summer;
Treatment methods: 1, should follow the ink large water, small water and small water to the law to give the right moisture, the amount of fountain solution should not be too large or too small; 2, to adapt to the pressure to print, need to increase the pressure printing Should pay attention to water regulation; 3, water with the size of the ink, and should also pay attention to the liquid level and the water temperature and humidity changes; 4, fold off the water roller for cleaning; 5, the ink should not be too thin, you can add Some inks with smaller fluidity are used for adjustment, and those that do not require replacement should be replaced with inks. 6. The inks that are suitable for printing should be replaced. 7. The ink flow degree should be adjusted according to different conditions. It should not be too thick because of the use of ink. For a long time gradually become sticky, should replace the new ink; 8, adjust the room temperature, in order to meet the printing requirements prevail. Adjusted room temperature can not reach the printing cartridge should use less fluid ink to print; 9, for proper adjustment; 10, with a feeler adjustment, adjustment should pay attention to whether the total thickness of the printing plate gasket meets the requirements 11, for the printing situation to appropriately increase the moisture printing, can not meet the requirements should replace the printing plate; 12, replace the printing plate; 13, four-color ink black, red, yellow, blue in order to increase the use of water, Should also pay attention to the different types of ink resistance to water differences, such as: resin type has strong water resistance, according to the situation of the printing ink to increase some water; light fast drying type of ink should be moderate or in the case of not paste version Try to control the moisture; common ink should be adjusted according to the printing conditions to use the amount of water, but the amount of liquid should not be too large, so the type of ink faster than the fast-drying type and resin type ink resistance to poor water resistance; 14, the amount of ink transfer should not be too Large, should be in the state of ink and ink easy to determine the amount of ink down; 15, under normal circumstances, the additives in the ink is not more than 15% is appropriate; 16, replace the printing plate; 17, replace the printing plate; 18, replace the printing plate or from Printing plate front convex part Press the film base with a smooth wooden board to flatten the raised parts. During operation, it should be noted that the expanded film base cannot be moved back and forth with the board to avoid damaging the sand; 19, replace the printing plate or in the low-volume job. Use; 20, find out the reasons for rubber jump, if caused by bushing wear, should replace the sleeve; 21, so that the PH value of the water bucket is maintained between 5 to 6; 22, it is best to avoid the use of acidic paper Even if