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According to the report of the German printing media on January 5, 2016, when you find metal particles that do not belong to the machine in the inking unit of the sheet-fed offset press, what will you do? You must find the reason. If you look on the entire ink roller and water roller, you will find the real reason: metal particles with a geometric size between 0.1 and 0.8mm. On sheet-fed offset presses, these metal ballasts mainly damage the metering water roller and some synthetic rubber rollers. All well-known German printing houses that use sheet-fed offset printing inks from Epple ink factories have had this experience.
In 2013, a well-known printing plant complained about the supply of printing presses and consumables, and attached many small particles of bright light that may come from the ink to the different ink rollers and water rollers of the sheet-fed offset press. Surface damage has occurred on different ink rollers. Over time, this situation has also occurred in other printing houses. Experts and appraisers have ascertained whether and to what extent possible particles exist within the scope of analysis and research on damaged sheetfed offset presses. At the same time, I also thoroughly investigated what the particles are and where they came from.
To this end, in the laboratory analysis and research of the ink roller and ink samples of sheet-fed offset printing presses. These printing plants use printing inks also manufactured by Epple Ink Company. The goal of the analysis is to locate, separate and identify material properties for individual particles. The original ink samples of Epple Company were analyzed in the laboratory.
The analysis result clearly shows that almost all the rollers inspected have metal particles with burrs, rods, iron chips or small pieces on the entire surface. The raw material of these metal particles is like hard tool steel.
In addition, it is concluded from the extensive investigation results that there are many metal particles from Epple ball mills in a series of ink cartridges inspecting Epple ink factories. The appearance of the metal particles in the ink cartridge is the same as the appearance of the metal particles on the surface of the ink roller.
The investigation revealed that Epple Ink Company used a ball mill to disperse the ink very finely, so the metal particles came from the steel balls of the ball mill. Because the steel balls that collide with each other produce a grinding effect, if the steel balls are not replaced regularly, the ball will be mechanically overloaded due to long-term use, for example, it will break due to long-term fatigue. Therefore, cracks appeared on the surface of the sphere, and the consequence was peeling metal particles. These metal particles are loaded into the ink cartridge with the ink.
In some cases, the loss of less than 7-digit euros was settled by Epple ’s liability insurer according to some appraisal opinions. This year, the loss declared by multiple sheet-fed printing machines of a large online printing plant was not seen by Epple The ink company made a settlement outside the lawsuit, and all the claims were rejected, so that in accordance with the recommendations of experts in this regard, they have filed a lawsuit in the Dresden state court.
Now another large online printing plant has also made an expert appraisal of similar damage to its sheet-fed printing press.
However, the relevant manufacturer (Epple Ink Company) emphasized that the reality of the survey by pint.de/German Printer Magazine is incomparable with the past laziness. Carl, chairman of Epple Ink, said, "This is a completely different situation. Claims are always reviewed separately; there is no actual or legal reason to apply another claim from the assessment of one claim. There is currently a legal dispute with the customer. , The customer believes that the defective product is supplied. According to our neutral expert ’s recommendation, the case should be carefully investigated. The investigation concluded that the claim against Epple is unreasonable, and Epple ’s ink is not causing the printing press Cause of damage ". Epple Ink Company is not afraid of legal disputes in the face of its QS standards. Epple Company finally said, "This kind of dispute may still be long and energy-consuming."
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