(1) The viscosity of the ink is not appropriate. If the viscosity of the ink is too low, it is easy to paste the plate during printing. At the same time, the water supply must be increased. Corrugated Box Printing Industry Failure Caused By Consumables

      The water roller in the transmission will also stick the ink on the plate cylinder back, making the fountain liquid dirty. In addition, the printed matter will deform and bend after absorbing a large amount of water, which will bring difficulties to post printing processing.Corrugated Box Printing Industry Failure Caused By Consumables

       In addition, the ink with low viscosity and cohesion will be damaged during high-speed printing Centrifugal flying ink will occur. If it flies to the printing plate and is stuck back by the water roller, the fountain solution will get dirty, which in turn will cause plate pasting. Corrugated Box Printing Industry Failure Caused By Consumables

       The ink viscosity is too high, the inking is difficult, especially the mesh adjustment can not be printed. Even if the ink amount is increased, the effect is not obvious, and the printed matter is prone to adhesion.Corrugated Box Printing Industry Failure Caused By Consumables

（2） Printed matter is easy to fade. High gloss and wear-resistant ink should be used when printing corrugated box paper to ensure that the printed pattern can withstand frequent handling and friction during transportation. Corrugated Box Printing Industry Failure Caused By Consumables

      Do not mix gasoline when adjusting the ink, because gasoline will dissolve or crack the cohesive cross-linking substances in the ink and destroy the chain structure of the binder. Corrugated Box Printing Industry Failure Caused By Consumables

         Do not add too much ink blending oil, otherwise the connection in the ink will be damaged The pigment resin will be diluted and separated from the pigment, so that the pigment will be suspended on the paper surface in powder form, and the grease and its dissolved additives will be absorbed into the paper by the paper fiber.

        If such printed matter is directly bonded with the corrugated, it is easy to scratch or fade in production: if it is coated, foaming and floating will occur, which is easy to take off the film; if it is polished, it is easy to fade And scratches; if calendered, the varnish and pigment are easy to be stuck back and fall off by the steel strip.

（3） The drying of printed matter is too slow. This has a lot to do with ink blending. If there are too many lipids in the ink when printing a large area of the field, the lipophilic and lipophilic nature of the paper fiber will affect the volatilization and drying of the additives. Corrugated Box Printing Industry Failure Caused By Consumables

     Moreover, the large area of the field after printing often needs polishing, which is more unfavorable to the drying of the ink.Corrugated Box Printing Industry Failure Caused By Consumables  

        In addition, dry oil can not be used too much in the high-temperature drying season, which can be prevented The adhesive replaces part of the dry oil and appropriately increases the powder spraying amount to prevent adhesion, which may bring trouble to the later film coating process, but the powder removal process can be temporarily added during film coating.Corrugated Box Printing Industry Failure Caused By Consumables

Paper related printing failure   Corrugated Box Printing Industry Failure Caused By Consumables  

        The quality of face paper shall be strictly controlled. The strength, tightness, elongation, flatness, gloss, whiteness and other indicators of paper shall be tested when entering the factory and ensure that they meet the requirements. The color of face paper will affect the printing effect of main color. Corrugated Box Printing Industry Failure Caused By Consumables

      The coating uniformity and calendering flatness of face paper also have a great impact on screen tone printing, which is easy to cause inconsistent tone of flat screen printing Especially, the mesh tone of 30-60% is the most sensitive.Corrugated Box Printing Industry Failure Caused By Consumables

       The deformed paper will wrinkle during printing, so the humidity of the workshop should be adjusted to restore the balance of the water content of the paper. It is difficult to transport the bent paper. Corrugated Box Printing Industry Failure Caused By Consumables

      The air volume of the loose paper blowing nozzle and nozzle should be adjusted according to the bending degree of the paper, and the strength of the paper feeding rough wheel should be appropriately increased to ensure good paper conveying.Corrugated Box Printing Industry Failure Caused By Consumables

         During printing, it should also be noted that the fiber direction of the face paper should be perpendicular to the corrugated square when the box is packed For products that need to be printed twice,Corrugated Box Printing Industry Failure Caused By Consumables

       The paper shall be loosened on time after printing and tightly packed after initial drying to prevent paper deformation from affecting overprint.Corrugated Box Printing Industry Failure Caused By Consumables

        For the paper with powder falling, the viscosity of ink can be appropriately reduced or the printing pressure can be appropriately reduced to make up for it, and the layout with the least pattern and text can be arranged in the first color group,Corrugated Box Printing Industry Failure Caused By Consumables    Corrugated Box Printing Industry Failure Caused By Consumables

       so that the paper powder and paper wool can be stained when printing the first color as much as possible, and the printing speed should not be too fast.Corrugated Box Printing Industry Failure Caused By Consumables

          The blanket should be washed frequently. For some paper with serious powder and wool falling, pre press or pre print is adopted Although the method of coating anti adhesion agent (adding a small amount of white ink) can solve the problem to a certain extent,Corrugated Box Printing Industry Failure Caused By Consumables

        The consumption of materials, energy and time will undoubtedly increase the cost, and there will still be a variety of problems in post press processing.Corrugated Box Printing Industry Failure Caused By Consumables