Flooding treatment of color printing ink

Uniformity of ink color printing layout to what extent, a direct reflection of poor product quality worries. In particular, multicolor overprint of the packaging and decorating printed matter, more large-scale layout is used for the substrate, the large amount of printing by the ink, if not a very good grasp of technology off, it is difficult printed clothes but uniform ink levels, also not reach the desired results. A high-quality color printing products, the appearance should give people the feeling of the visual to the United States. The beauty of the first products from India ink show brightness and uniformity felt. Some operators due to lack of practical experience in technology, in order to overcome the uneven layout ink, Flooding phenomenon, often blindly increase the transmission capacity to meet the printing ink light and solid ink products visual effects, which occurred over the Indian goods, ink the end of imprinting is not strong and the ink film crystallization and other adverse effects, this is the process operation malfunctioned, requires attention. Here’s ink analysis Flooding in several situations:

1, printing paper sizing degree of imbalance, paper smoothness Flooding caused by poor layout ink

Technology Practice shows that the amount of ink on rough paper great. When the printing paper surface roughness when the poor. Flooding layout prone to the phenomenon of ink on. This is because the paper fibers interwoven produce a certain gap, is not well covered by uniform coating layer. In this way, embossing paper with the printing plate when the surface there is poor contact between the ink layer-like, in this case, if that is the layout blind for lack of ink to increase the amount of ink lost volume is bound to produce printed materials sticky dirty failure, is not desirable. But should be appropriate to increase the printing pressure. To smoothness bad paper and layout ink layer to achieve uniform and adequate embossing contact conditions, so as to achieve a better printed product to eliminate the phenomenon of Flooding layout ink to ensure that the printing ink layer uniform, flat serve.

Second, inadequate care at the end of a solid plate, printing ink pressure on the weak Flooding caused by layout

Plate on the letterpress printing process, the use of what kind of care at the end of sticky version of the transfer of printing ink A great deal. Experiments and processes in practice clear that the traditional and backward plywood plates at the end of the period from care, not only the existence of many problems (such as the printed version of the low rate of resistance to printing, overprint are not allowed, etc.), but also easily lead to undesirable transfer of ink, giving rise to layout ink inequality, less than from happening. This is mainly because at the end of care itself is not solid wood, the possibility of large deformation, resulting in the printing pressure instability, layout on the ink layer can not be uniformly transferred to the copies, such a situation is often easy for people mistakenly believe that is for lack of ink. On the other hand, due to poor flatness of wood at the end of care, can not meet the normal layout and mass ink by the ink. If using a multi-layer plywood for the end of care, play the field when the proofs are often very different thickness of the entire layout ink, and some parts of ink layout clear disturbances, and some parts of ink a bit subdued at first glance, to give people Inking uneven ink under the illusion fabric. The greater the amount of input ink, the ink washed out parts of layout, visual effects, some good, but it is also very prone to stick dirty products, and will produce trapping and other undesirable defects, must not take. The best way, in addition to a good cushion serious version of the operating techniques, outside of customs, for printing a large area of the plates, such as the format for more than 16 open, and should adopt the good flatness when compared with a solid metallic version of care may be better to prevent the Flooding layout ink phenomenon.

Third, more rigid rubber roller or a roller position adjustment undesirable, communication fabric ink ink ink layout Flooding caused by uneven

Color printing more pages are usually large quantity of the multicolor ink overprint products, large format printing to achieve even modest another ink coating, rubber roller more rigid, then the transmission can not be achieved even ink and fabric ink, because plastic Roll Hard of its stickiness on the weak and not conducive to pass ink. On the other hand, communication ink roller, ink roller and pains to depict the uniform roller, respectively, can not be better with the ink fountain rollers, ink rollers and the string plate bonding, is also the printing ink layout Flooding causes. This should be one by one, careful analysis and examination, found to regulate bad there are gaps, should be re-tuned to eliminate gaps. Right-axis head, shaft-hole wear and tear caused by gap repair measures should be taken. So as to better avoid the transmission ink, fabric ink uneven Flooding caused by the phenomenon of the product layout to ensure the printing quality.

Fourth, there is no ink in the anti-viscosity mixing evenly, causing layout of the weak pro-ink ink ink to pass bad Flooding caused by layout

Printing Plate products, inks by adding anti-viscosity, may play a certain amount of anti-sticking effect. If the excessive amount of anti-viscosity, such as more than 4%, or anti-viscosity in the ink is not uniform stirring song playing and can not penetrate into the ink evenly, then the anti-particle thick spread thinner sections, the impact of the Indian version of the pro ink, printing ink will be presented after the product layout Flooding shape. So, should a good tune off ink technology, using anti-viscosity, they would first use the right amount of light oil or oil transfer ink to Mexico to join the anti-transferred into the slurry viscosity, the addition to the ink, the This anti-viscosity liquid easier to penetrate into the ink, not only has to receive a better anti-sticking effects, but also to avoid the printing ink products Flooding phenomenon.

Tags: color, Flooding, Printing