Printing in the selected color must consider the characteristics of the color, such as light, penetration, and lead, in order to avoid economic losses.

1, line color plus white deployment of pink, such as 10% -20% 90% -80% red white, first of all pay attention to the red light resistance, light resistance due to the ink manufacturers specify the color characteristics of the original ink, but the user two different color toner, will reduce the red-light fastness

2, in the printing market, the common lot of print in purple, purple ink unit price is low, such as single-sided printing you do not have to worry about some packaging to be double-sided printing, special attention to the infiltration of purple, because the ordinary purple with penetration sexual (01 Purple penetration) finished products after a long storage time, printed on the back of the purple will penetrate into the following printing other colors, so you want two-sided printing must consider the permeability of color, the choice of infiltration is not purple printing, to avoid loss of 01 purple with other colors permeable

Second, buy film and printing pre-press adhesion.

Buy the film must be selected after the electronic processing of the film, the surface tension of the film must reach up to 38 (refer to Table), the best corona test pen testing for film production (the printed film), despite electronic processing, but the film treatment effect will vary with storage time extend exponentially subsided, the faded speed and stored in the ambient temperature, the raw materials, film thickness, etc., and store the ambient temperature is high, the faded fast, the film contains additives such as slip agent, increasing plastic agent, an antistatic agent subsided speed faster than without additives were a lot of printing can be self-blown film, and electronic processing, but due to the possible processing procedures, the treatment gap (1-2mm between master) voltage (0,000-15,000 volts), the decolorization after printing, penetration, adhesion, slitting difficult and not easy to uncover the phenomenon, this is usually the case with test pen stroke can be analyzed, so share film or blown film must pay attention to

2, the print adhesion habits of printing checks on the machine on, that side of the printed side with adhesive tape testing for, in fact, it is unscientific, because the ink has not yet thoroughly dry adhesion testing for the best in printing After 8 hours

Third, the printing process and printing to pay particular attention to the environmental temperature, humidity, etc., so as not to increase the cost and wastage.

1, in the printing ink solvent evaporation, the moisture in the air infiltrated ink, with ink containing a certain amount of alcohol solvents, have an affinity for water, such as a small area of ​​the printing plate, the ink consumption is less, for a long time The printing is likely to result the ink gel (Hong paste) if not completely gelled increase, New Mexico, to remedy, will run out as soon as possible. Some users accustomed to printing after ink left in the ink tank, wait until the next day printing, it is easier to absorb moisture, especially in red ink, in order not to waste the ink used should be installed and tighten Guankou, a years to 3-6 months most prone to gum and print matte, in this period is best to install a dehumidifier, exhaust fan, improve the printing environment

2 after printing the finished product stacked environment temperature, humidity particularly sensitive, such as printed prints delivered to the client, the early packaging does not appear, to the late and then when the phenomenon of anti-stick, mainly due to the storage of the finished product points First, high temperature, wet, is a pressure reactor formed soften the resin in the ink penetrate into the ink film additives to the water to react due to