To choose a better printing company, first you need to know about the ink the company used. By different ink, the printing colors can be qutie different effect.

What kind of ink is better for printing? You need to check from below details:

1) Concentration: Ink with high concentration uses less ink in printing, and the ink color is better; ink with low concentration uses more ink in printing, and the ink color is light;

2) Fineness: the size of the ink particles, the fineness of the ink is high, the ink concentration is large, the dots of the printed matter are clear, full and powerful; the fineness of the ink is low, the dots of the printed matter are prone to hairiness, and the printing resistance of the printing plate is low;

3) Viscosity, high viscosity, easy to cause uneven ink transfer, dot fuzzing and patterning; low viscosity, easy to cause ink emulsification and page floating;

4) Fluidity: Large fluidity will make the level of graphics and texts unclear, and the ink color will not be full; small fluidity will make the ink spreading unevenly and unevenly, which will easily cause the front darker and lighter or lighter front on the same printing surface Deep phenomenon

5) Light fastness: Ink with good light fastness, the printed product color is brilliant, the graphic dots are full, strong, rich in three-dimensional effect, and can be stored for a long time; ink with poor light fastness, the color of the printed product is easy to become lighter and darker;

6) Water resistance, acid resistance and alkali resistance: For offset printing inks, special attention should be paid to inks with strong water resistance, acid resistance, alkali resistance, water resistance, acid resistance, and alkali resistance. The printed products have bright colors, clear layers and clear dots. ; Water-resistant, acid-resistant, alkali-resistant, poor ink, the printed product is dull and weak, the level is unknown, and the dots are not smooth.

Besides, the factory also need to pay attention to the Fountain solution.

The pH of the fountain solution is generally between 3.8-4.6. In actual production, it should be adjusted according to the specific conditions of the printing conditions:

If the dampening solution is too acidic, the corrosiveness of the blisters and the lipophilic basis of the pictures and texts in the blank part of the layout will increase, which will easily cause the pattern phenomenon and reduce the printing resistance of the printing plate; at the same time, the ink is easy to emulsify, and the ink roller Deinking occurs and the printed matter is dull and dull.

If the dampening solution is too acidic, the hydrophilic and oil-repellent properties of the blank part of the printing plate will be weakened, the layout is easy to get dirty, and the printing will cause smearing phenomenon (when printing with UV ink, if the dampening solution is too acidic, The layout is easy to get dirty).

Choose Minglai Packaging, you have no worry for the such issues. Because our captain of printing has experience for printing more than 15 years. He know better which ink and fountain solution is better for printing. And our printing products has won high reputation from our clients. If you have any need for paper printing prouducts, feel free to contact us at info@boxforgifts.com