In
recent years, with the continuous improvement of printing ink technology and
equipment digitization, also printing plate formula, waterless offset printing
had been rapid developing, even with the essential change. But in China,
especially in packaging and printing
companies, there is little understanding of waterless offset printing, and
very rare in carrying out waterless offset printing. In fact, waterless offset
printing operation is simple which on the premise of environmental conditions
guarantee, equipment accuracy, and ink characteristics, can be likened to
Fool-proof offset printing.
What is the basic of Fool-proof
operation?
The
so-called "waterless" offset
printing is relative to the traditional "wet" offset printing.
Traditional
offset printing is copying image-text through the principle that oil (ink) and
water (dampening liquid) are insoluble in the printing machine. However, it is
difficult and complex to deal with the relative balance of two liquids on printing
press, and it is difficult to guaranteeing the quality stability of the
continuous printing. In addition, the dampening liquid repels the ink is
relative while printing process, and the result is that partial liquid after pollution
can stay in the equipment and pollute the environment.
And
for waterless offset printing, it repels ink by silicone oil coating, do not
need dampening liquid, do not use water, alcohol or alcohol liquid, is a green
printing technology, also excellent printing.
Easy operation, there is the
environmental protection behind
Waterless
offset printing is without the usage of alcohol and other solvents, no water
hopper device, so no need wastewater treatment, no pollution to headwaters. Reducing
or eliminating the application of solvents and chemicals when making process of
waterless offset printing edition, less emission of VOCs. Relative to water
offset printing, the noise of waterless offset printing machine is also
relatively lower.
How about the quality?
Waterless
offset printing with high resolution is suitable for small dots and random FM
screening printing. In addition, because there is no dampening liquid, dots augmenting
and abating, color density increasing, and overprinting are easier. Waterless
offset printing also increases color space, the color is more rich and bold. Consistent
of ink density, cannot be affected by the printing speed, and the printing
color will no changed in print concentration basically.
Fool's operation, but not fool
Waterless
offset printing no need dampening liquid, dampening water hopper and water
bucket roller system, so reduces the cost of printing.
Without
adjusting the balance between ink and water, the preparation time can be saved
and the production efficiency can be improved.
Overprinting
and color difference are easy to control and reduce waste during production.
The
quality is continuous and stable, and the design requirements can be achieved
in a short time after starting the machine, and the paper consumption is
reduced.
The
simple structure equipment is convenient for operation, no need operators training,
can be operating quickly and conveniently.