More and more newspaper printing factories and offices had started to manage newspaper printing quality with lean
management, adopted the method of process control to improve the quality of
newspaper printing. Controlling with the nodes of all process flow is the key
to improve the efficiency of process-control.
Picture
processing
The printing effect of pictures determines
the aesthetic of the newspaper in a great extent. Therefore, our factory
requires not only guaranteeing the basic printing quality of newspaper, but
also requires being full in color and rich in layers. Excelsior is our seeking
goal.
Our factory requires not only the prepress staff
is familiar with the printing process; understand the relevant parameters of
printing, but also high artistic accomplishment and aesthetic. This is the only
way to accurately analysis and flexibly processing all kinds of pictures.
In addition, the color restoration ability of
the printing staff is also an important factor to affect the final printing
effect of the picture. Therefore, the printing effect of the picture is closely
related to the prepress processing and the printing processing personnel.
Accordingly, we convene all the prepress
processing and printing processing personnel to carry out the technical
exchanges. Analyze and solve problems. Continue to urge them to make technical
improvements, and arrange technical personnel to analyze the printed daily
newspaper picture quality, and select some excellent and some inferior pictures,
rewarded and punishing at the same time to the related prepress processing
personnel.
Ink color control
Ink color control is the difficulty in
newspaper printing quality controlling, because there are many factors related
to the ink color control. How to effectively control the ink color? Different China printing factories has their own experience. And our factory mainly to control the ink color through
the following methods.
(1) Using the measuring and controlling points to control with ink color.
In the process of printing, the printer can
judge the quality of the printing by observed printing measuring and
controlling points. This control method requires the printer should be
excellent in color and dots judgment; otherwise it cannot fully play its role.
But due to the impossibility of each ink path are put a group of control strip,
so the control method is relatively rough. Can only guarantee the basic balance
of color, and no obvious color deviation. But the advantage is not increase
process time and cost, good feasibility and effectiveness.
(2) Controlling with color of masthead and fixed block. Usually, the color of
masthead, header or header column, lines are fixed. Printing workers can make
color recovery according to the standard of proof. Our factory requires collecting
the entire printing masthead every day to be ensured that the colors are
consistent.
Newspaper
appearance quality
Newspaper appearance is the most intuitive
factor for readers to evaluate with newspaper quality. The most common problem
of newspaper appearance quality is the dirty page which after squeezing and
rubbing. Our factory mainly relies on the front-end factory process controlling,
to avoid the squeezing and rubbing dirty phenomenon of newspaper.
(1) Segment
before printing, requires reasonable setting of picture processing.
(2) Fixed several commonly used inks, using better drying ink.
(3) Segment
of printing, controlling with balance of ink and water.
(4) Adjust equipment pressure when in printing and after printing.