presentation on offset printing

1. Student Of BCA
III SEMESTER

2. Offset printing was invented at the beginning of 20th
century in response to increased requirements for the
printing speed. So far used lithographic method could not
make enough copies and required to be improved.
The first offset printing machine was built in Germany,
Europe, by Kašpar Hermann, a German-US citizen. He
also patented the principles of a rotary offset machine.
offset printing is nowadays the most common printing

3. CF47II-2 Printing Machine,Offset Press,Offset Printer

4. Offset printing process consists of several
parts:
1. the inking system (ink fountain and ink
rollers).
2. the dampening system (water fountain
and water rollers).
3. the plate cylinder.
4. the offset cylinder (or blanket cylinder).
5. the impression cylinder.

5. In this process, ink is transferred
from the ink fountain to the paper in
several steps:
1. The inking and dampening
systems deliver ink and water
onto the offset plate covering the
plate cylinder.
2. The plate cylinder transfers the
ink onto the blanket covering the
offset cylinder.
3. The paper is then pressed against
the offset cylinder by the
impression cylinder, transferring

6. It is the most common method for printing of
newspapers, books, magazines, brochures, leaflets,
and maps. So the most often used substrate is paper.
The offset printing does not serve a wide choice of
substrates but due to a high print quality, printing
speed and relatively low costs for the pre-printing
preparation work, the market share of this method is
approx. 60%.

7. PRINTING OF NEWSPAPER THROUGH OFFSET
PRINTING

8. MAZAINE PRINT
THROUGH OFFSET

9. 1. Artwork Reproduction
Offset printing jobs are a better choice for artwork reproduction
and in other situations where the images being printed need to be
represented perfectly. The image quality with this printing
process can be much higher than digital printing, but the cost is
also higher because of the added time and labor involved in the
offset process.

10. 2. Comparing Offset Printers
Finding the best printer means evaluating
different companies and comparing the offset
experience that each one has. Someone who
has never handled this type of job before is not
the right choice. There are many common
mistakes that can be made and you want results
that are perfect for your printed materials.

11. 3. Quality and Perfection
One of the benefits with offset printing jobs is that
you will get the highest quality on a consistent basis,
so you can be assured that each printed item looks
identical to the ones printed previously. There are
some projects that require perfection each and
every time, and the offset process can provide this.

12. 4. Computer to Plate
Plates are used with the offset process, and these
plates must be specially created for the printing
job. This is what provides consistent high quality,
but it also requires additional time and effort in
order to design and produce the required plates.
This means that extra time must be allowed for the
plates to be designed and produced.

13. 5. Cost versus Quality
The cost for offset printing jobs will be less
than for other high quality image printing
processes, but more than digital printing.
The more items printed the lower the cost
will become on a per piece basis, so larger
orders may be more cost effective than
smaller orders.

14. 6. Experience is Critical
The best printer for the job will be a reputable
company that has been offering the offset
process for many years. These are the
companies that have the knowledge, skill, and
experience necessary to handle your job the right
way and ensure that you get the best possible
results when you place an order. If a company is
an unknown then it is a risk you may not be
willing to take.