Different Types Of Commercial Printing

Printing is carried out on three different levels

. The three levels are, Micro, mid level and last of all is macro. The first two are limited to the digital level ranging to the use of laser colored and digital printing. The real core of commercial printing is "Offset printing".

Offset printing is a technique which requires inked images to be pasted on the paper. It wouldn't be wrong to say that the images are offset, transferred onto the paper. When lithographic is used as its combination, which is based on the repulsion of oil and water, a flat Plano graphic image carrier gets ink from the ink rollers and while the non printing area attracts water based film, called the fountain solution.

Now days; the image from a computer through use of different techniques of desktop publishing is taken directly. This saves cost and also time from one complete image evolution.

The other types of printing are:

Flexography:

In this the image from the computer is taken on a flexible material. The ink used here is water based and the image plate is made up of rubber or polymer material. In flexography, there is an ability to print images on the paper, brown paper, packages, acetate film, plastic, cartons, wall paper and etc. Due to the non oil based ink, it has the capacity to dry fast.

Gravure Printing:

In this printing, the bottom roller sits in the fountain of ink and the top roller holds the impression of the image to be printed. While doing so, a roll of paper is threaded through the rolls and the paper receives the image. Although this is an obsolete method but still somewhere gift wrappers and magazines are still being printed this way.

Thermography:

Thermography involves the heating of the paper and adding powder to the ink and the print is raised on the paper. Often used in invitation cards, visiting cards, letter heads. Other materials which are used here depending upon the work required are metallic resin, resin, glitter, varnish, Pearle scent resin, static resin, high viscosity, laser safe powders.

They are all used in different combinations to produce different effects and make the print more inviting. This is how we get professionally printed posters, brochures and the rest of printed stuff that we see around.

The fact is that this all can also be done at home with a printer attached to your computer. But the cost of printing one page would be too high to be afforded when it comes to bulk printing. This is what makes commercial printing so popular that businesses can get their printing jobs done at a much lower cost.

by: Kathleen Willson01

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