Offset printing has been a standard commercial printing method used globally since the 20th century.
It is also dubbed offset lithography and it offers mass printing in bulks best for all types of organizations and businesses. Offset printing is a way to print at a lesser cost and most companies use large scale printing method for quite a number of products they offer. Although the concept is not new, the technology used in this era enhances reliable, affordable and quick printing, just like any client would love it to be done.
What exactly is offset printing?
It functions on an artless principle – the fact that water and ink do not mix. Image info including art and text is placed on ready metal plates that are then dampened by ink and water by rollers on the press. The ink that’s oil based adheres to the image area, and water also adheres to the non-image area. Every part that is inked is transferred to the rubber cylinder also known as the blanket, then finally to the paper as it goes around the rubber cylinder. This whole process is called ‘offset’ because the image to be printed do not go directly from plates to paper, but transferred through another intermediary surface.
4 – Color Printing
Large scale offset printing inkjet and presses printers for desktop both use 4 basic ink colors. i.e, CMYK where inkjet printing places totally different colors of ink on the paper in a single pass through the printer, each of these colors are separately applied in offset printing with a single plate used for every color. The four inks Cyan(blue), yellow, magenta and black are deposited in dots in an explicit pattern making the eyes to believe that there is a variety of colors. This is the reason why the process of standard offset printing is referred to as 4-color printing process.
Also, it can use inks that are already mixed in specific colors containing fluorescent and metallic colors known as spot colors helping to achieve the desired hues outside the usual color range of the printing process.
Why offset printing?
The best reasons why you would opt for traditional offset printing for commercial purposes include cost effectiveness for bulk printing and above all the quality. Read on:
Cost friendly per piece
The more pieces you print, the low the amount you pay for each piece because it’s only the setup that costs more. If you go for a commercial printing firm, any extra quantity will only cost a few cents for every piece of paper used and ink.
Offset printing offers accurate, rich color and it’s done in a quality fashion for images as well as photographs. It produces sharp typefaces and even finer details.
Despite the low cost, offset printing uses richer colors and finer lines than digital printing that uses toner rather than ink. Besides, it produces wide-ranging finishes, for instance, satin, high-gloss, and matte. A pre-press proof is essential when working with a commercial printing firm as it gives you the opportunity to make all the necessary changes before the full print run is authorized.