Looking for the highest possible print quality at the lowest unit price? The answer is offset printing. This technology is the gold standard for producing flyers, catalogs, books, and corporate packaging in larger quantities.
What is Offset Printing?
Offset printing is the most widely used flat printing method. It is called an "indirect" method because the printing plate never directly touches the paper. The image is first transferred onto a rubber blanket (cylinder) and only then printed onto the substrate.
This principle ensures that the printing plate does not wear out quickly and the rubber cylinder can perfectly transfer even fine details – even on paper with a rougher texture.
How It Works Inside the Machine (Step by Step)
Several phases must occur to create a perfect print. Modern offset printing is a highly automated process:
- Plate Exposure (CTP): Data from the computer is exposed onto printing plates (metal sheets) using CTP (Computer-to-Plate) technology via laser. A separate plate is needed for each color (CMYK).
- Dampening and Inking: In the machine, the plate is first moistened. Water adheres to the non-printing areas. Then, greasy ink is applied, which adheres only to the printing areas (grease and water repel each other).
- Transfer (Offset): The image is transferred to the rubber cylinder.
- Printing: The paper passes between the rubber cylinder and the impression cylinder, where the motif is imprinted.
Offset vs. Digital Printing: The Big Comparison
The most common dilemma for our customers. When should you choose which technology? We have prepared a clear table for you.
| Feature | Offset Printing | Digital Printing |
|---|---|---|
| Unit Price | Decreases as quantity increases (high setup costs). | Constant (almost the same for 1 or 100 pieces). |
| Ideal Quantity | Hundreds, thousands to hundreds of thousands. | Single pieces to low hundreds. |
| Color Accuracy | CMYK + Spot colors (Pantone). Highest color fidelity. | CMYK only (Pantone simulation). |
| Personalization | Impossible (every sheet is the same). | Easy (each print can have a different name/number). |
| Speed | Slower (requires plate production, drying). | Immediate (prints directly from data). |
Colors and Finishing: Why Does Offset Look So Good?
One of the main advantages of offset printing is working with Direct Colors (Pantone). While digital printing mixes all shades from only four basic colors (CMYK), in offset, we can mix a specific shade "in the bucket" before we even print. This is crucial for large companies that insist on the absolutely exact color of their logo.
Finishing Options
Work doesn't end with printing the sheet. Offset prints can be further refined, increasing their prestige:
- Lamination (matte/gloss/soft-touch): Protects the printed product and gives it a luxurious feel.
- UV Varnish (partial): Highlights only specific parts (e.g., a logo), which then shine on a matte background.
- Die-cutting: Shaping folders, boxes, or specific flyer shapes.
FAQ: Frequently Asked Questions about Offset Printing
What is the minimum quantity for offset to be worth it?
Generally, the "turning point" is around 500 to 1,000 pieces for A4/A5 flyers. For business cards, offset is only worthwhile from thousands of pieces. For smaller runs, we recommend digital printing.
How long does production take?
Standard time is 3 to 5 working days. Time is needed for plate exposure, the printing itself, and subsequent drying of inks before cutting. If you are in a hurry, we can also offer express modes at TAEDA.
Do I need to supply print data in CMYK?
Yes, the CMYK color space is a necessity for offset printing. Data in RGB (monitor colors) must be converted, which can lead to a slight color shift. Read more in our article RGB vs CMYK.
Do You Want to Print Efficiently? We Will Help You
Unsure whether offset or digital printing is suitable for your job? Send us a non-binding inquiry.
At TAEDA, we ensure:
- Selection of the most economical technology.
- Check of your print data (so you don't print errors).
- 30 minutes of graphic work for free for minor adjustments.
Or check out our range of Corporate Printed Materials and Offset Printed Promotional Items.