Key printing terms explained simply
The Technical jargon in the printing industry can sometimes leave you feeling rather at a loss. Unless you’ve had formal training in graphic design or work as a printer, you’re bound to find yourself with a few question marks in your head when faced with various technical terms. Take, for example, the Ordering Business cards or creating flyers for the newly established company without the help of a graphic designer.
To help you find your way around the Find your way more easily through the jungle of technical termsIn this blog post, we’ve compiled the most important ones and explained them briefly and concisely for you.

What are CMYK and RGB?
These two abbreviations describe Colour spaces we encounter in everyday life. But before we focus on describing these two, let’s first look at the actual Definition of colour Colour: This is produced by light and is perceived individually by each of us. We distinguish between so-called light colours and body colours. The Light colours originate directly from a self-luminous light source. Body colours, on the other hand, are a visual perception of colour reflected by the surfaces of various objects.
RGB stands for the primary colours red, green and blue, which are primary colours. By mixing them together, it is theoretically possible to produce up to 16 million shades. Incidentally, the combination of these three primary colours results in white and is known as additive colour mixing Described. However, there is a catch with light colours: they cannot be used for printing. If we think back to school, where we used to mix the primary colours together with watercolours in art lessons, we’ve all experienced the following effect: the more colours we stirred together with our brushes, the darker the colour became. The same applies to printing, so a different solution is needed. Where do we see RGB colour spaces in everyday life? The answer to this question is right before your eyes as you read these lines: RGB colours can be found on our screens at the PC, smartphone or tablet, or even on digital photos. If you were to zoom in on a section of the screen in front of you, you would see that everything is divided into small red, green and blue dots.
The CMYK colour model is used for printing, which is for Cyan, Magenta, Yellow and Black stands for. But, the attentive reader may well ask, what does the letter ‘K’ stand for? The fact is that, in theory, when the three colours cyan, magenta and yellow are mixed together, they produce black. However, in print, this is not rich enough for the human eye, so a so-called key factor ‘K’ is added to enhance the contrast. During printing, the colours are usually applied one after the other onto white paper, resulting in the various shades. Unlike RGB, CMYK is a subtractive colour mixing. By adding more colour, the reflected light is reduced
drucks.ch tip:
The CMYK colour space is smaller than the RGB colour space. This means that fewer colours can be reproduced in print than are displayed on screen. It is therefore important to always convert images to CMYK beforehand, as this allows you to ‘simulate’ the result on paper and make adjustments to the appearance yourself (such as increasing saturation or contrast, etc.).

What is an ‘Überfüller’?
The ‘Überfüller’ refers to the Bleed allowance at the edge of a printed product. This prevents the unwanted cropping of a graphic that extends to the edge of the paper. In practice, this means that the graphic must extend at least 2mm beyond the crop marks to avoid a ‘white flash’ at the edges.

What are spot colours & process colours??
The Most well-known colour systems, both of which can do the same thing in their own way, are the HKS or Pantone colours. The advantage of a spot colour is its colour consistency, as it is not subject to fluctuations. They are particularly important in the field of corporate branding, for instance when it comes to the colour accuracy of a logo. The colour gamut for spot colours is much wider than that of CMYK, as they are based on 9 (HKS) or 14/18 (Pantone, Pantone Plus) primary colours, which are mixed together.
Colours | HKS colours |
| Developed in 1963 by Pantone LLC, the Pantone colour chart set out to conquer the world of designers and graphic artists. Internationally, Pantone is the standard when it comes to colour selection. The basic colour guide offers a selection of 1,755 spot colours. However, there are further variants available for different applications. | HKS stands for the colour mixing system developed by Hostmann-Steinberg (H), K+E Druckfarben (K) and Schmincke & Co (S). Established in 1968, the system now offers 88 base colours and 3,520 spot colours. |

What is grammage?
Alongside the format, grammage is the most important selection criterion for printed materials. It refers to the Grammage per square metre of paper or card. The higher the grammage, the thicker – and therefore more sturdy – the paper is. Depending on the intended use, you should the right type of paper can be selected.

What is a varnish finish?
Applying a varnish is one of the Print finishing options. It gives printed products both elegant brilliance as well as a practical protection against external influences such as abrasion or fingerprints. Varnishes can be applied either over the entire surface or in specific areas. UV varnishing and film lamination – also known as cellophane lamination – offer long-term, durable protection.
What is partial white printing?
When printing on transparent surfaces, areas that appear white on screen normally remain transparent, whilst colours appear translucent. It is only through spot white printing that it becomes possible to achieve a virtually opaque print on transparent films and acrylic glass. Both the Colour brightness as well as the Legibility of text elements are thus increased. The following materials can be partially printed in white: acrylic glass, wooden signs, brushed aluminium and transparent adhesive films
What does 1c / 4c / 0 mean?
The C stands for Colour, in German: ‘Farbe’. This means 1c = single-colour print and 4c = multi-colour printing. 1c can, for example, refer to the colour black or a spot colour and be used in letterpress printing. Whereas 4c stands for the four CMYK colours, which we have already described above. 0 indicates unprinted.
For example, if you place an order with us for 4c/0 business cards, we know that you want full-colour business cards printed on one side only. Or if you order 1c/1c leaflets, these will be printed in a single colour on both sides.

What is a 3D varnish?
This is a finishing option that allows printed products to be tactile dimension added. For example, lettering or logos are coated with a thick varnish that makes them stand out – they can then be felt when the product is touched. The opposite of this is letterpress, where selected areas are pressed inwards, rather than outwards as with 3D varnish.