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  • Noris-Color GmbH
    Encyclopedia about stamp pad inks I. Colouring matters 1. Dyes 2. Pigments II. Development of colouring matters then and now 1. Origins of colour matter a) Natural dyestuffs b) Synthetic dyes c) Pigments 2. International classification of colouring matters III. Influence of light on the shade 1. The spectral colours of sunlight 2. Mixture of colours IV. Origins of stamp V. General informations about stamp pad inks a) Water based stamp pad inks b) Oil based stamp pad inks c) Alcohol based stamp pad inks Basic information I. Colouring matters Colouring matter is a collective name for all colouring substance. In this category are dyes and pigments: 1. Dyes: Dyes are organic colouring matters, which are completely soluble in solvents and / or binding agents and therewith enter into a real chemical amalgamation. You can clarify this exact definition with an example: If you put some sugar candy into hot water and stir it some time, you cannot see anymore sugar candy particles when you look through the glass afterwards. It has completely dissolved in the water. 2. Pigments: Pigments are colouring matters, which are existant insolubly in solvents and / or binding agents. This can also be clarified by an example: If you try to mix carbon black with water, you could still see particles of the carbon black, even after long stirring or shaking. The same can be watched with coffee. Consequently the carbon black and the coffee are only finely dispersed, but not completely dissolved. Pigments are mainly used for the production of colours with good covering power. Hence it can be deduced as follows: Dyes amalgamate completely with solvents and / or binding agents, while pigments are only dispersed finely, but not dissolved completely. Furthermore: Dyes result in transparent solutions, pigments in non-transparent solutions.
  • Schwarz Druck
    The cornerstone of our diverse range of services focusses on the areas of form printing, ticket printing, and printing security documents and documents with a monetary value. Our strength lies in the individuality of our products: card integration, personalization, security marks and guilloches are just a few of our techniques that make this possible. Check it out for yourself. We additionally offer software development, inspection and security systems as well as machines for the further processing of our products. See the section entitled "Service" for further information.