- Noris-Color GmbH
Encyclopedia about stamp pad inks
I. Colouring matters
II. Development of colouring matters then and now
1. Origins of colour matter
a) Natural dyestuffs
b) Synthetic dyes
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
I. Colouring matters
Colouring matter is a collective name for all colouring substance.
In this category are dyes and pigments:
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.
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.
Dyes result in transparent solutions, pigments in non-transparent solutions.
- Schwarz Druck
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