How does wool react with dye
The history of the dyes blue wood, cochineal, Reseda or madder with their dyeing processes is always fascinating for the students. This gives you the motivation to dye something yourself with one of these dyes. The pre-pickled fabrics are extremely absorbent for dyes. During the dyeing process, make sure that the stained fabrics are not placed on colored surfaces (chair backs, seats), otherwise the dye will be pulled out. It is best to dye silk scarves at school. The cloths stained in alum are tightly tied with ties or knots before dyeing.
|The dye does not reach the bound areas during dyeing.|
The dye does not stain the bonded areas, so that you can conjure up lines, circles, suns and batik patterns of all kinds on the cloth. The patterns can be duplicated by folding them several times and then tying them off. The longer the tied silk scarf remains in the dye bath, the more intense the color and the more the dye stains through the tied areas. In the past, dyers used a little trick: they added a little lime (calcium carbonate) when dyeing. The resulting color varnish is more intense in color and more lightfast. If you add a teaspoon of calcium carbonate to the dye bath when dyeing with Reseda, you get a bright yellow on the silk.
|Dyed silk scarves with a tie-dye pattern|
|The color intensity can be varied through the duration of the dyeing and the concentration.|
- Differentiate between the terms dye and pigment in your folder.
- Explain the process of pickling.
- Find out about two selected stain dyes and create a small lexicon in the folder!
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