Dyeing wool. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Dyeing wool. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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Here are the recipes wool dyeing.

Preliminary processing

Due to the fact that woolen yarn, as well as used woolen clothing, is often contaminated with oils, fats, sweat, etc., it must be washed in warm or hot water with soap and soda before dyeing. When painting old finished things, they need to be torn at the seams, grease stains removed with gasoline, and then washed with a solution of soap and soda.

To do this, take 1 bucket of water:

Soda ash 50 g;
Plain soap 50 g.

Ash liquor can be used instead of soda; 1-2 handfuls per 1 bucket of boiling water for finer fabrics and 3-4 handfuls for coarse fabrics. However, it must be remembered that these substances are harmful to wool and therefore should be well washed by rinsing in warm or cold water, slightly acidified with vitriol (from 15 to 40 g per bucket of water). Thus, the processed fabric goes directly to dyeing. Wool dyeing is most easily done with acid dyes, which, when combined with the wool fiber, do not directly require mordants.

Acid dyes

Dyeing of wool is done in the same way as for vegetable fibers. Baths are prepared by dissolving Glauber's or table salt in hot water, and separately dissolved dye is added to the bath in two or three doses. The amount of dye is taken depending on the desired color, from 5 to 40 g per 1 kg of material, Glauber's salt or table salt from 100 to 200 g. Wool dyeing

In addition, for acid dyeing, it is necessary to add acids to the bath. The best, but also the most expensive, is acetic acid, since sulfuric acid can give dirty tones, and hydrochloric acid can give yellowish tones. Therefore, acetic acid is used to obtain light, clean shades.

The amount of acid varies depending on the color: for light colors add 15-20 g, for dark colors 30-45 g of vitriol or vinegar essence per 1 kg of fabric or yarn. The weighed or measured amount of acid is diluted and put into the bath after 0,25 hours in three doses.

Take about two buckets of water for a bath per 1 kg of fabric. Wet, slightly wrung out material is dipped into a dye solution heated to 40-50 °C and continued to be heated slowly, bringing to a boil in 0,5-0,75 hours, after which it is dyed for another 1 hour at a low boil. After dyeing, the material is washed well in cold water.

Examples of dyeing wool with acid dyes per 1 kg of fabric or yarn:

Black color

Wool-black AT 4B 40 g;
Glauber's salt 200 g;
Vitriol oil 40 g.

Blue colour

Wool-strong blue AT 25 g;
Glauber's salt 150 g;
Sulfuric acid 10 °Be 200 cm3,

Red

Bordeaux AT 30 g;
Glauber's salt 200 g;
Acetic acid 30% 30 g.

Yellow

Methanol yellow AT 10 g;
Glauber's salt 100 g;
Acetic acid 30% 35 g.

Author: Korolev V.A.

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