Dyeing woven straw. simple recipes

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

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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Straw for dyeing in light delicate colors must first be bleached. Bleaching can be done with hydrogen peroxide or hydrosulfite (see Straw bleaching). Before bleaching, the straw must be boiled in water for 1 hour to remove silicic acid, which interferes with color uniformity. If coarse hard straw is processed, then 1 to 2% borax is added to the water.

After bleaching, the straw is thoroughly washed with water and a small amount of acetic acid. The most suitable for dyeing straw are acid dyes, with which you can get the most diverse, beautiful and bright shades of sufficient strength.

The dyeing process itself is carried out as follows.

Water is poured into the boiler and 1 to 3% acetic acid with a density of 6 °Be is added. Dissolve the paint in boiling water, add it through a fine sieve into the cauldron and mix well. The amount of dye is taken from 3 to 35 g per kilogram of straw, depending on the desired shade.

Put the boiled or bleached straw in a cold paint solution, then gradually heat the solution to a boil for about 0,75-1 hour and maintain this low boiling temperature until the straw is dyed, i.e. for about 1-3 hours.

After that, heating is stopped, the heat is removed from the firebox and the straw is left in the solution for another hour, and for painting in dark colors for the whole night. Then the straw is taken out of the boiler, rinsed thoroughly and dried in air at ordinary temperature.

When repainting worn straw hats, they must first be boiled in water with the addition of soda ash and ammonia. In addition to dyeing woven straw, dyeing straw stalks in bunches is practiced.

Author: Korolev V.A.

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