Selection of milling & pre-metallised HOT WATER dyes. Dye at the boil with addition of Acetic Acid.
Bright strong colours. Dyes have very high light and wash fastness.
Sandolan & Lanasyn are registered trade names of Clariant.
Dye: 3 - 4 % of dry material weight (for deep shade)
Acetic Acid: 10 ml (3 teaspoons) per each litre of water
Water: 30 - 40 litre per kilo of dry material
Dye strength is best determined by test dyeing sample of material.
Some dyes e.g. Rhodamine, Violet and Turquoise require dyeing of only 0.5 - 1%
Add dissolved dye, Acetic Acid & Material to the dye bath. Raise heat and dye at or close to the
boiling point for approximately 45 minutes. Remove material from the dye bath and rinse in cold water.
This is a standard commercial recipe. After the dyeing is finished the dye bath should be completely
"exhausted" with little or no colouring matter remaining in the dye bath. In practical craft situations it is
quite possible (and frequently done) to shorten the dyeing time down to 15-30 minutes.
The random effects produced by dipping or tie dyeing can also be produced using a technique of applying a cold, thickened solution of dye to yarn, and storing cold for 24 hours. Greater variety can be produced by this method as it is possible to apply the colours in ways not possible with the dip method. This application is simple and direct, although special chemicals and auxiliaries are needed. The method shown is for nylon and wool.
RECIPE FOR COLD PAD BATCH ON WOOL AND NYLON
Preparation of one litre of solution.
Acid Dye (0.5 - 3grams)
Urea crystals 300gr
Wetting Agent 2 ml LYOGEN
Acetic Acid (65%) 3 ml
Thickening agent 10 g Manutex RS dissolved in little methylated spirit.
1. Measure 500 ml of water at 40°C in a glass beaker and add urea.
In a separate beaker, wet out the Manutex RS with the methylated spirits and stir to remove lumps.
2. Add the Manutex/methylated spirits mixture to the dissolved Urea solution and stir rapidly until all the lumps have been dissolved.
3. Add the acetic acid and wetting agent and stir well, strain the mixture through a fine cloth and make up the volume to 1 litre.
4. Divide this mixture into 5 or 6 equal parts. Weigh up 5 or 6 different wool dye powders and dissolve them separately in a minimum of hot water.
5. Add the dye solutions to the separate Urea/Manutex mix and stir till the dye is dissolved.
a. Pour the dye solution carefully over sections of the hank to give multiple bands of colour. When all dyes have been poured, place hank in an old towel and either wring or roll with a rolling pin along the length of the hank.
b. Remove the hank from the towel and place in a plastic bag and store for 24 hours at room temperature.
c. Wash in a warm detergent bath and dry