STRIPPING WOOL WITH THIO-UREA

To bleach 1 LB of wool use:

• ¼ oz (7 gm) thio-urea
• ¼ oz (7 gm) washing soda
• ¼ cup white vinegar

Soak your fabric or yarn in water for several hours until it is completely saturated. Wash with mild soap and rinse well.
In an enamelled or stainless steel dye pot put 3-½ to 4 gallons of water. Add ¼ oz Thio-Urea and ¼ oz Washing Soda. Mix well.
Add the wetted wool and heat gradually to 190°F.

DO NOT BOIL—AVOID BREATHING FUMES—WEAR A FACE MASK
Hold at 190F° for 15 to 20 minutes.
Allow goods to cool gradually.
When cool enough to handle easily rinse in clear running water.
Put the fiber in a rinse solution consisting of ¼ cup White Vinegar and about 2 gallons of water.
Wash with a mild soap (Dawn or Ivory, for instance) and hang to dry.

NOTE: Thio-Urea is corrosive and should be used very cautiously. Too much may hurt your wool. Heat—too much or for too long—can also damage.

All wools are different, and you may wish to adjust these instructions slightly. If you feel that these solutions are not strong enough for your purposes, increase the Thio-Urea and the Washing Soda at the same rate, not to exceed one third ounce (9 grams) each per pound of wool.