| Date: |
Monday, January 1, 2001
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| Question/Topic: |
Dyes and dyeing - making colorfast
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| Answer/Pointer: |
Dyes and dyeing - making colorfast
The Rit Consumer Service Laboratory offers this method of setting color.
Prepare a bath containing 2 or 3 gallons of hot water in which are dissolved
1/3 to 1/2 ounce (1 teaspoon) of copper sulfate crystals (available at drug stores)
and 1 cup of white household vinegar. Heat this solution until it is just hotter
than hand-warm, about 120 to 140 degrees Fahrenheit. Wet the dyed fabric
and then immerse it in the solution and stir the article for half an hour. Rinse it
thoroughly in cool water, then dry. Although this procedure will help set the color,
it may also dull the shade slightly. Be careful to keep the setting solution out of
the reach of children because copper sulfate is poisonous.
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| Librarian: |
LCLCPL
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| Comments: |
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