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天然染料(2)【沪江慢速VOA 5-26】
作者:Vitamin_C | 来源:沪江论坛 | 时间:1年前 | 阅读 2472 次   [收藏]  [划词启用]
自古以来人们就开始使用天然染料。这些是自然的,无公害的,绿色的染料

【生词摘录】
celsius 摄氏度

Bringing Color to Life With Natural Dyes (2/2)

Mix 8 grams of alum with 7 grams of cream of tartar in a small amount of hot water. Add the solution to a metal pan of cool water. Next, add the wool and place the mixture over heat. Slowly bring the liquid to 82 degrees Celsius. Heat the mixture for 45 minutes. After it cools, remove the wool and wash it.

To prepare the dye solution, cover 30 grams of onionskins with water. Use only the dry, brown outer skins. Boil the liquid until the onionskins lose their color, about 45 minutes,. Remove the skins after the dye cools.

Now it is time to dye the wool. Place the wool into the dye and heat the mixture. Bring it to a boil, then immediately reduce the heat to 82 degrees. Now heat the dye for about 45 minutes or until the wool is the desired color. Keep in mind that wet wool looks darker than it is.

Once the dye cools, remove the wool and wash it. Now the wool is orange or yellow. Or at least it should be.

      

 

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