Color extraction aid


To extract colour 

 Solvent extraction

There is use of organic solvents such as acetone, petroleum, ether, chloroform

and ethanol in the extraction of natural dyes. It is a very viable technique as compared

to aqueous extraction. The yield of dye is good, and the quantity of water

requirement is less. The extraction is done at lower temperature

Comments

Post a Comment

Popular posts from this blog

Dyes

  Substances that add color to textiles. They are incorporated into the fiber by chemical reaction, absorption, or dispersion. Dyes differ in their resistance to sunlight, perspiration, washing, gas, alkalies, and other agents; their affinity for different fibers; their reaction to cleaning agents and methods; and their solubility and method of application. Various classes and types are listed below.
Read more

Natural Dyes

  are dyes or colorants derived from plants, invertebrates,a or minerals. The majority of natural dyes are vegetable dyes from plant sources from roots, berries, bark, leaves, and wood and other organic sources such as fungi and lichens
Read more