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14 August 2011

2. Some terms and definitions should be known before dyeing

Mordant : A chemical that helps the binding of dye or dyestuff  to the fibers for both fiber and dye.

Owf : On weight of fibre, normally expressed in percentage.
  
Omf : On  mass of fibre

Padding : A dyeing method with very low liquor to good ratio, where typically only enough strong dye solution is used to saturate the fabric

Pigment dyeing : Coloring fabric with  ground pigments mixed with a binder rather than a true dye.

Soaping or soaping off : A process of washing the dyed fabric with hot water with surfactants or cleaning agents, soap, detergent to remove the fixed dye. 

Softener (fabric softener) : A chemical or chemical mixture like lubricant stands for to give fabric a soft hand.
Softener (water softener) : Chemicals used to water to prevent hardness ions from interfering with other solutes.

Stripping : The process to remove  uneven dye from fabric before redyeing it.

Stock solution: A solution of known strength, made up with the intent of dilution or mixing before final use. Stocked will  be discussed future.

Substantive(ity) : The rate of dye to transfer from solute to solution.

Subtractive : With reference to color, removal of colors from light reflected from a surface.

Surfactant : Surface active agent.

Syntan : Synthetic tanning agent.

Wetting agent: An agent helps to increase the uptake of the dye by the fibre or to penetrate solution by wetting it.

W/w : Abbreviation of weight/weight.

W/v : Abbreviation for weight/volume. 

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