Textile Manufacture                119 
another dye bath. This is used often in striped material. 
(b) Cross dyeing is done in the piece in materials which 
have both cotton and wool fibres. Cotton will not take wool 
dyes; in consequence it may be used to give a white stripe 
or 'plaid in colored materials. (c) In discharge dyeing the 
material is also piece-dyed a solid color; then some of the 
color, in the pattern desired, is removed by chemicals.