Abstract
MANUFACTURE OF COLOR PAPERS IN HIGH SPEED TWIN WIRE FOREMER WITH PIGMENT DYE – AN EXPERIENCE
K. Rajaganapathy*
ABSTRACT
Production of writing and printing paper of different shades like bluish, reddish, half white, pearl white, ivory white and natural shades are more of a norm than an exception in paper machine. Dyes used to get these shades are either direct, acid dye or pigment dyes. Except for pigment dyes all the dyes are used to give high depth colour in the effluent and slowly phasing out from the use. Pigment dyes filled this place. Pigment dyes give much more appeal and good shade and it delays aging of paper. Pigment dyes reduce the effluent load of colour.
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