Klarquist Sparkman Campbell Leigh & Whinston, LLP
Bleaching and coating a paper web with peroxide and starch
 A method for bleaching a paper web with peroxide and to a paper surface treatment mixture intended for such a method. According to the invention, peroxide is introduced onto a moving paper web as part of the said mixture, which in addition to the peroxide contains another active component, such as a bonding agent or a surface coating, to be introduced onto the web. The bonding agent may be made up of starch and a surface coating pigment, such as calcium carbonate, kaolin or talc. Peroxide is added to these so that its amount on each side of the web to be bleached will be approx. 0.08-1.0 g/m.sup.2. 
Kymi Paper Mills Ltd.
D
D21H
inventional
Outi-Maija K. Heikki Y. Markku T. O.
Teittinen Hassi Johansson