Process for improving the colour of sulphate pulp and...

Details Process for improving the colour of sulphate pulp and... Process for improving the colour of sulphate pulp and...

D - Textiles, Paper

21

C

8/82

D21C 9/16 (2006.01)

Patent

CA 1129157

ABSTRACT OF THE DISCLOSURE Kraft or sulphate pulp is used in the unbleached state for the production of packaging material because of its good strength properties. However, the unbleached Kraft or sulphate pulp is not suitable for packaging material for food since it has an ugly brown colour and an unpleasant odor due to the decom- position process and the washing with condensates from evapora- tion. According to the invention, the Kraft or sulphate pulp may be brightend by approximately five points and deodorized by means of peroxide without reducing the strength. The treatment can be carried out in conventional plants for the production of pulp after diffusion washing in a thick-pulp tower. Hydrogen peroxide is preferably used as the peroxide.

345493

Affiliated with

Also associated with

Rating

Process for improving the colour of sulphate pulp and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for improving the colour of sulphate pulp and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for improving the colour of sulphate pulp and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-828249