METHOD AND APPARATUS FOR CONTINUOUS MANUFACTURE OF SURFACE SIZING STARCH, WET-END STARCH OR BINDER STARCH IN PAPER, CARDBOARD AND CHEMICAL PULP INDUSTRY

摘要

The invention relates to a method and apparatus for continuous manufacture of surface sizing starch, wet-end starch or binder starch in paper, cardboard and chemical pulp industry. The starch slurry is modified as a starch size suitable for the application (6) by exposing the starch slurry to ultra sound in the ultrasonic unit (4, 4a, 4b).