of polyaspartic acid alcohol acetone and other lower ketones and glycerin the second stage b of the method according to the invention comprises adding the primary retention and drainage agent at one or more points between the position points 1 a and 10 c of the process stream drawing of fig1 preferably the primary retention and drainage agent is added at the following points point 9 before the fan pump 80 point 10 a before the pressure screen 90 point 10 b inside the pressure screen 90 and point 10 c after the pressure screen 10 c the preparation and adding of the primary retention and drainage agent is preferably in the paper factory of the client if the products are solid then the dissolution is done in an automatic powder dissolution unit if they are liquids it is done by means of an on line dilution dosing pump the dosage range of the primary retention and drainage agent lies between 50 and 10 000 g ton final paper by comparison in a conventional system such as the organopol system the recommended adding points are the following point 3 adding organosorb bentonite dispersion at the level box 50 and point 10 c adding organopol linear polyacrylamide after the pressure screen 90 generally in the process of the present invention the sequence of adding the primary and secondary agents can be done indistinctly that is first the secondary retention and drainage agent and then the primary retention and drainage agent or vice versa first the primary retention and drainage agent and then the secondary retention and drainage agent additionally in some applications.