Level 2 Papermaking - Dry Strength aids

[@yaseriqbal2794]

Cationic starch if used at size press where no threat of drainage is a good idea?, can it provide better strength properties than unmodified starch because of its affinity to fibers?

[@yaseriqbal2794]

Is there anything other than oh groups that improve the bursting strength, e.g binding property of starches with higher amylopectin ratio?

[@luan_dialmeida]

Well done! Nice class.
And about the application of a steam box on the formation section? Is there any concern to do that?

[@PaperClassroom]

The only concern is taking care condensation drops do not form and drop onto the sheet

[@yaseriqbal2794]

Oxidized starch at size press increase dry strength by same mechanism?

[@PaperClassroom]

Thank you for your question. Yes you are correct.