Date of Award


Degree Name

Bachelor of Science


Paper Science and Engineering

First Advisor

Dr. Stephen Kukolich


Dow Saran Microspheres as a light weight high bulk filler has been plagued with certain problems, due to the distribution and retention of the microspheres within the sheet. These problems concern dusting and build-up of the microsphere polymer on the dryer cans and during the printing operations on the finished base sheet.

Single and dual retention aid systems were studied and analyzed as a possible solution to the poor distribution and retention of the spheres within the sheet.

Based on this experimental data, the dual retention aid system proved far superior in improving sphere distribution as well as sphere retention. The Scott Bond Tester, X-ray Fluorescense Analyzer, and Formation Tester were used to compile the microsphere data.