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Introduction to Wet End Chemistry

July 2 - July 3

Course Objective:
Gain an understanding of how colloidal materials can be used and controlled to give you desired
paper properties and improved paper machine efficiency.

Day 1—Morning:
Understanding & measuring colloidal properties
 What are colloidal materials
How colloidal systems are stabilised & destabilised
Measurements of colloidal properties &
other related chemical properties
Use of these measurements to improve
paper machine operations

Day 1—Afternoon:
Use of inorganic colloidal solids – Fillers
 Type of fillers used in paper making
Effect of fillers on paper properties & paper
making
Recent developments to maximise filler use

Day 2—Morning:
Use of colloidal material to give desired paper
properties
 Strength additives
Nanocellulose, starch, wet strength & dry
strength additives
 Shade control, Dyes & OBAs
 Surface modifications additives
Wet end size, size press & coatings

Day 2—Afternoon:
Control of colloidal material to improve paper
machine efficiency
 Control of undesirable colloidal materials
Pitch, scaling & anionic trash
 Improve retention of desired colloidal
material
Retention & drainage aids
 Control of microbiological contaminants
 Yankee dryer chemistry

Organizer

Paper Industry Technical Association
Email:
Helen@pita.org.uk
Website:
https://www.pita.org.uk/

Venue

PITA Office, Bury
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