Technidyne Measurement and Control of the Optical Properties of Paper

As a part of Technidyne’s vision to continue to share our extensive knowledge on the measurement and control of the optical properties of paper, the object of this manual is to present the basic fundamentals of this subject in a concise and understandable way. It is intended for newcomers to the field and for those who will benefit from a “refresher course.”

Optical property topics covered include:

• The Human Observer
• The Physics of Light
• Color
• Brightness
• Whiteness, Tint & Yellowness
• Fluorescence
• Opacity
• Gloss
• Residual Ink (Eric 950)
• Calibration Standards

The material presented is basic and fundamental in nature and presumes no previous knowledge or training on the part of the student. It emphasizes methods and practices which are most commonly employed in the Pulp and Paper Industry.