Phenolic Yellowing

COURSE OVERVIEW

The discoloration of textiles developed during production, processing, usage and storage is known as phenolic yellowing. It is one of the most common quality problems on synthetic fibers, especially on polyamide.

The focus of this course is on the following topics:

• Basics of phenolic yellowing
• Source and conditions for phenolic substances and yellowing
• Chemical reaction of phenolic yellowing
• Prevention of phenolic yellowing by Sera^® Protect N-APY
• Removal of phenolic yellowing with Sera^® Con M-FAS New
• Test method for phenolic yellowing