Chemical technology breakthrough targets significant Yankee Dryer performance improvement

Thomas L. Wright, technical director, Georgia-Pacific Chemicals, explains how the NAVIGATOR coating programme is designed to operate in today’s demanding environment of high temperatures and low reel moisture. A TWM report. The Yankee Dryer reflects the sum total of all the profile and moisture variables of a paper machine. This makes the Yankee Dryer coating...

Utilising KemView™ sheet analyser to optimise softness and control the creping process

By Kemira’s Clay Campbell, Lucyna Pawlowska, Xiaosong Huang There are different roads one can take to achieve tissue softness. The key is to be able to determine how to get there and when you are at your target destination. An easy and reliable measurement of sheet properties that determine softness will help to choose the most effective path and set a...

Grade specific optimisation: Permanent (PAE) versus temporary (GPAM) wet strength utilisation

By Kemira’s Clay Campbell, Harold Goldsberry, Kristin Wittich and Felipe Higa Kemira talks us through the latest chemical technical developments relevant to your business. Historically, it has been quite clear in the manufacture of hygienic paper grades (bath, towel, facial and napkin), which ones have wet tensile specifications and the type and level of wet...

Utilising novel temporary wet strength for the AfH towel market. A TW report

By Kemira Chemicals’ Clay Campbell, Chen Lu, Junhua Chen, Harold Goldsberry, Adrian Stuart Polyamidamine epiclorohydrin (PAE) resins are widely used to provide permanent wet strength (PWS) properties in the away from home (AfH) towel market. However, high PAE usage can cause operation problems, reducing machine’s operational equipment efficiency (% OEE). In...

Improved DAF control delivers water savings and minimises TCO. A TW report

By Nalco’s Michael Murcia, Mita Chattoraj, JC Ye, Steve Hoefs Dissolved air flotation (DAF) units are used throughout the paper industry for solids / liquid separation in process and primary wastewater treatment applications. The performance of these DAFs is often left to manual control schemes that are dependent on the operations staffs’ ability to...

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