Intelligent design of Yankee Coatings - Paper Technology International 2023 - Paper Technology International 2023 - Flipbook - Page 127

Intelligent design of Yankee Coatings - Paper Technology International 2023

PAPERTECHNOLOGYINTERNATIONAL Intelligent design of Yankee Coatings - Paper Technology International 2023
Figure 8: Before and after photographs of parent reel build on an NTT hybrid machine when changing the Yankee coating from a
PVOH/competitive PAE program to a PVOH/Navigator PAE program.
CONCLUSION
Yankee coating considerations for the three major machine types discussed in this review are summarized in Table III. The major
points discussed in this review include,
•
Creping is the key unit operation in the tissue making process and largely defines the end-product attributes of the tissue. It
is governed by a complex interaction between mechanical, operational, and chemical factors.
•
Yankee coating is critical to the creping process and, therefore, to the overall performance of the tissue machine both in
terms of operational efficiency and finished product quality.
•
The coating design needs to accommodate the machine type (operating conditions) and grade considerations (fiber and wet
end chemistry). Therefore, innovative coating suppliers strive to provide a comprehensive range of adhesive platforms that
are tailored to these different conditions.
•
Equally important is a full range of other coating components including releases, modifiers, humectants, and phosphates.
•
Aligning the correct coating to machine type and operating conditions drives enhanced and more consistent sheet quality
and machine efficiency.
References
1.
“Sheet Structure Process Effect on Tissue Properties,” Bruce W. Janda, TAPPI PaperCon 2014, Nashville, TN, April 27-30, 2014.
2.
“The Evolution of Tissue Manufacturing Technologies,” Lee Reisinger, NC State University Online Tissue Conference 2021, January 12-14, 2021.
3.
“Yankee Coating Systems – The Functional Interface,” S. Archer and G. Furman, Tissue World, Barcelona, Spain, March 18-21, 2013.
4.
“Coating Space – A 3-D View of Creping Cylinder Coatings,” ABTCP Conference, S. Archer, G. Furman, and C. Llanos, Sao Paulo, Brazil, October 2005.
5.
“Effects of Modifying Agents on Adhesive Film Properties,” G. Furman, V. Grigoriev, W. Su, and C. Kaley, Tissue World Americas Conference, Miami Beach,
Florida, September 2004.
6.
“Wet End Impacts on the Creping Transformation,” V. Grigoriev, G. Furman, S. Archer, W. Su, C. Kaley, and G. Frette, Paper Technology, 49, no. 8, 9-16,
December 2008.
7.
“Creping Optimization – Look One Step Back,” S. Archer, G. Furman, and W. Daily, Tissue World Americas Conference, Miami Beach, Florida, March 2006.
8.
“New High Adhesion Creping Technology for Improved Sheet Properties and Energy Savings,” V. Grigoriev, G. Furman, and G. Frette, Tissue World 2009
Conference, Nice, France, March 23-26, 2009.
9.
“Effect of a New High Adhesion Creping Technology on Machine Runnability and Tissue Quality,” L. Liakopoulos, G. Furman, L. Bonday, D. Hatzinikolaou,
and F. Liu, Appita J., 68, no. 3, pp. 246-252, (July-Sept., 2015).
10. “New Simplified High Performance Yankee Coating for Advanced Machines,” G. Furman, Tissue World Miami Conference, March 15-18, 2022.
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