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The manufacture of low density paper such as tissue and towel utilizes the creping process that consists of adhesively bonding the paper in wet state onto the surface of a smooth drying cylinder and scraping it off with a blade once the sheet is dry. In this paper, a fracture mechanics description of the creping process is presented. A mechanism of creping process is proposed as a periodic debonding with a mixed-mode fracture criterion with buckling of an elastic thin film. Finite element models validating creping mechanism will also be presented. Numerical calculations show results consistent with experimental data and known industrial observations. The model provides guidance in understanding and optimizing the creping process to produce high quality products.
Sponsored by the Recovery Boiler Program R&D Subcommittee of the American Forest & Paper Association (AF&PA) and published by TAPPI Press.
The best-selling text to introduce the entire technology of pulp and paper manufacture.
A project of the Yankee Dryer Safety & Reliability Committee.
TAPPI Press offers some of the most in-depth resources and references for the forest products and related industries.
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