Paper
Non-destructive Observation of Laminate Pouch Bonding Quality by Dynamic Heat Conduction Following Flash Heating
- Authors:
- Minoru Aoyagi; Takefumi Hiraguri; Takahiro Ueno
- Abstract
- Lamination is an effective way to protect and preserve materials from destruction or deterioration. In this paper, a method for determining the quality of bonding between a laminate pouch film and paper is described. In this method, rapid heating of the surface of the laminate film bonded to paper by a light flash was followed by thermographic observation of the dynamic changes in surface temperature. The method exploits the differences in dynamic heat transport caused by poor bonding between the laminate and the paper. We carried out verification experiments on test pieces constructed to simulate poor bonding and found that the temperatures in regions of poor bonding were lower compared to regions of good bonding. Here, we outline the theoretical basis of the detection of the poor bonding, and also describe different types of insufficient bonding characterized by a temperature higher than the surrounding material. Finally, we discuss the applications and limitations of the observation method.
- Keywords
- Laminate Pouch Film; Poor Bonding Detection; Thermography; Non-destructive Testing
- StartPage
- 201
- EndPage
- 208
- Doi