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Microanalysis Of Polymer Chain Diffusion In Heat Seals, Russell Cooper
Microanalysis Of Polymer Chain Diffusion In Heat Seals, Russell Cooper
All Theses
Heat sealing is an integral method for the closure and protection of packaging. Previous work has shown that seal strength is developed by the interdiffusion of polymer chains within heat seals. Heat seals were made between two dissimilar materials. Poly(ethylene-co-acrylic acid) (EAA) was heat sealed to ionomer. Diffusion within the EAA-ionomer heat seals was estimated. The diffusion estimates were then related to resulting seal strength in the EAA-ionomer sealant system. Heated tooling sealing was utilized to make heat seals at 40 psi (275.79 kPa), 0.5 seconds, and a range of temperatures between 180˚F (82.22˚C) and 300˚F (148.89˚C). Scanning electron microscopy …
The Differences In Consumer Attention When Purchasing Products Packed With Kraft Vs. Simulated Kraft Substrate In A Retail Environment, Gabrielle Conlon
The Differences In Consumer Attention When Purchasing Products Packed With Kraft Vs. Simulated Kraft Substrate In A Retail Environment, Gabrielle Conlon
All Theses
In order to remain on store shelves and stay competitive among the overwhelming number of packaged goods on today's shelves, companies will continue to be required to cut packaging material and increase sustainability. Current packaging is made using a variety of paperboard materials including Solid Bleached Sulfate (SBS), Coated Recycled Board (CRB) and Uncoated Recycled Board (URB), also known as Kraft. While both SBS and CRB feature a smooth, white printing surface ideal for high quality graphics, Kraft is typically associated with a dull printing surface and lower-quality graphics. Companies and brands interested in marketing to the eco-friendly consumer are …