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Accelerating the convergence of active functional materials and food packaging materials
Flexible films
Bottles
Caps and liners
Printed cartons
Integrated Packaging Materials Applications
Food / Package interaction can disrupt the flavor balance of a food or beverage several ways:
» Addition - when the package releases compounds, originally contained by the package, that alter the flavor balance of the food & beverage.
» Subtraction - when mobile food and beverage flavor components transfer to package polymer / structure.
» Reaction - when chemically active materials in the package become sources of chemical precursors susceptible to oxidation and ozonolysis producing undesirable taints that migrate to the food and beverage.
Benefits of Cellresin's technology for solving food/package interactions:
 A barrier polymer layer containing a dispersed CD (derivative or polymer grafted CD) can obtain substantial barrier properties by entrapping migrants and permeants.
A sealant layer containing a polymer grafted CD improves interfacial interaction of conventional polyolefin polymers by changing partition coefficients, polymer solubility coefficients due to hydrophobicity and greater crystallinity thereby reducing the sorption of terpene/ sesquiterpene oils in citrus juices.
Residual organoleptic volatiles produced either from chemical oxidation by ozone or through thermo-oxidation or photo-oxidation of the closure, can be effectively reduced by dispersion of a CD composition within the closure preventing migration into the beverage.
Ink odor reduction for lithographic printed products is achieved with an active chemical scavenger dispersed in the overprint coating and fountain solution. After printing, the compositions retain a residue comprising the active scavenger in the overprint coating layer and ink/fountain solution layer.
Food Chemistry Related Applications
The mechanisms of food quality loss caused by the processes which food and other perishable products degrade.
» Undesirable food decomposition odors and flavors (i.e., rancidity) produced during the food's shelf-life, accumulate within the package headspace giving off unpleasant aroma and destroying desirable flavor.
» Premature ripening and spoilage of fresh fruits, vegetables and produce caused by confinement of respiration products within the package reducing shelf life.
» Malodors emanating from meat and poultry purge in the absorbent pad used in pre-packaged case ready meat and poultry packaging
Benefits of Cellresin's technology for solving food chemistry processes:
A sealant layer containing a grafted CD polymer will extend freshness and product shelf-life by removing unpleasant confinement odors in the package headspace produced by oxidation and hydrolysis of lipid containing foods.
Ripening of fresh fruits and vegetables can be retarded by scavenging ethylene gas and other precursors from the headspace using a CD containing sealant layer.
Porous films and nonwoven materials constructed from grafted CDs and nanometal particles are used in the drip absorbent pad's structure to reduce chicken and fish decomposition confinement odors.
Nonwoven Surface Modification for scavenging odor molecules
Spunbond
Meltblown
Textile
Cellresin's surface modification capabilities are based on our patented polyolefin grafted cyclodextrin technology. This technology delivers a variety of performance enhancing surface characteristics for nonwovens offering a unique approach to applications requiring odor control.
Integrated Nonwoven Materials Applications for Malodor Management
Hygiene products
Medical products
Household articles
Nonwoven fiber produced from polyolefin grafted CD has greater fiber porosity and increased surface energy improving the fiber's absorption of vapor phase molecules. Three CD pore sizes are available and may be used in combination to achieve specific malodor functionality within an application. Since the CD and reactive groups are covalently bonded to the polymer they are non-fugitive and remain in place with use. The fiber's surface is active providing functionality for acid, base and neutral malodors.
CD technology is a crop-based biotechnology material and is considered green technology. Fibers containing the technology can be reclaimed in the process or recycled in other uses.
Nonwoven Malodor Reduction Technology Advantages
- Adsorptive surface sites
- Chemsorptive polymer
- Non-fugitive
- Effective scavenger for acid, base and neutral malodors
- Crop-based biotechnology material can be reclaimed in the process or recycled in other uses
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