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Week 7: Current Trends in Food Packaging I - Coggle Diagram
Week 7: Current Trends in Food Packaging I
Global Packaging Trends 2020 :check:
Ahead of the Recycling Curve: Sustainability through recycling and alternative materials
Paper-based flexible packaging increasing popularity due to usage of sustainably source materials
2 Examples
Danish beer (Carlsberg) with Together Towards Zero Initiative: Creates the first paper beer bottle with sustainable wood fibres
Inner barrier
Bio-based polyethylenefuranoate (PEF) film
Thin recycled PET film
Possibly coated with: Paraffin Wax
Nestle’s KitKats in Japan: replacing the glossy plastic packaging film with paper wrapper
aims to cut down about 380 tons of plastic each year.
Greater clarity on food packaging that can be recycled could encourage consumers to recycle more frequently
In-store Refill: Offering consumers more choices besides plastic by offering package-free stores, plastic-free aisles, refillable packages
Rapid growth for packaging free stores
Challenge: Branding is challenging without packaging -> need to offer memorable experiences through refilling
GLOBAL PACKAGING TRENDS 2019 :check:
Reinventing the Box
Currently: Global increase of online shopping. E-commerce sales forecast to $4 trillion by 2020
E-commerce packaging must deliver products safely while providing convenience
4 Expectations of Packaging
Robust & unbreakable
Withstand temperature abuse
Packaging compact
Easy return feature
Connected Packaging: Trends to engage, entertain and interact with online world consumers to shopper moment to drive purchases
Build brand name, provide product info./offer or provide real-time feedback
Intelligent & Active Packaging:
Intelligent Packaging: contains an external/internal indicator capable to sense and provide information about historical aspect of package and/or the quality of food :check:
3 categories
Provide convenience
Protect against theft, counterfeiting and tampering
Example
Johnnie Walker Blue Label “Smart Bottle”Use printed sensor tags with Near Field Communication (NFC)
consumer can access digital info. using NFC enable smartphone
Detect state of bottle (open/sealed), track bottle through supply chain, tackle counterfeiting and assure bottle’s authenticity
Improve product quality and product value
3 examples
Gas Concentration Indicator
Example
Ageless Eye Oxygen Indicator: Redox-indicator that in presence of oxygen will result in colour change
Time-Temperature Integrators (TTI)
2 Examples
3M MonitorMark : provide an easy-to-read visual signal to estimate the minimum amount of time a product has spent above the threshold temperature.
Uses Migration of proprietary viscoelastic polymer materials into porous matrix at a temperature dependent rate
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Fresh-Check: Response is based on solid state polymerisation reaction. Colour of active centre is compared with reference colour
Insignia After Opening Freshness Labels:Indicate freshness of foods, opening time, integrity of cold chain system or tampering/damage of packaging
Active Packaging: Packaging whereby subsidiary constituents have been added deliberately to enhance the performance of the packaging system
Have the ability to achieve the following to extend product shelf life
Add desirable ingredient
Prevent microbial growth
Change physical conditions inside package
Remove unwanted components
3 Examples
Oxygen scavengers Use either powdered iron or ascorbic acid
Size & type depends on:
Food nature ( size / shape / weight )
Dissolved oxygen in food
Initial oxygen level
OTR of packaging material
Iron powder more common due to its ability to reduce O2 headspace concentration to <0.01%
Example: Cryovac UV triggered oxygen scavenger film
Oxygen scavenger is blended with a photoinitiator and extruded into high barrier film with mentioned capability to reduce oxygen to 4-10 ppm
A photoinitiator is a molecule that creates reactive species (free radicals, cations or anions) when exposed to radiation (UV or visible).
Removes oxygen when exposed to Uv light
Ethylene Absorbers: Minerals with C2H4 absorbing properties. They are translucent and can increase gas permeability
Examples
Zeolite sintered with small amount of metal oxide before dispersing into plastic film
Sintering: compacting and forming a solid mass of material by heat or pressure without melting it to the point of liquefaction.
happens naturally in mineral deposits or as a manufacturing process used with metals, ceramics, plastics, and other materials.
Though minerals have adsorbing property but often disappear after they have been incorporated into plastic film.
potassium permanganate (KMnO4): oxidize C2H4 to acetaldehyde then acetic acid which further oxidised to CO2 and H2O.
Due to toxicity of KMnO4, only 4 - 6% is added to inert substrate such as alumina, silica gel or activated carbon and placed inside a sachet
Pumice
Microwave Susceptor Film: PET Film with thin vacuum-deposited coating of aluminium vaporized under high temeprature
When used in microwave oven the susceptor absorbs energy from microwave
Uses induction heating to heat food surface up to 200 Deg C
Coil of wire produces a magnetic field around and directly above it. Creates swirling electricity that flow through film. t's a kind of whirling, swirling electric current with lots of energy but nowhere to go; we call it an eddy current. As it swirls around inside the metal's crystalline structure, it dissipates its energy. So the metal pan gets hot and heats up whatever food is inside it, first by conduction (it passes its heat energy directly to the food)
