Laminate Packaging for Nicotine Chewing Gum
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Solution Overview
Problem
Nicotine-containing chewing gum experiences significant evaporation and degradation due to its volatile nature, leading to a brownish layer on blister pack foils and a loss of up to 5% nicotine, and the packaging is perceived as anti-social and noisy, making it inconvenient for consumers.
Innovation Solution
A nicotine-containing chewing gum piece is packed in a laminate with a metal foil barrier layer, shaped as an elongate plate to minimize evaporation and degradation, and sealed in edge areas to prevent noise and social stigma, using cold or ultrasonic welding for packaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nicotine-containing chewing gum is manufactured in a classical pellet shape with coating or wax polish to minimize evaporation, then nicotine stability is improved, but the packaging becomes noisy and anti-social when consumed
Solution Approach 1:
The patent uses a flexible foil wrapping that conforms to the elongate plate shape of the chewing gum, creating a silent packaging system. The flexible film allows the gum to be compressed quietly between fingers while maintaining the protective barrier against evaporation and degradation.
Solution Approach 2:
The patent changes the shape of the chewing gum from a classical oval pellet to an elongate plate format, increasing the surface area to volume ratio. This dimensional change allows the gum to be compressed more effectively between fingers, reducing the noisy blister pack sensation while maintaining nicotine stability through the foil wrapping.
2Reliability
If blister packing is used to seal the chewing gum piece off from surroundings, then nicotine degradation is reduced, but the packaging is noisy and provides anti-social feeling
Solution Approach 1:
The patent replaces the rigid blister pack with a flexible foil wrapping that silently conforms to the gum shape. The flexible film provides the necessary sealing protection against nicotine degradation while eliminating the noisy compression and anti-social feelings associated with traditional blister packs.
Solution Approach 2:
The patent extracts the essential protective function of the blister pack (sealing against degradation) while removing the harmful aspects (noise and social stigma). The foil wrapping provides the necessary barrier protection without the problematic characteristics of the traditional packaging system.
3Ease of operation
If the chewing gum piece is shaped as an elongate plate to increase surface area, then evaporation is increased, but the packaging becomes more socially acceptable and silent
Solution Approach 1:
The patent uses a flexible foil wrapping that tightly conforms to the elongate plate shape of the chewing gum, creating an effective barrier that prevents nicotine evaporation despite the increased surface area. The flexible film adapts to the plate geometry, ensuring comprehensive coverage and protection.
Solution Approach 2:
The patent employs a composite packaging system combining the elongate plate gum format with a foil wrapping layer. This composite approach allows the gum to have the socially acceptable silent compression characteristics while the foil layer provides the necessary protective barrier against evaporation and degradation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The laminate packaging effectively reduces nicotine evaporation and degradation, provides a more socially acceptable form factor, and allows silent consumption, maintaining nicotine stability and consumer convenience.
Implementation Method 1
the laminate comprises a nicotine degradation agent barrier layer of a metal foil
Implementation Method 2
in order to stabilize nicotine with a cation exchange resin, such as Amberlite®. In has thus been accepted to have a loss of up to 5% of the nicotine contained in the chewing gum piece, which loss is caused by both evaporation and degradation of the nicotine prior to consumption by the user
Implementation Method 3
Nicotine is a very volatile substance at room temperature, and it is a very well known problem for nicotine-containing chewing gum that nicotine evaporates from the gum material in the period from manufacture to consumption
Implementation Method 4
the inner layer of the laminate must be a nicotine barrier layer, more specifically a layer of nitrile rubber modified acrylonitrile-methyl acrylate copolymer
Implementation Method 5
using cold or ultrasonic welding for packaging
Implementation Method 6
The sealing of the fin area and of the two sealed end areas is a cold sealing
Data Source
AI summary
A nicotine-containing chewing gum piece packed in a wrapping of laminate, where the laminate comprises at least an inner layer facing the chewing gum and a nicotine degradation agent barrier layer of a metal foil. The nicotine-containing chewing gum piece is shaped as an elongate plate having two ends and a thickness and a length, where the length is in the range of 8 to 20 times the thickness. The wrapping has two elongate edges sealed to one another in a fin area extending along the length of the chewing gum piece and two sealed end areas extending beyond the ends of the chewing gum piece.