Adhesive Tear Strip for Tamper-Evident Cigarette Packaging
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Solution Overview
Problem
Conventional tamper-evident cigarette package designs often lead to increased litter and material waste, and may require expensive and precise manufacturing processes, such as perforating paperboard blanks.
Innovation Solution
A cigarette package design featuring a box with a lower body portion and upper body portion defining a lid, where a tear strip is adhesively coupled to the lid and base front walls, providing a tamper-evident feature that eliminates the need for separate transparent outer wrappings or pull tabs, and is formed from recyclable materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional tamper-evident designs use separate transparent outer wrappings and pull tabs, then the package provides tamper evidence, but the package generates increased litter and material waste
Solution Approach 1:
The patent combines the tamper-evident tear strip with the front walls of the lid and base, eliminating the need for separate transparent outer wrappings and pull tabs. The tear strip is integrally formed with and adhered to the front walls, creating a unified structure that provides tamper evidence while reducing material usage and litter.
2Ease of operation
If conventional designs use perforated paperboard blanks for tear strips, then the package provides easy opening, but the manufacturing process becomes expensive and complex
Solution Approach 1:
The patent changes the manufacturing approach from perforation to adhesion. Instead of using expensive and complex perforated paperboard blanks, the tear strip is formed as a separate component and adhered to the front walls using adhesive. This parameter change in the manufacturing process simplifies production while maintaining the easy-opening function through the tearable nature of the adhered strip.
3Loss of substance
If a tear strip is adhesively coupled to the front walls, then the package reduces material waste, but the manufacturing precision requirements increase
Solution Approach 1:
The patent extracts the tear strip as a separate component that can be independently manufactured and then adhered to the front walls. This extraction allows for standardized production of the tear strip with adhesive application, which can then be precisely positioned and attached to the front walls, reducing overall manufacturing complexity while maintaining precision requirements at a manageable level.
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 design reduces waste and litter by using a minimal amount of recyclable material for the tear strip, which is both tamper-evident and easy to manufacture, indicating unauthorized access by detecting removal or disruption, thus ensuring the integrity of the cigarettes.
Implementation Method 1
the front walls are coupled together by an adhesive material
Data Source
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AI summary
A package containing cigarettes includes a box having a lower body portion defining a base, an upper body portion defining a lid, and a tear strip. The base includes a base bottom wall, a base front wall, and a base rear wall. The lid includes a lid top wall, a lid front wall, and a lid rear wall. The tear strip is adhesively coupled to the lid front wall and the base front wall, and an outer surface of the lid and the lower body portion is exposed to be touched by a user.